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

   1 #include "opensrf/osrf_application.h"
   2 #include "opensrf/osrf_settings.h"
   3 #include "opensrf/utils.h"
   4 #include "objson/object.h"
   5 #include "opensrf/log.h"
   6 #include "oils_utils.h"
   7 #include "oils_constants.h"
   8 #include "oils_event.h"
   9 #include "oils_idl.h"
  10 #include <dbi/dbi.h>
  11
  12 #include <time.h>
  13 #include <stdlib.h>
  14 #include <string.h>
  15
  16 #define OILS_AUTH_CACHE_PRFX "oils_cstore_"
  17 #define MODULENAME "open-ils.cstore"
  18 #define PERSIST_NS "http://open-ils.org/spec/opensrf/IDL/persistance/v1"
  19 #define OBJECT_NS "http://open-ils.org/spec/opensrf/IDL/objects/v1"
  20 #define BASE_NS "http://opensrf.org/spec/IDL/base/v1"
  21
  22 int osrfAppChildInit();
  23 int osrfAppInitialize();
  24
  25 int verifyObjectClass ( osrfMethodContext*, jsonObject* );
  26
  27 int beginTransaction ( osrfMethodContext* );
  28 int commitTransaction ( osrfMethodContext* );
  29 int rollbackTransaction ( osrfMethodContext* );
  30
  31 int setSavepoint ( osrfMethodContext* );
  32 int releaseSavepoint ( osrfMethodContext* );
  33 int rollbackSavepoint ( osrfMethodContext* );
  34
  35 int dispatchCRUDMethod ( osrfMethodContext* );
  36 jsonObject* doCreate ( osrfMethodContext*, int* );
  37 jsonObject* doRetrieve ( osrfMethodContext*, int* );
  38 jsonObject* doUpdate ( osrfMethodContext*, int* );
  39 jsonObject* doDelete ( osrfMethodContext*, int* );
  40 jsonObject* doSearch ( osrfMethodContext*, osrfHash*, jsonObject*, int* );
  41 jsonObject* oilsMakeJSONFromResult( dbi_result, osrfHash* );
  42
  43 char* searchWriteSimplePredicate ( osrfHash*, const char*, const char*, const char* );
  44 char* searchSimplePredicate ( const char*, osrfHash*, jsonObject* );
  45 char* searchFunctionPredicate ( osrfHash*, jsonObjectNode* );
  46 char* searchFieldTransform (osrfHash*, jsonObject*);
  47 char* searchFieldTransformPredicate ( osrfHash*, jsonObjectNode* );
  48 char* searchBETWEENPredicate ( osrfHash*, jsonObject* );
  49 char* searchINPredicate ( osrfHash*, jsonObject* );
  50 char* searchPredicate ( osrfHash*, jsonObject* );
  51 char* buildSELECT ( jsonObject*, jsonObject*, osrfHash* );
  52
  53 void userDataFree( void* );
  54 void sessionDataFree( char*, void* );
  55
  56 dbi_conn writehandle; /* our MASTER db connection */
  57 dbi_conn dbhandle; /* our CURRENT db connection */
  58 osrfHash readHandles;
  59 jsonObject* jsonNULL = NULL; //
  60
  61
  62 /* parse and store the IDL here */
  63 osrfHash* idl;
  64
  65 int osrfAppInitialize() {
  66
  67         // first we register all the transaction and savepoint methods
  68         osrfAppRegisterMethod( MODULENAME, "open-ils.cstore.transaction.begin", "beginTransaction", "", 0, 0 );
  69         osrfAppRegisterMethod( MODULENAME, "open-ils.cstore.transaction.commit", "commitTransaction", "", 0, 0 );
  70         osrfAppRegisterMethod( MODULENAME, "open-ils.cstore.transaction.rollback", "rollbackTransaction", "", 0, 0 );
  71
  72         osrfAppRegisterMethod( MODULENAME, "open-ils.cstore.savepoint.set", "setSavepoint", "", 1, 0 );
  73         osrfAppRegisterMethod( MODULENAME, "open-ils.cstore.savepoint.release", "releaseSavepoint", "", 1, 0 );
  74         osrfAppRegisterMethod( MODULENAME, "open-ils.cstore.savepoint.rollback", "rollbackSavepoint", "", 1, 0 );
  75
  76
  77         osrfLogInfo(OSRF_LOG_MARK, "Initializing the CStore Server...");
  78         osrfLogInfo(OSRF_LOG_MARK, "Finding XML file...");
  79
  80         char * idl_filename = osrf_settings_host_value("/apps/%s/app_settings/IDL", MODULENAME);
  81         osrfLogInfo(OSRF_LOG_MARK, "Found file:");
  82         osrfLogInfo(OSRF_LOG_MARK, idl_filename);
  83
  84         idl = oilsIDLInit( idl_filename );
  85
  86         if (!idl) {
  87                 osrfLogError(OSRF_LOG_MARK, "Problem loading the IDL.  Seacrest out!");
  88                 exit(1);
  89         }
  90
  91         osrfStringArray* global_methods = osrfNewStringArray(6);
  92
  93         osrfStringArrayAdd( global_methods, "create" );
  94         osrfStringArrayAdd( global_methods, "retrieve" );
  95         osrfStringArrayAdd( global_methods, "update" );
  96         osrfStringArrayAdd( global_methods, "delete" );
  97         osrfStringArrayAdd( global_methods, "search" );
  98         osrfStringArrayAdd( global_methods, "id_list" );
  99
 100         int c_index = 0;
 101         char* classname;
 102         osrfStringArray* classes = osrfHashKeys( idl );
 103         osrfLogDebug(OSRF_LOG_MARK, "%d classes loaded", classes->size );
 104         osrfLogDebug(OSRF_LOG_MARK, "At least %d methods will be generated", classes->size * global_methods->size);
 105
 106         while ( (classname = osrfStringArrayGetString(classes, c_index++)) ) {
 107                 osrfLogInfo(OSRF_LOG_MARK, "Generating class methods for %s", classname);
 108
 109                 osrfHash* idlClass = osrfHashGet(idl, classname);
 110
 111                 char* virt = osrfHashGet(idlClass, "virtual");
 112                 if (virt && !strcmp( virt, "true")) {
 113                         osrfLogDebug(OSRF_LOG_MARK, "Class %s is virtual, skipping", classname );
 114                         continue;
 115                 }
 116
 117                 osrfLogDebug(OSRF_LOG_MARK, "HERE");
 118
 119                 int i = 0;
 120                 char* method_type;
 121                 char* st_tmp;
 122                 char* _fm;
 123                 char* part;
 124                 osrfHash* method_meta;
 125                 while ( (method_type = osrfStringArrayGetString(global_methods, i++)) ) {
 126                         osrfLogDebug(OSRF_LOG_MARK, "Using files to build %s class methods for %s", method_type, classname);
 127
 128                         if (!osrfHashGet(idlClass, "fieldmapper")) continue;
 129
 130                         method_meta = osrfNewHash();
 131                         osrfHashSet(method_meta, idlClass, "class");
 132
 133                         _fm = strdup( (char*)osrfHashGet(idlClass, "fieldmapper") );
 134                         part = strtok_r(_fm, ":", &st_tmp);
 135
 136                         growing_buffer* method_name =  buffer_init(64);
 137                         buffer_fadd(method_name, "%s.direct.%s", MODULENAME, part);
 138
 139                         while ((part = strtok_r(NULL, ":", &st_tmp))) {
 140                                 buffer_fadd(method_name, ".%s", part);
 141                         }
 142                         buffer_fadd(method_name, ".%s", method_type);
 143
 144
 145                         char* method = buffer_data(method_name);
 146                         buffer_free(method_name);
 147                         free(_fm);
 148
 149                         osrfHashSet( method_meta, method, "methodname" );
 150                         osrfHashSet( method_meta, method_type, "methodtype" );
 151
 152                         int flags = 0;
 153                         if (!(strcmp( method_type, "search" )) || !(strcmp( method_type, "id_list" ))) {
 154                                 flags = flags | OSRF_METHOD_STREAMING;
 155                         }
 156
 157                         osrfAppRegisterExtendedMethod(
 158                                 MODULENAME,
 159                                 method,
 160                                 "dispatchCRUDMethod",
 161                                 "",
 162                                 1,
 163                                 flags,
 164                                 (void*)method_meta
 165                         );
 166                 }
 167         }
 168
 169         return 0;
 170 }
 171
 172 /**
 173  * Connects to the database
 174  */
 175 int osrfAppChildInit() {
 176
 177         osrfLogDebug(OSRF_LOG_MARK, "Attempting to initialize libdbi...");
 178         dbi_initialize(NULL);
 179         osrfLogDebug(OSRF_LOG_MARK, "... libdbi initialized.");
 180
 181         char* driver    = osrf_settings_host_value("/apps/%s/app_settings/driver", MODULENAME);
 182         char* user      = osrf_settings_host_value("/apps/%s/app_settings/database/user", MODULENAME);
 183         char* host      = osrf_settings_host_value("/apps/%s/app_settings/database/host", MODULENAME);
 184         char* port      = osrf_settings_host_value("/apps/%s/app_settings/database/port", MODULENAME);
 185         char* db        = osrf_settings_host_value("/apps/%s/app_settings/database/db", MODULENAME);
 186         char* pw        = osrf_settings_host_value("/apps/%s/app_settings/database/pw", MODULENAME);
 187
 188         osrfLogDebug(OSRF_LOG_MARK, "Attempting to load the database driver [%s]...", driver);
 189         writehandle = dbi_conn_new(driver);
 190
 191         if(!writehandle) {
 192                 osrfLogError(OSRF_LOG_MARK, "Error loading database driver [%s]", driver);
 193                 return -1;
 194         }
 195         osrfLogDebug(OSRF_LOG_MARK, "Database driver [%s] seems OK", driver);
 196
 197         osrfLogInfo(OSRF_LOG_MARK, "%s connecting to database.  host=%s, "
 198                 "port=%s, user=%s, pw=%s, db=%s", MODULENAME, host, port, user, pw, db );
 199
 200         if(host) dbi_conn_set_option(writehandle, "host", host );
 201         if(port) dbi_conn_set_option_numeric( writehandle, "port", atoi(port) );
 202         if(user) dbi_conn_set_option(writehandle, "username", user);
 203         if(pw) dbi_conn_set_option(writehandle, "password", pw );
 204         if(db) dbi_conn_set_option(writehandle, "dbname", db );
 205
 206         free(user);
 207         free(host);
 208         free(port);
 209         free(db);
 210         free(pw);
 211
 212         const char* err;
 213         if (dbi_conn_connect(writehandle) < 0) {
 214                 dbi_conn_error(writehandle, &err);
 215                 osrfLogError( OSRF_LOG_MARK, "Error connecting to database: %s", err);
 216                 return -1;
 217         }
 218
 219         osrfLogInfo(OSRF_LOG_MARK, "%s successfully connected to the database", MODULENAME);
 220
 221         int attr;
 222         unsigned short type;
 223         int i = 0;
 224         char* classname;
 225         osrfStringArray* classes = osrfHashKeys( idl );
 226
 227         while ( (classname = osrfStringArrayGetString(classes, i++)) ) {
 228                 osrfHash* class = osrfHashGet( idl, classname );
 229                 osrfHash* fields = osrfHashGet( class, "fields" );
 230
 231                 char* virt = osrfHashGet(class, "virtual");
 232                 if (virt && !strcmp( virt, "true")) {
 233                         osrfLogDebug(OSRF_LOG_MARK, "Class %s is virtual, skipping", classname );
 234                         continue;
 235                 }
 236
 237
 238                 growing_buffer* sql_buf = buffer_init(32);
 239                 buffer_fadd( sql_buf, "SELECT * FROM %s WHERE 1=0;", osrfHashGet(class, "tablename") );
 240
 241                 char* sql = buffer_data(sql_buf);
 242                 buffer_free(sql_buf);
 243                 osrfLogDebug(OSRF_LOG_MARK, "%s Investigatory SQL = %s", MODULENAME, sql);
 244
