Open-ILS/src/c-apps/oils_cstore.c

   1 #include "opensrf/osrf_application.h"
   2 #include "opensrf/osrf_settings.h"
   3 #include "opensrf/osrf_message.h"
   4 #include "opensrf/utils.h"
   5 #include "opensrf/osrf_json.h"
   6 #include "opensrf/log.h"
   7 #include "openils/oils_idl.h"
   8 #include <dbi/dbi.h>
   9
  10 #include <time.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13 #include <unistd.h>
  14
  15 #ifdef RSTORE
  16 #  define MODULENAME "open-ils.reporter-store"
  17 #else
  18 #  define MODULENAME "open-ils.cstore"
  19 #endif
  20
  21 #define SUBSELECT       4
  22 #define DISABLE_I18N    2
  23 #define SELECT_DISTINCT 1
  24 #define AND_OP_JOIN     0
  25 #define OR_OP_JOIN      1
  26
  27 int osrfAppChildInit();
  28 int osrfAppInitialize();
  29 void osrfAppChildExit();
  30
  31 static int verifyObjectClass ( osrfMethodContext*, const jsonObject* );
  32
  33 int beginTransaction ( osrfMethodContext* );
  34 int commitTransaction ( osrfMethodContext* );
  35 int rollbackTransaction ( osrfMethodContext* );
  36
  37 int setSavepoint ( osrfMethodContext* );
  38 int releaseSavepoint ( osrfMethodContext* );
  39 int rollbackSavepoint ( osrfMethodContext* );
  40
  41 int doJSONSearch ( osrfMethodContext* );
  42
  43 int dispatchCRUDMethod ( osrfMethodContext* );
  44 static jsonObject* doCreate ( osrfMethodContext*, int* );
  45 static jsonObject* doRetrieve ( osrfMethodContext*, int* );
  46 static jsonObject* doUpdate ( osrfMethodContext*, int* );
  47 static jsonObject* doDelete ( osrfMethodContext*, int* );
  48 static jsonObject* doFieldmapperSearch ( osrfMethodContext*, osrfHash*,
  49                 const jsonObject*, int* );
  50 static jsonObject* oilsMakeFieldmapperFromResult( dbi_result, osrfHash* );
  51 static jsonObject* oilsMakeJSONFromResult( dbi_result );
  52
  53 static char* searchWriteSimplePredicate ( const char*, osrfHash*,
  54         const char*, const char*, const char* );
  55 static char* searchSimplePredicate ( const char*, const char*, osrfHash*, const jsonObject* );
  56 static char* searchFunctionPredicate ( const char*, osrfHash*, const jsonObject*, const char* );
  57 static char* searchFieldTransform ( const char*, osrfHash*, const jsonObject*);
  58 static char* searchFieldTransformPredicate ( const char*, osrfHash*, jsonObject*, const char* );
  59 static char* searchBETWEENPredicate ( const char*, osrfHash*, jsonObject* );
  60 static char* searchINPredicate ( const char*, osrfHash*, const jsonObject*, const char* );
  61 static char* searchPredicate ( const char*, osrfHash*, jsonObject* );
  62 static char* searchJOIN ( const jsonObject*, osrfHash* );
  63 static char* searchWHERE ( const jsonObject*, osrfHash*, int, osrfMethodContext* );
  64 static char* buildSELECT ( jsonObject*, jsonObject*, osrfHash*, osrfMethodContext* );
  65
  66 static char* SELECT ( osrfMethodContext*, jsonObject*, jsonObject*, jsonObject*, jsonObject*, jsonObject*, jsonObject*, jsonObject*, int );
  67
  68 void userDataFree( void* );
  69 static void sessionDataFree( char*, void* );
  70 static char* getSourceDefinition( osrfHash* );
  71
  72 static dbi_conn writehandle; /* our MASTER db connection */
  73 static dbi_conn dbhandle; /* our CURRENT db connection */
  74 //static osrfHash * readHandles;
  75 static jsonObject* jsonNULL = NULL; //
  76 static int max_flesh_depth = 100;
  77
  78 /* called when this process is about to exit */
  79 void osrfAppChildExit() {
  80         osrfLogDebug(OSRF_LOG_MARK, "Child is exiting, disconnecting from database...");
  81
  82     int same = 0;
  83     if (writehandle == dbhandle) same = 1;
  84     if (writehandle) {
  85         dbi_conn_query(writehandle, "ROLLBACK;");
  86         dbi_conn_close(writehandle);
  87         writehandle = NULL;
  88     }
  89     if (dbhandle && !same)
  90         dbi_conn_close(dbhandle);
  91
  92         // XXX add cleanup of readHandles whenever that gets used
  93
  94         return;
  95 }
  96
  97 int osrfAppInitialize() {
  98         growing_buffer* method_name;
  99
 100         osrfLogInfo(OSRF_LOG_MARK, "Initializing the CStore Server...");
 101         osrfLogInfo(OSRF_LOG_MARK, "Finding XML file...");
 102
 103         if (!oilsIDLInit( osrf_settings_host_value("/IDL") )) return 1; /* return non-zero to indicate error */
 104
 105         // Generic search thingy
 106         method_name =  buffer_init(64);
 107         buffer_fadd(method_name, "%s.json_query", MODULENAME);
 108         char* method_str = buffer_data(method_name);
 109         osrfAppRegisterMethod( MODULENAME, method_str, "doJSONSearch", "", 1, OSRF_METHOD_STREAMING );
 110         free(method_str);
 111
 112         // first we register all the transaction and savepoint methods
 113         buffer_reset(method_name);
 114         buffer_fadd(method_name, "%s.transaction.begin", MODULENAME);
 115         method_str = buffer_data(method_name);
 116         osrfAppRegisterMethod( MODULENAME, method_str, "beginTransaction", "", 0, 0 );
 117         free(method_str);
 118
 119         buffer_reset(method_name);
 120         buffer_fadd(method_name, "%s.transaction.commit", MODULENAME);
 121         method_str = buffer_data(method_name);
 122         osrfAppRegisterMethod( MODULENAME, method_str, "commitTransaction", "", 0, 0 );
 123         free(method_str);
 124
 125         buffer_reset(method_name);
 126         buffer_fadd(method_name, "%s.transaction.rollback", MODULENAME);
 127         method_str = buffer_data(method_name);
 128         osrfAppRegisterMethod( MODULENAME, method_str, "rollbackTransaction", "", 0, 0 );
 129         free(method_str);
 130
 131         buffer_reset(method_name);
 132         buffer_fadd(method_name, "%s.savepoint.set", MODULENAME);
 133         method_str = buffer_data(method_name);
 134         osrfAppRegisterMethod( MODULENAME, method_str, "setSavepoint", "", 1, 0 );
 135         free(method_str);
 136
 137         buffer_reset(method_name);
 138         buffer_fadd(method_name, "%s.savepoint.release", MODULENAME);
 139         method_str = buffer_data(method_name);
 140         osrfAppRegisterMethod( MODULENAME, method_str, "releaseSavepoint", "", 1, 0 );
 141         free(method_str);
 142
 143         buffer_reset(method_name);
 144         buffer_fadd(method_name, "%s.savepoint.rollback", MODULENAME);
 145         method_str = buffer_data(method_name);
 146         osrfAppRegisterMethod( MODULENAME, method_str, "rollbackSavepoint", "", 1, 0 );
 147         free(method_str);
 148
 149         buffer_free(method_name);
 150
 151         osrfStringArray* global_methods = osrfNewStringArray(6);
 152
 153         osrfStringArrayAdd( global_methods, "create" );
 154         osrfStringArrayAdd( global_methods, "retrieve" );
 155         osrfStringArrayAdd( global_methods, "update" );
 156         osrfStringArrayAdd( global_methods, "delete" );
 157         osrfStringArrayAdd( global_methods, "search" );
 158         osrfStringArrayAdd( global_methods, "id_list" );
 159
 160         int c_index = 0;
 161         char* classname;
 162         osrfStringArray* classes = osrfHashKeys( oilsIDL() );
 163         osrfLogDebug(OSRF_LOG_MARK, "%d classes loaded", classes->size );
 164         osrfLogDebug(OSRF_LOG_MARK, "At least %d methods will be generated", classes->size * global_methods->size);
 165
 166         while ( (classname = osrfStringArrayGetString(classes, c_index++)) ) {
 167                 osrfLogInfo(OSRF_LOG_MARK, "Generating class methods for %s", classname);
 168
 169                 osrfHash* idlClass = osrfHashGet(oilsIDL(), classname);
 170
 171                 if (!osrfStringArrayContains( osrfHashGet(idlClass, "controller"), MODULENAME )) {
 172                         osrfLogInfo(OSRF_LOG_MARK, "%s is not listed as a controller for %s, moving on", MODULENAME, classname);
 173                         continue;
 174                 }
 175
 176                 char* virt = osrfHashGet(idlClass, "virtual");
 177                 if (virt && !strcmp( virt, "true")) {
 178                         osrfLogDebug(OSRF_LOG_MARK, "Class %s is virtual, skipping", classname );
 179                         continue;
 180                 }
 181
 182                 int i = 0;
 183                 char* method_type;
 184                 char* st_tmp = NULL;
 185                 char* _fm;
 186                 char* part;
 187                 osrfHash* method_meta;
 188                 while ( (method_type = osrfStringArrayGetString(global_methods, i++)) ) {
 189                         osrfLogDebug(OSRF_LOG_MARK, "Using files to build %s class methods for %s", method_type, classname);
 190
 191                         if (!osrfHashGet(idlClass, "fieldmapper")) continue;
 192
 193                         char* readonly = osrfHashGet(idlClass, "readonly");
 194                         if (    readonly &&
 195                                 !strncasecmp( "true", readonly, 4) &&
 196                                 ( *method_type == 'c' || *method_type == 'u' || *method_type == 'd')
 197                         ) continue;
 198
 199                         method_meta = osrfNewHash();
 200                         osrfHashSet(method_meta, idlClass, "class");
 201
 202                         _fm = strdup( (char*)osrfHashGet(idlClass, "fieldmapper") );
 203                         part = strtok_r(_fm, ":", &st_tmp);
 204
 205                         growing_buffer* method_name =  buffer_init(64);
 206                         buffer_fadd(method_name, "%s.direct.%s", MODULENAME, part);
 207
 208                         while ((part = strtok_r(NULL, ":", &st_tmp))) {
 209                                 buffer_fadd(method_name, ".%s", part);
 210                         }
 211                         buffer_fadd(method_name, ".%s", method_type);
 212
 213
 214                         char* method = buffer_release(method_name);
 215                         free(_fm);
 216
 217                         osrfHashSet( method_meta, method, "methodname" );
 218                         osrfHashSet( method_meta, strdup(method_type), "methodtype" );
 219
 220                         int flags = 0;
 221                         if (!(strcmp( method_type, "search" )) || !(strcmp( method_type, "id_list" ))) {
 222                                 flags = flags | OSRF_METHOD_STREAMING;
 223                         }
 224
 225                         osrfAppRegisterExtendedMethod(
 226                                 MODULENAME,
 227                                 method,
 228                                 "dispatchCRUDMethod",
 229                                 "",
 230                                 1,
 231                                 flags,
 232                                 (void*)method_meta
 233                         );
 234
 235                         free(method);
 236                 }
 237         }
 238
 239         osrfStringArrayFree( global_methods );
 240         return 0;
 241 }
 242
 243 static char* getSourceDefinition( osrfHash* class ) {
 244
 245         char* tabledef = osrfHashGet(class, "tablename");
 246
 247         if (!tabledef) {
 248                 growing_buffer* tablebuf = buffer_init(128);
 249                 tabledef = osrfHashGet(class, "source_definition");
 250                 if( !tabledef )
 251                         tabledef = "(null)";
 252                 buffer_fadd( tablebuf, "(%s)", tabledef );
 253                 tabledef = buffer_release(tablebuf);
 254         } else {
 255                 tabledef = strdup(tabledef);
 256         }
 257
 258         return tabledef;
 259 }
 260
 261 /**
 262  * Connects to the database
 263  */
 264 int osrfAppChildInit() {
 265
 266         osrfLogDebug(OSRF_LOG_MARK, "Attempting to initialize libdbi...");
 267         dbi_initialize(NULL);
 268         osrfLogDebug(OSRF_LOG_MARK, "... libdbi initialized.");
 269
 270         char* driver    = osrf_settings_host_value("/apps/%s/app_settings/driver", MODULENAME);
 271         char* user      = osrf_settings_host_value("/apps/%s/app_settings/database/user", MODULENAME);
 272         char* host      = osrf_settings_host_value("/apps/%s/app_settings/database/host", MODULENAME);
 273         char* port      = osrf_settings_host_value("/apps/%s/app_settings/database/port", MODULENAME);
 274         char* db        = osrf_settings_host_value("/apps/%s/app_settings/database/db", MODULENAME);
 275         char* pw        = osrf_settings_host_value("/apps/%s/app_settings/database/pw", MODULENAME);
 276         char* md        = osrf_settings_host_value("/apps/%s/app_settings/max_query_recursion", MODULENAME);
 277
 278         osrfLogDebug(OSRF_LOG_MARK, "Attempting to load the database driver [%s]...", driver);
 279         writehandle = dbi_conn_new(driver);
 280
 281         if(!writehandle) {
 282                 osrfLogError(OSRF_LOG_MARK, "Error loading database driver [%s]", driver);
 283                 return -1;
 284         }
 285         osrfLogDebug(OSRF_LOG_MARK, "Database driver [%s] seems OK", driver);
 286
 287         osrfLogInfo(OSRF_LOG_MARK, "%s connecting to database.  host=%s, "
 288                 "port=%s, user=%s, pw=%s, db=%s", MODULENAME, host, port, user, pw, db );
 289
 290         if(host) dbi_conn_set_option(writehandle, "host", host );
 291         if(port) dbi_conn_set_option_numeric( writehandle, "port", atoi(port) );
 292         if(user) dbi_conn_set_option(writehandle, "username", user);
 293         if(pw) dbi_conn_set_option(writehandle, "password", pw );
 294         if(db) dbi_conn_set_option(writehandle, "dbname", db );
 295
 296         if(md) max_flesh_depth = atoi(md);
 297         if(max_flesh_depth < 0) max_flesh_depth = 1;
 298         if(max_flesh_depth > 1000) max_flesh_depth = 1000;
 299
 300         free(user);
 301         free(host);
 302         free(port);
 303         free(db);
 304         free(pw);
 305
 306         const char* err;
 307         if (dbi_conn_connect(writehandle) < 0) {
 308                 sleep(1);
 309                 if (dbi_conn_connect(writehandle) < 0) {
 310                         dbi_conn_error(writehandle, &err);
 311                         osrfLogError( OSRF_LOG_MARK, "Error connecting to database: %s", err);
 312                         return -1;
 313                 }
 314         }
 315
 316         osrfLogInfo(OSRF_LOG_MARK, "%s successfully connected to the database", MODULENAME);
 317
 318         int attr;
 319         unsigned short type;
 320         int i = 0;
 321         char* classname;
 322         osrfStringArray* classes = osrfHashKeys( oilsIDL() );
 323
 324         while ( (classname = osrfStringArrayGetString(classes, i++)) ) {
 325                 osrfHash* class = osrfHashGet( oilsIDL(), classname );
 326                 osrfHash* fields = osrfHashGet( class, "fields" );
 327
 328                 char* virt = osrfHashGet(class, "virtual");
 329                 if (virt && !strcmp( virt, "true")) {
 330                         osrfLogDebug(OSRF_LOG_MARK, "Class %s is virtual, skipping", classname );
 331                         continue;
 332                 }
 333
 334                 char* tabledef = getSourceDefinition(class);
 335
 336                 growing_buffer* sql_buf = buffer_init(32);
 337                 buffer_fadd( sql_buf, "SELECT * FROM %s AS x WHERE 1=0;", tabledef );
 338
 339                 free(tabledef);
 340
 341                 char* sql = buffer_release(sql_buf);
 342                 osrfLogDebug(OSRF_LOG_MARK, "%s Investigatory SQL = %s", MODULENAME, sql);
 343
 344                 dbi_result result = dbi_conn_query(writehandle, sql);
 345                 free(sql);
 346
 347                 if (result) {
 348
 349                         int columnIndex = 1;
 350                         const char* columnName;
 351                         osrfHash* _f;
 352                         while( (columnName = dbi_result_get_field_name(result, columnIndex++)) ) {
 353
 354                                 osrfLogInternal(OSRF_LOG_MARK, "Looking for column named [%s]...", (char*)columnName);
 355
 356                                 /* fetch the fieldmapper index */
 357                                 if( (_f = osrfHashGet(fields, (char*)columnName)) ) {
 358
 359                                         osrfLogDebug(OSRF_LOG_MARK, "Found [%s] in IDL hash...", (char*)columnName);
 360
 361                                         /* determine the field type and storage attributes */
 362                                         type = dbi_result_get_field_type(result, columnName);
 363                                         attr = dbi_result_get_field_attribs(result, columnName);
 364
 365                                         switch( type ) {
 366
 367                                                 case DBI_TYPE_INTEGER :
 368
 369                                                         if ( !osrfHashGet(_f, "primitive") )
 370                                                                 osrfHashSet(_f,"number", "primitive");
 371
 372                                                         if( attr & DBI_INTEGER_SIZE8 )
 373                                                                 osrfHashSet(_f,"INT8", "datatype");
 374                                                         else
 375                                                                 osrfHashSet(_f,"INT", "datatype");
 376                                                         break;
 377
 378                                                 case DBI_TYPE_DECIMAL :
 379                                                         if ( !osrfHashGet(_f, "primitive") )
 380                                                                 osrfHashSet(_f,"number", "primitive");
 381
 382                                                         osrfHashSet(_f,"NUMERIC", "datatype");
 383                                                         break;
 384
 385                                                 case DBI_TYPE_STRING :
 386                                                         if ( !osrfHashGet(_f, "primitive") )
 387                                                                 osrfHashSet(_f,"string", "primitive");
 388                                                         osrfHashSet(_f,"TEXT", "datatype");
 389                                                         break;
 390
 391                                                 case DBI_TYPE_DATETIME :
 392                                                         if ( !osrfHashGet(_f, "primitive") )
 393                                                                 osrfHashSet(_f,"string", "primitive");
 394
 395                                                         osrfHashSet(_f,"TIMESTAMP", "datatype");
 396                                                         break;
 397
 398                                                 case DBI_TYPE_BINARY :
 399                                                         if ( !osrfHashGet(_f, "primitive") )
 400                                                                 osrfHashSet(_f,"string", "primitive");
 401
 402                                                         osrfHashSet(_f,"BYTEA", "datatype");
 403                                         }
 404
 405                                         osrfLogDebug(
 406                                                 OSRF_LOG_MARK,
 407                                                 "Setting [%s] to primitive [%s] and datatype [%s]...",
 408                                                 (char*)columnName,
 409                                                 osrfHashGet(_f, "primitive"),
 410                                                 osrfHashGet(_f, "datatype")
 411                                         );
 412                                 }
 413                         }
 414                         dbi_result_free(result);
 415                 } else {
