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 #include <objson/object.h>
  10
  11 #include <time.h>
  12 #include <stdlib.h>
  13 #include <string.h>
  14 #include <unistd.h>
  15
  16 #ifdef RSTORE
  17 #  define MODULENAME "open-ils.reporter-store"
  18 #else
  19 #  define MODULENAME "open-ils.cstore"
  20 #endif
  21
  22 #define DISABLE_I18N    2
  23 #define SELECT_DISTINCT 1
  24 #define AND_OP_JOIN     0
  25 #define OR_OP_JOIN      1
  26
  27 int osrfAppChildInit();
  28 int osrfAppInitialize();
  29 void osrfAppChildExit();
  30
  31 static int verifyObjectClass ( osrfMethodContext*, const jsonObject* );
  32
  33 int beginTransaction ( osrfMethodContext* );
  34 int commitTransaction ( osrfMethodContext* );
  35 int rollbackTransaction ( osrfMethodContext* );
  36
  37 int setSavepoint ( osrfMethodContext* );
  38 int releaseSavepoint ( osrfMethodContext* );
  39 int rollbackSavepoint ( osrfMethodContext* );
  40
  41 int doJSONSearch ( osrfMethodContext* );
  42
  43 int dispatchCRUDMethod ( osrfMethodContext* );
  44 static jsonObject* doCreate ( osrfMethodContext*, int* );
  45 static jsonObject* doRetrieve ( osrfMethodContext*, int* );
  46 static jsonObject* doUpdate ( osrfMethodContext*, int* );
  47 static jsonObject* doDelete ( osrfMethodContext*, int* );
  48 static jsonObject* doFieldmapperSearch ( osrfMethodContext*, osrfHash*,
  49                 const jsonObject*, int* );
  50 static jsonObject* oilsMakeFieldmapperFromResult( dbi_result, osrfHash* );
  51 static jsonObject* oilsMakeJSONFromResult( dbi_result );
  52
  53 static char* searchWriteSimplePredicate ( const char*, osrfHash*,
  54         const char*, const char*, const char* );
  55 static char* searchSimplePredicate ( const char*, const char*, osrfHash*, const jsonObject* );
  56 static char* searchFunctionPredicate ( const char*, osrfHash*, const jsonObjectNode* );
  57 static char* searchFieldTransform ( const char*, osrfHash*, const jsonObject*);
  58 static char* searchFieldTransformPredicate ( const char*, osrfHash*, jsonObjectNode* );
  59 static char* searchBETWEENPredicate ( const char*, osrfHash*, jsonObject* );
  60 static char* searchINPredicate ( const char*, osrfHash*, const jsonObject*, const char* );
  61 static char* searchPredicate ( const char*, osrfHash*, jsonObject* );
  62 static char* searchJOIN ( const jsonObject*, osrfHash* );
  63 static char* searchWHERE ( const jsonObject*, osrfHash*, int );
  64 static char* buildSELECT ( jsonObject*, jsonObject*, osrfHash*, osrfMethodContext* );
  65
  66 static char* SELECT ( osrfMethodContext*, jsonObject*, jsonObject*, jsonObject*, jsonObject*, jsonObject*, jsonObject*, jsonObject*, int );
  67
  68 void userDataFree( void* );
  69 static void sessionDataFree( char*, void* );
  70 static char* getSourceDefinition( osrfHash* );
  71
  72 static dbi_conn writehandle; /* our MASTER db connection */
  73 static dbi_conn dbhandle; /* our CURRENT db connection */
  74 osrfHash readHandles;
  75 static jsonObject* jsonNULL = NULL; //
  76 static int max_flesh_depth = 100;
  77
  78 /* called when this process is about to exit */
  79 void osrfAppChildExit() {
  80         osrfLogDebug(OSRF_LOG_MARK, "Child is exiting, disconnecting from database...");
  81
  82         if (writehandle) {
  83                 dbi_conn_query(writehandle, "ROLLBACK;");
  84                 dbi_conn_close(writehandle);
  85                 writehandle = NULL;
  86         }
  87
  88         if (dbhandle)
  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;
 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                         ((osrfHash*)ctx->session->userData)->freeItem = &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                 jsonObjectNode* cur;
 652                 jsonObjectIterator* itr = jsonNewObjectIterator( obj );
 653                 while ((cur = jsonObjectIteratorNext( itr ))) {
 654                         osrfAppRespond( ctx, cur->item );
 655                 }
 656                 jsonObjectIteratorFree(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, jsonParseString("{}") );
 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                 jsonObjectNode* cur;
 682                 jsonObjectIterator* itr = jsonNewObjectIterator( obj );
 683                 while ((cur = jsonObjectIteratorNext( itr ))) {
 684                         osrfAppRespond(
 685                                 ctx,
 686                                 jsonObjectGetIndex(
 687                                         cur->item,
 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                 jsonObjectIteratorFree(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 = jsonParseString("[]");
 952                         jsonObjectPush(fake_params, jsonParseString("{}"));
 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 = jsonParseString("[]");
1002         jsonObjectPush(fake_params, jsonParseString("{}"));
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 ( dbi_conn_quote_string(dbhandle, &val) ) {
1132                         buffer_fadd( sql_buf, "%s", val );
1133                         free(val);
1134                 } else {
1135                         osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, val);
1136                         free(val);
1137                         buffer_free(sql_buf);
1138                         return NULL;
1139                 }
1140         }
1141
1142         buffer_add(
1143                 sql_buf,
1144                 " )"
1145         );
1146
1147         return buffer_release(sql_buf);
1148 }
1149
1150 static char* searchFunctionPredicate (const char* class, osrfHash* field,
1151                 const jsonObjectNode* node) {
1152         growing_buffer* sql_buf = buffer_init(32);
1153
1154         char* val = searchValueTransform(node->item);
1155
1156         buffer_fadd(
1157                 sql_buf,
1158                 "\"%s\".%s %s %s",
1159                 class,
1160                 osrfHashGet(field, "name"),
1161                 node->key,
1162                 val
1163         );
1164
1165         free(val);
1166
1167         return buffer_release(sql_buf);
1168 }
1169
1170 static char* searchFieldTransform (const char* class, osrfHash* field, const jsonObject* node) {
1171         growing_buffer* sql_buf = buffer_init(32);
1172
1173         char* field_transform = jsonObjectToSimpleString( jsonObjectGetKeyConst( node, "transform" ) );
1174         char* transform_subcolumn = jsonObjectToSimpleString( jsonObjectGetKeyConst( node, "result_field" ) );
1175
1176         if (field_transform) {
1177                 buffer_fadd( sql_buf, "%s(\"%s\".%s", field_transform, class, osrfHashGet(field, "name"));
1178             const jsonObject* array = jsonObjectGetKeyConst( node, "params" );
1179
1180         if (array) {
1181                 int func_item_index = 0;
1182                 jsonObject* func_item;
1183                 while ( (func_item = jsonObjectGetIndex(array, func_item_index++)) ) {
1184
1185                         char* val = jsonObjectToSimpleString(func_item);
1186
1187                     if ( dbi_conn_quote_string(dbhandle, &val) ) {
1188                             buffer_fadd( sql_buf, ",%s", val );
1189                         } else {
1190                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, val);
1191                             free(field_transform);
1192                                         free(val);
1193                                 buffer_free(sql_buf);
1194                                 return NULL;
1195                 }
1196                                 free(val);
1197                         }
1198
1199         }
1200
1201         buffer_add(
1202                 sql_buf,
1203                 " )"
1204         );
1205
1206         } else {
1207                 buffer_fadd( sql_buf, "\"%s\".%s", class, osrfHashGet(field, "name"));
1208         }
1209
1210     if (transform_subcolumn) {
1211         char * tmp = buffer_release(sql_buf);
1212         sql_buf = buffer_init(32);
1213         buffer_fadd(
1214             sql_buf,
1215             "(%s).\"%s\"",
1216             tmp,
1217             transform_subcolumn
1218         );
1219         free(tmp);
1220     }
1221
1222         if (field_transform) free(field_transform);
1223         if (transform_subcolumn) free(transform_subcolumn);
1224
1225         return buffer_release(sql_buf);
1226 }
1227
1228 static char* searchFieldTransformPredicate (const char* class, osrfHash* field, jsonObjectNode* node) {
1229         char* field_transform = searchFieldTransform( class, field, node->item );
1230         char* value = NULL;
1231
1232         if (!jsonObjectGetKeyConst( node->item, "value" )) {
1233                 value = searchWHERE( node->item, osrfHashGet( oilsIDL(), class ), AND_OP_JOIN );
1234         } else if (jsonObjectGetKeyConst( node->item, "value" )->type == JSON_ARRAY) {
1235                 value = searchValueTransform(jsonObjectGetKeyConst( node->item, "value" ));
1236         } else if (jsonObjectGetKeyConst( node->item, "value" )->type == JSON_HASH) {
1237                 value = searchWHERE( jsonObjectGetKeyConst( node->item, "value" ), osrfHashGet( oilsIDL(), class ), AND_OP_JOIN );
1238         } else if (jsonObjectGetKeyConst( node->item, "value" )->type != JSON_NULL) {
1239                 if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1240                         value = jsonNumberToDBString( field, jsonObjectGetKeyConst( node->item, "value" ) );
1241                 } else {
1242                         value = jsonObjectToSimpleString(jsonObjectGetKeyConst( node->item, "value" ));
1243                         if ( !dbi_conn_quote_string(dbhandle, &value) ) {
1244                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, value);
1245                                 free(value);
1246                                 free(field_transform);
1247                                 return NULL;
1248                         }
1249                 }
1250         }
1251
1252         growing_buffer* sql_buf = buffer_init(32);
1253
1254         buffer_fadd(
1255                 sql_buf,
1256                 "%s %s %s",
1257                 field_transform,
1258                 node->key,
1259                 value
1260         );
1261
1262         free(value);
1263         free(field_transform);
1264
1265         return buffer_release(sql_buf);
1266 }
1267
1268 static char* searchSimplePredicate (const char* orig_op, const char* class,
1269                 osrfHash* field, const jsonObject* node) {
1270
1271         char* val = NULL;
1272
1273         if (node->type != JSON_NULL) {
1274                 if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1275                         val = jsonNumberToDBString( field, node );
1276                 } else {
1277                         val = jsonObjectToSimpleString(node);
1278                 }
1279         }
1280
1281         char* pred = searchWriteSimplePredicate( class, field, osrfHashGet(field, "name"), orig_op, val );
1282
1283         if (val) free(val);
1284
1285         return pred;
1286 }
1287
1288 static char* searchWriteSimplePredicate ( const char* class, osrfHash* field,
1289         const char* left, const char* orig_op, const char* right ) {
1290
1291         char* val = NULL;
1292         char* op = NULL;
1293         if (right == NULL) {
1294                 val = strdup("NULL");
1295
1296                 if (strcmp( orig_op, "=" ))
1297                         op = strdup("IS NOT");
1298                 else
1299                         op = strdup("IS");
1300
1301         } else if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1302                 val = strdup(right);
1303                 op = strdup(orig_op);
1304
1305         } else {
1306                 val = strdup(right);
1307                 if ( !dbi_conn_quote_string(dbhandle, &val) ) {