 245                 dbi_result result = dbi_conn_query(writehandle, sql);
 246                 free(sql);
 247
 248                 if (result) {
 249
 250                         int columnIndex = 1;
 251                         const char* columnName;
 252                         osrfHash* _f;
 253                         while( (columnName = dbi_result_get_field_name(result, columnIndex++)) ) {
 254
 255                                 osrfLogInternal(OSRF_LOG_MARK, "Looking for column named [%s]...", (char*)columnName);
 256
 257                                 /* fetch the fieldmapper index */
 258                                 if( (_f = osrfHashGet(fields, (char*)columnName)) ) {
 259
 260                                         osrfLogDebug(OSRF_LOG_MARK, "Found [%s] in IDL hash...", (char*)columnName);
 261
 262                                         /* determine the field type and storage attributes */
 263                                         type = dbi_result_get_field_type(result, columnName);
 264                                         attr = dbi_result_get_field_attribs(result, columnName);
 265
 266                                         switch( type ) {
 267
 268                                                 case DBI_TYPE_INTEGER :
 269
 270                                                         if ( !osrfHashGet(_f, "primitive") )
 271                                                                 osrfHashSet(_f,"number", "primitive");
 272
 273                                                         if( attr & DBI_INTEGER_SIZE8 )
 274                                                                 osrfHashSet(_f,"INT8", "datatype");
 275                                                         else
 276                                                                 osrfHashSet(_f,"INT", "datatype");
 277                                                         break;
 278
 279                                                 case DBI_TYPE_DECIMAL :
 280                                                         if ( !osrfHashGet(_f, "primitive") )
 281                                                                 osrfHashSet(_f,"number", "primitive");
 282
 283                                                         osrfHashSet(_f,"NUMERIC", "datatype");
 284                                                         break;
 285
 286                                                 case DBI_TYPE_STRING :
 287                                                         if ( !osrfHashGet(_f, "primitive") )
 288                                                                 osrfHashSet(_f,"string", "primitive");
 289                                                         osrfHashSet(_f,"TEXT", "datatype");
 290                                                         break;
 291
 292                                                 case DBI_TYPE_DATETIME :
 293                                                         if ( !osrfHashGet(_f, "primitive") )
 294                                                                 osrfHashSet(_f,"string", "primitive");
 295
 296                                                         osrfHashSet(_f,"TIMESTAMP", "datatype");
 297                                                         break;
 298
 299                                                 case DBI_TYPE_BINARY :
 300                                                         if ( !osrfHashGet(_f, "primitive") )
 301                                                                 osrfHashSet(_f,"string", "primitive");
 302
 303                                                         osrfHashSet(_f,"BYTEA", "datatype");
 304                                         }
 305
 306                                         osrfLogDebug(
 307                                                 OSRF_LOG_MARK,
 308                                                 "Setting [%s] to primitive [%s] and datatype [%s]...",
 309                                                 (char*)columnName,
 310                                                 osrfHashGet(_f, "primitive"),
 311                                                 osrfHashGet(_f, "datatype")
 312                                         );
 313                                 }
 314                         }
 315                         dbi_result_free(result);
 316                 } else {
 317                         osrfLogDebug(OSRF_LOG_MARK, "No data found for class [%s]...", (char*)classname);
 318                 }
 319         }
 320
 321         osrfStringArrayFree(classes);
 322
 323         return 0;
 324 }
 325
 326 void userDataFree( void* blob ) {
 327         osrfHashFree( (osrfHash*)blob );
 328         return;
 329 }
 330
 331 void sessionDataFree( char* key, void* item ) {
 332         if (!(strcmp(key,"xact_id"))) {
 333                 if (writehandle)
 334                         dbi_conn_query(writehandle, "ROLLBACK;");
 335                 free(item);
 336         }
 337
 338         return;
 339 }
 340
 341 int beginTransaction ( osrfMethodContext* ctx ) {
 342         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 343
 344         dbi_result result = dbi_conn_query(writehandle, "START TRANSACTION;");
 345         if (!result) {
 346                 osrfLogError(OSRF_LOG_MARK, "%s: Error starting transaction", MODULENAME );
 347                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error starting transaction" );
 348                 return -1;
 349         } else {
 350                 jsonObject* ret = jsonNewObject(ctx->session->session_id);
 351                 osrfAppRespondComplete( ctx, ret );
 352                 jsonObjectFree(ret);
 353
 354                 if (!ctx->session->userData) {
 355                         ctx->session->userData = osrfNewHash();
 356                         ((osrfHash*)ctx->session->userData)->freeItem = &sessionDataFree;
 357                 }
 358
 359                 osrfHashSet( (osrfHash*)ctx->session->userData, strdup( ctx->session->session_id ), "xact_id" );
 360                 ctx->session->userDataFree = &userDataFree;
 361
 362         }
 363         return 0;
 364 }
 365
 366 int setSavepoint ( osrfMethodContext* ctx ) {
 367         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 368
 369         char* spName = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
 370
 371         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 372                 osrfAppSessionStatus(
 373                         ctx->session,
 374                         OSRF_STATUS_INTERNALSERVERERROR,
 375                         "osrfMethodException",
 376                         ctx->request,
 377                         "No active transaction -- required for savepoints"
 378                 );
 379                 return -1;
 380         }
 381
 382         dbi_result result = dbi_conn_queryf(writehandle, "SAVEPOINT \"%s\";", spName);
 383         if (!result) {
 384                 osrfLogError(
 385                         OSRF_LOG_MARK,
 386                         "%s: Error creating savepoint %s in transaction %s",
 387                         MODULENAME,
 388                         spName,
 389                         osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )
 390                 );
 391                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error creating savepoint" );
 392                 return -1;
 393         } else {
 394                 jsonObject* ret = jsonNewObject(spName);
 395                 osrfAppRespondComplete( ctx, ret );
 396                 jsonObjectFree(ret);
 397         }
 398         return 0;
 399 }
 400
 401 int releaseSavepoint ( osrfMethodContext* ctx ) {
 402         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 403
 404         char* spName = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
 405
 406         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 407                 osrfAppSessionStatus(
 408                         ctx->session,
 409                         OSRF_STATUS_INTERNALSERVERERROR,
 410                         "osrfMethodException",
 411                         ctx->request,
 412                         "No active transaction -- required for savepoints"
 413                 );
 414                 return -1;
 415         }
 416
 417         dbi_result result = dbi_conn_queryf(writehandle, "RELEASE SAVEPOINT \"%s\";", spName);
 418         if (!result) {
 419                 osrfLogError(
 420                         OSRF_LOG_MARK,
 421                         "%s: Error releasing savepoint %s in transaction %s",
 422                         MODULENAME,
 423                         spName,
 424                         osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )
 425                 );
 426                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error releasing savepoint" );
 427                 return -1;
 428         } else {
 429                 jsonObject* ret = jsonNewObject(spName);
 430                 osrfAppRespondComplete( ctx, ret );
 431                 jsonObjectFree(ret);
 432         }
 433         return 0;
 434 }
 435
 436 int rollbackSavepoint ( osrfMethodContext* ctx ) {
 437         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 438
 439         char* spName = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
 440
 441         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 442                 osrfAppSessionStatus(
 443                         ctx->session,
 444                         OSRF_STATUS_INTERNALSERVERERROR,
 445                         "osrfMethodException",
 446                         ctx->request,
 447                         "No active transaction -- required for savepoints"
 448                 );
 449                 return -1;
 450         }
 451
 452         dbi_result result = dbi_conn_queryf(writehandle, "ROLLBACK TO SAVEPOINT \"%s\";", spName);
 453         if (!result) {
 454                 osrfLogError(
 455                         OSRF_LOG_MARK,
 456                         "%s: Error rolling back savepoint %s in transaction %s",
 457                         MODULENAME,
 458                         spName,
 459                         osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )
 460                 );
 461                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error rolling back savepoint" );
 462                 return -1;
 463         } else {
 464                 jsonObject* ret = jsonNewObject(spName);
 465                 osrfAppRespondComplete( ctx, ret );
 466                 jsonObjectFree(ret);
 467         }
 468         return 0;
 469 }
 470
 471 int commitTransaction ( osrfMethodContext* ctx ) {
 472         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 473
 474         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 475                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "No active transaction to commit" );
 476                 return -1;
 477         }
 478
 479         dbi_result result = dbi_conn_query(writehandle, "COMMIT;");
 480         if (!result) {