 416                         osrfLogDebug(OSRF_LOG_MARK, "No data found for class [%s]...", (char*)classname);
 417                 }
 418         }
 419
 420         osrfStringArrayFree(classes);
 421
 422         return 0;
 423 }
 424
 425 void userDataFree( void* blob ) {
 426         osrfHashFree( (osrfHash*)blob );
 427         return;
 428 }
 429
 430 static void sessionDataFree( char* key, void* item ) {
 431         if (!(strcmp(key,"xact_id"))) {
 432                 if (writehandle)
 433                         dbi_conn_query(writehandle, "ROLLBACK;");
 434                 free(item);
 435         }
 436
 437         return;
 438 }
 439
 440 int beginTransaction ( osrfMethodContext* ctx ) {
 441         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 442
 443         dbi_result result = dbi_conn_query(writehandle, "START TRANSACTION;");
 444         if (!result) {
 445                 osrfLogError(OSRF_LOG_MARK, "%s: Error starting transaction", MODULENAME );
 446                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error starting transaction" );
 447                 return -1;
 448         } else {
 449                 jsonObject* ret = jsonNewObject(ctx->session->session_id);
 450                 osrfAppRespondComplete( ctx, ret );
 451                 jsonObjectFree(ret);
 452
 453                 if (!ctx->session->userData) {
 454                         ctx->session->userData = osrfNewHash();
 455                         osrfHashSetCallback((osrfHash*)ctx->session->userData, &sessionDataFree);
 456                 }
 457
 458                 osrfHashSet( (osrfHash*)ctx->session->userData, strdup( ctx->session->session_id ), "xact_id" );
 459                 ctx->session->userDataFree = &userDataFree;
 460
 461         }
 462         return 0;
 463 }
 464
 465 int setSavepoint ( osrfMethodContext* ctx ) {
 466         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 467
 468         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 469                 osrfAppSessionStatus(
 470                         ctx->session,
 471                         OSRF_STATUS_INTERNALSERVERERROR,
 472                         "osrfMethodException",
 473                         ctx->request,
 474                         "No active transaction -- required for savepoints"
 475                 );
 476                 return -1;
 477         }
 478
 479         char* spName = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
 480
 481         dbi_result result = dbi_conn_queryf(writehandle, "SAVEPOINT \"%s\";", spName);
 482         if (!result) {
 483                 osrfLogError(
 484                         OSRF_LOG_MARK,
 485                         "%s: Error creating savepoint %s in transaction %s",
 486                         MODULENAME,
 487                         spName,
 488                         osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )
 489                 );
 490                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error creating savepoint" );
 491                 free(spName);
 492                 return -1;
 493         } else {
 494                 jsonObject* ret = jsonNewObject(spName);
 495                 osrfAppRespondComplete( ctx, ret );
 496                 jsonObjectFree(ret);
 497         }
 498         free(spName);
 499         return 0;
 500 }
 501
 502 int releaseSavepoint ( osrfMethodContext* ctx ) {
 503         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 504
 505         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 506                 osrfAppSessionStatus(
 507                         ctx->session,
 508                         OSRF_STATUS_INTERNALSERVERERROR,
 509                         "osrfMethodException",
 510                         ctx->request,
 511                         "No active transaction -- required for savepoints"
 512                 );
 513                 return -1;
 514         }
 515
 516         char* spName = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
 517
 518         dbi_result result = dbi_conn_queryf(writehandle, "RELEASE SAVEPOINT \"%s\";", spName);
 519         if (!result) {
 520                 osrfLogError(
 521                         OSRF_LOG_MARK,
 522                         "%s: Error releasing savepoint %s in transaction %s",
 523                         MODULENAME,
 524                         spName,
 525                         osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )
 526                 );
 527                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error releasing savepoint" );
 528                 free(spName);
 529                 return -1;
 530         } else {
 531                 jsonObject* ret = jsonNewObject(spName);
 532                 osrfAppRespondComplete( ctx, ret );
 533                 jsonObjectFree(ret);
 534         }
 535         free(spName);
 536         return 0;
 537 }
 538
 539 int rollbackSavepoint ( osrfMethodContext* ctx ) {
 540         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 541
 542         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 543                 osrfAppSessionStatus(
 544                         ctx->session,
 545                         OSRF_STATUS_INTERNALSERVERERROR,
 546                         "osrfMethodException",
 547                         ctx->request,
 548                         "No active transaction -- required for savepoints"
 549                 );
 550                 return -1;
 551         }
 552
 553         char* spName = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
 554
 555         dbi_result result = dbi_conn_queryf(writehandle, "ROLLBACK TO SAVEPOINT \"%s\";", spName);
 556         if (!result) {
 557                 osrfLogError(
 558                         OSRF_LOG_MARK,
 559                         "%s: Error rolling back savepoint %s in transaction %s",
 560                         MODULENAME,
 561                         spName,
 562                         osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )
 563                 );
 564                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error rolling back savepoint" );
 565                 free(spName);
 566                 return -1;
 567         } else {
 568                 jsonObject* ret = jsonNewObject(spName);
 569                 osrfAppRespondComplete( ctx, ret );
 570                 jsonObjectFree(ret);
 571         }
 572         free(spName);
 573         return 0;
 574 }
 575
 576 int commitTransaction ( osrfMethodContext* ctx ) {
 577         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 578
 579         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 580                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "No active transaction to commit" );
 581                 return -1;
 582         }
 583
 584         dbi_result result = dbi_conn_query(writehandle, "COMMIT;");
 585         if (!result) {
 586                 osrfLogError(OSRF_LOG_MARK, "%s: Error committing transaction", MODULENAME );
 587                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error committing transaction" );
 588                 return -1;
 589         } else {
 590                 osrfHashRemove(ctx->session->userData, "xact_id");
 591                 jsonObject* ret = jsonNewObject(ctx->session->session_id);
 592                 osrfAppRespondComplete( ctx, ret );
 593                 jsonObjectFree(ret);
 594         }
 595         return 0;
 596 }
 597
 598 int rollbackTransaction ( osrfMethodContext* ctx ) {
 599         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 600
 601         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 602                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "No active transaction to roll back" );
 603                 return -1;
 604         }
 605
 606         dbi_result result = dbi_conn_query(writehandle, "ROLLBACK;");
 607         if (!result) {
 608                 osrfLogError(OSRF_LOG_MARK, "%s: Error rolling back transaction", MODULENAME );
 609                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error rolling back transaction" );
 610                 return -1;
 611         } else {
 612                 osrfHashRemove(ctx->session->userData, "xact_id");
 613                 jsonObject* ret = jsonNewObject(ctx->session->session_id);
 614                 osrfAppRespondComplete( ctx, ret );
 615                 jsonObjectFree(ret);
 616         }
 617         return 0;
 618 }
 619
 620 int dispatchCRUDMethod ( osrfMethodContext* ctx ) {
 621         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 622
 623         osrfHash* meta = (osrfHash*) ctx->method->userData;
 624         osrfHash* class_obj = osrfHashGet( meta, "class" );
 625
 626         int err = 0;
 627
 628         const char* methodtype = osrfHashGet(meta, "methodtype");
 629         jsonObject * obj = NULL;
 630
 631         if (!strcmp(methodtype, "create")) {
 632                 obj = doCreate(ctx, &err);
 633                 osrfAppRespondComplete( ctx, obj );
 634         }
 635         else if (!strcmp(methodtype, "retrieve")) {
 636                 obj = doRetrieve(ctx, &err);
 637                 osrfAppRespondComplete( ctx, obj );
 638         }
 639         else if (!strcmp(methodtype, "update")) {
 640                 obj = doUpdate(ctx, &err);
 641                 osrfAppRespondComplete( ctx, obj );
 642         }
 643         else if (!strcmp(methodtype, "delete")) {
 644                 obj = doDelete(ctx, &err);
 645                 osrfAppRespondComplete( ctx, obj );
 646         }
 647         else if (!strcmp(methodtype, "search")) {
 648
 649                 obj = doFieldmapperSearch(ctx, class_obj, ctx->params, &err);
 650                 if(err) return err;
 651
 652                 jsonObject* cur;
 653                 jsonIterator* itr = jsonNewIterator( obj );
 654                 while ((cur = jsonIteratorNext( itr ))) {
 655                         osrfAppRespond( ctx, cur );
 656                 }
 657                 jsonIteratorFree(itr);
 658                 osrfAppRespondComplete( ctx, NULL );
 659
 660         } else if (!strcmp(methodtype, "id_list")) {
 661
 662                 jsonObject* _p = jsonObjectClone( ctx->params );
 663                 if (jsonObjectGetIndex( _p, 1 )) {
 664                         jsonObjectRemoveKey( jsonObjectGetIndex( _p, 1 ), "flesh" );
 665                         jsonObjectRemoveKey( jsonObjectGetIndex( _p, 1 ), "flesh_columns" );
 666                 } else {
 667                         jsonObjectSetIndex( _p, 1, jsonNewObjectType(JSON_HASH) );
 668                 }
 669
 670                 growing_buffer* sel_list = buffer_init(64);
 671                 buffer_fadd(sel_list, "{ \"%s\":[\"%s\"] }", osrfHashGet( class_obj, "classname" ), osrfHashGet( class_obj, "primarykey" ));
 672                 char* _s = buffer_release(sel_list);
 673
 674                 jsonObjectSetKey( jsonObjectGetIndex( _p, 1 ), "select", jsonParseString(_s) );
 675                 osrfLogDebug(OSRF_LOG_MARK, "%s: Select qualifer set to [%s]", MODULENAME, _s);
 676                 free(_s);
 677
 678                 obj = doFieldmapperSearch(ctx, class_obj, _p, &err);
 679                 jsonObjectFree(_p);
 680                 if(err) return err;
 681
 682                 jsonObject* cur;
 683                 jsonIterator* itr = jsonNewIterator( obj );
 684                 while ((cur = jsonIteratorNext( itr ))) {
 685                         osrfAppRespond(
 686                                 ctx,
 687                                 jsonObjectGetIndex(
 688                                         cur,
 689                                         atoi(
 690                                                 osrfHashGet(
 691                                                         osrfHashGet(
 692                                                                 osrfHashGet( class_obj, "fields" ),
 693                                                                 osrfHashGet( class_obj, "primarykey")
 694                                                         ),
 695                                                         "array_position"
 696                                                 )
 697                                         )
 698                                 )
 699                         );
 700                 }
 701                 jsonIteratorFree(itr);
 702                 osrfAppRespondComplete( ctx, NULL );
 703
 704         } else {
 705                 osrfAppRespondComplete( ctx, obj );
 706         }
 707
 708         jsonObjectFree(obj);
 709
 710         return err;
 711 }
 712
 713 static int verifyObjectClass ( osrfMethodContext* ctx, const jsonObject* param ) {
 714
 715         osrfHash* meta = (osrfHash*) ctx->method->userData;
 716         osrfHash* class = osrfHashGet( meta, "class" );
 717
 718         if (!param->classname || (strcmp( osrfHashGet(class, "classname"), param->classname ))) {
 719
 720                 growing_buffer* msg = buffer_init(128);
 721                 buffer_fadd(
 722                         msg,
 723                         "%s: %s method for type %s was passed a %s",
 724                         MODULENAME,
 725                         osrfHashGet(meta, "methodtype"),
 726                         osrfHashGet(class, "classname"),
 727                         param->classname
 728                 );
 729
 730                 char* m = buffer_release(msg);
 731                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_BADREQUEST, "osrfMethodException", ctx->request, m );
 732
 733                 free(m);
 734
 735                 return 0;
 736         }
 737         return 1;
 738 }
 739
 740 static jsonObject* doCreate(osrfMethodContext* ctx, int* err ) {
 741
 742         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
 743         jsonObject* target = jsonObjectGetIndex( ctx->params, 0 );
 744         jsonObject* options = jsonObjectGetIndex( ctx->params, 1 );
 745
 746         if (!verifyObjectClass(ctx, target)) {
 747                 *err = -1;
 748                 return jsonNULL;
 749         }
 750
 751         osrfLogDebug( OSRF_LOG_MARK, "Object seems to be of the correct type" );
 752
 753         if (!ctx->session || !ctx->session->userData || !osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 754                 osrfLogError( OSRF_LOG_MARK, "No active transaction -- required for CREATE" );
 755
 756                 osrfAppSessionStatus(
 757                         ctx->session,
 758                         OSRF_STATUS_BADREQUEST,
 759                         "osrfMethodException",
 760                         ctx->request,
 761                         "No active transaction -- required for CREATE"
 762                 );
 763                 *err = -1;
 764                 return jsonNULL;
 765         }
 766
 767         if (osrfHashGet( meta, "readonly" ) && strncasecmp("true", osrfHashGet( meta, "readonly" ), 4)) {
 768                 osrfAppSessionStatus(
 769                         ctx->session,
 770                         OSRF_STATUS_BADREQUEST,
 771                         "osrfMethodException",
 772                         ctx->request,
 773                         "Cannot INSERT readonly class"
 774                 );
 775                 *err = -1;
 776                 return jsonNULL;
 777         }
 778
 779
 780         char* trans_id = osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" );
 781
 782         // Set the last_xact_id
 783         osrfHash* last_xact_id;
 784         if ((last_xact_id = oilsIDLFindPath("/%s/fields/last_xact_id", target->classname))) {
 785                 int index = atoi( osrfHashGet(last_xact_id, "array_position") );
 786                 osrfLogDebug(OSRF_LOG_MARK, "Setting last_xact_id to %s on %s at position %d", trans_id, target->classname, index);
 787                 jsonObjectSetIndex(target, index, jsonNewObject(trans_id));
 788         }
 789
 790         osrfLogDebug( OSRF_LOG_MARK, "There is a transaction running..." );
 791
 792         dbhandle = writehandle;
 793
 794         osrfHash* fields = osrfHashGet(meta, "fields");
 795         char* pkey = osrfHashGet(meta, "primarykey");
 796         char* seq = osrfHashGet(meta, "sequence");
 797
 798         growing_buffer* table_buf = buffer_init(128);
 799         growing_buffer* col_buf = buffer_init(128);
 800         growing_buffer* val_buf = buffer_init(128);
 801
 802         buffer_fadd(table_buf,"INSERT INTO %s", osrfHashGet(meta, "tablename"));
 803         buffer_add(col_buf,"(");
 804         buffer_add(val_buf,"VALUES (");
 805
 806
 807         int i = 0;
 808         int first = 1;
 809         char* field_name;
 810         osrfStringArray* field_list = osrfHashKeys( fields );
 811         while ( (field_name = osrfStringArrayGetString(field_list, i++)) ) {
 812
 813                 osrfHash* field = osrfHashGet( fields, field_name );
 814
 815                 if(!( strcmp( osrfHashGet(osrfHashGet(fields,field_name), "virtual"), "true" ) )) continue;
 816
 817                 jsonObject* field_object = jsonObjectGetIndex( target, atoi(osrfHashGet(field, "array_position")) );
 818
 819                 char* value;
 820                 if (field_object && field_object->classname) {
 821                         value = jsonObjectToSimpleString(
 822                                         jsonObjectGetIndex(
 823                                                 field_object,
 824                                                 atoi(
 825                                                         osrfHashGet(
 826                                                                 osrfHashGet(
 827                                                                         oilsIDLFindPath("/%s/fields", field_object->classname),
 828                                                                         (char*)oilsIDLFindPath("/%s/primarykey", field_object->classname)
 829                                                                 ),
 830                                                                 "array_position"
 831                                                         )
 832                                                 )
 833                                         )
 834                                 );
 835
 836                 } else {
 837                         value = jsonObjectToSimpleString( field_object );
 838                 }
 839
 840
 841                 if (first) {
 842                         first = 0;
 843                 } else {
 844                         buffer_add(col_buf, ",");
 845                         buffer_add(val_buf, ",");
 846                 }
 847
 848                 buffer_add(col_buf, field_name);
 849
 850                 if (!field_object || field_object->type == JSON_NULL) {
 851                         buffer_add( val_buf, "DEFAULT" );
 852
 853                 } else if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
 854                         if ( !strcmp(osrfHashGet(field, "datatype"), "INT8") ) {
 855                                 buffer_fadd( val_buf, "%lld", atoll(value) );
 856
 857                         } else if ( !strcmp(osrfHashGet(field, "datatype"), "INT") ) {
 858                                 buffer_fadd( val_buf, "%d", atoi(value) );
 859
 860                         } else if ( !strcmp(osrfHashGet(field, "datatype"), "NUMERIC") ) {
 861                                 buffer_fadd( val_buf, "%f", atof(value) );
 862                         }
 863                 } else {
 864                         if ( dbi_conn_quote_string(writehandle, &value) ) {
 865                                 buffer_fadd( val_buf, "%s", value );
 866
 867                         } else {