1308                         osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, val);
1309                         free(val);
1310                         return NULL;
1311                 }
1312                 op = strdup(orig_op);
1313         }
1314
1315         growing_buffer* sql_buf = buffer_init(16);
1316         buffer_fadd( sql_buf, "\"%s\".%s %s %s", class, left, op, val );
1317         free(val);
1318         free(op);
1319
1320         return buffer_release(sql_buf);
1321 }
1322
1323 static char* searchBETWEENPredicate (const char* class, osrfHash* field, jsonObject* node) {
1324
1325         char* x_string;
1326         char* y_string;
1327
1328         if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1329                 x_string = jsonNumberToDBString(field, jsonObjectGetIndex(node,0));
1330                 y_string = jsonNumberToDBString(field, jsonObjectGetIndex(node,1));
1331
1332         } else {
1333                 x_string = jsonObjectToSimpleString(jsonObjectGetIndex(node,0));
1334                 y_string = jsonObjectToSimpleString(jsonObjectGetIndex(node,1));
1335                 if ( !(dbi_conn_quote_string(dbhandle, &x_string) && dbi_conn_quote_string(dbhandle, &y_string)) ) {
1336                         osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key strings [%s] and [%s]", MODULENAME, x_string, y_string);
1337                         free(x_string);
1338                         free(y_string);
1339                         return NULL;
1340                 }
1341         }
1342
1343         growing_buffer* sql_buf = buffer_init(32);
1344         buffer_fadd( sql_buf, "%s BETWEEN %s AND %s", osrfHashGet(field, "name"), x_string, y_string );
1345         free(x_string);
1346         free(y_string);
1347
1348         return buffer_release(sql_buf);
1349 }
1350
1351 static char* searchPredicate ( const char* class, osrfHash* field, jsonObject* node ) {
1352
1353         char* pred = NULL;
1354         if (node->type == JSON_ARRAY) { // equality IN search
1355                 pred = searchINPredicate( class, field, node, NULL );
1356         } else if (node->type == JSON_HASH) { // non-equality search
1357                 jsonObjectNode* pred_node;
1358                 jsonObjectIterator* pred_itr = jsonNewObjectIterator( node );
1359                 while ( (pred_node = jsonObjectIteratorNext( pred_itr )) ) {
1360                         if ( !(strcasecmp( pred_node->key,"between" )) )
1361                                 pred = searchBETWEENPredicate( class, field, pred_node->item );
1362                         else if ( !(strcasecmp( pred_node->key,"in" )) || !(strcasecmp( pred_node->key,"not in" )) )
1363                                 pred = searchINPredicate( class, field, pred_node->item, pred_node->key );
1364                         else if ( pred_node->item->type == JSON_ARRAY )
1365                                 pred = searchFunctionPredicate( class, field, pred_node );
1366                         else if ( pred_node->item->type == JSON_HASH )
1367                                 pred = searchFieldTransformPredicate( class, field, pred_node );
1368                         else
1369                                 pred = searchSimplePredicate( pred_node->key, class, field, pred_node->item );
1370
1371                         break;
1372                 }
1373         jsonObjectIteratorFree(pred_itr);
1374         } else if (node->type == JSON_NULL) { // IS NULL search
1375                 growing_buffer* _p = buffer_init(64);
1376                 buffer_fadd(
1377                         _p,
1378                         "\"%s\".%s IS NULL",
1379                         class,
1380                         osrfHashGet(field, "name")
1381                 );
1382                 pred = buffer_release(_p);
1383         } else { // equality search
1384                 pred = searchSimplePredicate( "=", class, field, node );
1385         }
1386
1387         return pred;
1388
1389 }
1390
1391
1392 /*
1393
1394 join : {
1395         acn : {
1396                 field : record,
1397                 fkey : id
1398                 type : left
1399                 filter_op : or
1400                 filter : { ... },
1401                 join : {
1402                         acp : {
1403                                 field : call_number,
1404                                 fkey : id,
1405                                 filter : { ... },
1406                         },
1407                 },
1408         },
1409         mrd : {
1410                 field : record,
1411                 type : inner
1412                 fkey : id,
1413                 filter : { ... },
1414         }
1415 }
1416
1417 */
1418
1419 static char* searchJOIN ( const jsonObject* join_hash, osrfHash* leftmeta ) {
1420
1421         const jsonObject* working_hash;
1422         jsonObject* freeable_hash = NULL;
1423
1424         if (join_hash->type == JSON_STRING) {
1425                 // create a wrapper around a copy of the original
1426                 char* _tmp = jsonObjectToSimpleString( join_hash );
1427                 freeable_hash = jsonParseString("{}");
1428                 jsonObjectSetKey(freeable_hash, _tmp, NULL);
1429                 free(_tmp);
1430                 working_hash = freeable_hash;
1431         }
1432         else
1433                 working_hash = join_hash;
1434
1435         growing_buffer* join_buf = buffer_init(128);
1436         char* leftclass = osrfHashGet(leftmeta, "classname");
1437
1438         jsonObjectNode* snode = NULL;
1439         jsonObjectIterator* search_itr = jsonNewObjectIterator( working_hash );
1440         if(freeable_hash)
1441                 jsonObjectFree(freeable_hash);
1442
1443         while ( (snode = jsonObjectIteratorNext( search_itr )) ) {
1444                 osrfHash* idlClass = osrfHashGet( oilsIDL(), snode->key );
1445
1446                 char* class = osrfHashGet(idlClass, "classname");
1447
1448                 char* fkey = jsonObjectToSimpleString( jsonObjectGetKeyConst( snode->item, "fkey" ) );
1449                 char* field = jsonObjectToSimpleString( jsonObjectGetKeyConst( snode->item, "field" ) );
1450
1451                 if (field && !fkey) {
1452                         fkey = (char*)oilsIDLFindPath("/%s/links/%s/key", class, field);
1453                         if (!fkey) {
1454                                 osrfLogError(
1455                                         OSRF_LOG_MARK,
1456                                         "%s: JOIN failed.  No link defined from %s.%s to %s",
1457                                         MODULENAME,
1458                                         class,
1459                                         field,
1460                                         leftclass
1461                                 );
1462                                 buffer_free(join_buf);
1463                                 free(field);
1464                                 return NULL;
1465                         }
1466                         fkey = strdup( fkey );
1467
1468                 } else if (!field && fkey) {
1469                         field = (char*)oilsIDLFindPath("/%s/links/%s/key", leftclass, fkey );
1470                         if (!field) {
1471                                 osrfLogError(
1472                                         OSRF_LOG_MARK,
1473                                         "%s: JOIN failed.  No link defined from %s.%s to %s",
1474                                         MODULENAME,
1475                                         leftclass,
1476                                         fkey,
1477                                         class
1478                                 );
1479                                 buffer_free(join_buf);
1480                                 free(fkey);
1481                                 return NULL;
1482                         }
1483                         field = strdup( field );
1484
1485                 } else if (!field && !fkey) {
1486                         osrfHash* _links = oilsIDLFindPath("/%s/links", leftclass);
1487
1488                         int i = 0;
1489                         osrfStringArray* keys = osrfHashKeys( _links );
1490                         while ( (fkey = osrfStringArrayGetString(keys, i++)) ) {
1491                                 fkey = strdup(osrfStringArrayGetString(keys, i++));
1492                                 if ( !strcmp( (char*)oilsIDLFindPath("/%s/links/%s/class", leftclass, fkey), class) ) {
1493                                         field = strdup( (char*)oilsIDLFindPath("/%s/links/%s/key", leftclass, fkey) );
1494                                         break;
1495                                 } else {
1496                                         free(fkey);
1497                                 }
1498                         }
1499                         osrfStringArrayFree(keys);
1500
1501                         if (!field && !fkey) {
1502                                 _links = oilsIDLFindPath("/%s/links", class);
1503
1504                                 i = 0;
1505                                 keys = osrfHashKeys( _links );
1506                                 while ( (field = osrfStringArrayGetString(keys, i++)) ) {
1507                                         field = strdup(osrfStringArrayGetString(keys, i++));
1508                                         if ( !strcmp( (char*)oilsIDLFindPath("/%s/links/%s/class", class, field), class) ) {
1509                                                 fkey = strdup( (char*)oilsIDLFindPath("/%s/links/%s/key", class, field) );
1510                                                 break;
1511                                         } else {
1512                                                 free(field);
1513                                         }
1514                                 }
1515                                 osrfStringArrayFree(keys);
1516                         }
1517
1518                         if (!field && !fkey) {
1519                                 osrfLogError(
1520                                         OSRF_LOG_MARK,
1521                                         "%s: JOIN failed.  No link defined between %s and %s",
1522                                         MODULENAME,
1523                                         leftclass,
1524                                         class
1525                                 );
1526                                 buffer_free(join_buf);
1527                                 return NULL;
1528                         }
1529
1530                 }
1531
1532                 char* type = jsonObjectToSimpleString( jsonObjectGetKeyConst( snode->item, "type" ) );
1533                 if (type) {
1534                         if ( !strcasecmp(type,"left") ) {
1535                                 buffer_add(join_buf, " LEFT JOIN");
1536                         } else if ( !strcasecmp(type,"right") ) {
1537                                 buffer_add(join_buf, " RIGHT JOIN");
1538                         } else if ( !strcasecmp(type,"full") ) {
1539                                 buffer_add(join_buf, " FULL JOIN");
1540                         } else {
1541                                 buffer_add(join_buf, " INNER JOIN");
1542                         }
1543                 } else {
1544                         buffer_add(join_buf, " INNER JOIN");
1545                 }
1546                 free(type);
1547
1548                 char* table = getSourceDefinition(idlClass);
1549                 buffer_fadd(join_buf, " %s AS \"%s\" ON ( \"%s\".%s = \"%s\".%s", table, class, class, field, leftclass, fkey);
1550                 free(table);
1551
1552                 const jsonObject* filter = jsonObjectGetKeyConst( snode->item, "filter" );
1553                 if (filter) {