 481                 osrfLogError(OSRF_LOG_MARK, "%s: Error committing transaction", MODULENAME );
 482                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error committing transaction" );
 483                 return -1;
 484         } else {
 485                 osrfHashRemove(ctx->session->userData, "xact_id");
 486                 jsonObject* ret = jsonNewObject(ctx->session->session_id);
 487                 osrfAppRespondComplete( ctx, ret );
 488                 jsonObjectFree(ret);
 489         }
 490         return 0;
 491 }
 492
 493 int rollbackTransaction ( osrfMethodContext* ctx ) {
 494         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 495
 496         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 497                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "No active transaction to roll back" );
 498                 return -1;
 499         }
 500
 501         dbi_result result = dbi_conn_query(writehandle, "ROLLBACK;");
 502         if (!result) {
 503                 osrfLogError(OSRF_LOG_MARK, "%s: Error rolling back transaction", MODULENAME );
 504                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error rolling back transaction" );
 505                 return -1;
 506         } else {
 507                 osrfHashRemove(ctx->session->userData, "xact_id");
 508                 jsonObject* ret = jsonNewObject(ctx->session->session_id);
 509                 osrfAppRespondComplete( ctx, ret );
 510                 jsonObjectFree(ret);
 511         }
 512         return 0;
 513 }
 514
 515 int dispatchCRUDMethod ( osrfMethodContext* ctx ) {
 516         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 517
 518         osrfHash* meta = (osrfHash*) ctx->method->userData;
 519         osrfHash* class_obj = osrfHashGet( meta, "class" );
 520
 521         int err = 0;
 522
 523         jsonObject * obj = NULL;
 524         if (!strcmp( (char*)osrfHashGet(meta, "methodtype"), "create"))
 525                 obj = doCreate(ctx, &err);
 526
 527         if (!strcmp( (char*)osrfHashGet(meta, "methodtype"), "retrieve"))
 528                 obj = doRetrieve(ctx, &err);
 529
 530         if (!strcmp( (char*)osrfHashGet(meta, "methodtype"), "update"))
 531                 obj = doUpdate(ctx, &err);
 532
 533         if (!strcmp( (char*)osrfHashGet(meta, "methodtype"), "delete"))
 534                 obj = doDelete(ctx, &err);
 535
 536         if (!strcmp( (char*)osrfHashGet(meta, "methodtype"), "search")) {
 537
 538                 obj = doSearch(ctx, class_obj, ctx->params, &err);
 539                 if(err) return err;
 540
 541                 jsonObjectNode* cur;
 542                 jsonObjectIterator* itr = jsonNewObjectIterator( obj );
 543                 while ((cur = jsonObjectIteratorNext( itr ))) {
 544                         osrfAppRespond( ctx, jsonObjectClone(cur->item) );
 545                 }
 546                 jsonObjectIteratorFree(itr);
 547                 osrfAppRespondComplete( ctx, NULL );
 548
 549         } else if (!strcmp( (char*)osrfHashGet(meta, "methodtype"), "id_list")) {
 550
 551                 jsonObject* _p = jsonObjectClone( ctx->params );
 552                 if (jsonObjectGetIndex( _p, 1 )) {
 553                         jsonObjectRemoveKey( jsonObjectGetIndex( _p, 1 ), "flesh" );
 554                         jsonObjectRemoveKey( jsonObjectGetIndex( _p, 1 ), "flesh_columns" );
 555                 } else {
 556                         jsonObjectSetIndex( _p, 1, jsonParseString("{}") );
 557                 }
 558
 559                 growing_buffer* sel_list = buffer_init(16);
 560                 buffer_fadd(sel_list, "{ \"%s\":[\"%s\"] }", osrfHashGet( class_obj, "classname" ), osrfHashGet( class_obj, "primarykey" ));
 561                 char* _s = buffer_data(sel_list);
 562                 buffer_free(sel_list);
 563
 564                 jsonObjectSetKey( jsonObjectGetIndex( _p, 1 ), "select", jsonParseString(_s) );
 565                 osrfLogDebug(OSRF_LOG_MARK, "%s: Select qualifer set to [%s]", MODULENAME, _s);
 566                 free(_s);
 567
 568                 obj = doSearch(ctx, class_obj, _p, &err);
 569                 if(err) return err;
 570
 571                 jsonObjectNode* cur;
 572                 jsonObjectIterator* itr = jsonNewObjectIterator( obj );
 573                 while ((cur = jsonObjectIteratorNext( itr ))) {
 574                         osrfAppRespond(
 575                                 ctx,
 576                                 jsonObjectClone(
 577                                         jsonObjectGetIndex(
 578                                                 cur->item,
 579                                                 atoi(
 580                                                         osrfHashGet(
 581                                                                 osrfHashGet(
 582                                                                         osrfHashGet( class_obj, "fields" ),
 583                                                                         osrfHashGet( class_obj, "primarykey")
 584                                                                 ),
 585                                                                 "array_position"
 586                                                         )
 587                                                 )
 588                                         )
 589                                 )
 590                         );
 591                 }
 592                 jsonObjectIteratorFree(itr);
 593                 osrfAppRespondComplete( ctx, NULL );
 594
 595         } else {
 596                 osrfAppRespondComplete( ctx, obj );
 597         }
 598
 599         jsonObjectFree(obj);
 600
 601         return err;
 602 }
 603
 604 int verifyObjectClass ( osrfMethodContext* ctx, jsonObject* param ) {
 605
 606         osrfHash* meta = (osrfHash*) ctx->method->userData;
 607         osrfHash* class = osrfHashGet( meta, "class" );
 608
 609         if ((strcmp( osrfHashGet(class, "classname"), param->classname ))) {
 610
 611                 growing_buffer* msg = buffer_init(128);
 612                 buffer_fadd(
 613                         msg,
 614                         "%s: %s method for type %s was passed a %s",
 615                         MODULENAME,
 616                         osrfHashGet(meta, "methodtype"),
 617                         osrfHashGet(class, "classname"),
 618                         param->classname
 619                 );
 620
 621                 char* m = buffer_data(msg);
 622                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_BADREQUEST, "osrfMethodException", ctx->request, m );
 623
 624                 buffer_free(msg);
 625                 free(m);
 626
 627                 return 0;
 628         }
 629         return 1;
 630 }
 631
 632 jsonObject* doCreate(osrfMethodContext* ctx, int* err ) {
 633
 634         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
 635         jsonObject* target = jsonObjectGetIndex( ctx->params, 0 );
 636         jsonObject* options = jsonObjectGetIndex( ctx->params, 1 );
 637
 638         if (!verifyObjectClass(ctx, target)) {
 639                 *err = -1;
 640                 return jsonNULL;
 641         }
 642
 643         osrfLogDebug( OSRF_LOG_MARK, "Object seems to be of the correct type" );
 644
 645         if (!ctx->session || !ctx->session->userData || !osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 646                 osrfLogError( OSRF_LOG_MARK, "No active transaction -- required for CREATE" );
 647
 648                 osrfAppSessionStatus(
 649                         ctx->session,
 650                         OSRF_STATUS_BADREQUEST,
 651                         "osrfMethodException",
 652                         ctx->request,
 653                         "No active transaction -- required for CREATE"
 654                 );
 655                 *err = -1;
 656                 return jsonNULL;
 657         }
 658
 659         char* trans_id = osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" );
 660
 661         // Set the last_xact_id
 662         osrfHash* last_xact_id;
 663         if ((last_xact_id = oilsIDLFindPath("/%s/fields/last_xact_id", target->classname))) {
 664                 int index = atoi( osrfHashGet(last_xact_id, "array_position") );
 665                 osrfLogDebug(OSRF_LOG_MARK, "Setting last_xact_id to %s on %s at position %d", trans_id, target->classname, index);
 666                 jsonObjectSetIndex(target, index, jsonNewObject(trans_id));
 667         }
 668
 669         osrfLogDebug( OSRF_LOG_MARK, "There is a transaction running..." );
 670
 671         dbhandle = writehandle;
 672
 673         osrfHash* fields = osrfHashGet(meta, "fields");
 674         char* pkey = osrfHashGet(meta, "primarykey");
 675         char* seq = osrfHashGet(meta, "sequence");
 676
 677         growing_buffer* table_buf = buffer_init(128);
 678         growing_buffer* col_buf = buffer_init(128);
 679         growing_buffer* val_buf = buffer_init(128);
 680
 681         buffer_fadd(table_buf,"INSERT INTO %s", osrfHashGet(meta, "tablename"));
 682         buffer_add(col_buf,"(");
 683         buffer_add(val_buf,"VALUES (");
 684
 685
 686         int i = 0;
 687         int first = 1;
 688         char* field_name;
 689         osrfStringArray* field_list = osrfHashKeys( fields );
 690         while ( (field_name = osrfStringArrayGetString(field_list, i++)) ) {
 691
 692                 osrfHash* field = osrfHashGet( fields, field_name );
 693
 694                 if(!( strcmp( osrfHashGet(osrfHashGet(fields,field_name), "virtual"), "true" ) )) continue;
 695
 696                 int pos = atoi(osrfHashGet(field, "array_position"));
 697                 char* value = jsonObjectToSimpleString( jsonObjectGetIndex( target, pos ) );
 698
 699                 if (first) {
 700                         first = 0;
 701                 } else {
 702                         buffer_add(col_buf, ",");
 703                         buffer_add(val_buf, ",");
 704                 }
 705
 706                 buffer_add(col_buf, field_name);
 707
 708                 if (!jsonObjectGetIndex(target, pos) || jsonObjectGetIndex(target, pos)->type == JSON_NULL) {
 709                         buffer_add( val_buf, "DEFAULT" );
 710
 711                 } else if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
 712                         if ( !strcmp(osrfHashGet(field, "datatype"), "INT8") ) {
 713                                 buffer_fadd( val_buf, "%lld", atol(value) );
 714
 715                         } else if ( !strcmp(osrfHashGet(field, "datatype"), "INT") ) {
 716                                 buffer_fadd( val_buf, "%ld", atoll(value) );
 717
 718                         } else if ( !strcmp(osrfHashGet(field, "datatype"), "NUMERIC") ) {
 719                                 buffer_fadd( val_buf, "%f", atof(value) );
 720                         }
 721                 } else {
 722                         if ( dbi_conn_quote_string(writehandle, &value) ) {
 723                                 buffer_fadd( val_buf, "%s", value );
 724
 725                         } else {