 868                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting string [%s]", MODULENAME, value);
 869                                 osrfAppSessionStatus(
 870                                         ctx->session,
 871                                         OSRF_STATUS_INTERNALSERVERERROR,
 872                                         "osrfMethodException",
 873                                         ctx->request,
 874                                         "Error quoting string -- please see the error log for more details"
 875                                 );
 876                                 free(value);
 877                                 buffer_free(table_buf);
 878                                 buffer_free(col_buf);
 879                                 buffer_free(val_buf);
 880                                 *err = -1;
 881                                 return jsonNULL;
 882                         }
 883                 }
 884
 885                 free(value);
 886
 887         }
 888
 889
 890         buffer_add(col_buf,")");
 891         buffer_add(val_buf,")");
 892
 893         char* table_str = buffer_release(table_buf);
 894         char* col_str   = buffer_release(col_buf);
 895         char* val_str   = buffer_release(val_buf);
 896         growing_buffer* sql = buffer_init(128);
 897         buffer_fadd( sql, "%s %s %s;", table_str, col_str, val_str );
 898         free(table_str);
 899         free(col_str);
 900         free(val_str);
 901
 902         char* query = buffer_release(sql);
 903
 904         osrfLogDebug(OSRF_LOG_MARK, "%s: Insert SQL [%s]", MODULENAME, query);
 905
 906
 907         dbi_result result = dbi_conn_query(writehandle, query);
 908
 909         jsonObject* obj = NULL;
 910
 911         if (!result) {
 912                 obj = jsonNewObject(NULL);
 913                 osrfLogError(
 914                         OSRF_LOG_MARK,
 915                         "%s ERROR inserting %s object using query [%s]",
 916                         MODULENAME,
 917                         osrfHashGet(meta, "fieldmapper"),
 918                         query
 919                 );
 920                 osrfAppSessionStatus(
 921                         ctx->session,
 922                         OSRF_STATUS_INTERNALSERVERERROR,
 923                         "osrfMethodException",
 924                         ctx->request,
 925                         "INSERT error -- please see the error log for more details"
 926                 );
 927                 *err = -1;
 928         } else {
 929
 930                 int pos = atoi(osrfHashGet( osrfHashGet(fields, pkey), "array_position" ));
 931                 char* id = jsonObjectToSimpleString(jsonObjectGetIndex(target, pos));
 932                 if (!id) {
 933                         unsigned long long new_id = dbi_conn_sequence_last(writehandle, seq);
 934                         growing_buffer* _id = buffer_init(10);
 935                         buffer_fadd(_id, "%lld", new_id);
 936                         id = buffer_release(_id);
 937                 }
 938
 939                 // Find quietness specification, if present
 940                 char* quiet_str = NULL;
 941                 if ( options ) {
 942                         const jsonObject* quiet_obj = jsonObjectGetKeyConst( options, "quiet" );
 943                         if( quiet_obj )
 944                                 quiet_str = jsonObjectToSimpleString( quiet_obj );
 945                 }
 946
 947                 if( quiet_str && !strcmp( quiet_str, "true" )) {  // if quietness is specified
 948                         obj = jsonNewObject(id);
 949                 }
 950                 else {
 951
 952                         jsonObject* fake_params = jsonNewObjectType(JSON_ARRAY);
 953                         jsonObjectPush(fake_params, jsonNewObjectType(JSON_HASH));
 954
 955                         jsonObjectSetKey(
 956                                 jsonObjectGetIndex(fake_params, 0),
 957                                 osrfHashGet(meta, "primarykey"),
 958                                 jsonNewObject(id)
 959                         );
 960
 961                         jsonObject* list = doFieldmapperSearch( ctx,meta, fake_params, err);
 962
 963                         if(*err) {
 964                                 jsonObjectFree( fake_params );
 965                                 obj = jsonNULL;
 966                         } else {
 967                                 obj = jsonObjectClone( jsonObjectGetIndex(list, 0) );
 968                         }
 969
 970                         jsonObjectFree( list );
 971                         jsonObjectFree( fake_params );
 972                 }
 973
 974                 if(quiet_str) free(quiet_str);
 975                 free(id);
 976         }
 977
 978         free(query);
 979
 980         return obj;
 981
 982 }
 983
 984
 985 static jsonObject* doRetrieve(osrfMethodContext* ctx, int* err ) {
 986
 987         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
 988
 989         jsonObject* obj;
 990
 991         char* id = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
 992         jsonObject* order_hash = jsonObjectGetIndex(ctx->params, 1);
 993
 994         osrfLogDebug(
 995                 OSRF_LOG_MARK,
 996                 "%s retrieving %s object with id %s",
 997                 MODULENAME,
 998                 osrfHashGet(meta, "fieldmapper"),
 999                 id
1000         );
1001
1002         jsonObject* fake_params = jsonNewObjectType(JSON_ARRAY);
1003         jsonObjectPush(fake_params, jsonNewObjectType(JSON_HASH));
1004
1005         jsonObjectSetKey(
1006                 jsonObjectGetIndex(fake_params, 0),
1007                 osrfHashGet(meta, "primarykey"),
1008                 jsonParseString(id)
1009         );
1010
1011         free(id);
1012
1013         if (order_hash) jsonObjectPush(fake_params, jsonObjectClone(order_hash) );
1014
1015         jsonObject* list = doFieldmapperSearch( ctx,meta, fake_params, err);
1016
1017         if(*err) {
1018                 jsonObjectFree( fake_params );
1019                 return jsonNULL;
1020         }
1021
1022         obj = jsonObjectClone( jsonObjectGetIndex(list, 0) );
1023
1024         jsonObjectFree( list );
1025         jsonObjectFree( fake_params );
1026
1027         return obj;
1028 }
1029
1030 static char* jsonNumberToDBString ( osrfHash* field, const jsonObject* value ) {
1031         growing_buffer* val_buf = buffer_init(32);
1032
1033         if ( !strncmp(osrfHashGet(field, "datatype"), "INT", (size_t)3) ) {
1034                 if (value->type == JSON_NUMBER) buffer_fadd( val_buf, "%ld", (long)jsonObjectGetNumber(value) );
1035                 else {
1036                         char* val_str = jsonObjectToSimpleString(value);
1037                         buffer_fadd( val_buf, "%ld", atol(val_str) );
1038                         free(val_str);
1039                 }
1040
1041         } else if ( !strcmp(osrfHashGet(field, "datatype"), "NUMERIC") ) {
1042                 if (value->type == JSON_NUMBER) buffer_fadd( val_buf, "%f",  jsonObjectGetNumber(value) );
1043                 else {
1044                         char* val_str = jsonObjectToSimpleString(value);
1045                         buffer_fadd( val_buf, "%f", atof(val_str) );
1046                         free(val_str);
1047                 }
1048         }
1049
1050         return buffer_release(val_buf);
1051 }
1052
1053 static char* searchINPredicate (const char* class, osrfHash* field,
1054                 const jsonObject* node, const char* op) {
1055         growing_buffer* sql_buf = buffer_init(32);
1056
1057         buffer_fadd(
1058                 sql_buf,
1059                 "\"%s\".%s ",
1060                 class,
1061                 osrfHashGet(field, "name")
1062         );
1063
1064         if (!op) {
1065                 buffer_add(sql_buf, "IN (");
1066         } else if (!(strcasecmp(op,"not in"))) {
1067                 buffer_add(sql_buf, "NOT IN (");
1068         } else {
1069                 buffer_add(sql_buf, "IN (");
1070         }
1071
1072         int in_item_index = 0;
1073         int in_item_first = 1;
1074         jsonObject* in_item;
1075         while ( (in_item = jsonObjectGetIndex(node, in_item_index++)) ) {
1076
1077                 if (in_item_first)
1078                         in_item_first = 0;
1079                 else
1080                         buffer_add(sql_buf, ", ");
1081
1082                 if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1083                         char* val = jsonNumberToDBString( field, in_item );
1084                         buffer_fadd( sql_buf, "%s", val );
1085                         free(val);
1086
1087                 } else {
1088                         char* key_string = jsonObjectToSimpleString(in_item);
1089                         if ( dbi_conn_quote_string(dbhandle, &key_string) ) {
1090                                 buffer_fadd( sql_buf, "%s", key_string );
1091                                 free(key_string);
1092                         } else {
1093                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, key_string);
1094                                 free(key_string);
1095                                 buffer_free(sql_buf);
1096                                 return NULL;
1097                         }
1098                 }
1099         }
1100
1101         buffer_add(
1102                 sql_buf,
1103                 ")"
1104         );
1105
1106         return buffer_release(sql_buf);
1107 }
1108
1109 static char* searchValueTransform( const jsonObject* array ) {
1110         growing_buffer* sql_buf = buffer_init(32);
1111
1112         char* val = NULL;
1113         int func_item_index = 0;
1114         int func_item_first = 2;
1115         jsonObject* func_item;
1116         while ( (func_item = jsonObjectGetIndex(array, func_item_index++)) ) {
1117
1118                 val = jsonObjectToSimpleString(func_item);
1119
1120                 if (func_item_first == 2) {
1121                         buffer_fadd(sql_buf, "%s( ", val);
1122                         free(val);
1123                         func_item_first--;
1124                         continue;
1125                 }
1126
1127                 if (func_item_first)
1128                         func_item_first--;
1129                 else
1130                         buffer_add(sql_buf, ", ");
1131
1132                 if (func_item->type == JSON_NULL) {
1133                         buffer_add( sql_buf, "NULL" );
1134                 } else if ( dbi_conn_quote_string(dbhandle, &val) ) {
1135                         buffer_fadd( sql_buf, "%s", val );
1136                 } else {
1137                         osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, val);
1138                         free(val);
1139                         buffer_free(sql_buf);
1140                         return NULL;
1141                 }
1142
1143                 free(val);
1144         }
1145
1146         buffer_add(
1147                 sql_buf,
1148                 " )"
1149         );
1150
1151         return buffer_release(sql_buf);
1152 }
1153
1154 static char* searchFunctionPredicate (const char* class, osrfHash* field,
1155                 const jsonObject* node, const char* node_key) {
1156         growing_buffer* sql_buf = buffer_init(32);
1157
1158         char* val = searchValueTransform(node);
1159
1160         buffer_fadd(
1161                 sql_buf,
1162                 "\"%s\".%s %s %s",
1163                 class,
1164                 osrfHashGet(field, "name"),
1165                 node_key,
1166                 val
1167         );
1168
1169         free(val);
1170
1171         return buffer_release(sql_buf);
1172 }
1173
1174 static char* searchFieldTransform (const char* class, osrfHash* field, const jsonObject* node) {
1175         growing_buffer* sql_buf = buffer_init(32);
1176
1177         char* field_transform = jsonObjectToSimpleString( jsonObjectGetKeyConst( node, "transform" ) );
1178         char* transform_subcolumn = jsonObjectToSimpleString( jsonObjectGetKeyConst( node, "result_field" ) );
1179
1180         if (field_transform) {
1181                 buffer_fadd( sql_buf, "%s(\"%s\".%s", field_transform, class, osrfHashGet(field, "name"));
1182             const jsonObject* array = jsonObjectGetKeyConst( node, "params" );
1183
1184         if (array) {
1185                 int func_item_index = 0;
1186                 jsonObject* func_item;
1187                 while ( (func_item = jsonObjectGetIndex(array, func_item_index++)) ) {
1188
1189                         char* val = jsonObjectToSimpleString(func_item);
1190
1191                     if ( !val ) {
1192                             buffer_add( sql_buf, ",NULL" );
1193                     } else if ( dbi_conn_quote_string(dbhandle, &val) ) {
1194                             buffer_fadd( sql_buf, ",%s", val );
1195                         } else {
1196                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, val);
1197                             free(field_transform);
1198                                         free(val);
1199                                 buffer_free(sql_buf);
1200                                 return NULL;
1201                 }
1202                                 free(val);
1203                         }
1204
1205         }
1206
1207         buffer_add(
1208                 sql_buf,
1209                 " )"
1210         );
1211
1212         } else {
1213                 buffer_fadd( sql_buf, "\"%s\".%s", class, osrfHashGet(field, "name"));
1214         }
1215
1216     if (transform_subcolumn) {
1217         char * tmp = buffer_release(sql_buf);
1218         sql_buf = buffer_init(32);
1219         buffer_fadd(
1220             sql_buf,
1221             "(%s).\"%s\"",
1222             tmp,
1223             transform_subcolumn
1224         );
1225         free(tmp);
1226     }
1227
1228         if (field_transform) free(field_transform);
1229         if (transform_subcolumn) free(transform_subcolumn);
1230
1231         return buffer_release(sql_buf);
1232 }
1233
1234 static char* searchFieldTransformPredicate (const char* class, osrfHash* field, jsonObject* node, const char* node_key) {
1235         char* field_transform = searchFieldTransform( class, field, node );
1236         char* value = NULL;
1237
1238         if (!jsonObjectGetKeyConst( node, "value" )) {
1239                 value = searchWHERE( node, osrfHashGet( oilsIDL(), class ), AND_OP_JOIN, NULL );
1240         } else if (jsonObjectGetKeyConst( node, "value" )->type == JSON_ARRAY) {
1241                 value = searchValueTransform(jsonObjectGetKeyConst( node, "value" ));
1242         } else if (jsonObjectGetKeyConst( node, "value" )->type == JSON_HASH) {
1243                 value = searchWHERE( jsonObjectGetKeyConst( node, "value" ), osrfHashGet( oilsIDL(), class ), AND_OP_JOIN, NULL );
1244         } else if (jsonObjectGetKeyConst( node, "value" )->type != JSON_NULL) {
1245                 if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1246                         value = jsonNumberToDBString( field, jsonObjectGetKeyConst( node, "value" ) );
1247                 } else {
1248                         value = jsonObjectToSimpleString(jsonObjectGetKeyConst( node, "value" ));
1249                         if ( !dbi_conn_quote_string(dbhandle, &value) ) {
1250                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, value);
1251                                 free(value);
1252                                 free(field_transform);
1253                                 return NULL;
1254                         }
1255                 }
1256         }
1257
1258         growing_buffer* sql_buf = buffer_init(32);
1259
1260         buffer_fadd(
1261                 sql_buf,
1262                 "%s %s %s",
1263                 field_transform,
1264                 node_key,
1265                 value
1266         );
1267
1268         free(value);
1269         free(field_transform);
1270
1271         return buffer_release(sql_buf);
1272 }
1273
1274 static char* searchSimplePredicate (const char* orig_op, const char* class,
1275                 osrfHash* field, const jsonObject* node) {
1276
1277         char* val = NULL;
1278
1279         if (node->type != JSON_NULL) {
1280                 if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1281                         val = jsonNumberToDBString( field, node );
1282                 } else {
1283                         val = jsonObjectToSimpleString(node);
1284                 }
1285         }
1286
1287         char* pred = searchWriteSimplePredicate( class, field, osrfHashGet(field, "name"), orig_op, val );
1288
1289         if (val) free(val);
1290
1291         return pred;
1292 }
1293
1294 static char* searchWriteSimplePredicate ( const char* class, osrfHash* field,
1295         const char* left, const char* orig_op, const char* right ) {
1296
1297         char* val = NULL;
1298         char* op = NULL;
1299         if (right == NULL) {
1300                 val = strdup("NULL");
1301
1302                 if (strcmp( orig_op, "=" ))
1303                         op = strdup("IS NOT");
1304                 else
1305                         op = strdup("IS");
1306
1307         } else if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1308                 val = strdup(right);
1309                 op = strdup(orig_op);
1310
1311         } else {
1312                 val = strdup(right);
1313                 if ( !dbi_conn_quote_string(dbhandle, &val) ) {
1314                         osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, val);
1315                         free(val);
1316                         return NULL;
1317                 }
1318                 op = strdup(orig_op);
1319         }
1320
1321         growing_buffer* sql_buf = buffer_init(16);
1322         buffer_fadd( sql_buf, "\"%s\".%s %s %s", class, left, op, val );
1323         free(val);
1324         free(op);
1325
1326         return buffer_release(sql_buf);
1327 }
1328
1329 static char* searchBETWEENPredicate (const char* class, osrfHash* field, jsonObject* node) {
1330
1331         char* x_string;
1332         char* y_string;
1333
1334         if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1335                 x_string = jsonNumberToDBString(field, jsonObjectGetIndex(node,0));
1336                 y_string = jsonNumberToDBString(field, jsonObjectGetIndex(node,1));
1337
1338         } else {
1339                 x_string = jsonObjectToSimpleString(jsonObjectGetIndex(node,0));
1340                 y_string = jsonObjectToSimpleString(jsonObjectGetIndex(node,1));
1341                 if ( !(dbi_conn_quote_string(dbhandle, &x_string) && dbi_conn_quote_string(dbhandle, &y_string)) ) {
1342                         osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key strings [%s] and [%s]", MODULENAME, x_string, y_string);
1343                         free(x_string);
1344                         free(y_string);
1345                         return NULL;
1346                 }
1347         }
1348
1349         growing_buffer* sql_buf = buffer_init(32);
1350         buffer_fadd( sql_buf, "%s BETWEEN %s AND %s", osrfHashGet(field, "name"), x_string, y_string );
1351         free(x_string);
1352         free(y_string);
1353
1354         return buffer_release(sql_buf);
1355 }
1356
1357 static char* searchPredicate ( const char* class, osrfHash* field, jsonObject* node ) {
1358
1359         char* pred = NULL;
1360         if (node->type == JSON_ARRAY) { // equality IN search
1361                 pred = searchINPredicate( class, field, node, NULL );
1362         } else if (node->type == JSON_HASH) { // non-equality search
1363                 jsonObject* pred_node;
1364                 jsonIterator* pred_itr = jsonNewIterator( node );