1554                         char* filter_op = jsonObjectToSimpleString( jsonObjectGetKeyConst( snode->item, "filter_op" ) );
1555                         if (filter_op) {
1556                                 if (!strcasecmp("or",filter_op)) {
1557                                         buffer_add( join_buf, " OR " );
1558                                 } else {
1559                                         buffer_add( join_buf, " AND " );
1560                                 }
1561                         } else {
1562                                 buffer_add( join_buf, " AND " );
1563                         }
1564
1565                         char* jpred = searchWHERE( filter, idlClass, AND_OP_JOIN );
1566                         buffer_fadd( join_buf, " %s", jpred );
1567                         free(jpred);
1568                         free(filter_op);
1569                 }
1570
1571                 buffer_add(join_buf, " ) ");
1572
1573                 const jsonObject* join_filter = jsonObjectGetKeyConst( snode->item, "join" );
1574                 if (join_filter) {
1575                         char* jpred = searchJOIN( join_filter, idlClass );
1576                         buffer_fadd( join_buf, " %s", jpred );
1577                         free(jpred);
1578                 }
1579
1580                 free(fkey);
1581                 free(field);
1582         }
1583
1584     jsonObjectIteratorFree(search_itr);
1585
1586         return buffer_release(join_buf);
1587 }
1588
1589 /*
1590
1591 { +class : { -or|-and : { field : { op : value }, ... } ... }, ... }
1592 { +class : { -or|-and : [ { field : { op : value }, ... }, ...] ... }, ... }
1593 [ { +class : { -or|-and : [ { field : { op : value }, ... }, ...] ... }, ... }, ... ]
1594
1595 */
1596 static char* searchWHERE ( const jsonObject* search_hash, osrfHash* meta, int opjoin_type ) {
1597
1598         growing_buffer* sql_buf = buffer_init(128);
1599
1600         jsonObjectNode* node = NULL;
1601
1602     int first = 1;
1603     if ( search_hash->type == JSON_ARRAY ) {
1604         jsonObjectIterator* search_itr = jsonNewObjectIterator( search_hash );
1605         while ( (node = jsonObjectIteratorNext( search_itr )) ) {
1606             if (first) {
1607                 first = 0;
1608             } else {
1609                 if (opjoin_type == OR_OP_JOIN) buffer_add(sql_buf, " OR ");
1610                 else buffer_add(sql_buf, " AND ");
1611             }
1612
1613             char* subpred = searchWHERE( node->item, meta, opjoin_type );
1614             buffer_fadd(sql_buf, "( %s )", subpred);
1615             free(subpred);
1616         }
1617         jsonObjectIteratorFree(search_itr);
1618
1619     } else if ( search_hash->type == JSON_HASH ) {
1620         jsonObjectIterator* search_itr = jsonNewObjectIterator( search_hash );
1621         while ( (node = jsonObjectIteratorNext( search_itr )) ) {
1622
1623             if (first) {
1624                 first = 0;
1625             } else {
1626                 if (opjoin_type == OR_OP_JOIN) buffer_add(sql_buf, " OR ");
1627                 else buffer_add(sql_buf, " AND ");
1628             }
1629
1630             if ( !strncmp("+",node->key,1) ) {
1631                 if ( node->item->type == JSON_STRING ) {
1632                     char* subpred = jsonObjectToSimpleString( node->item );
1633                     buffer_fadd(sql_buf, " \"%s\".%s ", node->key + 1, subpred);
1634                     free(subpred);
1635                 } else {
1636                     char* subpred = searchWHERE( node->item, osrfHashGet( oilsIDL(), node->key + 1 ), AND_OP_JOIN );
1637                     buffer_fadd(sql_buf, "( %s )", subpred);
1638                     free(subpred);
1639                 }
1640             } else if ( !strcasecmp("-or",node->key) ) {
1641                 char* subpred = searchWHERE( node->item, meta, OR_OP_JOIN );
1642                 buffer_fadd(sql_buf, "( %s )", subpred);
1643                 free(subpred);
1644             } else if ( !strcasecmp("-and",node->key) ) {
1645                 char* subpred = searchWHERE( node->item, meta, AND_OP_JOIN );
1646                 buffer_fadd(sql_buf, "( %s )", subpred);
1647                 free(subpred);
1648             } else {
1649
1650                 char* class = osrfHashGet(meta, "classname");
1651                 osrfHash* fields = osrfHashGet(meta, "fields");
1652                 osrfHash* field = osrfHashGet( fields, node->key );
1653
1654
1655                 if (!field) {
1656                     char* table = getSourceDefinition(meta);
1657                     osrfLogError(
1658                         OSRF_LOG_MARK,
1659                         "%s: Attempt to reference non-existant column %s on %s (%s)",
1660                         MODULENAME,
1661                         node->key,
1662                         table,
1663                         class
1664                     );
1665                     buffer_free(sql_buf);
1666                     free(table);
1667                     return NULL;
1668                 }
1669
1670                 char* subpred = searchPredicate( class, field, node->item );
1671                 buffer_add( sql_buf, subpred );
1672                 free(subpred);
1673             }
1674         }
1675             jsonObjectIteratorFree(search_itr);
1676
1677     } else {
1678         // ERROR ... only hash and array allowed at this level
1679         char* predicate_string = jsonObjectToJSON( search_hash );
1680         osrfLogError(
1681             OSRF_LOG_MARK,
1682             "%s: Invalid predicate structure: %s",
1683             MODULENAME,
1684             predicate_string
1685         );
1686         buffer_free(sql_buf);
1687         free(predicate_string);
1688         return NULL;
1689     }
1690
1691
1692         return buffer_release(sql_buf);
1693 }
1694
1695 static char* SELECT (
1696                 /* method context */ osrfMethodContext* ctx,
1697
1698                 /* SELECT   */ jsonObject* selhash,
1699                 /* FROM     */ jsonObject* join_hash,
1700                 /* WHERE    */ jsonObject* search_hash,
1701                 /* HAVING   */ jsonObject* having_hash,
1702                 /* ORDER BY */ jsonObject* order_hash,
1703                 /* LIMIT    */ jsonObject* limit,
1704                 /* OFFSET   */ jsonObject* offset,
1705                 /* flags    */ int flags
1706 ) {
1707         const char* locale = osrf_message_get_last_locale();
1708
1709         // in case we don't get a select list
1710         jsonObject* defaultselhash = NULL;
1711
1712         // general tmp objects
1713         const jsonObject* tmp_const;
1714         jsonObject* _tmp = NULL;
1715         jsonObjectNode* selclass = NULL;
1716         jsonObjectNode* selfield = NULL;
1717         jsonObjectNode* snode = NULL;
1718         jsonObjectNode* onode = NULL;
1719         jsonObject* found = NULL;
1720
1721         char* string = NULL;
1722         int first = 1;
1723         int gfirst = 1;
1724         //int hfirst = 1;
1725
1726         // the core search class
1727         char* core_class = NULL;
1728
1729         // metadata about the core search class
1730         osrfHash* core_meta = NULL;
1731         osrfHash* core_fields = NULL;
1732         osrfHash* idlClass = NULL;
1733
1734         // punt if there's no core class
1735         if (!join_hash || ( join_hash->type == JSON_HASH && !join_hash->size ))
1736                 return NULL;
1737
1738         // get the core class -- the only key of the top level FROM clause, or a string
1739         if (join_hash->type == JSON_HASH) {
1740                 jsonObjectIterator* tmp_itr = jsonNewObjectIterator( join_hash );
1741                 snode = jsonObjectIteratorNext( tmp_itr );
1742
1743                 core_class = strdup( snode->key );
1744                 join_hash = snode->item;
1745
1746                 jsonObjectIteratorFree( tmp_itr );
1747                 snode = NULL;
1748
1749         } else if (join_hash->type == JSON_STRING) {
1750                 core_class = jsonObjectToSimpleString( join_hash );
1751                 join_hash = NULL;
1752         }
1753
1754         // punt if we don't know about the core class
1755         if (!(core_meta = osrfHashGet( oilsIDL(), core_class ))) {
1756                 free(core_class);
1757                 return NULL;
1758         }
1759
1760         // if the select list is empty, or the core class field list is '*',
1761         // build the default select list ...
1762         if (!selhash) {
1763                 selhash = defaultselhash = jsonParseString( "{}" );
1764                 jsonObjectSetKey( selhash, core_class, jsonParseString( "[]" ) );
1765         } else if ( (tmp_const = jsonObjectGetKeyConst( selhash, core_class )) && tmp_const->type == JSON_STRING ) {
1766                 char* _x = jsonObjectToSimpleString( tmp_const );
1767                 if (!strncmp( "*", _x, 1 )) {
1768                         jsonObjectRemoveKey( selhash, core_class );
1769                         jsonObjectSetKey( selhash, core_class, jsonParseString( "[]" ) );
1770                 }
1771                 free(_x);
1772         }
1773
1774         // the query buffer
1775         growing_buffer* sql_buf = buffer_init(128);
1776
1777         // temp buffer for the SELECT list
1778         growing_buffer* select_buf = buffer_init(128);
1779         growing_buffer* order_buf = buffer_init(128);
1780         growing_buffer* group_buf = buffer_init(128);
1781         growing_buffer* having_buf = buffer_init(128);
1782
1783         core_fields = osrfHashGet(core_meta, "fields");
1784
1785         // ... and if we /are/ building the default list, do that
1786         if ( (_tmp = jsonObjectGetKey(selhash,core_class)) && !_tmp->size ) {
1787
1788                 int i = 0;
1789                 char* field;
1790
1791                 osrfStringArray* keys = osrfHashKeys( core_fields );
1792                 while ( (field = osrfStringArrayGetString(keys, i++)) ) {
1793                         if ( strncasecmp( "true", osrfHashGet( osrfHashGet( core_fields, field ), "virtual" ), 4 ) )
1794                                 jsonObjectPush( _tmp, jsonNewObject( field ) );
1795                 }
1796                 osrfStringArrayFree(keys);
1797         }
1798
1799         // Now we build the actual select list
1800         int sel_pos = 1;
1801         jsonObject* is_agg = jsonObjectFindPath(selhash, "//aggregate");
1802         first = 1;
1803         gfirst = 1;
1804         jsonObjectIterator* selclass_itr = jsonNewObjectIterator( selhash );
1805         while ( (selclass = jsonObjectIteratorNext( selclass_itr )) ) {
1806
1807                 // round trip through the idl, just to be safe
1808                 idlClass = osrfHashGet( oilsIDL(), selclass->key );
1809                 if (!idlClass) continue;
1810                 char* cname = osrfHashGet(idlClass, "classname");
1811
1812                 // make sure the target relation is in the join tree
1813                 if (strcmp(core_class,cname)) {
1814                         if (!join_hash) continue;
1815
1816                         if (join_hash->type == JSON_STRING) {
1817                                 string = jsonObjectToSimpleString(join_hash);
1818                                 found = strcmp(string,cname) ? NULL : jsonParseString("{\"1\":\"1\"}");
1819                                 free(string);
1820                         } else {
1821                                 found = jsonObjectFindPath(join_hash, "//%s", cname);
1822                         }
1823
1824                         if (!found->size) {
1825                                 jsonObjectFree(found);
1826                                 continue;
1827                         }
1828
1829                         jsonObjectFree(found);
1830                 }
1831
1832                 // stitch together the column list ...