 726                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting string [%s]", MODULENAME, value);
 727                                 osrfAppSessionStatus(
 728                                         ctx->session,
 729                                         OSRF_STATUS_INTERNALSERVERERROR,
 730                                         "osrfMethodException",
 731                                         ctx->request,
 732                                         "Error quoting string -- please see the error log for more details"
 733                                 );
 734                                 free(value);
 735                                 buffer_free(table_buf);
 736                                 buffer_free(col_buf);
 737                                 buffer_free(val_buf);
 738                                 *err = -1;
 739                                 return jsonNULL;
 740                         }
 741                 }
 742
 743                 free(value);
 744
 745         }
 746
 747
 748         buffer_add(col_buf,")");
 749         buffer_add(val_buf,")");
 750
 751         growing_buffer* sql = buffer_init(128);
 752         buffer_fadd(
 753                 sql,
 754                 "%s %s %s;",
 755                 buffer_data(table_buf),
 756                 buffer_data(col_buf),
 757                 buffer_data(val_buf)
 758         );
 759         buffer_free(table_buf);
 760         buffer_free(col_buf);
 761         buffer_free(val_buf);
 762
 763         char* query = buffer_data(sql);
 764         buffer_free(sql);
 765
 766         osrfLogDebug(OSRF_LOG_MARK, "%s: Insert SQL [%s]", MODULENAME, query);
 767
 768
 769         dbi_result result = dbi_conn_query(writehandle, query);
 770
 771         jsonObject* obj = NULL;
 772
 773         if (!result) {
 774                 obj = jsonNewObject(NULL);
 775                 osrfLogError(
 776                         OSRF_LOG_MARK,
 777                         "%s ERROR inserting %s object using query [%s]",
 778                         MODULENAME,
 779                         osrfHashGet(meta, "fieldmapper"),
 780                         query
 781                 );
 782                 osrfAppSessionStatus(
 783                         ctx->session,
 784                         OSRF_STATUS_INTERNALSERVERERROR,
 785                         "osrfMethodException",
 786                         ctx->request,
 787                         "INSERT error -- please see the error log for more details"
 788                 );
 789                 *err = -1;
 790         } else {
 791
 792                 int pos = atoi(osrfHashGet( osrfHashGet(fields, pkey), "array_position" ));
 793                 char* id = jsonObjectToSimpleString(jsonObjectGetIndex(target, pos));
 794                 if (!id) {
 795                         unsigned long long new_id = dbi_conn_sequence_last(writehandle, seq);
 796                         growing_buffer* _id = buffer_init(10);
 797                         buffer_fadd(_id, "%lld", new_id);
 798                         id = buffer_data(_id);
 799                         buffer_free(_id);
 800                 }
 801
 802                 if (    !options
 803                         || !jsonObjectGetKey( options, "quiet")
 804                         || strcmp( jsonObjectToSimpleString(jsonObjectGetKey( options, "quiet")), "true" )
 805                 ) {
 806
 807                         jsonObject* fake_params = jsonParseString("[]");
 808                         jsonObjectPush(fake_params, jsonParseString("{}"));
 809
 810                         jsonObjectSetKey(
 811                                 jsonObjectGetIndex(fake_params, 0),
 812                                 osrfHashGet(meta, "primarykey"),
 813                                 jsonNewObject(id)
 814                         );
 815
 816                         jsonObject* list = doSearch( ctx,meta, fake_params, err);
 817
 818                         if(*err) {
 819                                 jsonObjectFree( fake_params );
 820                                 obj = jsonNULL;
 821                         } else {
 822                                 obj = jsonObjectClone( jsonObjectGetIndex(list, 0) );
 823                         }
 824
 825                         jsonObjectFree( list );
 826                         jsonObjectFree( fake_params );
 827
 828                 } else {
 829                         obj = jsonNewObject(id);
 830                 }
 831
 832         }
 833
 834         free(query);
 835
 836         return obj;
 837
 838 }
 839
 840
 841 jsonObject* doRetrieve(osrfMethodContext* ctx, int* err ) {
 842
 843         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
 844
 845         jsonObject* obj;
 846
 847         char* id = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
 848         jsonObject* order_hash = jsonObjectGetIndex(ctx->params, 1);
 849
 850         osrfLogDebug(
 851                 OSRF_LOG_MARK,
 852                 "%s retrieving %s object with id %s",
 853                 MODULENAME,
 854                 osrfHashGet(meta, "fieldmapper"),
 855                 id
 856         );
 857
 858         jsonObject* fake_params = jsonParseString("[]");
 859         jsonObjectPush(fake_params, jsonParseString("{}"));
 860
 861         jsonObjectSetKey(
 862                 jsonObjectGetIndex(fake_params, 0),
 863                 osrfHashGet(meta, "primarykey"),
 864                 jsonParseString(id)
 865         );
 866
 867         if (order_hash) jsonObjectPush(fake_params, jsonObjectClone(order_hash) );
 868
 869         jsonObject* list = doSearch( ctx,meta, fake_params, err);
 870
 871         if(*err) {
 872                 jsonObjectFree( fake_params );
 873                 return jsonNULL;
 874         }
 875
 876         obj = jsonObjectClone( jsonObjectGetIndex(list, 0) );
 877
 878         jsonObjectFree( list );
 879         jsonObjectFree( fake_params );
 880
 881         return obj;
 882 }
 883
 884 char* jsonNumberToDBString ( osrfHash* field, jsonObject* value ) {
 885         growing_buffer* val_buf = buffer_init(32);
 886
 887         if ( !strncmp(osrfHashGet(field, "datatype"), "INT", 3) ) {
 888                 if (value->type == JSON_NUMBER) buffer_fadd( val_buf, "%ld", (long)jsonObjectGetNumber(value) );
 889                 else buffer_fadd( val_buf, "%ld", atol(jsonObjectToSimpleString(value)) );
 890
 891         } else if ( !strcmp(osrfHashGet(field, "datatype"), "NUMERIC") ) {
 892                 if (value->type == JSON_NUMBER) buffer_fadd( val_buf, "%f",  jsonObjectGetNumber(value) );
 893                 else buffer_fadd( val_buf, "%f", atof(jsonObjectToSimpleString(value)) );
 894         }
 895
 896         char* pred = buffer_data(val_buf);
 897         buffer_free(val_buf);
 898
 899         return pred;
 900 }
 901
 902 char* searchINPredicate (osrfHash* field, jsonObject* node) {
 903         growing_buffer* sql_buf = buffer_init(32);
 904
 905         buffer_fadd(
 906                 sql_buf,
 907                 "%s IN (",
 908                 osrfHashGet(field, "name")
 909         );
 910
 911         int in_item_index = 0;
 912         int in_item_first = 1;
 913         jsonObject* in_item;
 914         while ( (in_item = jsonObjectGetIndex(node, in_item_index++)) ) {
 915
 916                 if (in_item_first)
 917                         in_item_first = 0;
 918                 else
 919                         buffer_add(sql_buf, ", ");
 920
 921                 if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
 922                         char* val = jsonNumberToDBString( field, in_item );
 923                         buffer_fadd( sql_buf, "%s", val );
 924                         free(val);
 925
 926                 } else {
 927                         char* key_string = jsonObjectToSimpleString(in_item);
 928                         if ( dbi_conn_quote_string(dbhandle, &key_string) ) {
 929                                 buffer_fadd( sql_buf, "%s", key_string );
 930                                 free(key_string);
 931                         } else {
 932                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, key_string);
 933                                 free(key_string);
 934                                 buffer_free(sql_buf);
 935                                 return NULL;
 936                         }
 937                 }
 938         }
 939
 940         buffer_add(
 941                 sql_buf,
 942                 ")"
 943         );
 944
 945         char* pred = buffer_data(sql_buf);
 946         buffer_free(sql_buf);
 947
 948         return pred;
 949 }
 950
 951 char* searchValueTransform( jsonObject* array ) {
 952         growing_buffer* sql_buf = buffer_init(32);
 953
 954         char* val = NULL;
 955         int func_item_index = 0;
 956         int func_item_first = 2;
 957         jsonObject* func_item;
 958         while ( (func_item = jsonObjectGetIndex(array, func_item_index++)) ) {
 959
 960                 val = jsonObjectToSimpleString(func_item);
 961
 962                 if (func_item_first == 2) {
 963                         buffer_fadd(sql_buf, "%s( ", val);
 964                         free(val);
 965                         func_item_first--;
 966                         continue;
 967                 }
 968
 969                 if (func_item_first)
 970                         func_item_first--;
 971                 else
 972                         buffer_add(sql_buf, ", ");
 973
 974                 if ( dbi_conn_quote_string(dbhandle, &val) ) {
 975                         buffer_fadd( sql_buf, "%s", val );
 976                         free(val);
 977                 } else {
 978                         osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, val);
 979                         free(val);
 980                         buffer_free(sql_buf);
 981                         return NULL;
 982                 }
 983         }
 984
 985         buffer_add(
 986                 sql_buf,
 987                 " )"
 988         );
 989
 990         char* pred = buffer_data(sql_buf);
 991         buffer_free(sql_buf);
 992
 993         return pred;
 994 }
 995
 996 char* searchFunctionPredicate (osrfHash* field, jsonObjectNode* node) {
 997         growing_buffer* sql_buf = buffer_init(32);
 998
 999         char* val = searchValueTransform(node->item);
1000
1001         buffer_fadd(
1002                 sql_buf,
1003                 "%s %s %s",
1004                 osrfHashGet(field, "name"),
1005                 node->key,
1006                 val
1007         );
1008
1009         char* pred = buffer_data(sql_buf);
1010         buffer_free(sql_buf);
1011         free(val);
1012
1013         return pred;
1014 }
1015
1016 char* searchFieldTransform (osrfHash* field, jsonObject* node) {
1017         growing_buffer* sql_buf = buffer_init(32);
1018
1019         char* field_transform = jsonObjectToSimpleString( jsonObjectGetKey( node, "transform" ) );
1020
1021         buffer_fadd(
1022                 sql_buf,
1023                 "%s(%s)",
1024                 field_transform,