1365                 while ( (pred_node = jsonIteratorNext( pred_itr )) ) {
1366                         if ( !(strcasecmp( pred_itr->key,"between" )) )
1367                                 pred = searchBETWEENPredicate( class, field, pred_node );
1368                         else if ( !(strcasecmp( pred_itr->key,"in" )) || !(strcasecmp( pred_itr->key,"not in" )) )
1369                                 pred = searchINPredicate( class, field, pred_node, pred_itr->key );
1370                         else if ( pred_node->type == JSON_ARRAY )
1371                                 pred = searchFunctionPredicate( class, field, pred_node, pred_itr->key );
1372                         else if ( pred_node->type == JSON_HASH )
1373                                 pred = searchFieldTransformPredicate( class, field, pred_node, pred_itr->key );
1374                         else
1375                                 pred = searchSimplePredicate( pred_itr->key, class, field, pred_node );
1376
1377                         break;
1378                 }
1379         jsonIteratorFree(pred_itr);
1380         } else if (node->type == JSON_NULL) { // IS NULL search
1381                 growing_buffer* _p = buffer_init(64);
1382                 buffer_fadd(
1383                         _p,
1384                         "\"%s\".%s IS NULL",
1385                         class,
1386                         osrfHashGet(field, "name")
1387                 );
1388                 pred = buffer_release(_p);
1389         } else { // equality search
1390                 pred = searchSimplePredicate( "=", class, field, node );
1391         }
1392
1393         return pred;
1394
1395 }
1396
1397
1398 /*
1399
1400 join : {
1401         acn : {
1402                 field : record,
1403                 fkey : id
1404                 type : left
1405                 filter_op : or
1406                 filter : { ... },
1407                 join : {
1408                         acp : {
1409                                 field : call_number,
1410                                 fkey : id,
1411                                 filter : { ... },
1412                         },
1413                 },
1414         },
1415         mrd : {
1416                 field : record,
1417                 type : inner
1418                 fkey : id,
1419                 filter : { ... },
1420         }
1421 }
1422
1423 */
1424
1425 static char* searchJOIN ( const jsonObject* join_hash, osrfHash* leftmeta ) {
1426
1427         const jsonObject* working_hash;
1428         jsonObject* freeable_hash = NULL;
1429
1430         if (join_hash->type == JSON_STRING) {
1431                 // create a wrapper around a copy of the original
1432                 char* _tmp = jsonObjectToSimpleString( join_hash );
1433                 freeable_hash = jsonNewObjectType(JSON_HASH);
1434                 jsonObjectSetKey(freeable_hash, _tmp, NULL);
1435                 free(_tmp);
1436                 working_hash = freeable_hash;
1437         }
1438         else
1439                 working_hash = join_hash;
1440
1441         growing_buffer* join_buf = buffer_init(128);
1442         char* leftclass = osrfHashGet(leftmeta, "classname");
1443
1444         jsonObject* snode = NULL;
1445         jsonIterator* search_itr = jsonNewIterator( working_hash );
1446         if(freeable_hash)
1447                 jsonObjectFree(freeable_hash);
1448
1449         while ( (snode = jsonIteratorNext( search_itr )) ) {
1450                 osrfHash* idlClass = osrfHashGet( oilsIDL(), search_itr->key );
1451
1452                 char* class = osrfHashGet(idlClass, "classname");
1453
1454                 char* fkey = jsonObjectToSimpleString( jsonObjectGetKeyConst( snode, "fkey" ) );
1455                 char* field = jsonObjectToSimpleString( jsonObjectGetKeyConst( snode, "field" ) );
1456
1457                 if (field && !fkey) {
1458                         fkey = (char*)oilsIDLFindPath("/%s/links/%s/key", class, field);
1459                         if (!fkey) {
1460                                 osrfLogError(
1461                                         OSRF_LOG_MARK,
1462                                         "%s: JOIN failed.  No link defined from %s.%s to %s",
1463                                         MODULENAME,
1464                                         class,
1465                                         field,
1466                                         leftclass
1467                                 );
1468                                 buffer_free(join_buf);
1469                                 free(field);
1470                                 jsonIteratorFree(search_itr);
1471                                 return NULL;
1472                         }
1473                         fkey = strdup( fkey );
1474
1475                 } else if (!field && fkey) {
1476                         field = (char*)oilsIDLFindPath("/%s/links/%s/key", leftclass, fkey );
1477                         if (!field) {
1478                                 osrfLogError(
1479                                         OSRF_LOG_MARK,
1480                                         "%s: JOIN failed.  No link defined from %s.%s to %s",
1481                                         MODULENAME,
1482                                         leftclass,
1483                                         fkey,
1484                                         class
1485                                 );
1486                                 buffer_free(join_buf);
1487                                 free(fkey);
1488                                 jsonIteratorFree(search_itr);
1489                                 return NULL;
1490                         }
1491                         field = strdup( field );
1492
1493                 } else if (!field && !fkey) {
1494                         osrfHash* _links = oilsIDLFindPath("/%s/links", leftclass);
1495
1496                         int i = 0;
1497                         osrfStringArray* keys = osrfHashKeys( _links );
1498                         while ( (fkey = osrfStringArrayGetString(keys, i++)) ) {
1499                                 fkey = strdup(osrfStringArrayGetString(keys, i++));
1500                                 if ( !strcmp( (char*)oilsIDLFindPath("/%s/links/%s/class", leftclass, fkey), class) ) {
1501                                         field = strdup( (char*)oilsIDLFindPath("/%s/links/%s/key", leftclass, fkey) );
1502                                         break;
1503                                 } else {
1504                                         free(fkey);
1505                                 }
1506                         }
1507                         osrfStringArrayFree(keys);
1508
1509                         if (!field && !fkey) {
1510                                 _links = oilsIDLFindPath("/%s/links", class);
1511
1512                                 i = 0;
1513                                 keys = osrfHashKeys( _links );
1514                                 while ( (field = osrfStringArrayGetString(keys, i++)) ) {
1515                                         field = strdup(osrfStringArrayGetString(keys, i++));
1516                                         if ( !strcmp( (char*)oilsIDLFindPath("/%s/links/%s/class", class, field), class) ) {
1517                                                 fkey = strdup( (char*)oilsIDLFindPath("/%s/links/%s/key", class, field) );
1518                                                 break;
1519                                         } else {
1520                                                 free(field);
1521                                         }
1522                                 }
1523                                 osrfStringArrayFree(keys);
1524                         }
1525
1526                         if (!field && !fkey) {
1527                                 osrfLogError(
1528                                         OSRF_LOG_MARK,
1529                                         "%s: JOIN failed.  No link defined between %s and %s",
1530                                         MODULENAME,
1531                                         leftclass,
1532                                         class
1533                                 );
1534                                 buffer_free(join_buf);
1535                                 jsonIteratorFree(search_itr);
1536                                 return NULL;
1537                         }
1538
1539                 }
1540
1541                 char* type = jsonObjectToSimpleString( jsonObjectGetKeyConst( snode, "type" ) );
1542                 if (type) {
1543                         if ( !strcasecmp(type,"left") ) {
1544                                 buffer_add(join_buf, " LEFT JOIN");
1545                         } else if ( !strcasecmp(type,"right") ) {
1546                                 buffer_add(join_buf, " RIGHT JOIN");
1547                         } else if ( !strcasecmp(type,"full") ) {
1548                                 buffer_add(join_buf, " FULL JOIN");
1549                         } else {
1550                                 buffer_add(join_buf, " INNER JOIN");
1551                         }
1552                 } else {
1553                         buffer_add(join_buf, " INNER JOIN");
1554                 }
1555                 free(type);
1556
1557                 char* table = getSourceDefinition(idlClass);
1558                 buffer_fadd(join_buf, " %s AS \"%s\" ON ( \"%s\".%s = \"%s\".%s", table, class, class, field, leftclass, fkey);
1559                 free(table);
1560
1561                 const jsonObject* filter = jsonObjectGetKeyConst( snode, "filter" );
1562                 if (filter) {
1563                         char* filter_op = jsonObjectToSimpleString( jsonObjectGetKeyConst( snode, "filter_op" ) );
1564                         if (filter_op) {
1565                                 if (!strcasecmp("or",filter_op)) {
1566                                         buffer_add( join_buf, " OR " );
1567                                 } else {
1568                                         buffer_add( join_buf, " AND " );
1569                                 }
1570                         } else {
1571                                 buffer_add( join_buf, " AND " );
1572                         }
1573
1574                         char* jpred = searchWHERE( filter, idlClass, AND_OP_JOIN, NULL );
1575                         buffer_fadd( join_buf, " %s", jpred );
1576                         free(jpred);
1577                         free(filter_op);
1578                 }
1579
1580                 buffer_add(join_buf, " ) ");
1581
1582                 const jsonObject* join_filter = jsonObjectGetKeyConst( snode, "join" );
1583                 if (join_filter) {
1584                         char* jpred = searchJOIN( join_filter, idlClass );
1585                         buffer_fadd( join_buf, " %s", jpred );
1586                         free(jpred);
1587                 }
1588
1589                 free(fkey);
1590                 free(field);
1591         }
1592
1593     jsonIteratorFree(search_itr);
1594
1595         return buffer_release(join_buf);
1596 }
1597
1598 /*
1599
1600 { +class : { -or|-and : { field : { op : value }, ... } ... }, ... }
1601 { +class : { -or|-and : [ { field : { op : value }, ... }, ...] ... }, ... }
1602 [ { +class : { -or|-and : [ { field : { op : value }, ... }, ...] ... }, ... }, ... ]
1603
1604 */
1605
1606 static char* searchWHERE ( const jsonObject* search_hash, osrfHash* meta, int opjoin_type, osrfMethodContext* ctx ) {
1607
1608         growing_buffer* sql_buf = buffer_init(128);
1609
1610         jsonObject* node = NULL;
1611
1612     int first = 1;
1613     if ( search_hash->type == JSON_ARRAY ) {
1614         jsonIterator* search_itr = jsonNewIterator( search_hash );
1615         while ( (node = jsonIteratorNext( search_itr )) ) {
1616             if (first) {
1617                 first = 0;
1618             } else {
1619                 if (opjoin_type == OR_OP_JOIN) buffer_add(sql_buf, " OR ");
1620                 else buffer_add(sql_buf, " AND ");
1621             }
1622
1623             char* subpred = searchWHERE( node, meta, opjoin_type, ctx );
1624             buffer_fadd(sql_buf, "( %s )", subpred);
1625             free(subpred);
1626         }
1627         jsonIteratorFree(search_itr);
1628
1629     } else if ( search_hash->type == JSON_HASH ) {
1630         jsonIterator* search_itr = jsonNewIterator( search_hash );
1631         while ( (node = jsonIteratorNext( search_itr )) ) {
1632
1633             if (first) {
1634                 first = 0;
1635             } else {
1636                 if (opjoin_type == OR_OP_JOIN) buffer_add(sql_buf, " OR ");
1637                 else buffer_add(sql_buf, " AND ");
1638             }
1639
1640             if ( !strncmp("+",search_itr->key,1) ) {
1641                 if ( node->type == JSON_STRING ) {
1642                     char* subpred = jsonObjectToSimpleString( node );
1643                     buffer_fadd(sql_buf, " \"%s\".%s ", search_itr->key + 1, subpred);
1644                     free(subpred);
1645                 } else {
1646                     char* subpred = searchWHERE( node, osrfHashGet( oilsIDL(), search_itr->key + 1 ), AND_OP_JOIN, ctx );
1647                     buffer_fadd(sql_buf, "( %s )", subpred);
1648                     free(subpred);
1649                 }
1650             } else if ( !strcasecmp("-or",search_itr->key) ) {
1651                 char* subpred = searchWHERE( node, meta, OR_OP_JOIN, ctx );
1652                 buffer_fadd(sql_buf, "( %s )", subpred);
1653                 free(subpred);
1654             } else if ( !strcasecmp("-and",search_itr->key) ) {
1655                 char* subpred = searchWHERE( node, meta, AND_OP_JOIN, ctx );
1656                 buffer_fadd(sql_buf, "( %s )", subpred);
1657                 free(subpred);
1658             } else if ( !strcasecmp("-exists",search_itr->key) ) {
1659                 char* subpred = SELECT(
1660                     ctx,
1661                     jsonObjectGetKey( node, "select" ),
1662                     jsonObjectGetKey( node, "from" ),
1663                     jsonObjectGetKey( node, "where" ),
1664                     jsonObjectGetKey( node, "having" ),
1665                     jsonObjectGetKey( node, "order_by" ),
1666                     jsonObjectGetKey( node, "limit" ),
1667                     jsonObjectGetKey( node, "offset" ),
1668                     SUBSELECT
1669                 );
1670
1671                 buffer_fadd(sql_buf, "EXISTS ( %s )", subpred);
1672                 free(subpred);
1673             } else if ( !strcasecmp("-not-exists",search_itr->key) ) {
1674                 char* subpred = SELECT(
1675                     ctx,
1676                     jsonObjectGetKey( node, "select" ),
1677                     jsonObjectGetKey( node, "from" ),
1678                     jsonObjectGetKey( node, "where" ),
1679                     jsonObjectGetKey( node, "having" ),
1680                     jsonObjectGetKey( node, "order_by" ),
1681                     jsonObjectGetKey( node, "limit" ),
1682                     jsonObjectGetKey( node, "offset" ),
1683                     SUBSELECT
1684                 );
1685
1686                 buffer_fadd(sql_buf, "NOT EXISTS ( %s )", subpred);
1687                 free(subpred);
1688             } else {
1689
1690                 char* class = osrfHashGet(meta, "classname");
1691                 osrfHash* fields = osrfHashGet(meta, "fields");
1692                 osrfHash* field = osrfHashGet( fields, search_itr->key );
1693
1694
1695                 if (!field) {
1696                     char* table = getSourceDefinition(meta);
1697                     osrfLogError(
1698                         OSRF_LOG_MARK,
1699                         "%s: Attempt to reference non-existant column %s on %s (%s)",
1700                         MODULENAME,
1701                         search_itr->key,
1702                         table,
1703                         class
1704                     );
1705                     buffer_free(sql_buf);
1706                     free(table);
1707                                         jsonIteratorFree(search_itr);
1708                                         return NULL;
1709                 }
1710
1711                 char* subpred = searchPredicate( class, field, node );
1712                 buffer_add( sql_buf, subpred );
1713                 free(subpred);
1714             }
1715         }
1716             jsonIteratorFree(search_itr);
1717
1718     } else {
1719         // ERROR ... only hash and array allowed at this level
1720         char* predicate_string = jsonObjectToJSON( search_hash );
1721         osrfLogError(
1722             OSRF_LOG_MARK,
1723             "%s: Invalid predicate structure: %s",
1724             MODULENAME,
1725             predicate_string
1726         );
1727         buffer_free(sql_buf);
1728         free(predicate_string);
1729         return NULL;
1730     }
1731
1732
1733         return buffer_release(sql_buf);
1734 }
1735
1736 static char* SELECT (
1737                 /* method context */ osrfMethodContext* ctx,
1738
1739                 /* SELECT   */ jsonObject* selhash,
1740                 /* FROM     */ jsonObject* join_hash,
1741                 /* WHERE    */ jsonObject* search_hash,
1742                 /* HAVING   */ jsonObject* having_hash,
1743                 /* ORDER BY */ jsonObject* order_hash,
1744                 /* LIMIT    */ jsonObject* limit,
1745                 /* OFFSET   */ jsonObject* offset,
1746                 /* flags    */ int flags
1747 ) {
1748         const char* locale = osrf_message_get_last_locale();
1749
1750         // in case we don't get a select list
1751         jsonObject* defaultselhash = NULL;
1752
1753         // general tmp objects
1754         const jsonObject* tmp_const;
1755         jsonObject* _tmp = NULL;
1756         jsonObject* selclass = NULL;
1757         jsonObject* selfield = NULL;
1758         jsonObject* snode = NULL;
1759         jsonObject* onode = NULL;
1760         jsonObject* found = NULL;
1761
1762         char* string = NULL;
1763         int from_function = 0;
1764         int first = 1;
1765         int gfirst = 1;
1766         //int hfirst = 1;
1767
1768         // the core search class
1769         char* core_class = NULL;
1770
1771         // metadata about the core search class
1772         osrfHash* core_meta = NULL;
1773         osrfHash* core_fields = NULL;
1774         osrfHash* idlClass = NULL;
1775
1776         // punt if there's no core class
1777         if (!join_hash || ( join_hash->type == JSON_HASH && !join_hash->size ))
1778                 return NULL;
1779
1780         // get the core class -- the only key of the top level FROM clause, or a string
1781         if (join_hash->type == JSON_HASH) {
1782                 jsonIterator* tmp_itr = jsonNewIterator( join_hash );
1783                 snode = jsonIteratorNext( tmp_itr );
1784
1785                 core_class = strdup( tmp_itr->key );
1786                 join_hash = snode;
1787
1788                 jsonIteratorFree( tmp_itr );
1789                 snode = NULL;
1790
1791         } else if (join_hash->type == JSON_ARRAY) {
1792         from_function = 1;
1793         selhash = NULL;
1794
1795         } else if (join_hash->type == JSON_STRING) {
1796                 core_class = jsonObjectToSimpleString( join_hash );
1797                 join_hash = NULL;
1798         }
1799
1800         // punt if we don't know about the core class (and it's not a function)
1801         if (!from_function && !(core_meta = osrfHashGet( oilsIDL(), core_class ))) {
1802                 free(core_class);
1803                 return NULL;
1804         }
1805
1806         // if the select list is empty, or the core class field list is '*',
1807         // build the default select list ...