1833                 jsonObjectIterator* select_itr = jsonNewObjectIterator( selclass->item );
1834                 while ( (selfield = jsonObjectIteratorNext( select_itr )) ) {
1835
1836                         char* __column = NULL;
1837                         char* __alias = NULL;
1838
1839                         // ... if it's a sstring, just toss it on the pile
1840                         if (selfield->item->type == JSON_STRING) {
1841
1842                                 // again, just to be safe
1843                                 char* _requested_col = jsonObjectToSimpleString(selfield->item);
1844                                 osrfHash* field = osrfHashGet( osrfHashGet( idlClass, "fields" ), _requested_col );
1845                                 free(_requested_col);
1846
1847                                 if (!field) continue;
1848                                 __column = strdup(osrfHashGet(field, "name"));
1849
1850                                 if (first) {
1851                                         first = 0;
1852                                 } else {
1853                                         buffer_add(select_buf, ",");
1854                                 }
1855
1856                 if (locale) {
1857                         char* i18n = osrfHashGet(field, "i18n");
1858                                 if (flags & DISABLE_I18N)
1859                         i18n = NULL;
1860
1861                         if ( i18n && !strncasecmp("true", i18n, 4)) {
1862                             char* pkey = osrfHashGet(idlClass, "primarykey");
1863                             char* tname = osrfHashGet(idlClass, "tablename");
1864
1865                         buffer_fadd(select_buf, " oils_i18n_xlate('%s', '%s', '%s', \"%s\".%s::TEXT, '%s') AS \"%s\"", tname, __column, pkey, cname, pkey, locale, __column);
1866                     } else {
1867                                         buffer_fadd(select_buf, " \"%s\".%s AS \"%s\"", cname, __column, __column);
1868                     }
1869                 } else {
1870                                     buffer_fadd(select_buf, " \"%s\".%s AS \"%s\"", cname, __column, __column);
1871                 }
1872
1873                         // ... but it could be an object, in which case we check for a Field Transform
1874                         } else {
1875
1876                                 __column = jsonObjectToSimpleString( jsonObjectGetKeyConst( selfield->item, "column" ) );
1877
1878                                 // again, just to be safe
1879                                 osrfHash* field = osrfHashGet( osrfHashGet( idlClass, "fields" ), __column );
1880                                 if (!field) continue;
1881                                 const char* fname = osrfHashGet(field, "name");
1882
1883                                 if (first) {
1884                                         first = 0;
1885                                 } else {
1886                                         buffer_add(select_buf, ",");
1887                                 }
1888
1889                                 if ((tmp_const = jsonObjectGetKeyConst( selfield->item, "alias" ))) {
1890                                         __alias = jsonObjectToSimpleString( tmp_const );
1891                                 } else {
1892                                         __alias = strdup(__column);
1893                                 }
1894
1895                                 if (jsonObjectGetKeyConst( selfield->item, "transform" )) {
1896                                         free(__column);
1897                                         __column = searchFieldTransform(cname, field, selfield->item);
1898                                         buffer_fadd(select_buf, " %s AS \"%s\"", __column, __alias);
1899                                 } else {
1900                     if (locale) {
1901                                 char* i18n = osrfHashGet(field, "i18n");
1902                                     if (flags & DISABLE_I18N)
1903                             i18n = NULL;
1904
1905                                 if ( i18n && !strncasecmp("true", i18n, 4)) {
1906                                 char* pkey = osrfHashGet(idlClass, "primarykey");
1907                                 char* tname = osrfHashGet(idlClass, "tablename");
1908
1909                             buffer_fadd(select_buf, " oils_i18n_xlate('%s', '%s', '%s', \"%s\".%s::TEXT, '%s') AS \"%s\"", tname, fname, pkey, cname, pkey, locale, __alias);
1910                         } else {
1911                                                 buffer_fadd(select_buf, " \"%s\".%s AS \"%s\"", cname, fname, __alias);
1912                         }
1913                     } else {
1914                                             buffer_fadd(select_buf, " \"%s\".%s AS \"%s\"", cname, fname, __alias);
1915                     }
1916                                 }
1917                         }
1918
1919                         if (is_agg->size || (flags & SELECT_DISTINCT)) {
1920
1921                                 if (!jsonBoolIsTrue( jsonObjectGetKey( selfield->item, "aggregate" ) )) {
1922                                         if (gfirst) {
1923                                                 gfirst = 0;
1924                                         } else {
1925                                                 buffer_add(group_buf, ",");
1926                                         }
1927
1928                                         buffer_fadd(group_buf, " %d", sel_pos);
1929                                 /*
1930                                 } else if (is_agg = jsonObjectGetKey( selfield->item, "having" )) {
1931                                         if (gfirst) {
1932                                                 gfirst = 0;
1933                                         } else {
1934                                                 buffer_add(group_buf, ",");
1935                                         }
1936
1937                                         __column = searchFieldTransform(cname, field, selfield->item);
1938                                         buffer_fadd(group_buf, " %s", __column);
1939                                         __column = searchFieldTransform(cname, field, selfield->item);
1940                                 */
1941                                 }
1942                         }
1943
1944                         if (__column) free(__column);
1945                         if (__alias) free(__alias);
1946
1947                         sel_pos++;
1948                 }
1949
1950         // jsonObjectIteratorFree(select_itr);
1951         }
1952
1953     // jsonObjectIteratorFree(selclass_itr);
1954
1955         if (is_agg) jsonObjectFree(is_agg);
1956
1957         char* col_list = buffer_release(select_buf);
1958         char* table = getSourceDefinition(core_meta);
1959
1960         // Put it all together
1961         buffer_fadd(sql_buf, "SELECT %s FROM %s AS \"%s\" ", col_list, table, core_class );
1962         free(col_list);
1963         free(table);
1964
1965         // Now, walk the join tree and add that clause
1966         if ( join_hash ) {
1967                 char* join_clause = searchJOIN( join_hash, core_meta );
1968                 buffer_add(sql_buf, join_clause);
1969                 free(join_clause);
1970         }
1971
1972         if ( search_hash ) {
1973                 buffer_add(sql_buf, " WHERE ");
1974
1975                 // and it's on the the WHERE clause
1976                 char* pred = searchWHERE( search_hash, core_meta, AND_OP_JOIN );
1977
1978                 if (!pred) {
1979                         osrfAppSessionStatus(
1980                                 ctx->session,
1981                                 OSRF_STATUS_INTERNALSERVERERROR,
1982                                 "osrfMethodException",
1983                                 ctx->request,
1984                                 "Severe query error in WHERE predicate -- see error log for more details"
1985                         );
1986                         free(core_class);
1987                         buffer_free(having_buf);
1988                         buffer_free(group_buf);
1989                         buffer_free(order_buf);
1990                         buffer_free(sql_buf);
1991                         if (defaultselhash) jsonObjectFree(defaultselhash);
1992                         return NULL;
1993                 } else {
1994                         buffer_add(sql_buf, pred);
1995                         free(pred);
1996                 }
1997     }
1998
1999         if ( having_hash ) {
2000                 buffer_add(sql_buf, " HAVING ");
2001
2002                 // and it's on the the WHERE clause
2003                 char* pred = searchWHERE( having_hash, core_meta, AND_OP_JOIN );
2004
2005                 if (!pred) {
2006                         osrfAppSessionStatus(
2007                                 ctx->session,
2008                                 OSRF_STATUS_INTERNALSERVERERROR,
2009                                 "osrfMethodException",
2010                                 ctx->request,
2011                                 "Severe query error in HAVING predicate -- see error log for more details"
2012                         );
2013                         free(core_class);
2014                         buffer_free(having_buf);
2015                         buffer_free(group_buf);
2016                         buffer_free(order_buf);
2017                         buffer_free(sql_buf);
2018                         if (defaultselhash) jsonObjectFree(defaultselhash);
2019                         return NULL;
2020                 } else {
2021                         buffer_add(sql_buf, pred);
2022                         free(pred);
2023                 }
2024         }
2025
2026         first = 1;
2027         jsonObjectIterator* class_itr = jsonNewObjectIterator( order_hash );
2028         while ( (snode = jsonObjectIteratorNext( class_itr )) ) {
2029
2030                 if (!jsonObjectGetKeyConst(selhash,snode->key))
2031                         continue;
2032
2033                 if ( snode->item->type == JSON_HASH ) {
2034
2035                     jsonObjectIterator* order_itr = jsonNewObjectIterator( snode->item );
2036                         while ( (onode = jsonObjectIteratorNext( order_itr )) ) {
2037
2038                                 if (!oilsIDLFindPath( "/%s/fields/%s", snode->key, onode->key ))
2039                                         continue;
2040
2041                                 char* direction = NULL;
2042                                 if ( onode->item->type == JSON_HASH ) {
2043                                         if ( jsonObjectGetKeyConst( onode->item, "transform" ) ) {
2044                                                 string = searchFieldTransform(
2045                                                         snode->key,
2046                                                         oilsIDLFindPath( "/%s/fields/%s", snode->key, onode->key ),
2047                                                         onode->item
2048                                                 );
2049                                         } else {
2050                                                 growing_buffer* field_buf = buffer_init(16);
2051                                                 buffer_fadd(field_buf, "\"%s\".%s", snode->key, onode->key);
2052                                                 string = buffer_release(field_buf);
2053                                         }
2054
2055                                         if ( (tmp_const = jsonObjectGetKeyConst( onode->item, "direction" )) ) {
2056                                                 direction = jsonObjectToSimpleString(tmp_const);
2057                                                 if (!strncasecmp(direction, "d", 1)) {
2058                                                         free(direction);
2059                                                         direction = " DESC";
2060                                                 } else {
2061                                                         free(direction);
2062                                                         direction = " ASC";
2063                                                 }
2064                                         }
2065
2066                                 } else {
2067                                         string = strdup(onode->key);
2068                                         direction = jsonObjectToSimpleString(onode->item);
2069                                         if (!strncasecmp(direction, "d", 1)) {
2070                                                 free(direction);
2071                                                 direction = " DESC";
2072                                         } else {
2073                                                 free(direction);
2074                                                 direction = " ASC";
2075                                         }
2076                                 }
2077
2078                                 if (first) {
2079                                         first = 0;
2080                                 } else {
2081                                         buffer_add(order_buf, ", ");
2082                                 }
2083
2084                                 buffer_add(order_buf, string);
2085                                 free(string);
2086
2087                                 if (direction) {
2088                                         buffer_add(order_buf, direction);
2089                                 }
2090
2091                         }
2092             // jsonObjectIteratorFree(order_itr);
2093
2094                 } else if ( snode->item->type == JSON_ARRAY ) {
2095
2096                     jsonObjectIterator* order_itr = jsonNewObjectIterator( snode->item );
2097                         while ( (onode = jsonObjectIteratorNext( order_itr )) ) {
2098
2099                                 char* _f = jsonObjectToSimpleString( onode->item );
2100
2101                                 if (!oilsIDLFindPath( "/%s/fields/%s", snode->key, _f))
2102                                         continue;
2103
2104                                 if (first) {
2105                                         first = 0;
2106                                 } else {
2107                                         buffer_add(order_buf, ", ");
2108                                 }
2109
2110                                 buffer_add(order_buf, _f);
2111                                 free(_f);
2112
2113                         }
2114             // jsonObjectIteratorFree(order_itr);
2115
2116
2117                 // IT'S THE OOOOOOOOOOOLD STYLE!