1025                 osrfHashGet(field, "name")
1026         );
1027
1028         char* pred = buffer_data(sql_buf);
1029         buffer_free(sql_buf);
1030         free(field_transform);
1031
1032         return pred;
1033 }
1034
1035 char* searchFieldTransformPredicate (osrfHash* field, jsonObjectNode* node) {
1036         growing_buffer* sql_buf = buffer_init(32);
1037
1038         char* field_transform = searchFieldTransform( field, node->item );
1039         char* value = NULL;
1040
1041         if (jsonObjectGetKey( node->item, "value" )->type == JSON_ARRAY) {
1042                 value = searchValueTransform(jsonObjectGetKey( node->item, "value" ));
1043         } else if (jsonObjectGetKey( node->item, "value" )->type != JSON_NULL) {
1044                 if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1045                         value = jsonNumberToDBString( field, jsonObjectGetKey( node->item, "value" ) );
1046                 } else {
1047                         value = jsonObjectToSimpleString(jsonObjectGetKey( node->item, "value" ));
1048                         if ( !dbi_conn_quote_string(dbhandle, &value) ) {
1049                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, value);
1050                                 free(value);
1051                                 return NULL;
1052                         }
1053                 }
1054         }
1055
1056         buffer_fadd(
1057                 sql_buf,
1058                 "%s %s %s",
1059                 field_transform,
1060                 node->key,
1061                 value
1062         );
1063
1064         char* pred = buffer_data(sql_buf);
1065         buffer_free(sql_buf);
1066         free(field_transform);
1067
1068         return pred;
1069 }
1070
1071 char* searchSimplePredicate (const char* orig_op, osrfHash* field, jsonObject* node) {
1072
1073         char* val = NULL;
1074
1075         if (node->type != JSON_NULL) {
1076                 if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1077                         val = jsonNumberToDBString( field, node );
1078                 } else {
1079                         val = jsonObjectToSimpleString(node);
1080                 }
1081         }
1082
1083         char* pred = searchWriteSimplePredicate( field, osrfHashGet(field, "name"), orig_op, val );
1084
1085         if (val) free(val);
1086
1087         return pred;
1088 }
1089
1090 char* searchWriteSimplePredicate ( osrfHash* field, const char* left, const char* orig_op, const char* right ) {
1091
1092         char* val = NULL;
1093         char* op = NULL;
1094         if (right == NULL) {
1095                 val = strdup("NULL");
1096
1097                 if (strcmp( orig_op, "=" ))
1098                         op = strdup("IS NOT");
1099                 else
1100                         op = strdup("IS");
1101
1102         } else if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1103                 val = strdup(right);
1104                 op = strdup(orig_op);
1105
1106         } else {
1107                 val = strdup(right);
1108                 if ( !dbi_conn_quote_string(dbhandle, &val) ) {
1109                         osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, val);
1110                         free(val);
1111                         return NULL;
1112                 }
1113                 op = strdup(orig_op);
1114         }
1115
1116         growing_buffer* sql_buf = buffer_init(16);
1117         buffer_fadd( sql_buf, "%s %s %s", left, op, val );
1118         free(val);
1119         free(op);
1120
1121         char* pred = buffer_data(sql_buf);
1122         buffer_free(sql_buf);
1123
1124         return pred;
1125
1126 }
1127
1128 char* searchBETWEENPredicate (osrfHash* field, jsonObject* node) {
1129
1130         char* x_string;
1131         char* y_string;
1132
1133         if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1134                 x_string = jsonNumberToDBString(field, jsonObjectGetIndex(node,0));
1135                 y_string = jsonNumberToDBString(field, jsonObjectGetIndex(node,1));
1136
1137         } else {
1138                 x_string = jsonObjectToSimpleString(jsonObjectGetIndex(node,0));
1139                 y_string = jsonObjectToSimpleString(jsonObjectGetIndex(node,1));
1140                 if ( !(dbi_conn_quote_string(dbhandle, &x_string) && dbi_conn_quote_string(dbhandle, &y_string)) ) {
1141                         osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key strings [%s] and [%s]", MODULENAME, x_string, y_string);
1142                         free(x_string);
1143                         free(y_string);
1144                         return NULL;
1145                 }
1146         }
1147
1148         growing_buffer* sql_buf = buffer_init(32);
1149         buffer_fadd( sql_buf, "%s BETWEEN %s AND %s", osrfHashGet(field, "name"), x_string, y_string );
1150         free(x_string);
1151         free(y_string);
1152
1153         char* pred = buffer_data(sql_buf);
1154         buffer_free(sql_buf);
1155
1156         return pred;
1157 }
1158
1159 char* searchPredicate ( osrfHash* field, jsonObject* node ) {
1160
1161         char* pred = NULL;
1162         if (node->type == JSON_ARRAY) { // equality IN search
1163                 pred = searchINPredicate( field, node );
1164         } else if (node->type == JSON_HASH) { // non-equality search
1165                 jsonObjectNode* pred_node;
1166                 jsonObjectIterator* pred_itr = jsonNewObjectIterator( node );
1167                 while ( (pred_node = jsonObjectIteratorNext( pred_itr )) ) {
1168                         if ( !(strcasecmp( pred_node->key,"between" )) )
1169                                 pred = searchBETWEENPredicate( field, pred_node->item );
1170                         else if ( !(strcasecmp( pred_node->key,"in" )) )
1171                                 pred = searchINPredicate( field, pred_node->item );
1172                         else if ( pred_node->item->type == JSON_ARRAY )
1173                                 pred = searchFunctionPredicate( field, pred_node );
1174                         else if ( pred_node->item->type == JSON_HASH )
1175                                 pred = searchFieldTransformPredicate( field, pred_node );
1176                         else
1177                                 pred = searchSimplePredicate( pred_node->key, field, pred_node->item );
1178
1179                         break;
1180                 }
1181         } else if (node->type == JSON_NULL) { // IS NULL search
1182                 growing_buffer* _p = buffer_init(16);
1183                 buffer_fadd(
1184                         _p,
1185                         "%s IS NULL",
1186                         osrfHashGet(field, "name")
1187                 );
1188                 pred = buffer_data(_p);
1189                 buffer_free(_p);
1190         } else { // equality search
1191                 pred = searchSimplePredicate( "=", field, node );
1192         }
1193
1194         return pred;
1195
1196 }
1197
1198 char* buildSELECT ( jsonObject* search_hash, jsonObject* order_hash, osrfHash* meta ) {
1199
1200         osrfHash* links = osrfHashGet(meta, "links");
1201         osrfHash* fields = osrfHashGet(meta, "fields");
1202         char* core_class = osrfHashGet(meta, "classname");
1203
1204         jsonObjectNode* node = NULL;
1205         jsonObjectNode* snode = NULL;
1206         jsonObject* _tmp;
1207
1208         growing_buffer* sql_buf = buffer_init(128);
1209         buffer_add(sql_buf, "SELECT");
1210
1211         int first = 1;
1212         if ( (_tmp = jsonObjectGetKey( order_hash, "select" )) ) {
1213
1214                 jsonObjectIterator* class_itr = jsonNewObjectIterator( _tmp );
1215                 while ( (snode = jsonObjectIteratorNext( class_itr )) ) {
1216
1217                         osrfHash* idlClass = osrfHashGet( idl, snode->key );
1218                         if (!idlClass) continue;
1219                         char* cname = osrfHashGet(idlClass, "classname");
1220
1221                         if (strcmp(core_class,snode->key)) continue;
1222
1223                         jsonObjectIterator* select_itr = jsonNewObjectIterator( snode->item );
1224                         while ( (node = jsonObjectIteratorNext( select_itr )) ) {
1225                                 osrfHash* field = osrfHashGet( osrfHashGet( idlClass, "fields" ), jsonObjectToSimpleString(node->item) );
1226                                 char* fname = osrfHashGet(field, "name");
1227
1228                                 if (!field) continue;
1229
1230                                 if (first) {
1231                                         first = 0;
1232                                 } else {
1233                                         buffer_add(sql_buf, ",");
1234                                 }
1235
1236                                 buffer_fadd(sql_buf, " \"%s\".%s", cname, fname, cname, fname);
1237                         }
1238                 }
1239
1240                 if (first) buffer_add(sql_buf, " *");
1241
1242         } else {
1243                 buffer_add(sql_buf, " *");
1244         }
1245
1246         buffer_fadd(sql_buf, " FROM %s AS \"%s\" WHERE ", osrfHashGet(meta, "tablename"), core_class );
1247
1248
1249         char* pred;
1250         first = 1;
1251         jsonObjectIterator* search_itr = jsonNewObjectIterator( search_hash );
1252         while ( (node = jsonObjectIteratorNext( search_itr )) ) {
1253                 osrfHash* field = osrfHashGet( fields, node->key );
1254
1255                 if (!field) continue;
1256
1257                 if (first) {
1258                         first = 0;
1259                 } else {
1260                         buffer_add(sql_buf, " AND ");
1261                 }
1262
1263                 pred = searchPredicate( field, node->item);
1264                 buffer_fadd( sql_buf, "%s", pred );
1265                 free(pred);
1266         }
1267
1268         jsonObjectIteratorFree(search_itr);
1269
1270         if (order_hash) {
1271                 char* string;
1272                 if ( (_tmp = jsonObjectGetKey( jsonObjectGetKey( order_hash, "order_by" ), core_class ) ) ){
1273                         string = jsonObjectToSimpleString(_tmp);
1274                         buffer_fadd(
1275                                 sql_buf,
1276                                 " ORDER BY %s",
1277                                 string
1278                         );
1279                         free(string);
1280                 }
1281
1282                 if ( (_tmp = jsonObjectGetKey( order_hash, "limit" )) ){
1283                         string = jsonObjectToSimpleString(_tmp);
1284                         buffer_fadd(
1285                                 sql_buf,
1286                                 " LIMIT %d",
1287                                 atoi(string)
1288                         );
1289                         free(string);
1290                 }
1291
1292                 _tmp = jsonObjectGetKey( order_hash, "offset" );
1293                 if (_tmp) {
1294                         string = jsonObjectToSimpleString(_tmp);
1295                         buffer_fadd(