1808         if (!selhash) {
1809                 selhash = defaultselhash = jsonNewObjectType(JSON_HASH);
1810                 jsonObjectSetKey( selhash, core_class, jsonNewObjectType(JSON_ARRAY) );
1811         } else if ( (tmp_const = jsonObjectGetKeyConst( selhash, core_class )) && tmp_const->type == JSON_STRING ) {
1812                 char* _x = jsonObjectToSimpleString( tmp_const );
1813                 if (!strncmp( "*", _x, 1 )) {
1814                         jsonObjectRemoveKey( selhash, core_class );
1815                         jsonObjectSetKey( selhash, core_class, jsonNewObjectType(JSON_ARRAY) );
1816                 }
1817                 free(_x);
1818         }
1819
1820         // the query buffer
1821         growing_buffer* sql_buf = buffer_init(128);
1822
1823         // temp buffer for the SELECT list
1824         growing_buffer* select_buf = buffer_init(128);
1825         growing_buffer* order_buf = buffer_init(128);
1826         growing_buffer* group_buf = buffer_init(128);
1827         growing_buffer* having_buf = buffer_init(128);
1828
1829         if (!from_function)
1830         core_fields = osrfHashGet(core_meta, "fields");
1831
1832         // ... and if we /are/ building the default list, do that
1833         if ( (_tmp = jsonObjectGetKey(selhash,core_class)) && !_tmp->size ) {
1834
1835                 int i = 0;
1836                 char* field;
1837
1838         if (!from_function) {
1839                 osrfStringArray* keys = osrfHashKeys( core_fields );
1840                 while ( (field = osrfStringArrayGetString(keys, i++)) ) {
1841                         if ( strncasecmp( "true", osrfHashGet( osrfHashGet( core_fields, field ), "virtual" ), 4 ) )
1842                                 jsonObjectPush( _tmp, jsonNewObject( field ) );
1843                 }
1844                 osrfStringArrayFree(keys);
1845         }
1846         }
1847
1848         // Now we build the actual select list
1849         if (!from_function) {
1850             int sel_pos = 1;
1851             jsonObject* is_agg = jsonObjectFindPath(selhash, "//aggregate");
1852             first = 1;
1853             gfirst = 1;
1854             jsonIterator* selclass_itr = jsonNewIterator( selhash );
1855             while ( (selclass = jsonIteratorNext( selclass_itr )) ) {
1856
1857                     // round trip through the idl, just to be safe
1858                     idlClass = osrfHashGet( oilsIDL(), selclass_itr->key );
1859                     if (!idlClass) continue;
1860                     char* cname = osrfHashGet(idlClass, "classname");
1861
1862                     // make sure the target relation is in the join tree
1863                     if (strcmp(core_class,cname)) {
1864                             if (!join_hash) continue;
1865
1866                             if (join_hash->type == JSON_STRING) {
1867                                     string = jsonObjectToSimpleString(join_hash);
1868                                     found = strcmp(string,cname) ? NULL : jsonParseString("{\"1\":\"1\"}");
1869                                     free(string);
1870                             } else {
1871                                     found = jsonObjectFindPath(join_hash, "//%s", cname);
1872                             }
1873
1874                             if (!found->size) {
1875                                     jsonObjectFree(found);
1876                                     continue;
1877                             }
1878
1879                             jsonObjectFree(found);
1880                     }
1881
1882                     // stitch together the column list ...
1883                     jsonIterator* select_itr = jsonNewIterator( selclass );
1884                     while ( (selfield = jsonIteratorNext( select_itr )) ) {
1885
1886                             char* __column = NULL;
1887                             char* __alias = NULL;
1888
1889                             // ... if it's a sstring, just toss it on the pile
1890                             if (selfield->type == JSON_STRING) {
1891
1892                                     // again, just to be safe
1893                                     char* _requested_col = jsonObjectToSimpleString(selfield);
1894                                     osrfHash* field = osrfHashGet( osrfHashGet( idlClass, "fields" ), _requested_col );
1895                                     free(_requested_col);
1896
1897                                     if (!field) continue;
1898                                     __column = strdup(osrfHashGet(field, "name"));
1899
1900                                     if (first) {
1901                                             first = 0;
1902                                     } else {
1903                                             buffer_add(select_buf, ",");
1904                                     }
1905
1906                     if (locale) {
1907                             char* i18n = osrfHashGet(field, "i18n");
1908                                     if (flags & DISABLE_I18N)
1909                             i18n = NULL;
1910
1911                             if ( i18n && !strncasecmp("true", i18n, 4)) {
1912                                 char* pkey = osrfHashGet(idlClass, "primarykey");
1913                                 char* tname = osrfHashGet(idlClass, "tablename");
1914
1915                             buffer_fadd(select_buf, " oils_i18n_xlate('%s', '%s', '%s', '%s', \"%s\".%s::TEXT, '%s') AS \"%s\"", tname, cname, __column, pkey, cname, pkey, locale, __column);
1916                         } else {
1917                                             buffer_fadd(select_buf, " \"%s\".%s AS \"%s\"", cname, __column, __column);
1918                         }
1919                     } else {
1920                                         buffer_fadd(select_buf, " \"%s\".%s AS \"%s\"", cname, __column, __column);
1921                     }
1922
1923                             // ... but it could be an object, in which case we check for a Field Transform
1924                             } else {
1925
1926                                     __column = jsonObjectToSimpleString( jsonObjectGetKeyConst( selfield, "column" ) );
1927
1928                                     // again, just to be safe
1929                                     osrfHash* field = osrfHashGet( osrfHashGet( idlClass, "fields" ), __column );
1930                                     if (!field) continue;
1931                                     const char* fname = osrfHashGet(field, "name");
1932
1933                                     if (first) {
1934                                             first = 0;
1935                                     } else {
1936                                             buffer_add(select_buf, ",");
1937                                     }
1938
1939                                     if ((tmp_const = jsonObjectGetKeyConst( selfield, "alias" ))) {
1940                                             __alias = jsonObjectToSimpleString( tmp_const );
1941                                     } else {
1942                                             __alias = strdup(__column);
1943                                     }
1944
1945                                     if (jsonObjectGetKeyConst( selfield, "transform" )) {
1946                                             free(__column);
1947                                             __column = searchFieldTransform(cname, field, selfield);
1948                                             buffer_fadd(select_buf, " %s AS \"%s\"", __column, __alias);
1949                                     } else {
1950                         if (locale) {
1951                                     char* i18n = osrfHashGet(field, "i18n");
1952                                         if (flags & DISABLE_I18N)
1953                                 i18n = NULL;
1954
1955                                     if ( i18n && !strncasecmp("true", i18n, 4)) {
1956                                     char* pkey = osrfHashGet(idlClass, "primarykey");
1957                                     char* tname = osrfHashGet(idlClass, "tablename");
1958
1959                                 buffer_fadd(select_buf, " oils_i18n_xlate('%s', '%s', '%s', '%s', \"%s\".%s::TEXT, '%s') AS \"%s\"", tname, cname, fname, pkey, cname, pkey, locale, __alias);
1960                             } else {
1961                                                     buffer_fadd(select_buf, " \"%s\".%s AS \"%s\"", cname, fname, __alias);
1962                             }
1963                         } else {
1964                                                 buffer_fadd(select_buf, " \"%s\".%s AS \"%s\"", cname, fname, __alias);
1965                         }
1966                                     }
1967                             }
1968
1969                             if (is_agg->size || (flags & SELECT_DISTINCT)) {
1970
1971                                     if ( !(
1972                             jsonBoolIsTrue( jsonObjectGetKey( selfield, "aggregate" ) ) ||
1973                                 ((int)jsonObjectGetNumber(jsonObjectGetKey( selfield, "aggregate" ))) == 1 // support 1/0 for perl's sake
1974                          )
1975                     ) {
1976                                             if (gfirst) {
1977                                                     gfirst = 0;
1978                                             } else {
1979                                                     buffer_add(group_buf, ",");
1980                                             }
1981
1982                                             buffer_fadd(group_buf, " %d", sel_pos);
1983                                     /*
1984                                     } else if (is_agg = jsonObjectGetKey( selfield, "having" )) {
1985                                             if (gfirst) {
1986                                                     gfirst = 0;
1987                                             } else {
1988                                                     buffer_add(group_buf, ",");
1989                                             }
1990
1991                                             __column = searchFieldTransform(cname, field, selfield);
1992                                             buffer_fadd(group_buf, " %s", __column);
1993                                             __column = searchFieldTransform(cname, field, selfield);
1994                                     */
1995                                     }
1996                             }
1997
1998                             if (__column) free(__column);
1999                             if (__alias) free(__alias);
2000
2001                             sel_pos++;
2002                     }
2003
2004             // jsonIteratorFree(select_itr);
2005             }
2006
2007         // jsonIteratorFree(selclass_itr);
2008
2009             if (is_agg) jsonObjectFree(is_agg);
2010     } else {
2011         buffer_add(select_buf, "*");
2012     }
2013
2014
2015         char* col_list = buffer_release(select_buf);
2016         char* table = NULL;
2017     if (!from_function) table = getSourceDefinition(core_meta);
2018     else table = searchValueTransform(join_hash);
2019
2020         // Put it all together
2021         buffer_fadd(sql_buf, "SELECT %s FROM %s AS \"%s\" ", col_list, table, core_class );
2022         free(col_list);
2023         free(table);
2024
2025     if (!from_function) {
2026             // Now, walk the join tree and add that clause
2027             if ( join_hash ) {
2028                     char* join_clause = searchJOIN( join_hash, core_meta );
2029                     buffer_add(sql_buf, join_clause);
2030                     free(join_clause);
2031             }
2032
2033             if ( search_hash ) {
2034                     buffer_add(sql_buf, " WHERE ");
2035
2036                     // and it's on the the WHERE clause
2037                     char* pred = searchWHERE( search_hash, core_meta, AND_OP_JOIN, ctx );
2038
2039                     if (!pred) {
2040                             if (ctx) {
2041                                 osrfAppSessionStatus(
2042                                         ctx->session,
2043                                         OSRF_STATUS_INTERNALSERVERERROR,
2044                                         "osrfMethodException",
2045                                         ctx->request,
2046                                         "Severe query error in WHERE predicate -- see error log for more details"
2047                                 );
2048                             }
2049                             free(core_class);
2050                             buffer_free(having_buf);
2051                             buffer_free(group_buf);
2052                             buffer_free(order_buf);
2053                             buffer_free(sql_buf);
2054                             if (defaultselhash) jsonObjectFree(defaultselhash);
2055                             return NULL;
2056                     } else {
2057                             buffer_add(sql_buf, pred);
2058                             free(pred);
2059                     }
2060         }
2061
2062             if ( having_hash ) {
2063                     buffer_add(sql_buf, " HAVING ");
2064
2065                     // and it's on the the WHERE clause
2066                     char* pred = searchWHERE( having_hash, core_meta, AND_OP_JOIN, ctx );
2067
2068                     if (!pred) {
2069                             if (ctx) {
2070                                 osrfAppSessionStatus(
2071                                         ctx->session,
2072                                         OSRF_STATUS_INTERNALSERVERERROR,
2073                                         "osrfMethodException",
2074                                         ctx->request,
2075                                         "Severe query error in HAVING predicate -- see error log for more details"
2076                                 );
2077                             }
2078                             free(core_class);
2079                             buffer_free(having_buf);
2080                             buffer_free(group_buf);
2081                             buffer_free(order_buf);
2082                             buffer_free(sql_buf);
2083                             if (defaultselhash) jsonObjectFree(defaultselhash);
2084                             return NULL;
2085                     } else {
2086                             buffer_add(sql_buf, pred);
2087                             free(pred);
2088                     }
2089             }
2090
2091             first = 1;
2092             jsonIterator* class_itr = jsonNewIterator( order_hash );
2093             while ( (snode = jsonIteratorNext( class_itr )) ) {
2094
2095                     if (!jsonObjectGetKeyConst(selhash,class_itr->key))
2096                             continue;
2097
2098                     if ( snode->type == JSON_HASH ) {
2099
2100                         jsonIterator* order_itr = jsonNewIterator( snode );
2101                             while ( (onode = jsonIteratorNext( order_itr )) ) {
2102
2103                                     if (!oilsIDLFindPath( "/%s/fields/%s", class_itr->key, order_itr->key ))
2104                                             continue;
2105
2106                                     char* direction = NULL;
2107                                     if ( onode->type == JSON_HASH ) {
2108                                             if ( jsonObjectGetKeyConst( onode, "transform" ) ) {
2109                                                     string = searchFieldTransform(
2110                                                             class_itr->key,
2111                                                             oilsIDLFindPath( "/%s/fields/%s", class_itr->key, order_itr->key ),
2112                                                             onode
2113                                                     );
2114                                             } else {
2115                                                     growing_buffer* field_buf = buffer_init(16);
2116                                                     buffer_fadd(field_buf, "\"%s\".%s", class_itr->key, order_itr->key);
2117                                                     string = buffer_release(field_buf);
2118                                             }
2119
2120                                             if ( (tmp_const = jsonObjectGetKeyConst( onode, "direction" )) ) {
2121                                                     direction = jsonObjectToSimpleString(tmp_const);
2122                                                     if (!strncasecmp(direction, "d", 1)) {
2123                                                             free(direction);
2124                                                             direction = " DESC";
2125                                                     } else {
2126                                                             free(direction);
2127                                                             direction = " ASC";
2128                                                     }
2129                                             }
2130
2131                                     } else {
2132                                             string = strdup(order_itr->key);
2133                                             direction = jsonObjectToSimpleString(onode);
2134                                             if (!strncasecmp(direction, "d", 1)) {
2135                                                     free(direction);
2136                                                     direction = " DESC";
2137                                             } else {
2138                                                     free(direction);
2139                                                     direction = " ASC";
2140                                             }
2141                                     }
2142
2143                                     if (first) {
2144                                             first = 0;
2145                                     } else {
2146                                             buffer_add(order_buf, ", ");
2147                                     }
2148
2149                                     buffer_add(order_buf, string);
2150                                     free(string);
2151
2152                                     if (direction) {
2153                                             buffer_add(order_buf, direction);
2154                                     }
2155
2156                             }
2157                 // jsonIteratorFree(order_itr);
2158
2159                     } else if ( snode->type == JSON_ARRAY ) {
2160
2161                         jsonIterator* order_itr = jsonNewIterator( snode );
2162                             while ( (onode = jsonIteratorNext( order_itr )) ) {
2163
2164                                     char* _f = jsonObjectToSimpleString( onode );
2165
2166                                     if (!oilsIDLFindPath( "/%s/fields/%s", class_itr->key, _f))
2167                                             continue;
2168
2169                                     if (first) {
2170                                             first = 0;
2171                                     } else {
2172                                             buffer_add(order_buf, ", ");
2173                                     }
2174
2175                                     buffer_add(order_buf, _f);
2176                                     free(_f);
2177
2178                             }
2179                 // jsonIteratorFree(order_itr);
2180
2181
2182                     // IT'S THE OOOOOOOOOOOLD STYLE!