2118                 } else {
2119                         osrfLogError(OSRF_LOG_MARK, "%s: Possible SQL injection attempt; direct order by is not allowed", MODULENAME);
2120                         osrfAppSessionStatus(
2121                                 ctx->session,
2122                                 OSRF_STATUS_INTERNALSERVERERROR,
2123                                 "osrfMethodException",
2124                                 ctx->request,
2125                                 "Severe query error -- see error log for more details"
2126                         );
2127
2128                         free(core_class);
2129                         buffer_free(having_buf);
2130                         buffer_free(group_buf);
2131                         buffer_free(order_buf);
2132                         buffer_free(sql_buf);
2133                         if (defaultselhash) jsonObjectFree(defaultselhash);
2134                         return NULL;
2135                 }
2136
2137         }
2138
2139     // jsonObjectIteratorFree(class_itr);
2140
2141         string = buffer_release(group_buf);
2142
2143         if (strlen(string)) {
2144                 buffer_fadd(
2145                         sql_buf,
2146                         " GROUP BY %s",
2147                         string
2148                 );
2149         }
2150
2151         free(string);
2152
2153         string = buffer_release(having_buf);
2154
2155         if (strlen(string)) {
2156                 buffer_fadd(
2157                         sql_buf,
2158                         " HAVING %s",
2159                         string
2160                 );
2161         }
2162
2163         free(string);
2164
2165         string = buffer_release(order_buf);
2166
2167         if (strlen(string)) {
2168                 buffer_fadd(
2169                         sql_buf,
2170                         " ORDER BY %s",
2171                         string
2172                 );
2173         }
2174
2175         free(string);
2176
2177         if ( limit ){
2178                 string = jsonObjectToSimpleString(limit);
2179                 buffer_fadd( sql_buf, " LIMIT %d", atoi(string) );
2180                 free(string);
2181         }
2182
2183         if (offset) {
2184                 string = jsonObjectToSimpleString(offset);
2185                 buffer_fadd( sql_buf, " OFFSET %d", atoi(string) );
2186                 free(string);
2187         }
2188
2189         buffer_add(sql_buf, ";");
2190
2191         free(core_class);
2192         if (defaultselhash) jsonObjectFree(defaultselhash);
2193
2194         return buffer_release(sql_buf);
2195
2196 }
2197
2198 static char* buildSELECT ( jsonObject* search_hash, jsonObject* order_hash, osrfHash* meta, osrfMethodContext* ctx ) {
2199
2200         const char* locale = osrf_message_get_last_locale();
2201
2202         osrfHash* fields = osrfHashGet(meta, "fields");
2203         char* core_class = osrfHashGet(meta, "classname");
2204
2205         const jsonObject* join_hash = jsonObjectGetKeyConst( order_hash, "join" );
2206
2207         jsonObjectNode* node = NULL;
2208         jsonObjectNode* snode = NULL;
2209         jsonObjectNode* onode = NULL;
2210         const jsonObject* _tmp = NULL;
2211         jsonObject* selhash = NULL;
2212         jsonObject* defaultselhash = NULL;
2213
2214         growing_buffer* sql_buf = buffer_init(128);
2215         growing_buffer* select_buf = buffer_init(128);
2216
2217         if ( !(selhash = jsonObjectGetKey( order_hash, "select" )) ) {
2218                 defaultselhash = jsonParseString( "{}" );
2219                 selhash = defaultselhash;
2220         }
2221
2222         if ( !jsonObjectGetKeyConst(selhash,core_class) ) {
2223                 jsonObjectSetKey( selhash, core_class, jsonParseString( "[]" ) );
2224                 jsonObject* flist = jsonObjectGetKey( selhash, core_class );
2225
2226                 int i = 0;
2227                 char* field;
2228
2229                 osrfStringArray* keys = osrfHashKeys( fields );
2230                 while ( (field = osrfStringArrayGetString(keys, i++)) ) {
2231                         if ( strcasecmp( "true", osrfHashGet( osrfHashGet( fields, field ), "virtual" ) ) )
2232                                 jsonObjectPush( flist, jsonNewObject( field ) );
2233                 }
2234                 osrfStringArrayFree(keys);
2235         }
2236
2237         int first = 1;
2238         jsonObjectIterator* class_itr = jsonNewObjectIterator( selhash );
2239         while ( (snode = jsonObjectIteratorNext( class_itr )) ) {
2240
2241                 osrfHash* idlClass = osrfHashGet( oilsIDL(), snode->key );
2242                 if (!idlClass) continue;
2243                 char* cname = osrfHashGet(idlClass, "classname");
2244
2245                 if (strcmp(core_class,snode->key)) {
2246                         if (!join_hash) continue;
2247
2248                         jsonObject* found =  jsonObjectFindPath(join_hash, "//%s", snode->key);
2249                         if (!found->size) {
2250                                 jsonObjectFree(found);
2251                                 continue;
2252                         }
2253
2254                         jsonObjectFree(found);
2255                 }
2256
2257                 jsonObjectIterator* select_itr = jsonNewObjectIterator( snode->item );
2258                 while ( (node = jsonObjectIteratorNext( select_itr )) ) {
2259                         char* item_str = jsonObjectToSimpleString(node->item);
2260                         osrfHash* field = osrfHashGet( osrfHashGet( idlClass, "fields" ), item_str );
2261                         free(item_str);
2262                         char* fname = osrfHashGet(field, "name");
2263
2264                         if (!field) continue;
2265
2266                         if (first) {
2267                                 first = 0;
2268                         } else {
2269                                 buffer_add(select_buf, ",");
2270                         }
2271
2272             if (locale) {
2273                         char* i18n = osrfHashGet(field, "i18n");
2274                     if (jsonBoolIsTrue(jsonObjectGetKey( order_hash, "no_i18n" )))
2275                     i18n = NULL;
2276
2277                         if ( i18n && !strncasecmp("true", i18n, 4)) {
2278                         char* pkey = osrfHashGet(idlClass, "primarykey");
2279                         char* tname = osrfHashGet(idlClass, "tablename");
2280
2281                     buffer_fadd(select_buf, " oils_i18n_xlate('%s', '%s', '%s', \"%s\".%s::TEXT, '%s') AS \"%s\"", tname, fname, pkey, cname, pkey, locale, fname);
2282                 } else {
2283                                 buffer_fadd(select_buf, " \"%s\".%s", cname, fname);
2284                 }
2285             } else {
2286                             buffer_fadd(select_buf, " \"%s\".%s", cname, fname);
2287             }
2288                 }
2289
2290         jsonObjectIteratorFree(select_itr);
2291         }
2292
2293     jsonObjectIteratorFree(class_itr);
2294
2295         char* col_list = buffer_release(select_buf);
2296         char* table = getSourceDefinition(meta);
2297
2298         buffer_fadd(sql_buf, "SELECT %s FROM %s AS \"%s\"", col_list, table, core_class );
2299         free(col_list);
2300         free(table);
2301
2302         if ( join_hash ) {
2303                 char* join_clause = searchJOIN( join_hash, meta );
2304                 buffer_fadd(sql_buf, " %s", join_clause);
2305                 free(join_clause);
2306         }
2307
2308         char* tmpsql = buffer_data(sql_buf);
2309         osrfLogDebug(OSRF_LOG_MARK, "%s pre-predicate SQL =  %s", MODULENAME, tmpsql);
2310         free(tmpsql);
2311
2312         buffer_add(sql_buf, " WHERE ");
2313
2314         char* pred = searchWHERE( search_hash, meta, AND_OP_JOIN );
2315         if (!pred) {
2316                 osrfAppSessionStatus(
2317                         ctx->session,
2318                         OSRF_STATUS_INTERNALSERVERERROR,
2319                                 "osrfMethodException",
2320                                 ctx->request,
2321                                 "Severe query error -- see error log for more details"
2322                         );
2323                 buffer_free(sql_buf);
2324                 if(defaultselhash) jsonObjectFree(defaultselhash);
2325                 return NULL;
2326         } else {
2327                 buffer_add(sql_buf, pred);
2328                 free(pred);
2329         }
2330
2331         if (order_hash) {
2332                 char* string = NULL;
2333                 if ( (_tmp = jsonObjectGetKeyConst( order_hash, "order_by" )) ){
2334
2335                         growing_buffer* order_buf = buffer_init(128);
2336
2337                         first = 1;
2338                         jsonObjectIterator* class_itr = jsonNewObjectIterator( _tmp );
2339                         while ( (snode = jsonObjectIteratorNext( class_itr )) ) {
2340
2341                                 if (!jsonObjectGetKeyConst(selhash,snode->key))
2342                                         continue;
2343
2344                                 if ( snode->item->type == JSON_HASH ) {
2345
2346                                         jsonObjectIterator* order_itr = jsonNewObjectIterator( snode->item );
2347                                         while ( (onode = jsonObjectIteratorNext( order_itr )) ) {
2348
2349                                                 if (!oilsIDLFindPath( "/%s/fields/%s", snode->key, onode->key ))
2350                                                         continue;
2351
2352                                                 char* direction = NULL;
2353                                                 if ( onode->item->type == JSON_HASH ) {
2354                                                         if ( jsonObjectGetKeyConst( onode->item, "transform" ) ) {
2355                                                                 string = searchFieldTransform(
2356                                                                         snode->key,
2357                                                                         oilsIDLFindPath( "/%s/fields/%s", snode->key, onode->key ),
2358                                                                         onode->item
2359                                                                 );
2360                                                         } else {
2361                                                                 growing_buffer* field_buf = buffer_init(16);
2362                                                                 buffer_fadd(field_buf, "\"%s\".%s", snode->key, onode->key);
2363                                                                 string = buffer_release(field_buf);
2364                                                         }
2365
2366                                                         if ( (_tmp = jsonObjectGetKeyConst( onode->item, "direction" )) ) {
2367                                                                 direction = jsonObjectToSimpleString(_tmp);
2368                                                                 if (!strncasecmp(direction, "d", 1)) {
2369                                                                         free(direction);
2370                                                                         direction = " DESC";
2371                                                                 } else {
2372                                                                         free(direction);
2373                                                                         direction = " ASC";
2374                                                                 }
2375                                                         }
2376
2377                                                 } else {
2378                                                         string = strdup(onode->key);
2379                                                         direction = jsonObjectToSimpleString(onode->item);
2380                                                         if (!strncasecmp(direction, "d", 1)) {
2381                                                                 free(direction);
2382                                                                 direction = " DESC";
2383                                                         } else {
2384                                                                 free(direction);
2385                                                                 direction = " ASC";
2386                                                         }
2387                                                 }
2388
2389                                                 if (first) {
2390                                                         first = 0;
2391                                                 } else {
2392                                                         buffer_add(order_buf, ", ");
2393                                                 }
2394
2395                                                 buffer_add(order_buf, string);
2396                                                 free(string);
2397
2398                                                 if (direction) {
2399                                                         buffer_add(order_buf, direction);
2400                                                 }
2401
2402                                         }
2403
2404                     jsonObjectIteratorFree(order_itr);
2405
2406                                 } else {
2407                                         string = jsonObjectToSimpleString(snode->item);
2408                                         buffer_add(order_buf, string);
2409                                         free(string);
2410                                         break;
2411                                 }
2412
2413                         }
2414
2415             jsonObjectIteratorFree(class_itr);
2416
2417                         string = buffer_release(order_buf);
2418
2419                         if (strlen(string)) {
2420                                 buffer_fadd(
2421                                         sql_buf,
2422                                         " ORDER BY %s",
2423                                         string
2424                                 );
2425                         }
2426
2427                         free(string);
2428                 }
2429
2430                 if ( (_tmp = jsonObjectGetKeyConst( order_hash, "limit" )) ){
2431                         string = jsonObjectToSimpleString(_tmp);
2432                         buffer_fadd(
2433                                 sql_buf,
2434                                 " LIMIT %d",
2435                                 atoi(string)
2436                         );
2437                         free(string);
2438                 }
2439
2440                 _tmp = jsonObjectGetKeyConst( order_hash, "offset" );
2441                 if (_tmp) {
2442                         string = jsonObjectToSimpleString(_tmp);
2443                         buffer_fadd(
2444                                 sql_buf,
2445                                 " OFFSET %d",
2446                                 atoi(string)
2447                         );
2448                         free(string);
2449                 }
2450         }
2451
2452         if (defaultselhash) jsonObjectFree(defaultselhash);
2453
2454         buffer_add(sql_buf, ";");
2455         return buffer_release(sql_buf);
2456 }
2457
2458 int doJSONSearch ( osrfMethodContext* ctx ) {
2459         OSRF_METHOD_VERIFY_CONTEXT(ctx);
2460         osrfLogDebug(OSRF_LOG_MARK, "Recieved query request");
2461
2462         int err = 0;
2463
2464         // XXX for now...