1296                                 sql_buf,
1297                                 " OFFSET %d",
1298                                 atoi(string)
1299                         );
1300                         free(string);
1301                 }
1302         }
1303
1304         buffer_add(sql_buf, ";");
1305
1306         char* sql = buffer_data(sql_buf);
1307         buffer_free(sql_buf);
1308
1309         return sql;
1310 }
1311
1312 jsonObject* doSearch ( osrfMethodContext* ctx, osrfHash* meta, jsonObject* params, int* err ) {
1313
1314         // XXX for now...
1315         dbhandle = writehandle;
1316
1317         osrfHash* links = osrfHashGet(meta, "links");
1318         osrfHash* fields = osrfHashGet(meta, "fields");
1319         char* core_class = osrfHashGet(meta, "classname");
1320
1321         jsonObject* _tmp;
1322         jsonObject* obj;
1323         jsonObject* search_hash = jsonObjectGetIndex(params, 0);
1324         jsonObject* order_hash = jsonObjectGetIndex(params, 1);
1325
1326         char* sql = buildSELECT( search_hash, order_hash, meta );
1327
1328         osrfLogDebug(OSRF_LOG_MARK, "%s SQL =  %s", MODULENAME, sql);
1329         dbi_result result = dbi_conn_query(dbhandle, sql);
1330
1331         jsonObject* res_list = jsonParseString("[]");
1332         if(result) {
1333                 osrfLogDebug(OSRF_LOG_MARK, "Query returned with no errors");
1334
1335                 if (dbi_result_first_row(result)) {
1336                         /* JSONify the result */
1337                         osrfLogDebug(OSRF_LOG_MARK, "Query returned at least one row");
1338                         do {
1339                                 obj = oilsMakeJSONFromResult( result, meta );
1340                                 jsonObjectPush(res_list, obj);
1341                         } while (dbi_result_next_row(result));
1342                 } else {
1343                         osrfLogDebug(OSRF_LOG_MARK, "%s returned no results for query %s", MODULENAME, sql);
1344                 }
1345
1346                 /* clean up the query */
1347                 dbi_result_free(result);
1348
1349         } else {
1350                 osrfLogError(OSRF_LOG_MARK, "%s: Error retrieving %s with query [%s]", MODULENAME, osrfHashGet(meta, "fieldmapper"), sql);
1351                 osrfAppSessionStatus(
1352                         ctx->session,
1353                         OSRF_STATUS_INTERNALSERVERERROR,
1354                         "osrfMethodException",
1355                         ctx->request,
1356                         "Severe query error -- see error log for more details"
1357                 );
1358                 *err = -1;
1359                 free(sql);
1360                 jsonObjectFree(res_list);
1361                 return jsonNULL;
1362
1363         }
1364
1365         free(sql);
1366
1367         if (res_list->size && order_hash) {
1368                 _tmp = jsonObjectGetKey( order_hash, "flesh" );
1369                 if (_tmp) {
1370                         int x = (int)jsonObjectGetNumber(_tmp);
1371
1372                         jsonObject* flesh_blob = NULL;
1373                         if ((flesh_blob = jsonObjectGetKey( order_hash, "flesh_fields" )) && x > 0) {
1374
1375                                 flesh_blob = jsonObjectClone( flesh_blob );
1376                                 jsonObject* flesh_fields = jsonObjectGetKey( flesh_blob, core_class );
1377
1378                                 osrfStringArray* link_fields = NULL;
1379
1380                                 if (flesh_fields) {
1381                                         if (flesh_fields->size == 1) {
1382                                                 char* _t = jsonObjectToSimpleString( jsonObjectGetIndex( flesh_fields, 0 ) );
1383                                                 if (!strcmp(_t,"*")) link_fields = osrfHashKeys( links );
1384                                                 free(_t);
1385                                         }
1386
1387                                         if (!link_fields) {
1388                                                 jsonObjectNode* _f;
1389                                                 link_fields = osrfNewStringArray(1);
1390                                                 jsonObjectIterator* _i = jsonNewObjectIterator( flesh_fields );
1391                                                 while ((_f = jsonObjectIteratorNext( _i ))) {
1392                                                         osrfStringArrayAdd( link_fields, jsonObjectToSimpleString( _f->item ) );
1393                                                 }
1394                                         }
1395                                 }
1396
1397                                 jsonObjectNode* cur;
1398                                 jsonObjectIterator* itr = jsonNewObjectIterator( res_list );
1399                                 while ((cur = jsonObjectIteratorNext( itr ))) {
1400
1401                                         int i = 0;
1402                                         char* link_field;
1403
1404                                         while ( (link_field = osrfStringArrayGetString(link_fields, i++)) ) {
1405
1406                                                 osrfLogDebug(OSRF_LOG_MARK, "Starting to flesh %s", link_field);
1407
1408                                                 osrfHash* kid_link = osrfHashGet(links, link_field);
1409                                                 if (!kid_link) continue;
1410
1411                                                 osrfHash* field = osrfHashGet(fields, link_field);
1412                                                 if (!field) continue;
1413
1414                                                 osrfHash* value_field = field;
1415
1416                                                 osrfHash* kid_idl = osrfHashGet(idl, osrfHashGet(kid_link, "class"));
1417                                                 if (!kid_idl) continue;
1418
1419                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "has_many" ))) { // has_many
1420                                                         value_field = osrfHashGet( fields, osrfHashGet(meta, "primarykey") );
1421                                                 }
1422
1423                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "might_have" ))) { // might_have
1424                                                         value_field = osrfHashGet( fields, osrfHashGet(meta, "primarykey") );
1425                                                 }
1426
1427                                                 osrfStringArray* link_map = osrfHashGet( kid_link, "map" );
1428
1429                                                 if (link_map->size > 0) {
1430                                                         jsonObject* _kid_key = jsonParseString("[]");
1431                                                         jsonObjectPush(
1432                                                                 _kid_key,
1433                                                                 jsonNewObject( osrfStringArrayGetString( link_map, 0 ) )
1434                                                         );
1435
1436                                                         jsonObjectSetKey(
1437                                                                 flesh_blob,
1438                                                                 osrfHashGet(kid_link, "class"),
1439                                                                 _kid_key
1440                                                         );
1441                                                 };
1442
1443                                                 osrfLogDebug(
1444                                                         OSRF_LOG_MARK,
1445                                                         "Link field: %s, remote class: %s, fkey: %s, reltype: %s",
1446                                                         osrfHashGet(kid_link, "field"),
1447                                                         osrfHashGet(kid_link, "class"),
1448                                                         osrfHashGet(kid_link, "key"),
1449                                                         osrfHashGet(kid_link, "reltype")
1450                                                 );
1451
1452                                                 jsonObject* fake_params = jsonParseString("[]");
1453                                                 jsonObjectPush(fake_params, jsonParseString("{}")); // search hash
1454                                                 jsonObjectPush(fake_params, jsonParseString("{}")); // order/flesh hash
1455
1456                                                 osrfLogDebug(OSRF_LOG_MARK, "Creating dummy params object...");
1457
1458                                                 char* search_key =
1459                                                 jsonObjectToSimpleString(
1460                                                         jsonObjectGetIndex(
1461                                                                 cur->item,
1462                                                                 atoi( osrfHashGet(value_field, "array_position") )
1463                                                         )
1464                                                 );
1465
1466                                                 if (!search_key) {
1467                                                         osrfLogDebug(OSRF_LOG_MARK, "Nothing to search for!");
1468                                                         continue;
1469                                                 }
1470
1471                                                 jsonObjectSetKey(
1472                                                         jsonObjectGetIndex(fake_params, 0),
1473                                                         osrfHashGet(kid_link, "key"),
1474                                                         jsonNewObject( search_key )
1475                                                 );
1476
1477                                                 free(search_key);
1478
1479
1480                                                 jsonObjectSetKey(
1481                                                         jsonObjectGetIndex(fake_params, 1),
1482                                                         "flesh",
1483                                                         jsonNewNumberObject( (double)(x - 1 + link_map->size) )
1484                                                 );
1485
1486                                                 if (flesh_blob)
1487                                                         jsonObjectSetKey( jsonObjectGetIndex(fake_params, 1), "flesh_fields", jsonObjectClone(flesh_blob) );
1488
1489                                                 if (jsonObjectGetKey(order_hash, "order_by")) {
1490                                                         jsonObjectSetKey(
1491                                                                 jsonObjectGetIndex(fake_params, 1),
1492                                                                 "order_by",
