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*, osrfMethodContext* );
  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, osrfMethodContext* ctx ) {
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) {
1256                         osrfLogError(
1257                                 OSRF_LOG_MARK,
1258                                 "%s: Attempt to reference non-existant column %s on table %s",
1259                                 MODULENAME,
1260                                 node->key,
1261                                 osrfHashGet(meta, "tablename")
1262                         );
1263                         osrfAppSessionStatus(
1264                                 ctx->session,
1265                                 OSRF_STATUS_INTERNALSERVERERROR,
1266                                 "osrfMethodException",
1267                                 ctx->request,
1268                                 "Severe query error -- see error log for more details"
1269                         );
1270                         buffer_free(sql_buf);
1271                         return NULL;
1272                 }
1273
1274                 if (first) {
1275                         first = 0;
1276                 } else {
1277                         buffer_add(sql_buf, " AND ");
1278                 }
1279
1280                 pred = searchPredicate( field, node->item);
1281                 buffer_fadd( sql_buf, "%s", pred );
1282                 free(pred);
1283         }
1284
1285         jsonObjectIteratorFree(search_itr);
1286
1287         if (order_hash) {
1288                 char* string;
1289                 if ( (_tmp = jsonObjectGetKey( jsonObjectGetKey( order_hash, "order_by" ), core_class ) ) ){
1290                         string = jsonObjectToSimpleString(_tmp);
1291                         buffer_fadd(
1292                                 sql_buf,
1293                                 " ORDER BY %s",
1294                                 string
1295                         );
1296                         free(string);
1297                 }
1298
1299                 if ( (_tmp = jsonObjectGetKey( order_hash, "limit" )) ){
1300                         string = jsonObjectToSimpleString(_tmp);
1301                         buffer_fadd(
1302                                 sql_buf,
1303                                 " LIMIT %d",
1304                                 atoi(string)
1305                         );
1306                         free(string);
1307                 }
1308
1309                 _tmp = jsonObjectGetKey( order_hash, "offset" );
1310                 if (_tmp) {
1311                         string = jsonObjectToSimpleString(_tmp);
1312                         buffer_fadd(
1313                                 sql_buf,
1314                                 " OFFSET %d",
1315                                 atoi(string)
1316                         );
1317                         free(string);
1318                 }
1319         }
1320
1321         buffer_add(sql_buf, ";");
1322
1323         char* sql = buffer_data(sql_buf);
1324         buffer_free(sql_buf);
1325
1326         return sql;
1327 }
1328
1329 jsonObject* doSearch ( osrfMethodContext* ctx, osrfHash* meta, jsonObject* params, int* err ) {
1330
1331         // XXX for now...
1332         dbhandle = writehandle;
1333
1334         osrfHash* links = osrfHashGet(meta, "links");
1335         osrfHash* fields = osrfHashGet(meta, "fields");
1336         char* core_class = osrfHashGet(meta, "classname");
1337
1338         jsonObject* _tmp;
1339         jsonObject* obj;
1340         jsonObject* search_hash = jsonObjectGetIndex(params, 0);
1341         jsonObject* order_hash = jsonObjectGetIndex(params, 1);
1342
1343         char* sql = buildSELECT( search_hash, order_hash, meta, ctx );
1344         if (!sql) {
1345                 *err = -1;
1346                 return NULL;
1347         }
1348
1349         osrfLogDebug(OSRF_LOG_MARK, "%s SQL =  %s", MODULENAME, sql);
1350         dbi_result result = dbi_conn_query(dbhandle, sql);
1351
1352         jsonObject* res_list = jsonParseString("[]");
1353         if(result) {
1354                 osrfLogDebug(OSRF_LOG_MARK, "Query returned with no errors");
1355
1356                 if (dbi_result_first_row(result)) {
1357                         /* JSONify the result */
1358                         osrfLogDebug(OSRF_LOG_MARK, "Query returned at least one row");
1359                         do {
1360                                 obj = oilsMakeJSONFromResult( result, meta );
1361                                 jsonObjectPush(res_list, obj);
1362                         } while (dbi_result_next_row(result));
1363                 } else {
1364                         osrfLogDebug(OSRF_LOG_MARK, "%s returned no results for query %s", MODULENAME, sql);
1365                 }
1366
1367                 /* clean up the query */
1368                 dbi_result_free(result);
1369
1370         } else {
1371                 osrfLogError(OSRF_LOG_MARK, "%s: Error retrieving %s with query [%s]", MODULENAME, osrfHashGet(meta, "fieldmapper"), sql);
1372                 osrfAppSessionStatus(
1373                         ctx->session,
1374                         OSRF_STATUS_INTERNALSERVERERROR,
1375                         "osrfMethodException",
1376                         ctx->request,
1377                         "Severe query error -- see error log for more details"
1378                 );
1379                 *err = -1;
1380                 free(sql);
1381                 jsonObjectFree(res_list);
1382                 return jsonNULL;
1383
1384         }
1385
1386         free(sql);
1387
1388         if (res_list->size && order_hash) {
1389                 _tmp = jsonObjectGetKey( order_hash, "flesh" );
1390                 if (_tmp) {
1391                         int x = (int)jsonObjectGetNumber(_tmp);
1392
1393                         jsonObject* flesh_blob = NULL;
1394                         if ((flesh_blob = jsonObjectGetKey( order_hash, "flesh_fields" )) && x > 0) {
1395
1396                                 flesh_blob = jsonObjectClone( flesh_blob );
1397                                 jsonObject* flesh_fields = jsonObjectGetKey( flesh_blob, core_class );
1398
1399                                 osrfStringArray* link_fields = NULL;
1400
1401                                 if (flesh_fields) {
1402                                         if (flesh_fields->size == 1) {
1403                                                 char* _t = jsonObjectToSimpleString( jsonObjectGetIndex( flesh_fields, 0 ) );
1404                                                 if (!strcmp(_t,"*")) link_fields = osrfHashKeys( links );
1405                                                 free(_t);
1406                                         }
1407
1408                                         if (!link_fields) {
1409                                                 jsonObjectNode* _f;
1410                                                 link_fields = osrfNewStringArray(1);
1411                                                 jsonObjectIterator* _i = jsonNewObjectIterator( flesh_fields );
1412                                                 while ((_f = jsonObjectIteratorNext( _i ))) {