2465         dbhandle = writehandle;
2466
2467         jsonObject* hash = jsonObjectGetIndex(ctx->params, 0);
2468
2469     int flags = 0;
2470
2471         if (jsonBoolIsTrue(jsonObjectGetKey( hash, "distinct" )))
2472          flags |= SELECT_DISTINCT;
2473
2474         if ( ((int)jsonObjectGetNumber(jsonObjectGetKey( hash, "distinct" ))) == 1 ) // support 1/0 for perl's sake
2475          flags |= SELECT_DISTINCT;
2476
2477         if (jsonBoolIsTrue(jsonObjectGetKey( hash, "no_i18n" )))
2478          flags |= DISABLE_I18N;
2479
2480         if ( ((int)jsonObjectGetNumber(jsonObjectGetKey( hash, "no_i18n" ))) == 1 ) // support 1/0 for perl's sake
2481          flags |= DISABLE_I18N;
2482
2483         osrfLogDebug(OSRF_LOG_MARK, "Building SQL ...");
2484         char* sql = SELECT(
2485                         ctx,
2486                         jsonObjectGetKey( hash, "select" ),
2487                         jsonObjectGetKey( hash, "from" ),
2488                         jsonObjectGetKey( hash, "where" ),
2489                         jsonObjectGetKey( hash, "having" ),
2490                         jsonObjectGetKey( hash, "order_by" ),
2491                         jsonObjectGetKey( hash, "limit" ),
2492                         jsonObjectGetKey( hash, "offset" ),
2493                         flags
2494         );
2495
2496         if (!sql) {
2497                 err = -1;
2498                 return err;
2499         }
2500
2501         osrfLogDebug(OSRF_LOG_MARK, "%s SQL =  %s", MODULENAME, sql);
2502         dbi_result result = dbi_conn_query(dbhandle, sql);
2503
2504         if(result) {
2505                 osrfLogDebug(OSRF_LOG_MARK, "Query returned with no errors");
2506
2507                 if (dbi_result_first_row(result)) {
2508                         /* JSONify the result */
2509                         osrfLogDebug(OSRF_LOG_MARK, "Query returned at least one row");
2510
2511                         do {
2512                                 jsonObject* return_val = oilsMakeJSONFromResult( result );
2513                                 osrfAppRespond( ctx, return_val );
2514                 jsonObjectFree( return_val );
2515                         } while (dbi_result_next_row(result));
2516
2517                 } else {
2518                         osrfLogDebug(OSRF_LOG_MARK, "%s returned no results for query %s", MODULENAME, sql);
2519                 }
2520
2521                 osrfAppRespondComplete( ctx, NULL );
2522
2523                 /* clean up the query */
2524                 dbi_result_free(result);
2525
2526         } else {
2527                 err = -1;
2528                 osrfLogError(OSRF_LOG_MARK, "%s: Error with query [%s]", MODULENAME, sql);
2529                 osrfAppSessionStatus(
2530                         ctx->session,
2531                         OSRF_STATUS_INTERNALSERVERERROR,
2532                         "osrfMethodException",
2533                         ctx->request,
2534                         "Severe query error -- see error log for more details"
2535                 );
2536         }
2537
2538         free(sql);
2539         return err;
2540 }
2541
2542 static jsonObject* doFieldmapperSearch ( osrfMethodContext* ctx, osrfHash* meta,
2543                 const jsonObject* params, int* err ) {
2544
2545         // XXX for now...
2546         dbhandle = writehandle;
2547
2548         osrfHash* links = osrfHashGet(meta, "links");
2549         osrfHash* fields = osrfHashGet(meta, "fields");
2550         char* core_class = osrfHashGet(meta, "classname");
2551         char* pkey = osrfHashGet(meta, "primarykey");
2552
2553         const jsonObject* _tmp;
2554         jsonObject* obj;
2555         jsonObject* search_hash = jsonObjectGetIndex(params, 0);
2556         jsonObject* order_hash = jsonObjectGetIndex(params, 1);
2557
2558         char* sql = buildSELECT( search_hash, order_hash, meta, ctx );
2559         if (!sql) {
2560                 *err = -1;
2561                 return NULL;
2562         }
2563
2564         osrfLogDebug(OSRF_LOG_MARK, "%s SQL =  %s", MODULENAME, sql);
2565         dbi_result result = dbi_conn_query(dbhandle, sql);
2566
2567         jsonObject* res_list = jsonParseString("[]");
2568         if(result) {
2569                 osrfLogDebug(OSRF_LOG_MARK, "Query returned with no errors");
2570                 osrfHash* dedup = osrfNewHash();
2571
2572                 if (dbi_result_first_row(result)) {
2573                         /* JSONify the result */
2574                         osrfLogDebug(OSRF_LOG_MARK, "Query returned at least one row");
2575                         do {
2576                                 obj = oilsMakeFieldmapperFromResult( result, meta );
2577                                 int pkey_pos = atoi( osrfHashGet( osrfHashGet( fields, pkey ), "array_position" ) );
2578                                 char* pkey_val = jsonObjectToSimpleString( jsonObjectGetIndex( obj, pkey_pos ) );
2579                                 if ( osrfHashGet( dedup, pkey_val ) ) {
2580                                         jsonObjectFree(obj);
2581                                         free(pkey_val);
2582                                 } else {
2583                                         osrfHashSet( dedup, pkey_val, pkey_val );
2584                                         jsonObjectPush(res_list, obj);
2585                                 }
2586                         } while (dbi_result_next_row(result));
2587                 } else {
2588                         osrfLogDebug(OSRF_LOG_MARK, "%s returned no results for query %s", MODULENAME, sql);
2589                 }
2590
2591                 osrfHashFree(dedup);
2592
2593                 /* clean up the query */
2594                 dbi_result_free(result);
2595
2596         } else {
2597                 osrfLogError(OSRF_LOG_MARK, "%s: Error retrieving %s with query [%s]", MODULENAME, osrfHashGet(meta, "fieldmapper"), sql);
2598                 osrfAppSessionStatus(
2599                         ctx->session,
2600                         OSRF_STATUS_INTERNALSERVERERROR,
2601                         "osrfMethodException",
2602                         ctx->request,
2603                         "Severe query error -- see error log for more details"
2604                 );
2605                 *err = -1;
2606                 free(sql);
2607                 jsonObjectFree(res_list);
2608                 return jsonNULL;
2609
2610         }
2611
2612         free(sql);
2613
2614         if (res_list->size && order_hash) {
2615                 _tmp = jsonObjectGetKeyConst( order_hash, "flesh" );
2616                 if (_tmp) {
2617                         int x = (int)jsonObjectGetNumber(_tmp);
2618                         if (x == -1 || x > max_flesh_depth) x = max_flesh_depth;
2619
2620                         const jsonObject* temp_blob;
2621                         if ((temp_blob = jsonObjectGetKeyConst( order_hash, "flesh_fields" )) && x > 0) {
2622
2623                                 jsonObject* flesh_blob = jsonObjectClone( temp_blob );
2624                                 const jsonObject* flesh_fields = jsonObjectGetKeyConst( flesh_blob, core_class );
2625
2626                                 osrfStringArray* link_fields = NULL;
2627
2628                                 if (flesh_fields) {
2629                                         if (flesh_fields->size == 1) {
2630                                                 char* _t = jsonObjectToSimpleString( jsonObjectGetIndex( flesh_fields, 0 ) );
2631                                                 if (!strcmp(_t,"*")) link_fields = osrfHashKeys( links );
2632                                                 free(_t);
2633                                         }
2634
2635                                         if (!link_fields) {
2636                                                 jsonObjectNode* _f;
2637                                                 link_fields = osrfNewStringArray(1);
2638                                                 jsonObjectIterator* _i = jsonNewObjectIterator( flesh_fields );
2639                                                 while ((_f = jsonObjectIteratorNext( _i ))) {
2640                                                         osrfStringArrayAdd( link_fields, jsonObjectToSimpleString( _f->item ) );
2641                                                 }
2642                         jsonObjectIteratorFree(_i);
2643                                         }
2644                                 }
2645
2646                                 jsonObjectNode* cur;
2647                                 jsonObjectIterator* itr = jsonNewObjectIterator( res_list );
2648                                 while ((cur = jsonObjectIteratorNext( itr ))) {
2649
2650                                         int i = 0;
2651                                         char* link_field;
2652
2653                                         while ( (link_field = osrfStringArrayGetString(link_fields, i++)) ) {
2654
2655                                                 osrfLogDebug(OSRF_LOG_MARK, "Starting to flesh %s", link_field);
2656
2657                                                 osrfHash* kid_link = osrfHashGet(links, link_field);
2658                                                 if (!kid_link) continue;
2659
2660                                                 osrfHash* field = osrfHashGet(fields, link_field);
2661                                                 if (!field) continue;
2662
2663                                                 osrfHash* value_field = field;
2664
2665                                                 osrfHash* kid_idl = osrfHashGet(oilsIDL(), osrfHashGet(kid_link, "class"));
2666                                                 if (!kid_idl) continue;
2667
2668                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "has_many" ))) { // has_many
2669                                                         value_field = osrfHashGet( fields, osrfHashGet(meta, "primarykey") );
2670                                                 }
2671
2672                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "might_have" ))) { // might_have
2673                                                         value_field = osrfHashGet( fields, osrfHashGet(meta, "primarykey") );
2674                                                 }
2675
2676                                                 osrfStringArray* link_map = osrfHashGet( kid_link, "map" );
2677
2678                                                 if (link_map->size > 0) {
2679                                                         jsonObject* _kid_key = jsonParseString("[]");
2680                                                         jsonObjectPush(
2681                                                                 _kid_key,
2682                                                                 jsonNewObject( osrfStringArrayGetString( link_map, 0 ) )
2683                                                         );
2684
2685                                                         jsonObjectSetKey(
2686                                                                 flesh_blob,
2687                                                                 osrfHashGet(kid_link, "class"),
2688                                                                 _kid_key
2689                                                         );
2690                                                 };
2691
2692                                                 osrfLogDebug(
2693                                                         OSRF_LOG_MARK,
2694                                                         "Link field: %s, remote class: %s, fkey: %s, reltype: %s",
2695                                                         osrfHashGet(kid_link, "field"),
2696                                                         osrfHashGet(kid_link, "class"),
2697                                                         osrfHashGet(kid_link, "key"),
2698                                                         osrfHashGet(kid_link, "reltype")
2699                                                 );
2700
2701                                                 jsonObject* fake_params = jsonParseString("[]");
2702                                                 jsonObjectPush(fake_params, jsonParseString("{}")); // search hash
2703                                                 jsonObjectPush(fake_params, jsonParseString("{}")); // order/flesh hash
2704
2705                                                 osrfLogDebug(OSRF_LOG_MARK, "Creating dummy params object...");
2706
2707                                                 char* search_key =
2708                                                 jsonObjectToSimpleString(
2709                                                         jsonObjectGetIndex(
2710                                                                 cur->item,
2711                                                                 atoi( osrfHashGet(value_field, "array_position") )
2712                                                         )
2713                                                 );
2714
2715                                                 if (!search_key) {
2716                                                         osrfLogDebug(OSRF_LOG_MARK, "Nothing to search for!");
2717                                                         continue;
2718                                                 }
2719
2720                                                 jsonObjectSetKey(
2721                                                         jsonObjectGetIndex(fake_params, 0),
2722                                                         osrfHashGet(kid_link, "key"),
2723                                                         jsonNewObject( search_key )
2724                                                 );
2725
2726                                                 free(search_key);
2727
2728