1493                                                                 jsonObjectClone(jsonObjectGetKey(order_hash, "order_by"))
1494                                                         );
1495                                                 }
1496
1497                                                 if (jsonObjectGetKey(order_hash, "select")) {
1498                                                         jsonObjectSetKey(
1499                                                                 jsonObjectGetIndex(fake_params, 1),
1500                                                                 "select",
1501                                                                 jsonObjectClone(jsonObjectGetKey(order_hash, "select"))
1502                                                         );
1503                                                 }
1504
1505                                                 jsonObject* kids = doSearch(ctx, kid_idl, fake_params, err);
1506
1507                                                 if(*err) {
1508                                                         jsonObjectFree( fake_params );
1509                                                         osrfStringArrayFree(link_fields);
1510                                                         jsonObjectIteratorFree(itr);
1511                                                         jsonObjectFree(res_list);
1512                                                         return jsonNULL;
1513                                                 }
1514
1515                                                 osrfLogDebug(OSRF_LOG_MARK, "Search for %s return %d linked objects", osrfHashGet(kid_link, "class"), kids->size);
1516
1517                                                 jsonObject* X = NULL;
1518                                                 if ( link_map->size > 0 && kids->size > 0 ) {
1519                                                         X = kids;
1520                                                         kids = jsonParseString("[]");
1521
1522                                                         jsonObjectNode* _k_node;
1523                                                         jsonObjectIterator* _k = jsonNewObjectIterator( X );
1524                                                         while ((_k_node = jsonObjectIteratorNext( _k ))) {
1525                                                                 jsonObjectPush(
1526                                                                         kids,
1527                                                                         jsonObjectClone(
1528                                                                                 jsonObjectGetIndex(
1529                                                                                         _k_node->item,
1530                                                                                         (unsigned long)atoi(
1531                                                                                                 osrfHashGet(
1532                                                                                                         osrfHashGet(
1533                                                                                                                 osrfHashGet(
1534                                                                                                                         osrfHashGet(
1535                                                                                                                                 idl,
1536                                                                                                                                 osrfHashGet(kid_link, "class")
1537                                                                                                                         ),
1538                                                                                                                         "fields"
1539                                                                                                                 ),
1540                                                                                                                 osrfStringArrayGetString( link_map, 0 )
1541                                                                                                         ),
1542                                                                                                         "array_position"
1543                                                                                                 )
1544                                                                                         )
1545                                                                                 )
1546                                                                         )
1547                                                                 );
1548                                                         }
1549                                                 }
1550
1551                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "has_a" )) || !(strcmp( osrfHashGet(kid_link, "reltype"), "might_have" ))) {
1552                                                         osrfLogDebug(OSRF_LOG_MARK, "Storing fleshed objects in %s", osrfHashGet(kid_link, "field"));
1553                                                         jsonObjectSetIndex(
1554                                                                 cur->item,
1555                                                                 (unsigned long)atoi( osrfHashGet( field, "array_position" ) ),
1556                                                                 jsonObjectClone( jsonObjectGetIndex(kids, 0) )
1557                                                         );
1558                                                 }
1559
1560                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "has_many" ))) { // has_many
1561                                                         osrfLogDebug(OSRF_LOG_MARK, "Storing fleshed objects in %s", osrfHashGet(kid_link, "field"));
1562                                                         jsonObjectSetIndex(
1563                                                                 cur->item,
1564                                                                 (unsigned long)atoi( osrfHashGet( field, "array_position" ) ),
1565                                                                 jsonObjectClone( kids )
1566                                                         );
1567                                                 }
1568
1569                                                 if (X) {
1570                                                         jsonObjectFree(kids);
1571                                                         kids = X;
1572                                                 }
1573
1574                                                 jsonObjectFree( kids );
1575                                                 jsonObjectFree( fake_params );
1576
1577                                                 osrfLogDebug(OSRF_LOG_MARK, "Fleshing of %s complete", osrfHashGet(kid_link, "field"));
1578                                                 osrfLogDebug(OSRF_LOG_MARK, "%s", jsonObjectToJSON(cur->item));
1579
1580                                         }
1581                                 }
1582                                 jsonObjectFree( flesh_blob );
1583                                 osrfStringArrayFree(link_fields);
1584                                 jsonObjectIteratorFree(itr);
1585                         }
1586                 }
1587         }
1588
1589         return res_list;
1590 }
1591
1592
1593 jsonObject* doUpdate(osrfMethodContext* ctx, int* err ) {
1594
1595         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
1596         jsonObject* target = jsonObjectGetIndex(ctx->params, 0);
1597
1598         if (!verifyObjectClass(ctx, target)) {
1599                 *err = -1;
1600                 return jsonNULL;
1601         }
1602
1603         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
1604                 osrfAppSessionStatus(
1605                         ctx->session,
1606                         OSRF_STATUS_BADREQUEST,
1607                         "osrfMethodException",
1608                         ctx->request,
1609                         "No active transaction -- required for UPDATE"
1610                 );
1611                 *err = -1;
1612                 return jsonNULL;
1613         }
1614
1615         dbhandle = writehandle;
1616
1617         char* trans_id = osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" );
1618
1619         // Set the last_xact_id
1620         osrfHash* last_xact_id;
1621         if ((last_xact_id = oilsIDLFindPath("/%s/fields/last_xact_id", target->classname))) {
1622                 int index = atoi( osrfHashGet(last_xact_id, "array_position") );
1623                 osrfLogDebug(OSRF_LOG_MARK, "Setting last_xact_id to %s on %s at position %d", trans_id, target->classname, index);
1624                 jsonObjectSetIndex(target, index, jsonNewObject(trans_id));
1625         }
1626
1627         char* pkey = osrfHashGet(meta, "primarykey");
1628         osrfHash* fields = osrfHashGet(meta, "fields");
1629
1630         char* id =
1631                 jsonObjectToSimpleString(
1632                         jsonObjectGetIndex(
1633                                 target,
1634                                 atoi( osrfHashGet( osrfHashGet( fields, pkey ), "array_position" ) )
1635                         )
1636                 );
1637
1638         osrfLogDebug(
1639                 OSRF_LOG_MARK,
1640                 "%s updating %s object with %s = %s",
1641                 MODULENAME,
1642                 osrfHashGet(meta, "fieldmapper"),
1643                 pkey,
1644                 id
1645         );
1646
1647         growing_buffer* sql = buffer_init(128);
1648         buffer_fadd(sql,"UPDATE %s SET", osrfHashGet(meta, "tablename"));
1649
1650         int i = 0;
1651         int first = 1;
1652         char* field_name;
1653         osrfStringArray* field_list = osrfHashKeys( fields );
1654         while ( (field_name = osrfStringArrayGetString(field_list, i++)) ) {
1655
1656                 osrfHash* field = osrfHashGet( fields, field_name );
1657
1658                 if(!( strcmp( field_name, pkey ) )) continue;
1659                 if(!( strcmp( osrfHashGet(osrfHashGet(fields,field_name), "virtual"), "true" ) )) continue;
1660
1661                 int pos = atoi(osrfHashGet(field, "array_position"));
1662                 char* value = jsonObjectToSimpleString( jsonObjectGetIndex( target, pos ) );
1663
1664                 osrfLogDebug( OSRF_LOG_MARK, "Updating %s object with %s = %s", osrfHashGet(meta, "fieldmapper"), field_name, value);
1665
1666                 if (!jsonObjectGetIndex(target, pos) || jsonObjectGetIndex(target, pos)->type == JSON_NULL) {
1667                         if ( !(!( strcmp( osrfHashGet(meta, "classname"), "au" ) ) && !( strcmp( field_name, "passwd" ) )) ) { // arg at the special case!
