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