2729                                                 jsonObjectSetKey(
2730                                                         jsonObjectGetIndex(fake_params, 1),
2731                                                         "flesh",
2732                                                         jsonNewNumberObject( (double)(x - 1 + link_map->size) )
2733                                                 );
2734
2735                                                 if (flesh_blob)
2736                                                         jsonObjectSetKey( jsonObjectGetIndex(fake_params, 1), "flesh_fields", jsonObjectClone(flesh_blob) );
2737
2738                                                 if (jsonObjectGetKeyConst(order_hash, "order_by")) {
2739                                                         jsonObjectSetKey(
2740                                                                 jsonObjectGetIndex(fake_params, 1),
2741                                                                 "order_by",
2742                                                                 jsonObjectClone(jsonObjectGetKeyConst(order_hash, "order_by"))
2743                                                         );
2744                                                 }
2745
2746                                                 if (jsonObjectGetKeyConst(order_hash, "select")) {
2747                                                         jsonObjectSetKey(
2748                                                                 jsonObjectGetIndex(fake_params, 1),
2749                                                                 "select",
2750                                                                 jsonObjectClone(jsonObjectGetKeyConst(order_hash, "select"))
2751                                                         );
2752                                                 }
2753
2754                                                 jsonObject* kids = doFieldmapperSearch(ctx, kid_idl, fake_params, err);
2755
2756                                                 if(*err) {
2757                                                         jsonObjectFree( fake_params );
2758                                                         osrfStringArrayFree(link_fields);
2759                                                         jsonObjectIteratorFree(itr);
2760                                                         jsonObjectFree(res_list);
2761                                                         jsonObjectFree(flesh_blob);
2762                                                         return jsonNULL;
2763                                                 }
2764
2765                                                 osrfLogDebug(OSRF_LOG_MARK, "Search for %s return %d linked objects", osrfHashGet(kid_link, "class"), kids->size);
2766
2767                                                 jsonObject* X = NULL;
2768                                                 if ( link_map->size > 0 && kids->size > 0 ) {
2769                                                         X = kids;
2770                                                         kids = jsonParseString("[]");
2771
2772                                                         jsonObjectNode* _k_node;
2773                                                         jsonObjectIterator* _k = jsonNewObjectIterator( X );
2774                                                         while ((_k_node = jsonObjectIteratorNext( _k ))) {
2775                                                                 jsonObjectPush(
2776                                                                         kids,
2777                                                                         jsonObjectClone(
2778                                                                                 jsonObjectGetIndex(
2779                                                                                         _k_node->item,
2780                                                                                         (unsigned long)atoi(
2781                                                                                                 osrfHashGet(
2782                                                                                                         osrfHashGet(
2783                                                                                                                 osrfHashGet(
2784                                                                                                                         osrfHashGet(
2785                                                                                                                                 oilsIDL(),
2786                                                                                                                                 osrfHashGet(kid_link, "class")
2787                                                                                                                         ),
2788                                                                                                                         "fields"
2789                                                                                                                 ),
2790                                                                                                                 osrfStringArrayGetString( link_map, 0 )
2791                                                                                                         ),
2792                                                                                                         "array_position"
2793                                                                                                 )
2794                                                                                         )
2795                                                                                 )
2796                                                                         )
2797                                                                 );
2798                                                         }
2799                                                 }
2800
2801                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "has_a" )) || !(strcmp( osrfHashGet(kid_link, "reltype"), "might_have" ))) {
2802                                                         osrfLogDebug(OSRF_LOG_MARK, "Storing fleshed objects in %s", osrfHashGet(kid_link, "field"));
2803                                                         jsonObjectSetIndex(
2804                                                                 cur->item,
2805                                                                 (unsigned long)atoi( osrfHashGet( field, "array_position" ) ),
2806                                                                 jsonObjectClone( jsonObjectGetIndex(kids, 0) )
2807                                                         );
2808                                                 }
2809
2810                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "has_many" ))) { // has_many
2811                                                         osrfLogDebug(OSRF_LOG_MARK, "Storing fleshed objects in %s", osrfHashGet(kid_link, "field"));
2812                                                         jsonObjectSetIndex(
2813                                                                 cur->item,
2814                                                                 (unsigned long)atoi( osrfHashGet( field, "array_position" ) ),
2815                                                                 jsonObjectClone( kids )
2816                                                         );
2817                                                 }
2818
2819                                                 if (X) {
2820                                                         jsonObjectFree(kids);
2821                                                         kids = X;
2822                                                 }
2823
2824                                                 jsonObjectFree( kids );
2825                                                 jsonObjectFree( fake_params );
2826
2827                                                 osrfLogDebug(OSRF_LOG_MARK, "Fleshing of %s complete", osrfHashGet(kid_link, "field"));
2828                                                 osrfLogDebug(OSRF_LOG_MARK, "%s", jsonObjectToJSON(cur->item));
2829
2830                                         }
2831                                 }
2832                                 jsonObjectFree( flesh_blob );
2833                                 osrfStringArrayFree(link_fields);
2834                                 jsonObjectIteratorFree(itr);
2835                         }
2836                 }
2837         }
2838
2839         return res_list;
2840 }
2841
2842
2843 static jsonObject* doUpdate(osrfMethodContext* ctx, int* err ) {
2844
2845         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
2846         jsonObject* target = jsonObjectGetIndex(ctx->params, 0);
2847
2848         if (!verifyObjectClass(ctx, target)) {
2849                 *err = -1;
2850                 return jsonNULL;
2851         }
2852
2853         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
2854                 osrfAppSessionStatus(
2855                         ctx->session,
2856                         OSRF_STATUS_BADREQUEST,
2857                         "osrfMethodException",
2858                         ctx->request,
2859                         "No active transaction -- required for UPDATE"
2860                 );
2861                 *err = -1;
2862                 return jsonNULL;
2863         }
2864
2865         if (osrfHashGet( meta, "readonly" ) && strncasecmp("true", osrfHashGet( meta, "readonly" ), 4)) {
2866                 osrfAppSessionStatus(
2867                         ctx->session,
2868                         OSRF_STATUS_BADREQUEST,
2869                         "osrfMethodException",
2870                         ctx->request,
2871                         "Cannot UPDATE readonly class"
2872                 );
2873                 *err = -1;
2874                 return jsonNULL;
2875         }
2876
2877         dbhandle = writehandle;
2878
2879         char* trans_id = osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" );
2880
2881         // Set the last_xact_id
2882         osrfHash* last_xact_id;
2883         if ((last_xact_id = oilsIDLFindPath("/%s/fields/last_xact_id", target->classname))) {
2884                 int index = atoi( osrfHashGet(last_xact_id, "array_position") );
2885                 osrfLogDebug(OSRF_LOG_MARK, "Setting last_xact_id to %s on %s at position %d", trans_id, target->classname, index);
2886                 jsonObjectSetIndex(target, index, jsonNewObject(trans_id));
2887         }
2888
2889         char* pkey = osrfHashGet(meta, "primarykey");
2890         osrfHash* fields = osrfHashGet(meta, "fields");
2891
2892         char* id =
2893                 jsonObjectToSimpleString(
2894                         jsonObjectGetIndex(
2895                                 target,
2896                                 atoi( osrfHashGet( osrfHashGet( fields, pkey ), "array_position" ) )
2897                         )
2898                 );
2899
2900         osrfLogDebug(
2901                 OSRF_LOG_MARK,
2902                 "%s updating %s object with %s = %s",
2903                 MODULENAME,
2904                 osrfHashGet(meta, "fieldmapper"),
2905                 pkey,
2906                 id
2907         );
2908
2909         growing_buffer* sql = buffer_init(128);
2910         buffer_fadd(sql,"UPDATE %s SET", osrfHashGet(meta, "tablename"));
2911
2912         int i = 0;
2913         int first = 1;
2914         char* field_name;
2915         osrfStringArray* field_list = osrfHashKeys( fields );
2916         while ( (field_name = osrfStringArrayGetString(field_list, i++)) ) {
2917
2918                 osrfHash* field = osrfHashGet( fields, field_name );
2919
2920                 if(!( strcmp( field_name, pkey ) )) continue;
2921                 if(!( strcmp( osrfHashGet(osrfHashGet(fields,field_name), "virtual"), "true" ) )) continue;
2922
2923                 jsonObject* field_object = jsonObjectGetIndex( target, atoi(osrfHashGet(field, "array_position")) );
2924
2925                 char* value;
2926                 if (field_object && field_object->classname) {
2927                         value = jsonObjectToSimpleString(
2928                                         jsonObjectGetIndex(
2929                                                 field_object,
2930                                                 atoi(
2931                                                         osrfHashGet(
2932                                                                 osrfHashGet(
2933                                                                         oilsIDLFindPath("/%s/fields", field_object->classname),
2934                                                                         (char*)oilsIDLFindPath("/%s/primarykey", field_object->classname)
2935                                                                 ),
2936                                                                 "array_position"
2937                                                         )
2938                                                 )
2939                                         )
2940                                 );
2941
2942                 } else {
2943                         value = jsonObjectToSimpleString( field_object );
2944                 }
2945
2946                 osrfLogDebug( OSRF_LOG_MARK, "Updating %s object with %s = %s", osrfHashGet(meta, "fieldmapper"), field_name, value);
2947
2948                 if (!field_object || field_object->type == JSON_NULL) {
2949                         if ( !(!( strcmp( osrfHashGet(meta, "classname"), "au" ) ) && !( strcmp( field_name, "passwd" ) )) ) { // arg at the special case!