2183                     } else {
2184                             osrfLogError(OSRF_LOG_MARK, "%s: Possible SQL injection attempt; direct order by is not allowed", MODULENAME);
2185                             if (ctx) {
2186                                 osrfAppSessionStatus(
2187                                         ctx->session,
2188                                         OSRF_STATUS_INTERNALSERVERERROR,
2189                                         "osrfMethodException",
2190                                         ctx->request,
2191                                         "Severe query error -- see error log for more details"
2192                                 );
2193                             }
2194
2195                             free(core_class);
2196                             buffer_free(having_buf);
2197                             buffer_free(group_buf);
2198                             buffer_free(order_buf);
2199                             buffer_free(sql_buf);
2200                             if (defaultselhash) jsonObjectFree(defaultselhash);
2201                             jsonIteratorFree(class_itr);
2202                             return NULL;
2203                     }
2204
2205             }
2206     }
2207
2208     // jsonIteratorFree(class_itr);
2209
2210         string = buffer_release(group_buf);
2211
2212         if (strlen(string)) {
2213                 buffer_fadd(
2214                         sql_buf,
2215                         " GROUP BY %s",
2216                         string
2217                 );
2218         }
2219
2220         free(string);
2221
2222         string = buffer_release(having_buf);
2223
2224         if (strlen(string)) {
2225                 buffer_fadd(
2226                         sql_buf,
2227                         " HAVING %s",
2228                         string
2229                 );
2230         }
2231
2232         free(string);
2233
2234         string = buffer_release(order_buf);
2235
2236         if (strlen(string)) {
2237                 buffer_fadd(
2238                         sql_buf,
2239                         " ORDER BY %s",
2240                         string
2241                 );
2242         }
2243
2244         free(string);
2245
2246         if ( limit ){
2247                 string = jsonObjectToSimpleString(limit);
2248                 buffer_fadd( sql_buf, " LIMIT %d", atoi(string) );
2249                 free(string);
2250         }
2251
2252         if (offset) {
2253                 string = jsonObjectToSimpleString(offset);
2254                 buffer_fadd( sql_buf, " OFFSET %d", atoi(string) );
2255                 free(string);
2256         }
2257
2258         if (!(flags & SUBSELECT)) buffer_add(sql_buf, ";");
2259
2260         free(core_class);
2261         if (defaultselhash) jsonObjectFree(defaultselhash);
2262
2263         return buffer_release(sql_buf);
2264
2265 }
2266
2267 static char* buildSELECT ( jsonObject* search_hash, jsonObject* order_hash, osrfHash* meta, osrfMethodContext* ctx ) {
2268
2269         const char* locale = osrf_message_get_last_locale();
2270
2271         osrfHash* fields = osrfHashGet(meta, "fields");
2272         char* core_class = osrfHashGet(meta, "classname");
2273
2274         const jsonObject* join_hash = jsonObjectGetKeyConst( order_hash, "join" );
2275
2276         jsonObject* node = NULL;
2277         jsonObject* snode = NULL;
2278         jsonObject* onode = NULL;
2279         const jsonObject* _tmp = NULL;
2280         jsonObject* selhash = NULL;
2281         jsonObject* defaultselhash = NULL;
2282
2283         growing_buffer* sql_buf = buffer_init(128);
2284         growing_buffer* select_buf = buffer_init(128);
2285
2286         if ( !(selhash = jsonObjectGetKey( order_hash, "select" )) ) {
2287                 defaultselhash = jsonNewObjectType(JSON_HASH);
2288                 selhash = defaultselhash;
2289         }
2290
2291         if ( !jsonObjectGetKeyConst(selhash,core_class) ) {
2292                 jsonObjectSetKey( selhash, core_class, jsonNewObjectType(JSON_ARRAY) );
2293                 jsonObject* flist = jsonObjectGetKey( selhash, core_class );
2294
2295                 int i = 0;
2296                 char* field;
2297
2298                 osrfStringArray* keys = osrfHashKeys( fields );
2299                 while ( (field = osrfStringArrayGetString(keys, i++)) ) {
2300                         if ( strcasecmp( "true", osrfHashGet( osrfHashGet( fields, field ), "virtual" ) ) )
2301                                 jsonObjectPush( flist, jsonNewObject( field ) );
2302                 }
2303                 osrfStringArrayFree(keys);
2304         }
2305
2306         int first = 1;
2307         jsonIterator* class_itr = jsonNewIterator( selhash );
2308         while ( (snode = jsonIteratorNext( class_itr )) ) {
2309
2310                 osrfHash* idlClass = osrfHashGet( oilsIDL(), class_itr->key );
2311                 if (!idlClass) continue;
2312                 char* cname = osrfHashGet(idlClass, "classname");
2313
2314                 if (strcmp(core_class,class_itr->key)) {
2315                         if (!join_hash) continue;
2316
2317                         jsonObject* found =  jsonObjectFindPath(join_hash, "//%s", class_itr->key);
2318                         if (!found->size) {
2319                                 jsonObjectFree(found);
2320                                 continue;
2321                         }
2322
2323                         jsonObjectFree(found);
2324                 }
2325
2326                 jsonIterator* select_itr = jsonNewIterator( snode );
2327                 while ( (node = jsonIteratorNext( select_itr )) ) {
2328                         char* item_str = jsonObjectToSimpleString(node);
2329                         osrfHash* field = osrfHashGet( osrfHashGet( idlClass, "fields" ), item_str );
2330                         free(item_str);
2331                         char* fname = osrfHashGet(field, "name");
2332
2333                         if (!field) continue;
2334
2335                         if (first) {
2336                                 first = 0;
2337                         } else {
2338                                 buffer_add(select_buf, ",");
2339                         }
2340
2341             if (locale) {
2342                         char* i18n = osrfHashGet(field, "i18n");
2343                             if ( !(
2344                         jsonBoolIsTrue( jsonObjectGetKey( order_hash, "no_i18n" ) ) ||
2345                         ((int)jsonObjectGetNumber(jsonObjectGetKey( order_hash, "no_i18n" ))) == 1 // support 1/0 for perl's sake
2346                      )
2347                 ) i18n = NULL;
2348
2349                         if ( i18n && !strncasecmp("true", i18n, 4)) {
2350                         char* pkey = osrfHashGet(idlClass, "primarykey");
2351                         char* tname = osrfHashGet(idlClass, "tablename");
2352
2353                     buffer_fadd(select_buf, " oils_i18n_xlate('%s', '%s', '%s', '%s', \"%s\".%s::TEXT, '%s') AS \"%s\"", tname, cname, fname, pkey, cname, pkey, locale, fname);
2354                 } else {
2355                                 buffer_fadd(select_buf, " \"%s\".%s", cname, fname);
2356                 }
2357             } else {
2358                             buffer_fadd(select_buf, " \"%s\".%s", cname, fname);
2359             }
2360                 }
2361
2362         jsonIteratorFree(select_itr);
2363         }
2364
2365     jsonIteratorFree(class_itr);
2366
2367         char* col_list = buffer_release(select_buf);
2368         char* table = getSourceDefinition(meta);
2369
2370         buffer_fadd(sql_buf, "SELECT %s FROM %s AS \"%s\"", col_list, table, core_class );
2371         free(col_list);
2372         free(table);
2373
2374         if ( join_hash ) {
2375                 char* join_clause = searchJOIN( join_hash, meta );
2376                 buffer_fadd(sql_buf, " %s", join_clause);
2377                 free(join_clause);
2378         }
2379
2380         char* tmpsql = buffer_data(sql_buf);
2381         osrfLogDebug(OSRF_LOG_MARK, "%s pre-predicate SQL =  %s", MODULENAME, tmpsql);
2382         free(tmpsql);
2383
2384         buffer_add(sql_buf, " WHERE ");
2385
2386         char* pred = searchWHERE( search_hash, meta, AND_OP_JOIN, ctx );
2387         if (!pred) {
2388                 osrfAppSessionStatus(
2389                         ctx->session,
2390                         OSRF_STATUS_INTERNALSERVERERROR,
2391                                 "osrfMethodException",
2392                                 ctx->request,
2393                                 "Severe query error -- see error log for more details"
2394                         );
2395                 buffer_free(sql_buf);
2396                 if(defaultselhash) jsonObjectFree(defaultselhash);
2397                 return NULL;
2398         } else {
2399                 buffer_add(sql_buf, pred);
2400                 free(pred);
2401         }
2402
2403         if (order_hash) {
2404                 char* string = NULL;
2405                 if ( (_tmp = jsonObjectGetKeyConst( order_hash, "order_by" )) ){
2406
2407                         growing_buffer* order_buf = buffer_init(128);
2408
2409                         first = 1;
2410                         jsonIterator* class_itr = jsonNewIterator( _tmp );
2411                         while ( (snode = jsonIteratorNext( class_itr )) ) {
2412
2413                                 if (!jsonObjectGetKeyConst(selhash,class_itr->key))
2414                                         continue;
2415
2416                                 if ( snode->type == JSON_HASH ) {
2417
2418                                         jsonIterator* order_itr = jsonNewIterator( snode );
2419                                         while ( (onode = jsonIteratorNext( order_itr )) ) {
2420
2421                                                 if (!oilsIDLFindPath( "/%s/fields/%s", class_itr->key, order_itr->key ))
2422                                                         continue;
2423
2424                                                 char* direction = NULL;
2425                                                 if ( onode->type == JSON_HASH ) {
2426                                                         if ( jsonObjectGetKeyConst( onode, "transform" ) ) {
2427                                                                 string = searchFieldTransform(
2428                                                                         class_itr->key,
2429                                                                         oilsIDLFindPath( "/%s/fields/%s", class_itr->key, order_itr->key ),
2430                                                                         onode
2431                                                                 );
2432                                                         } else {
2433                                                                 growing_buffer* field_buf = buffer_init(16);
2434                                                                 buffer_fadd(field_buf, "\"%s\".%s", class_itr->key, order_itr->key);
2435                                                                 string = buffer_release(field_buf);
2436                                                         }
2437
2438                                                         if ( (_tmp = jsonObjectGetKeyConst( onode, "direction" )) ) {
2439                                                                 direction = jsonObjectToSimpleString(_tmp);
2440                                                                 if (!strncasecmp(direction, "d", 1)) {
2441                                                                         free(direction);
2442                                                                         direction = " DESC";
2443                                                                 } else {
2444                                                                         free(direction);
2445                                                                         direction = " ASC";
2446                                                                 }
2447                                                         }
2448
2449                                                 } else {
2450                                                         string = strdup(order_itr->key);
2451                                                         direction = jsonObjectToSimpleString(onode);
2452                                                         if (!strncasecmp(direction, "d", 1)) {
2453                                                                 free(direction);
2454                                                                 direction = " DESC";
2455                                                         } else {
2456                                                                 free(direction);
2457                                                                 direction = " ASC";
2458                                                         }
2459                                                 }
2460
2461                                                 if (first) {
2462                                                         first = 0;
2463                                                 } else {
2464                                                         buffer_add(order_buf, ", ");
2465                                                 }
2466
2467                                                 buffer_add(order_buf, string);
2468                                                 free(string);
2469
2470                                                 if (direction) {
2471                                                         buffer_add(order_buf, direction);
2472                                                 }
2473
2474                                         }
2475
2476                     jsonIteratorFree(order_itr);
2477
2478                                 } else {
2479                                         string = jsonObjectToSimpleString(snode);
2480                                         buffer_add(order_buf, string);
2481                                         free(string);
2482                                         break;
2483                                 }
2484
2485                         }
2486
2487             jsonIteratorFree(class_itr);
2488
2489                         string = buffer_release(order_buf);
2490
2491                         if (strlen(string)) {
2492                                 buffer_fadd(
2493                                         sql_buf,
2494                                         " ORDER BY %s",
2495                                         string
2496                                 );
2497                         }
2498
2499                         free(string);
2500                 }
2501
2502                 if ( (_tmp = jsonObjectGetKeyConst( order_hash, "limit" )) ){
2503                         string = jsonObjectToSimpleString(_tmp);
2504                         buffer_fadd(
2505                                 sql_buf,
2506                                 " LIMIT %d",
2507                                 atoi(string)
2508                         );
2509                         free(string);
2510                 }
2511
2512                 _tmp = jsonObjectGetKeyConst( order_hash, "offset" );
2513                 if (_tmp) {
2514                         string = jsonObjectToSimpleString(_tmp);
2515                         buffer_fadd(
2516                                 sql_buf,
2517                                 " OFFSET %d",
2518                                 atoi(string)
2519                         );
2520                         free(string);
2521                 }
2522         }
2523
2524         if (defaultselhash) jsonObjectFree(defaultselhash);
2525
2526         buffer_add(sql_buf, ";");
2527         return buffer_release(sql_buf);
2528 }
2529
2530 int doJSONSearch ( osrfMethodContext* ctx ) {
2531         OSRF_METHOD_VERIFY_CONTEXT(ctx);
2532         osrfLogDebug(OSRF_LOG_MARK, "Recieved query request");
2533
2534         int err = 0;
2535
2536         // XXX for now...