1668                                 if (first) first = 0;
1669                                 else buffer_add(sql, ",");
1670                                 buffer_fadd( sql, " %s = NULL", field_name );
1671                         }
1672
1673                 } else if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1674                         if (first) first = 0;
1675                         else buffer_add(sql, ",");
1676
1677                         if ( !strncmp(osrfHashGet(field, "datatype"), "INT", (size_t)3) ) {
1678                                 buffer_fadd( sql, " %s = %ld", field_name, atol(value) );
1679                         } else if ( !strcmp(osrfHashGet(field, "datatype"), "NUMERIC") ) {
1680                                 buffer_fadd( sql, " %s = %f", field_name, atof(value) );
1681                         }
1682
1683                         osrfLogDebug( OSRF_LOG_MARK, "%s is of type %s", field_name, osrfHashGet(field, "datatype"));
1684
1685                 } else {
1686                         if ( dbi_conn_quote_string(dbhandle, &value) ) {
1687                                 if (first) first = 0;
1688                                 else buffer_add(sql, ",");
1689                                 buffer_fadd( sql, " %s = %s", field_name, value );
1690
1691                         } else {
1692                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting string [%s]", MODULENAME, value);
1693                                 osrfAppSessionStatus(
1694                                         ctx->session,
1695                                         OSRF_STATUS_INTERNALSERVERERROR,
1696                                         "osrfMethodException",
1697                                         ctx->request,
1698                                         "Error quoting string -- please see the error log for more details"
1699                                 );
1700                                 free(value);
1701                                 free(id);
1702                                 buffer_free(sql);
1703                                 *err = -1;
1704                                 return jsonNULL;
1705                         }
1706                 }
1707
1708                 free(value);
1709
1710         }
1711
1712         jsonObject* obj = jsonParseString(id);
1713
1714         if ( strcmp( osrfHashGet( osrfHashGet( osrfHashGet(meta, "fields"), pkey ), "primitive" ), "number" ) )
1715                 dbi_conn_quote_string(dbhandle, &id);
1716
1717         buffer_fadd( sql, " WHERE %s = %s;", pkey, id );
1718
1719         char* query = buffer_data(sql);
1720         buffer_free(sql);
1721
1722         osrfLogDebug(OSRF_LOG_MARK, "%s: Update SQL [%s]", MODULENAME, query);
1723
1724         dbi_result result = dbi_conn_query(dbhandle, query);
1725         free(query);
1726
1727         if (!result) {
1728                 jsonObjectFree(obj);
1729                 obj = jsonNewObject(NULL);
1730                 osrfLogError(
1731                         OSRF_LOG_MARK,
1732                         "%s ERROR updating %s object with %s = %s",
1733                         MODULENAME,
1734                         osrfHashGet(meta, "fieldmapper"),
1735                         pkey,
1736                         id
1737                 );
1738         }
1739
1740         free(id);
1741
1742         return obj;
1743 }
1744
1745 jsonObject* doDelete(osrfMethodContext* ctx, int* err ) {
1746
1747         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
1748
1749         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
1750                 osrfAppSessionStatus(
1751                         ctx->session,
1752                         OSRF_STATUS_BADREQUEST,
1753                         "osrfMethodException",
1754                         ctx->request,
1755                         "No active transaction -- required for DELETE"
1756                 );
1757                 *err = -1;
1758                 return jsonNULL;
1759         }
1760
1761         dbhandle = writehandle;
1762
1763         jsonObject* obj;
1764
1765         char* pkey = osrfHashGet(meta, "primarykey");
1766
1767         char* id;
1768         if (jsonObjectGetIndex(ctx->params, 0)->classname) {
1769                 if (!verifyObjectClass(ctx, jsonObjectGetIndex( ctx->params, 0 ))) {
1770                         *err = -1;
1771                         return jsonNULL;
1772                 }
1773
1774                 id = jsonObjectToSimpleString(
1775                         jsonObjectGetIndex(
1776                                 jsonObjectGetIndex(ctx->params, 0),
1777                                 atoi( osrfHashGet( osrfHashGet( osrfHashGet(meta, "fields"), pkey ), "array_position") )
1778                         )
1779                 );
1780         } else {
1781                 id = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
1782         }
1783
1784         osrfLogDebug(
1785                 OSRF_LOG_MARK,
1786                 "%s deleting %s object with %s = %s",
1787                 MODULENAME,
1788                 osrfHashGet(meta, "fieldmapper"),
1789                 pkey,
1790                 id
1791         );
1792
1793         obj = jsonParseString(id);
1794
1795         if ( strcmp( osrfHashGet( osrfHashGet( osrfHashGet(meta, "fields"), pkey ), "primitive" ), "number" ) )
1796                 dbi_conn_quote_string(writehandle, &id);
1797
1798         dbi_result result = dbi_conn_queryf(writehandle, "DELETE FROM %s WHERE %s = %s;", osrfHashGet(meta, "tablename"), pkey, id);
1799
1800         if (!result) {
1801                 jsonObjectFree(obj);
1802                 obj = jsonNewObject(NULL);
1803                 osrfLogError(
1804                         OSRF_LOG_MARK,
1805                         "%s ERROR deleting %s object with %s = %s",
1806                         MODULENAME,
1807                         osrfHashGet(meta, "fieldmapper"),
1808                         pkey,
1809                         id
1810                 );
1811         }
1812
1813         free(id);
1814
1815         return obj;
1816
1817 }
1818
1819
1820 jsonObject* oilsMakeJSONFromResult( dbi_result result, osrfHash* meta) {
1821         if(!(result && meta)) return jsonNULL;
1822
1823         jsonObject* object = jsonParseString("[]");
1824         jsonObjectSetClass(object, osrfHashGet(meta, "classname"));
1825
1826         osrfHash* fields = osrfHashGet(meta, "fields");
1827
1828         osrfLogInternal(OSRF_LOG_MARK, "Setting object class to %s ", object->classname);
1829
1830         osrfHash* _f;
1831         time_t _tmp_dt;
1832         char dt_string[256];
1833         struct tm gmdt;
1834
1835         int fmIndex;
1836         int columnIndex = 1;
1837         int attr;
1838         unsigned short type;
1839         const char* columnName;
1840
1841         /* cycle through the column list */
1842         while( (columnName = dbi_result_get_field_name(result, columnIndex++)) ) {
1843
1844                 osrfLogInternal(OSRF_LOG_MARK, "Looking for column named [%s]...", (char*)columnName);
1845
1846                 fmIndex = -1; // reset the position
1847
1848                 /* determine the field type and storage attributes */
1849                 type = dbi_result_get_field_type(result, columnName);
1850                 attr = dbi_result_get_field_attribs(result, columnName);
1851
1852                 /* fetch the fieldmapper index */
1853                 if( (_f = osrfHashGet(fields, (char*)columnName)) ) {
1854                         char* virt = (char*)osrfHashGet(_f, "virtual");
1855                         char* pos = (char*)osrfHashGet(_f, "array_position");
1856
1857                         if ( !virt || !pos || !(strcmp( virt, "true" )) ) continue;
1858
1859                         fmIndex = atoi( pos );
1860                         osrfLogInternal(OSRF_LOG_MARK, "... Found column at position [%s]...", pos);
1861                 } else {
1862                         continue;
1863                 }
1864
1865                 if (dbi_result_field_is_null(result, columnName)) {
1866                         jsonObjectSetIndex( object, fmIndex, jsonNewObject(NULL) );
1867                 } else {
1868
1869                         switch( type ) {
1870
1871                                 case DBI_TYPE_INTEGER :
1872
1873                                         if( attr & DBI_INTEGER_SIZE8 )
1874                                                 jsonObjectSetIndex( object, fmIndex,
1875                                                         jsonNewNumberObject(dbi_result_get_longlong(result, columnName)));
1876                                         else
1877                                                 jsonObjectSetIndex( object, fmIndex,
1878                                                         jsonNewNumberObject(dbi_result_get_long(result, columnName)));
1879
1880                                         break;
1881
1882                                 case DBI_TYPE_DECIMAL :
1883                                         jsonObjectSetIndex( object, fmIndex,
1884                                                         jsonNewNumberObject(dbi_result_get_double(result, columnName)));
1885                                         break;
1886
1887                                 case DBI_TYPE_STRING :
1888
1889
1890                                         jsonObjectSetIndex(
1891                                                 object,
1892                                                 fmIndex,
1893                                                 jsonNewObject( dbi_result_get_string(result, columnName) )
1894                                         );
1895
1896                                         break;
1897
1898                                 case DBI_TYPE_DATETIME :
1899
1900                                         memset(dt_string, '\0', 256);
1901                                         memset(&gmdt, '\0', sizeof(gmdt));
1902                                         memset(&_tmp_dt, '\0', sizeof(_tmp_dt));
1903
1904                                         _tmp_dt = dbi_result_get_datetime(result, columnName);
1905
1906                                         localtime_r( &_tmp_dt, &gmdt );
1907
1908                                         if (!(attr & DBI_DATETIME_DATE)) {
1909                                                 strftime(dt_string, 255, "%T", &gmdt);
1910                                         } else if (!(attr & DBI_DATETIME_TIME)) {
1911                                                 strftime(dt_string, 255, "%F", &gmdt);
1912                                         } else {
1913                                                 strftime(dt_string, 255, "%FT%T%z", &gmdt);
1914                                         }
1915
1916                                         jsonObjectSetIndex( object, fmIndex, jsonNewObject(dt_string) );
1917
1918                                         break;
1919
1920                                 case DBI_TYPE_BINARY :
1921                                         osrfLogError( OSRF_LOG_MARK,
1922                                                 "Can't do binary at column %s : index %d", columnName, columnIndex - 1);
1923                         }
1924                 }
1925         }
1926
1927         return object;
1928 }
1929