2950                                 if (first) first = 0;
2951                                 else buffer_add(sql, ",");
2952                                 buffer_fadd( sql, " %s = NULL", field_name );
2953                         }
2954
2955                 } else if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
2956                         if (first) first = 0;
2957                         else buffer_add(sql, ",");
2958
2959                         if ( !strncmp(osrfHashGet(field, "datatype"), "INT", (size_t)3) ) {
2960                                 buffer_fadd( sql, " %s = %ld", field_name, atol(value) );
2961                         } else if ( !strcmp(osrfHashGet(field, "datatype"), "NUMERIC") ) {
2962                                 buffer_fadd( sql, " %s = %f", field_name, atof(value) );
2963                         }
2964
2965                         osrfLogDebug( OSRF_LOG_MARK, "%s is of type %s", field_name, osrfHashGet(field, "datatype"));
2966
2967                 } else {
2968                         if ( dbi_conn_quote_string(dbhandle, &value) ) {
2969                                 if (first) first = 0;
2970                                 else buffer_add(sql, ",");
2971                                 buffer_fadd( sql, " %s = %s", field_name, value );
2972
2973                         } else {
2974                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting string [%s]", MODULENAME, value);
2975                                 osrfAppSessionStatus(
2976                                         ctx->session,
2977                                         OSRF_STATUS_INTERNALSERVERERROR,
2978                                         "osrfMethodException",
2979                                         ctx->request,
2980                                         "Error quoting string -- please see the error log for more details"
2981                                 );
2982                                 free(value);
2983                                 free(id);
2984                                 buffer_free(sql);
2985                                 *err = -1;
2986                                 return jsonNULL;
2987                         }
2988                 }
2989
2990                 free(value);
2991
2992         }
2993
2994         jsonObject* obj = jsonParseString(id);
2995
2996         if ( strcmp( osrfHashGet( osrfHashGet( osrfHashGet(meta, "fields"), pkey ), "primitive" ), "number" ) )
2997                 dbi_conn_quote_string(dbhandle, &id);
2998
2999         buffer_fadd( sql, " WHERE %s = %s;", pkey, id );
3000
3001         char* query = buffer_release(sql);
3002         osrfLogDebug(OSRF_LOG_MARK, "%s: Update SQL [%s]", MODULENAME, query);
3003
3004         dbi_result result = dbi_conn_query(dbhandle, query);
3005         free(query);
3006
3007         if (!result) {
3008                 jsonObjectFree(obj);
3009                 obj = jsonNewObject(NULL);
3010                 osrfLogError(
3011                         OSRF_LOG_MARK,
3012                         "%s ERROR updating %s object with %s = %s",
3013                         MODULENAME,
3014                         osrfHashGet(meta, "fieldmapper"),
3015                         pkey,
3016                         id
3017                 );
3018         }
3019
3020         free(id);
3021
3022         return obj;
3023 }
3024
3025 static jsonObject* doDelete(osrfMethodContext* ctx, int* err ) {
3026
3027         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
3028
3029         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
3030                 osrfAppSessionStatus(
3031                         ctx->session,
3032                         OSRF_STATUS_BADREQUEST,
3033                         "osrfMethodException",
3034                         ctx->request,
3035                         "No active transaction -- required for DELETE"
3036                 );
3037                 *err = -1;
3038                 return jsonNULL;
3039         }
3040
3041         if (osrfHashGet( meta, "readonly" ) && strncasecmp("true", osrfHashGet( meta, "readonly" ), 4)) {
3042                 osrfAppSessionStatus(
3043                         ctx->session,
3044                         OSRF_STATUS_BADREQUEST,
3045                         "osrfMethodException",
3046                         ctx->request,
3047                         "Cannot DELETE readonly class"
3048                 );
3049                 *err = -1;
3050                 return jsonNULL;
3051         }
3052
3053         dbhandle = writehandle;
3054
3055         jsonObject* obj;
3056
3057         char* pkey = osrfHashGet(meta, "primarykey");
3058
3059         char* id;
3060         if (jsonObjectGetIndex(ctx->params, 0)->classname) {
3061                 if (!verifyObjectClass(ctx, jsonObjectGetIndex( ctx->params, 0 ))) {
3062                         *err = -1;
3063                         return jsonNULL;
3064                 }
3065
3066                 id = jsonObjectToSimpleString(
3067                         jsonObjectGetIndex(
3068                                 jsonObjectGetIndex(ctx->params, 0),
3069                                 atoi( osrfHashGet( osrfHashGet( osrfHashGet(meta, "fields"), pkey ), "array_position") )
3070                         )
3071                 );
3072         } else {
3073                 id = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
3074         }
3075
3076         osrfLogDebug(
3077                 OSRF_LOG_MARK,
3078                 "%s deleting %s object with %s = %s",
3079                 MODULENAME,
3080                 osrfHashGet(meta, "fieldmapper"),
3081                 pkey,
3082                 id
3083         );
3084
3085         obj = jsonParseString(id);
3086
3087         if ( strcmp( osrfHashGet( osrfHashGet( osrfHashGet(meta, "fields"), pkey ), "primitive" ), "number" ) )
3088                 dbi_conn_quote_string(writehandle, &id);
3089
3090         dbi_result result = dbi_conn_queryf(writehandle, "DELETE FROM %s WHERE %s = %s;", osrfHashGet(meta, "tablename"), pkey, id);
3091
3092         if (!result) {
3093                 jsonObjectFree(obj);
3094                 obj = jsonNewObject(NULL);
3095                 osrfLogError(
3096                         OSRF_LOG_MARK,
3097                         "%s ERROR deleting %s object with %s = %s",
3098                         MODULENAME,
3099                         osrfHashGet(meta, "fieldmapper"),
3100                         pkey,
3101                         id
3102                 );
3103         }
3104
3105         free(id);
3106
3107         return obj;
3108
3109 }
3110
3111
3112 static jsonObject* oilsMakeFieldmapperFromResult( dbi_result result, osrfHash* meta) {
3113         if(!(result && meta)) return jsonNULL;
3114
3115         jsonObject* object = jsonNewObject(NULL);
3116         jsonObjectSetClass(object, osrfHashGet(meta, "classname"));
3117
3118         osrfHash* fields = osrfHashGet(meta, "fields");
3119
3120         osrfLogInternal(OSRF_LOG_MARK, "Setting object class to %s ", object->classname);
3121
3122         osrfHash* _f;
3123         time_t _tmp_dt;
3124         char dt_string[256];
3125         struct tm gmdt;
3126
3127         int fmIndex;
3128         int columnIndex = 1;
3129         int attr;
3130         unsigned short type;
3131         const char* columnName;
3132
3133         /* cycle through the column list */
3134         while( (columnName = dbi_result_get_field_name(result, columnIndex++)) ) {
3135
3136                 osrfLogInternal(OSRF_LOG_MARK, "Looking for column named [%s]...", (char*)columnName);
3137
3138                 fmIndex = -1; // reset the position
3139
3140                 /* determine the field type and storage attributes */
3141                 type = dbi_result_get_field_type(result, columnName);
3142                 attr = dbi_result_get_field_attribs(result, columnName);
3143
3144                 /* fetch the fieldmapper index */
3145                 if( (_f = osrfHashGet(fields, (char*)columnName)) ) {
3146                         char* virt = (char*)osrfHashGet(_f, "virtual");
3147                         char* pos = (char*)osrfHashGet(_f, "array_position");
3148
3149                         if ( !virt || !pos || !(strcmp( virt, "true" )) ) continue;
3150
3151                         fmIndex = atoi( pos );
3152                         osrfLogInternal(OSRF_LOG_MARK, "... Found column at position [%s]...", pos);
3153                 } else {
3154                         continue;
3155                 }
3156
3157                 if (dbi_result_field_is_null(result, columnName)) {
3158                         jsonObjectSetIndex( object, fmIndex, jsonNewObject(NULL) );
3159                 } else {
3160
3161                         switch( type ) {
3162
3163                                 case DBI_TYPE_INTEGER :
3164
3165                                         if( attr & DBI_INTEGER_SIZE8 )
3166                                                 jsonObjectSetIndex( object, fmIndex,
3167                                                         jsonNewNumberObject(dbi_result_get_longlong(result, columnName)));
3168                                         else
3169                                                 jsonObjectSetIndex( object, fmIndex,
3170                                                         jsonNewNumberObject(dbi_result_get_long(result, columnName)));
3171
3172                                         break;
3173
3174                                 case DBI_TYPE_DECIMAL :
3175                                         jsonObjectSetIndex( object, fmIndex,
3176                                                         jsonNewNumberObject(dbi_result_get_double(result, columnName)));
3177                                         break;
3178
3179                                 case DBI_TYPE_STRING :
3180
3181
3182                                         jsonObjectSetIndex(
3183                                                 object,
3184                                                 fmIndex,
3185                                                 jsonNewObject( dbi_result_get_string(result, columnName) )
3186                                         );
3187
3188                                         break;
3189
3190                                 case DBI_TYPE_DATETIME :
3191
3192                                         memset(dt_string, '\0', sizeof(dt_string));
3193                                         memset(&gmdt, '\0', sizeof(gmdt));
3194                                         memset(&_tmp_dt, '\0', sizeof(_tmp_dt));
3195
3196                                         _tmp_dt = dbi_result_get_datetime(result, columnName);
3197
3198                                         localtime_r( &_tmp_dt, &gmdt );
3199
3200                                         if (!(attr & DBI_DATETIME_DATE)) {
3201                                                 strftime(dt_string, 255, "%T", &gmdt);
3202                                         } else if (!(attr & DBI_DATETIME_TIME)) {
3203                                                 strftime(dt_string, 255, "%F", &gmdt);
3204                                         } else {
3205                                                 strftime(dt_string, 255, "%FT%T%z", &gmdt);
3206                                         }
3207
3208                                         jsonObjectSetIndex( object, fmIndex, jsonNewObject(dt_string) );
3209
3210                                         break;
3211
3212                                 case DBI_TYPE_BINARY :
3213                                         osrfLogError( OSRF_LOG_MARK,
3214                                                 "Can't do binary at column %s : index %d", columnName, columnIndex - 1);
3215                         }
3216                 }
3217         }
3218
3219         return object;
3220 }
3221
3222 static jsonObject* oilsMakeJSONFromResult( dbi_result result ) {
3223         if(!result) return jsonNULL;
3224
3225         jsonObject* object = jsonNewObject(NULL);
3226
3227         time_t _tmp_dt;
3228         char dt_string[256];
3229         struct tm gmdt;
3230
3231         int fmIndex;
3232         int columnIndex = 1;
3233         int attr;
3234         unsigned short type;
3235         const char* columnName;
3236
3237         /* cycle through the column list */
3238         while( (columnName = dbi_result_get_field_name(result, columnIndex++)) ) {
3239
3240                 osrfLogInternal(OSRF_LOG_MARK, "Looking for column named [%s]...", (char*)columnName);
3241
3242                 fmIndex = -1; // reset the position
3243
3244                 /* determine the field type and storage attributes */
3245                 type = dbi_result_get_field_type(result, columnName);
3246                 attr = dbi_result_get_field_attribs(result, columnName);
3247
3248                 if (dbi_result_field_is_null(result, columnName)) {
3249                         jsonObjectSetKey( object, columnName, jsonNewObject(NULL) );
3250                 } else {
3251
3252                         switch( type ) {
3253
3254                                 case DBI_TYPE_INTEGER :
3255
3256                                         if( attr & DBI_INTEGER_SIZE8 )
3257                                                 jsonObjectSetKey( object, columnName, jsonNewNumberObject(dbi_result_get_longlong(result, columnName)) );
3258                                         else
3259                                                 jsonObjectSetKey( object, columnName, jsonNewNumberObject(dbi_result_get_long(result, columnName)) );
3260                                         break;
3261
3262                                 case DBI_TYPE_DECIMAL :
3263                                         jsonObjectSetKey( object, columnName, jsonNewNumberObject(dbi_result_get_double(result, columnName)) );
3264                                         break;
3265
3266                                 case DBI_TYPE_STRING :
3267                                         jsonObjectSetKey( object, columnName, jsonNewObject(dbi_result_get_string(result, columnName)) );
3268                                         break;
3269
3270                                 case DBI_TYPE_DATETIME :
3271
3272                                         memset(dt_string, '\0', sizeof(dt_string));
3273                                         memset(&gmdt, '\0', sizeof(gmdt));
3274                                         memset(&_tmp_dt, '\0', sizeof(_tmp_dt));
3275
3276                                         _tmp_dt = dbi_result_get_datetime(result, columnName);
3277
3278                                         localtime_r( &_tmp_dt, &gmdt );
3279
3280                                         if (!(attr & DBI_DATETIME_DATE)) {
3281                                                 strftime(dt_string, 255, "%T", &gmdt);
3282                                         } else if (!(attr & DBI_DATETIME_TIME)) {
3283                                                 strftime(dt_string, 255, "%F", &gmdt);
3284                                         } else {
3285                                                 strftime(dt_string, 255, "%FT%T%z", &gmdt);
3286                                         }
3287
3288                                         jsonObjectSetKey( object, columnName, jsonNewObject(dt_string) );
3289                                         break;
3290
3291                                 case DBI_TYPE_BINARY :
3292                                         osrfLogError( OSRF_LOG_MARK,
3293                                                 "Can't do binary at column %s : index %d", columnName, columnIndex - 1);
3294                         }
3295                 }
3296         }
3297
3298         return object;
3299 }
3300