2537         dbhandle = writehandle;
2538
2539         jsonObject* hash = jsonObjectGetIndex(ctx->params, 0);
2540
2541     int flags = 0;
2542
2543         if (jsonBoolIsTrue(jsonObjectGetKey( hash, "distinct" )))
2544          flags |= SELECT_DISTINCT;
2545
2546         if ( ((int)jsonObjectGetNumber(jsonObjectGetKey( hash, "distinct" ))) == 1 ) // support 1/0 for perl's sake
2547          flags |= SELECT_DISTINCT;
2548
2549         if (jsonBoolIsTrue(jsonObjectGetKey( hash, "no_i18n" )))
2550          flags |= DISABLE_I18N;
2551
2552         if ( ((int)jsonObjectGetNumber(jsonObjectGetKey( hash, "no_i18n" ))) == 1 ) // support 1/0 for perl's sake
2553          flags |= DISABLE_I18N;
2554
2555         osrfLogDebug(OSRF_LOG_MARK, "Building SQL ...");
2556         char* sql = SELECT(
2557                         ctx,
2558                         jsonObjectGetKey( hash, "select" ),
2559                         jsonObjectGetKey( hash, "from" ),
2560                         jsonObjectGetKey( hash, "where" ),
2561                         jsonObjectGetKey( hash, "having" ),
2562                         jsonObjectGetKey( hash, "order_by" ),
2563                         jsonObjectGetKey( hash, "limit" ),
2564                         jsonObjectGetKey( hash, "offset" ),
2565                         flags
2566         );
2567
2568         if (!sql) {
2569                 err = -1;
2570                 return err;
2571         }
2572
2573         osrfLogDebug(OSRF_LOG_MARK, "%s SQL =  %s", MODULENAME, sql);
2574         dbi_result result = dbi_conn_query(dbhandle, sql);
2575
2576         if(result) {
2577                 osrfLogDebug(OSRF_LOG_MARK, "Query returned with no errors");
2578
2579                 if (dbi_result_first_row(result)) {
2580                         /* JSONify the result */
2581                         osrfLogDebug(OSRF_LOG_MARK, "Query returned at least one row");
2582
2583                         do {
2584                                 jsonObject* return_val = oilsMakeJSONFromResult( result );
2585                                 osrfAppRespond( ctx, return_val );
2586                 jsonObjectFree( return_val );
2587                         } while (dbi_result_next_row(result));
2588
2589                 } else {
2590                         osrfLogDebug(OSRF_LOG_MARK, "%s returned no results for query %s", MODULENAME, sql);
2591                 }
2592
2593                 osrfAppRespondComplete( ctx, NULL );
2594
2595                 /* clean up the query */
2596                 dbi_result_free(result);
2597
2598         } else {
2599                 err = -1;
2600                 osrfLogError(OSRF_LOG_MARK, "%s: Error with query [%s]", MODULENAME, sql);
2601                 osrfAppSessionStatus(
2602                         ctx->session,
2603                         OSRF_STATUS_INTERNALSERVERERROR,
2604                         "osrfMethodException",
2605                         ctx->request,
2606                         "Severe query error -- see error log for more details"
2607                 );
2608         }
2609
2610         free(sql);
2611         return err;
2612 }
2613
2614 static jsonObject* doFieldmapperSearch ( osrfMethodContext* ctx, osrfHash* meta,
2615                 const jsonObject* params, int* err ) {
2616
2617         // XXX for now...
2618         dbhandle = writehandle;
2619
2620         osrfHash* links = osrfHashGet(meta, "links");
2621         osrfHash* fields = osrfHashGet(meta, "fields");
2622         char* core_class = osrfHashGet(meta, "classname");
2623         char* pkey = osrfHashGet(meta, "primarykey");
2624
2625         const jsonObject* _tmp;
2626         jsonObject* obj;
2627         jsonObject* search_hash = jsonObjectGetIndex(params, 0);
2628         jsonObject* order_hash = jsonObjectGetIndex(params, 1);
2629
2630         char* sql = buildSELECT( search_hash, order_hash, meta, ctx );
2631         if (!sql) {
2632                 *err = -1;
2633                 return NULL;
2634         }
2635
2636         osrfLogDebug(OSRF_LOG_MARK, "%s SQL =  %s", MODULENAME, sql);
2637         dbi_result result = dbi_conn_query(dbhandle, sql);
2638
2639         jsonObject* res_list = jsonNewObjectType(JSON_ARRAY);
2640         if(result) {
2641                 osrfLogDebug(OSRF_LOG_MARK, "Query returned with no errors");
2642                 osrfHash* dedup = osrfNewHash();
2643
2644                 if (dbi_result_first_row(result)) {
2645                         /* JSONify the result */
2646                         osrfLogDebug(OSRF_LOG_MARK, "Query returned at least one row");
2647                         do {
2648                                 obj = oilsMakeFieldmapperFromResult( result, meta );
2649                                 int pkey_pos = atoi( osrfHashGet( osrfHashGet( fields, pkey ), "array_position" ) );
2650                                 char* pkey_val = jsonObjectToSimpleString( jsonObjectGetIndex( obj, pkey_pos ) );
2651                                 if ( osrfHashGet( dedup, pkey_val ) ) {
2652                                         jsonObjectFree(obj);
2653                                         free(pkey_val);
2654                                 } else {
2655                                         osrfHashSet( dedup, pkey_val, pkey_val );
2656                                         jsonObjectPush(res_list, obj);
2657                                 }
2658                         } while (dbi_result_next_row(result));
2659                 } else {
2660                         osrfLogDebug(OSRF_LOG_MARK, "%s returned no results for query %s", MODULENAME, sql);
2661                 }
2662
2663                 osrfHashFree(dedup);
2664
2665                 /* clean up the query */
2666                 dbi_result_free(result);
2667
2668         } else {
2669                 osrfLogError(OSRF_LOG_MARK, "%s: Error retrieving %s with query [%s]", MODULENAME, osrfHashGet(meta, "fieldmapper"), sql);
2670                 osrfAppSessionStatus(
2671                         ctx->session,
2672                         OSRF_STATUS_INTERNALSERVERERROR,
2673                         "osrfMethodException",
2674                         ctx->request,
2675                         "Severe query error -- see error log for more details"
2676                 );
2677                 *err = -1;
2678                 free(sql);
2679                 jsonObjectFree(res_list);
2680                 return jsonNULL;
2681
2682         }
2683
2684         free(sql);
2685
2686         if (res_list->size && order_hash) {
2687                 _tmp = jsonObjectGetKeyConst( order_hash, "flesh" );
2688                 if (_tmp) {
2689                         int x = (int)jsonObjectGetNumber(_tmp);
2690                         if (x == -1 || x > max_flesh_depth) x = max_flesh_depth;
2691
2692                         const jsonObject* temp_blob;
2693                         if ((temp_blob = jsonObjectGetKeyConst( order_hash, "flesh_fields" )) && x > 0) {
2694
2695                                 jsonObject* flesh_blob = jsonObjectClone( temp_blob );
2696                                 const jsonObject* flesh_fields = jsonObjectGetKeyConst( flesh_blob, core_class );
2697
2698                                 osrfStringArray* link_fields = NULL;
2699
2700                                 if (flesh_fields) {
2701                                         if (flesh_fields->size == 1) {
2702                                                 char* _t = jsonObjectToSimpleString( jsonObjectGetIndex( flesh_fields, 0 ) );
2703                                                 if (!strcmp(_t,"*")) link_fields = osrfHashKeys( links );
2704                                                 free(_t);
2705                                         }
2706
2707                                         if (!link_fields) {
2708                                                 jsonObject* _f;
2709                                                 link_fields = osrfNewStringArray(1);
2710                                                 jsonIterator* _i = jsonNewIterator( flesh_fields );
2711                                                 while ((_f = jsonIteratorNext( _i ))) {
2712                                                         osrfStringArrayAdd( link_fields, jsonObjectToSimpleString( _f ) );
2713                                                 }
2714                         jsonIteratorFree(_i);
2715                                         }
2716                                 }
2717
2718                                 jsonObject* cur;
2719                                 jsonIterator* itr = jsonNewIterator( res_list );
2720                                 while ((cur = jsonIteratorNext( itr ))) {
2721
2722                                         int i = 0;
2723                                         char* link_field;
2724
2725                                         while ( (link_field = osrfStringArrayGetString(link_fields, i++)) ) {
2726
2727                                                 osrfLogDebug(OSRF_LOG_MARK, "Starting to flesh %s", link_field);
2728
2729                                                 osrfHash* kid_link = osrfHashGet(links, link_field);
2730                                                 if (!kid_link) continue;
2731
2732                                                 osrfHash* field = osrfHashGet(fields, link_field);
2733                                                 if (!field) continue;
2734
2735                                                 osrfHash* value_field = field;
2736
2737                                                 osrfHash* kid_idl = osrfHashGet(oilsIDL(), osrfHashGet(kid_link, "class"));
2738                                                 if (!kid_idl) continue;
2739
2740                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "has_many" ))) { // has_many
2741                                                         value_field = osrfHashGet( fields, osrfHashGet(meta, "primarykey") );
2742                                                 }
2743
2744                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "might_have" ))) { // might_have
2745                                                         value_field = osrfHashGet( fields, osrfHashGet(meta, "primarykey") );
2746                                                 }
2747
2748                                                 osrfStringArray* link_map = osrfHashGet( kid_link, "map" );
2749
2750                                                 if (link_map->size > 0) {
2751                                                         jsonObject* _kid_key = jsonNewObjectType(JSON_ARRAY);
2752                                                         jsonObjectPush(
2753                                                                 _kid_key,
2754                                                                 jsonNewObject( osrfStringArrayGetString( link_map, 0 ) )
2755                                                         );
2756
2757                                                         jsonObjectSetKey(
2758                                                                 flesh_blob,
2759                                                                 osrfHashGet(kid_link, "class"),
2760                                                                 _kid_key
2761                                                         );
2762                                                 };
2763
2764                                                 osrfLogDebug(
2765                                                         OSRF_LOG_MARK,
2766                                                         "Link field: %s, remote class: %s, fkey: %s, reltype: %s",
2767                                                         osrfHashGet(kid_link, "field"),
2768                                                         osrfHashGet(kid_link, "class"),
2769                                                         osrfHashGet(kid_link, "key"),
2770                                                         osrfHashGet(kid_link, "reltype")
2771                                                 );
2772
2773                                                 jsonObject* fake_params = jsonNewObjectType(JSON_ARRAY);
2774                                                 jsonObjectPush(fake_params, jsonNewObjectType(JSON_HASH)); // search hash
2775                                                 jsonObjectPush(fake_params, jsonNewObjectType(JSON_HASH)); // order/flesh hash
2776
2777                                                 osrfLogDebug(OSRF_LOG_MARK, "Creating dummy params object...");
2778
2779                                                 char* search_key =
2780                                                 jsonObjectToSimpleString(
2781                                                         jsonObjectGetIndex(
2782                                                                 cur,
2783                                                                 atoi( osrfHashGet(value_field, "array_position") )
2784                                                         )
2785                                                 );
2786
2787                                                 if (!search_key) {
2788                                                         osrfLogDebug(OSRF_LOG_MARK, "Nothing to search for!");
2789                                                         continue;
2790                                                 }
2791
2792                                                 jsonObjectSetKey(
2793                                                         jsonObjectGetIndex(fake_params, 0),
2794                                                         osrfHashGet(kid_link, "key"),
2795                                                         jsonNewObject( search_key )
2796                                                 );
2797
2798                                                 free(search_key);
2799
2800
2801                                                 jsonObjectSetKey(
2802                                                         jsonObjectGetIndex(fake_params, 1),
2803                                                         "flesh",
2804                                                         jsonNewNumberObject( (double)(x - 1 + link_map->size) )
2805                                                 );
2806
2807                                                 if (flesh_blob)
2808                                                         jsonObjectSetKey( jsonObjectGetIndex(fake_params, 1), "flesh_fields", jsonObjectClone(flesh_blob) );
2809
2810                                                 if (jsonObjectGetKeyConst(order_hash, "order_by")) {
2811                                                         jsonObjectSetKey(
2812                                                                 jsonObjectGetIndex(fake_params, 1),
2813                                                                 "order_by",
2814                                                                 jsonObjectClone(jsonObjectGetKeyConst(order_hash, "order_by"))
2815                                                         );
2816                                                 }
2817
2818                                                 if (jsonObjectGetKeyConst(order_hash, "select")) {
2819                                                         jsonObjectSetKey(
2820                                                                 jsonObjectGetIndex(fake_params, 1),
2821                                                                 "select",
2822                                                                 jsonObjectClone(jsonObjectGetKeyConst(order_hash, "select"))
2823                                                         );
2824                                                 }
2825
2826                                                 jsonObject* kids = doFieldmapperSearch(ctx, kid_idl, fake_params, err);
2827
2828                                                 if(*err) {
2829                                                         jsonObjectFree( fake_params );
2830                                                         osrfStringArrayFree(link_fields);
2831                                                         jsonIteratorFree(itr);
2832                                                         jsonObjectFree(res_list);
2833                                                         jsonObjectFree(flesh_blob);
2834                                                         return jsonNULL;
2835                                                 }
2836
2837                                                 osrfLogDebug(OSRF_LOG_MARK, "Search for %s return %d linked objects", osrfHashGet(kid_link, "class"), kids->size);
2838
2839                                                 jsonObject* X = NULL;
2840                                                 if ( link_map->size > 0 && kids->size > 0 ) {
2841                                                         X = kids;
2842                                                         kids = jsonNewObjectType(JSON_ARRAY);
2843
2844                                                         jsonObject* _k_node;
2845                                                         jsonIterator* _k = jsonNewIterator( X );
2846                                                         while ((_k_node = jsonIteratorNext( _k ))) {
2847                                                                 jsonObjectPush(
2848                                                                         kids,
2849                                                                         jsonObjectClone(
2850                                                                                 jsonObjectGetIndex(
2851                                                                                         _k_node,
2852                                                                                         (unsigned long)atoi(
2853                                                                                                 osrfHashGet(
2854                                                                                                         osrfHashGet(
2855                                                                                                                 osrfHashGet(
2856                                                                                                                         osrfHashGet(
2857                                                                                                                                 oilsIDL(),
2858                                                                                                                                 osrfHashGet(kid_link, "class")
2859                                                                                                                         ),
2860                                                                                                                         "fields"
2861                                                                                                                 ),
2862                                                                                                                 osrfStringArrayGetString( link_map, 0 )
2863                                                                                                         ),
2864                                                                                                         "array_position"
2865                                                                                                 )
2866                                                                                         )
2867                                                                                 )
2868                                                                         )
2869                                                                 );
2870                                                         }
2871                                                         jsonIteratorFree(_k);
2872                                                 }
2873
2874                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "has_a" )) || !(strcmp( osrfHashGet(kid_link, "reltype"), "might_have" ))) {
2875                                                         osrfLogDebug(OSRF_LOG_MARK, "Storing fleshed objects in %s", osrfHashGet(kid_link, "field"));
2876                                                         jsonObjectSetIndex(
2877                                                                 cur,
2878                                                                 (unsigned long)atoi( osrfHashGet( field, "array_position" ) ),
2879                                                                 jsonObjectClone( jsonObjectGetIndex(kids, 0) )
2880                                                         );
2881                                                 }
2882
2883                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "has_many" ))) { // has_many
2884                                                         osrfLogDebug(OSRF_LOG_MARK, "Storing fleshed objects in %s", osrfHashGet(kid_link, "field"));
2885                                                         jsonObjectSetIndex(
2886                                                                 cur,
2887                                                                 (unsigned long)atoi( osrfHashGet( field, "array_position" ) ),
2888                                                                 jsonObjectClone( kids )
2889                                                         );
2890                                                 }
2891
2892                                                 if (X) {
2893                                                         jsonObjectFree(kids);
2894                                                         kids = X;
2895                                                 }
2896
2897                                                 jsonObjectFree( kids );
2898                                                 jsonObjectFree( fake_params );
2899
2900                                                 osrfLogDebug(OSRF_LOG_MARK, "Fleshing of %s complete", osrfHashGet(kid_link, "field"));
2901                                                 osrfLogDebug(OSRF_LOG_MARK, "%s", jsonObjectToJSON(cur));
2902
2903                                         }
2904                                 }
2905                                 jsonObjectFree( flesh_blob );
2906                                 osrfStringArrayFree(link_fields);
2907                                 jsonIteratorFree(itr);
2908                         }
2909                 }
2910         }
2911
2912         return res_list;
2913 }
2914
2915
2916 static jsonObject* doUpdate(osrfMethodContext* ctx, int* err ) {
2917
2918         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
2919         jsonObject* target = jsonObjectGetIndex(ctx->params, 0);
2920
2921         if (!verifyObjectClass(ctx, target)) {
2922                 *err = -1;
2923                 return jsonNULL;
2924         }
2925
2926         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
2927                 osrfAppSessionStatus(
2928                         ctx->session,
2929                         OSRF_STATUS_BADREQUEST,
2930                         "osrfMethodException",
2931                         ctx->request,
2932                         "No active transaction -- required for UPDATE"
2933                 );
2934                 *err = -1;
2935                 return jsonNULL;
2936         }
2937
2938         if (osrfHashGet( meta, "readonly" ) && strncasecmp("true", osrfHashGet( meta, "readonly" ), 4)) {
2939                 osrfAppSessionStatus(
2940                         ctx->session,
2941                         OSRF_STATUS_BADREQUEST,
2942                         "osrfMethodException",
2943                         ctx->request,
2944                         "Cannot UPDATE readonly class"
2945                 );
2946                 *err = -1;
2947                 return jsonNULL;
2948         }
2949
2950         dbhandle = writehandle;
2951
2952         char* trans_id = osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" );
2953
2954         // Set the last_xact_id
2955         osrfHash* last_xact_id;
2956         if ((last_xact_id = oilsIDLFindPath("/%s/fields/last_xact_id", target->classname))) {
2957                 int index = atoi( osrfHashGet(last_xact_id, "array_position") );
2958                 osrfLogDebug(OSRF_LOG_MARK, "Setting last_xact_id to %s on %s at position %d", trans_id, target->classname, index);
2959                 jsonObjectSetIndex(target, index, jsonNewObject(trans_id));
2960         }
2961
2962         char* pkey = osrfHashGet(meta, "primarykey");
2963         osrfHash* fields = osrfHashGet(meta, "fields");
2964
2965         char* id =
2966                 jsonObjectToSimpleString(
2967                         jsonObjectGetIndex(
2968                                 target,
2969                                 atoi( osrfHashGet( osrfHashGet( fields, pkey ), "array_position" ) )
2970                         )
2971                 );
2972
2973         osrfLogDebug(
2974                 OSRF_LOG_MARK,
2975                 "%s updating %s object with %s = %s",
2976                 MODULENAME,
2977                 osrfHashGet(meta, "fieldmapper"),
2978                 pkey,
2979                 id
2980         );
2981
2982         growing_buffer* sql = buffer_init(128);
2983         buffer_fadd(sql,"UPDATE %s SET", osrfHashGet(meta, "tablename"));
2984
2985         int i = 0;
2986         int first = 1;
2987         char* field_name;
2988         osrfStringArray* field_list = osrfHashKeys( fields );
2989         while ( (field_name = osrfStringArrayGetString(field_list, i++)) ) {
2990
2991                 osrfHash* field = osrfHashGet( fields, field_name );
2992
2993                 if(!( strcmp( field_name, pkey ) )) continue;
2994                 if(!( strcmp( osrfHashGet(osrfHashGet(fields,field_name), "virtual"), "true" ) )) continue;
2995
2996                 jsonObject* field_object = jsonObjectGetIndex( target, atoi(osrfHashGet(field, "array_position")) );
2997
2998                 char* value;
2999                 if (field_object && field_object->classname) {
3000                         value = jsonObjectToSimpleString(
3001                                         jsonObjectGetIndex(
3002                                                 field_object,
3003                                                 atoi(
3004                                                         osrfHashGet(
3005                                                                 osrfHashGet(
3006                                                                         oilsIDLFindPath("/%s/fields", field_object->classname),
3007                                                                         (char*)oilsIDLFindPath("/%s/primarykey", field_object->classname)
3008                                                                 ),
3009                                                                 "array_position"
3010                                                         )
3011                                                 )
3012                                         )
3013                                 );
3014
3015                 } else {
3016                         value = jsonObjectToSimpleString( field_object );
3017                 }
3018
3019                 osrfLogDebug( OSRF_LOG_MARK, "Updating %s object with %s = %s", osrfHashGet(meta, "fieldmapper"), field_name, value);
3020
3021                 if (!field_object || field_object->type == JSON_NULL) {
3022                         if ( !(!( strcmp( osrfHashGet(meta, "classname"), "au" ) ) && !( strcmp( field_name, "passwd" ) )) ) { // arg at the special case!