1413                                                         osrfStringArrayAdd( link_fields, jsonObjectToSimpleString( _f->item ) );
1414                                                 }
1415                                         }
1416                                 }
1417
1418                                 jsonObjectNode* cur;
1419                                 jsonObjectIterator* itr = jsonNewObjectIterator( res_list );
1420                                 while ((cur = jsonObjectIteratorNext( itr ))) {
1421
1422                                         int i = 0;
1423                                         char* link_field;
1424
1425                                         while ( (link_field = osrfStringArrayGetString(link_fields, i++)) ) {
1426
1427                                                 osrfLogDebug(OSRF_LOG_MARK, "Starting to flesh %s", link_field);
1428
1429                                                 osrfHash* kid_link = osrfHashGet(links, link_field);
1430                                                 if (!kid_link) continue;
1431
1432                                                 osrfHash* field = osrfHashGet(fields, link_field);
1433                                                 if (!field) continue;
1434
1435                                                 osrfHash* value_field = field;
1436
1437                                                 osrfHash* kid_idl = osrfHashGet(idl, osrfHashGet(kid_link, "class"));
1438                                                 if (!kid_idl) continue;
1439
1440                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "has_many" ))) { // has_many
1441                                                         value_field = osrfHashGet( fields, osrfHashGet(meta, "primarykey") );
1442                                                 }
1443
1444                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "might_have" ))) { // might_have
1445                                                         value_field = osrfHashGet( fields, osrfHashGet(meta, "primarykey") );
1446                                                 }
1447
1448                                                 osrfStringArray* link_map = osrfHashGet( kid_link, "map" );
1449
1450                                                 if (link_map->size > 0) {
1451                                                         jsonObject* _kid_key = jsonParseString("[]");
1452                                                         jsonObjectPush(
1453                                                                 _kid_key,
1454                                                                 jsonNewObject( osrfStringArrayGetString( link_map, 0 ) )
1455                                                         );
1456
1457                                                         jsonObjectSetKey(
1458                                                                 flesh_blob,
1459                                                                 osrfHashGet(kid_link, "class"),
1460                                                                 _kid_key
1461                                                         );
1462                                                 };
1463
1464                                                 osrfLogDebug(
1465                                                         OSRF_LOG_MARK,
1466                                                         "Link field: %s, remote class: %s, fkey: %s, reltype: %s",
1467                                                         osrfHashGet(kid_link, "field"),
1468                                                         osrfHashGet(kid_link, "class"),
1469                                                         osrfHashGet(kid_link, "key"),
1470                                                         osrfHashGet(kid_link, "reltype")
1471                                                 );
1472
1473                                                 jsonObject* fake_params = jsonParseString("[]");
1474                                                 jsonObjectPush(fake_params, jsonParseString("{}")); // search hash
1475                                                 jsonObjectPush(fake_params, jsonParseString("{}")); // order/flesh hash
1476
1477                                                 osrfLogDebug(OSRF_LOG_MARK, "Creating dummy params object...");
1478
1479                                                 char* search_key =
1480                                                 jsonObjectToSimpleString(
1481                                                         jsonObjectGetIndex(
1482                                                                 cur->item,
1483                                                                 atoi( osrfHashGet(value_field, "array_position") )
1484                                                         )
1485                                                 );
1486
1487                                                 if (!search_key) {
1488                                                         osrfLogDebug(OSRF_LOG_MARK, "Nothing to search for!");
1489                                                         continue;
1490                                                 }
1491
1492                                                 jsonObjectSetKey(
1493                                                         jsonObjectGetIndex(fake_params, 0),
1494                                                         osrfHashGet(kid_link, "key"),
1495                                                         jsonNewObject( search_key )
1496                                                 );
1497
1498                                                 free(search_key);
1499
1500
1501                                                 jsonObjectSetKey(
1502                                                         jsonObjectGetIndex(fake_params, 1),
1503                                                         "flesh",
1504                                                         jsonNewNumberObject( (double)(x - 1 + link_map->size) )
1505                                                 );
1506
1507                                                 if (flesh_blob)
1508                                                         jsonObjectSetKey( jsonObjectGetIndex(fake_params, 1), "flesh_fields", jsonObjectClone(flesh_blob) );
1509
1510                                                 if (jsonObjectGetKey(order_hash, "order_by")) {
1511                                                         jsonObjectSetKey(
1512                                                                 jsonObjectGetIndex(fake_params, 1),
1513                                                                 "order_by",
1514                                                                 jsonObjectClone(jsonObjectGetKey(order_hash, "order_by"))
1515                                                         );
1516                                                 }
1517
1518                                                 if (jsonObjectGetKey(order_hash, "select")) {
1519                                                         jsonObjectSetKey(
1520                                                                 jsonObjectGetIndex(fake_params, 1),