3023                                 if (first) first = 0;
3024                                 else buffer_add(sql, ",");
3025                                 buffer_fadd( sql, " %s = NULL", field_name );
3026                         }
3027
3028                 } else if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
3029                         if (first) first = 0;
3030                         else buffer_add(sql, ",");
3031
3032                         if ( !strncmp(osrfHashGet(field, "datatype"), "INT", (size_t)3) ) {
3033                                 buffer_fadd( sql, " %s = %ld", field_name, atol(value) );
3034                         } else if ( !strcmp(osrfHashGet(field, "datatype"), "NUMERIC") ) {
3035                                 buffer_fadd( sql, " %s = %f", field_name, atof(value) );
3036                         }
3037
3038                         osrfLogDebug( OSRF_LOG_MARK, "%s is of type %s", field_name, osrfHashGet(field, "datatype"));
3039
3040                 } else {
3041                         if ( dbi_conn_quote_string(dbhandle, &value) ) {
3042                                 if (first) first = 0;
3043                                 else buffer_add(sql, ",");
3044                                 buffer_fadd( sql, " %s = %s", field_name, value );
3045
3046                         } else {
3047                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting string [%s]", MODULENAME, value);
3048                                 osrfAppSessionStatus(
3049                                         ctx->session,
3050                                         OSRF_STATUS_INTERNALSERVERERROR,
3051                                         "osrfMethodException",
3052                                         ctx->request,
3053                                         "Error quoting string -- please see the error log for more details"
3054                                 );
3055                                 free(value);
3056                                 free(id);
3057                                 buffer_free(sql);
3058                                 *err = -1;
3059                                 return jsonNULL;
3060                         }
3061                 }
3062
3063                 free(value);
3064
3065         }
3066
3067         jsonObject* obj = jsonParseString(id);
3068
3069         if ( strcmp( osrfHashGet( osrfHashGet( osrfHashGet(meta, "fields"), pkey ), "primitive" ), "number" ) )
3070                 dbi_conn_quote_string(dbhandle, &id);
3071
3072         buffer_fadd( sql, " WHERE %s = %s;", pkey, id );
3073
3074         char* query = buffer_release(sql);
3075         osrfLogDebug(OSRF_LOG_MARK, "%s: Update SQL [%s]", MODULENAME, query);
3076
3077         dbi_result result = dbi_conn_query(dbhandle, query);
3078         free(query);
3079
3080         if (!result) {
3081                 jsonObjectFree(obj);
3082                 obj = jsonNewObject(NULL);
3083                 osrfLogError(
3084                         OSRF_LOG_MARK,
3085                         "%s ERROR updating %s object with %s = %s",
3086                         MODULENAME,
3087                         osrfHashGet(meta, "fieldmapper"),
3088                         pkey,
3089                         id
3090                 );
3091         }
3092
3093         free(id);
3094
3095         return obj;
3096 }
3097
3098 static jsonObject* doDelete(osrfMethodContext* ctx, int* err ) {
3099
3100         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
3101
3102         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
3103                 osrfAppSessionStatus(
3104                         ctx->session,
3105                         OSRF_STATUS_BADREQUEST,
3106                         "osrfMethodException",
3107                         ctx->request,
3108                         "No active transaction -- required for DELETE"
3109                 );
3110                 *err = -1;
3111                 return jsonNULL;
3112         }
3113
3114         if (osrfHashGet( meta, "readonly" ) && strncasecmp("true", osrfHashGet( meta, "readonly" ), 4)) {
3115                 osrfAppSessionStatus(
3116                         ctx->session,
3117                         OSRF_STATUS_BADREQUEST,
3118                         "osrfMethodException",
3119                         ctx->request,
3120                         "Cannot DELETE readonly class"
3121                 );
3122                 *err = -1;
3123                 return jsonNULL;
3124         }
3125
3126         dbhandle = writehandle;
3127
3128         jsonObject* obj;
3129
3130         char* pkey = osrfHashGet(meta, "primarykey");
3131
3132         char* id;
3133         if (jsonObjectGetIndex(ctx->params, 0)->classname) {
3134                 if (!verifyObjectClass(ctx, jsonObjectGetIndex( ctx->params, 0 ))) {
3135                         *err = -1;
3136                         return jsonNULL;
3137                 }
3138
3139                 id = jsonObjectToSimpleString(
3140                         jsonObjectGetIndex(
3141                                 jsonObjectGetIndex(ctx->params, 0),
3142                                 atoi( osrfHashGet( osrfHashGet( osrfHashGet(meta, "fields"), pkey ), "array_position") )
3143                         )
3144                 );
3145         } else {
3146                 id = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
3147         }
3148
3149         osrfLogDebug(
3150                 OSRF_LOG_MARK,
3151                 "%s deleting %s object with %s = %s",
3152                 MODULENAME,
3153                 osrfHashGet(meta, "fieldmapper"),
3154                 pkey,
3155                 id
3156         );
3157
3158         obj = jsonParseString(id);
3159
3160         if ( strcmp( osrfHashGet( osrfHashGet( osrfHashGet(meta, "fields"), pkey ), "primitive" ), "number" ) )
3161                 dbi_conn_quote_string(writehandle, &id);
3162
3163         dbi_result result = dbi_conn_queryf(writehandle, "DELETE FROM %s WHERE %s = %s;", osrfHashGet(meta, "tablename"), pkey, id);
3164
3165         if (!result) {
3166                 jsonObjectFree(obj);
3167                 obj = jsonNewObject(NULL);
3168                 osrfLogError(
3169                         OSRF_LOG_MARK,
3170                         "%s ERROR deleting %s object with %s = %s",
3171                         MODULENAME,
3172                         osrfHashGet(meta, "fieldmapper"),
3173                         pkey,
3174                         id
3175                 );
3176         }
3177
3178         free(id);
3179
3180         return obj;
3181
3182 }
3183
3184
3185 static jsonObject* oilsMakeFieldmapperFromResult( dbi_result result, osrfHash* meta) {
3186         if(!(result && meta)) return jsonNULL;
3187
3188         jsonObject* object = jsonNewObject(NULL);
3189         jsonObjectSetClass(object, osrfHashGet(meta, "classname"));
3190
3191         osrfHash* fields = osrfHashGet(meta, "fields");
3192
3193         osrfLogInternal(OSRF_LOG_MARK, "Setting object class to %s ", object->classname);
3194
3195         osrfHash* _f;
3196         time_t _tmp_dt;
3197         char dt_string[256];
3198         struct tm gmdt;
3199
3200         int fmIndex;
3201         int columnIndex = 1;
3202         int attr;
3203         unsigned short type;
3204         const char* columnName;
3205
3206         /* cycle through the column list */
3207         while( (columnName = dbi_result_get_field_name(result, columnIndex++)) ) {
3208
3209                 osrfLogInternal(OSRF_LOG_MARK, "Looking for column named [%s]...", (char*)columnName);
3210
3211                 fmIndex = -1; // reset the position
3212
3213                 /* determine the field type and storage attributes */
3214                 type = dbi_result_get_field_type(result, columnName);
3215                 attr = dbi_result_get_field_attribs(result, columnName);
3216
3217                 /* fetch the fieldmapper index */
3218                 if( (_f = osrfHashGet(fields, (char*)columnName)) ) {
3219                         char* virt = (char*)osrfHashGet(_f, "virtual");
3220                         char* pos = (char*)osrfHashGet(_f, "array_position");
3221
3222                         if ( !virt || !pos || !(strcmp( virt, "true" )) ) continue;
3223
3224                         fmIndex = atoi( pos );
3225                         osrfLogInternal(OSRF_LOG_MARK, "... Found column at position [%s]...", pos);
3226                 } else {
3227                         continue;
3228                 }
3229
3230                 if (dbi_result_field_is_null(result, columnName)) {
3231                         jsonObjectSetIndex( object, fmIndex, jsonNewObject(NULL) );
3232                 } else {
3233
3234                         switch( type ) {
3235
3236                                 case DBI_TYPE_INTEGER :
3237
3238                                         if( attr & DBI_INTEGER_SIZE8 )
3239                                                 jsonObjectSetIndex( object, fmIndex,
3240                                                         jsonNewNumberObject(dbi_result_get_longlong(result, columnName)));
3241                                         else
3242                                                 jsonObjectSetIndex( object, fmIndex,
3243                                                         jsonNewNumberObject(dbi_result_get_int(result, columnName)));
3244
3245                                         break;
3246
3247                                 case DBI_TYPE_DECIMAL :
3248                                         jsonObjectSetIndex( object, fmIndex,
3249                                                         jsonNewNumberObject(dbi_result_get_double(result, columnName)));
3250                                         break;
3251
3252                                 case DBI_TYPE_STRING :
3253
3254
3255                                         jsonObjectSetIndex(
3256                                                 object,
3257                                                 fmIndex,
3258                                                 jsonNewObject( dbi_result_get_string(result, columnName) )
3259                                         );
3260
3261                                         break;
3262
3263                                 case DBI_TYPE_DATETIME :
3264
3265                                         memset(dt_string, '\0', sizeof(dt_string));
3266                                         memset(&gmdt, '\0', sizeof(gmdt));
3267
3268                                         _tmp_dt = dbi_result_get_datetime(result, columnName);
3269
3270
3271                                         if (!(attr & DBI_DATETIME_DATE)) {
3272                                                 gmtime_r( &_tmp_dt, &gmdt );
3273                                                 strftime(dt_string, sizeof(dt_string), "%T", &gmdt);
3274                                         } else if (!(attr & DBI_DATETIME_TIME)) {
3275                                                 localtime_r( &_tmp_dt, &gmdt );
3276                                                 strftime(dt_string, sizeof(dt_string), "%F", &gmdt);
3277                                         } else {
3278                                                 localtime_r( &_tmp_dt, &gmdt );
3279                                                 strftime(dt_string, sizeof(dt_string), "%FT%T%z", &gmdt);
3280                                         }
3281
3282                                         jsonObjectSetIndex( object, fmIndex, jsonNewObject(dt_string) );
3283
3284                                         break;
3285
3286                                 case DBI_TYPE_BINARY :
3287                                         osrfLogError( OSRF_LOG_MARK,
3288                                                 "Can't do binary at column %s : index %d", columnName, columnIndex - 1);
3289                         }
3290                 }
3291         }
3292
3293         return object;
3294 }
3295
3296 static jsonObject* oilsMakeJSONFromResult( dbi_result result ) {
3297         if(!result) return jsonNULL;
3298
3299         jsonObject* object = jsonNewObject(NULL);
3300
3301         time_t _tmp_dt;
3302         char dt_string[256];
3303         struct tm gmdt;
3304
3305         int fmIndex;
3306         int columnIndex = 1;
3307         int attr;
3308         unsigned short type;
3309         const char* columnName;
3310
3311         /* cycle through the column list */
3312         while( (columnName = dbi_result_get_field_name(result, columnIndex++)) ) {
3313
3314                 osrfLogInternal(OSRF_LOG_MARK, "Looking for column named [%s]...", (char*)columnName);
3315
3316                 fmIndex = -1; // reset the position
3317
3318                 /* determine the field type and storage attributes */
3319                 type = dbi_result_get_field_type(result, columnName);
3320                 attr = dbi_result_get_field_attribs(result, columnName);
3321
3322                 if (dbi_result_field_is_null(result, columnName)) {
3323                         jsonObjectSetKey( object, columnName, jsonNewObject(NULL) );
3324                 } else {
3325
3326                         switch( type ) {
3327
3328                                 case DBI_TYPE_INTEGER :
3329
3330                                         if( attr & DBI_INTEGER_SIZE8 )
3331                                                 jsonObjectSetKey( object, columnName, jsonNewNumberObject(dbi_result_get_longlong(result, columnName)) );
3332                                         else
3333                                                 jsonObjectSetKey( object, columnName, jsonNewNumberObject(dbi_result_get_int(result, columnName)) );
3334                                         break;
3335
3336                                 case DBI_TYPE_DECIMAL :
3337                                         jsonObjectSetKey( object, columnName, jsonNewNumberObject(dbi_result_get_double(result, columnName)) );
3338                                         break;
3339
3340                                 case DBI_TYPE_STRING :
3341                                         jsonObjectSetKey( object, columnName, jsonNewObject(dbi_result_get_string(result, columnName)) );
3342                                         break;
3343
3344                                 case DBI_TYPE_DATETIME :
3345
3346                                         memset(dt_string, '\0', sizeof(dt_string));
3347                                         memset(&gmdt, '\0', sizeof(gmdt));
3348
3349                                         _tmp_dt = dbi_result_get_datetime(result, columnName);
3350
3351
3352                                         if (!(attr & DBI_DATETIME_DATE)) {
3353                                                 gmtime_r( &_tmp_dt, &gmdt );
3354                                                 strftime(dt_string, sizeof(dt_string), "%T", &gmdt);
3355                                         } else if (!(attr & DBI_DATETIME_TIME)) {
3356                                                 localtime_r( &_tmp_dt, &gmdt );
3357                                                 strftime(dt_string, sizeof(dt_string), "%F", &gmdt);
3358                                         } else {
3359                                                 localtime_r( &_tmp_dt, &gmdt );
3360                                                 strftime(dt_string, sizeof(dt_string), "%FT%T%z", &gmdt);
3361                                         }
3362
3363                                         jsonObjectSetKey( object, columnName, jsonNewObject(dt_string) );
3364                                         break;
3365
3366                                 case DBI_TYPE_BINARY :
3367                                         osrfLogError( OSRF_LOG_MARK,
3368                                                 "Can't do binary at column %s : index %d", columnName, columnIndex - 1);
3369                         }
3370                 }
3371         }
3372
3373         return object;
3374 }
3375