1521                                                                 "select",
1522                                                                 jsonObjectClone(jsonObjectGetKey(order_hash, "select"))
1523                                                         );
1524                                                 }
1525
1526                                                 jsonObject* kids = doSearch(ctx, kid_idl, fake_params, err);
1527
1528                                                 if(*err) {
1529                                                         jsonObjectFree( fake_params );
1530                                                         osrfStringArrayFree(link_fields);
1531                                                         jsonObjectIteratorFree(itr);
1532                                                         jsonObjectFree(res_list);
1533                                                         return jsonNULL;
1534                                                 }
1535
1536                                                 osrfLogDebug(OSRF_LOG_MARK, "Search for %s return %d linked objects", osrfHashGet(kid_link, "class"), kids->size);
1537
1538                                                 jsonObject* X = NULL;
1539                                                 if ( link_map->size > 0 && kids->size > 0 ) {
1540                                                         X = kids;
1541                                                         kids = jsonParseString("[]");
1542
1543                                                         jsonObjectNode* _k_node;
1544                                                         jsonObjectIterator* _k = jsonNewObjectIterator( X );
1545                                                         while ((_k_node = jsonObjectIteratorNext( _k ))) {
1546                                                                 jsonObjectPush(
1547                                                                         kids,
1548                                                                         jsonObjectClone(
1549                                                                                 jsonObjectGetIndex(
1550                                                                                         _k_node->item,
1551                                                                                         (unsigned long)atoi(
1552                                                                                                 osrfHashGet(
1553                                                                                                         osrfHashGet(
1554                                                                                                                 osrfHashGet(
1555                                                                                                                         osrfHashGet(
1556                                                                                                                                 idl,
1557                                                                                                                                 osrfHashGet(kid_link, "class")
1558                                                                                                                         ),
1559                                                                                                                         "fields"
1560                                                                                                                 ),
1561                                                                                                                 osrfStringArrayGetString( link_map, 0 )
1562                                                                                                         ),
1563                                                                                                         "array_position"
1564                                                                                                 )
1565                                                                                         )
1566                                                                                 )
1567                                                                         )
1568                                                                 );
1569                                                         }
1570                                                 }
1571
1572                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "has_a" )) || !(strcmp( osrfHashGet(kid_link, "reltype"), "might_have" ))) {
1573                                                         osrfLogDebug(OSRF_LOG_MARK, "Storing fleshed objects in %s", osrfHashGet(kid_link, "field"));
1574                                                         jsonObjectSetIndex(
1575                                                                 cur->item,
1576                                                                 (unsigned long)atoi( osrfHashGet( field, "array_position" ) ),
1577                                                                 jsonObjectClone( jsonObjectGetIndex(kids, 0) )
1578                                                         );
1579                                                 }
1580
1581                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "has_many" ))) { // has_many
1582                                                         osrfLogDebug(OSRF_LOG_MARK, "Storing fleshed objects in %s", osrfHashGet(kid_link, "field"));
1583                                                         jsonObjectSetIndex(
1584                                                                 cur->item,
1585                                                                 (unsigned long)atoi( osrfHashGet( field, "array_position" ) ),
1586                                                                 jsonObjectClone( kids )
1587                                                         );
1588                                                 }
1589
1590                                                 if (X) {
1591                                                         jsonObjectFree(kids);
1592                                                         kids = X;
1593                                                 }
1594
1595                                                 jsonObjectFree( kids );
1596                                                 jsonObjectFree( fake_params );
1597
1598                                                 osrfLogDebug(OSRF_LOG_MARK, "Fleshing of %s complete", osrfHashGet(kid_link, "field"));
1599                                                 osrfLogDebug(OSRF_LOG_MARK, "%s", jsonObjectToJSON(cur->item));
1600
1601                                         }
1602                                 }
1603                                 jsonObjectFree( flesh_blob );
1604                                 osrfStringArrayFree(link_fields);
1605                                 jsonObjectIteratorFree(itr);
1606                         }
1607                 }
1608         }
1609
1610         return res_list;
1611 }
1612
1613
1614 jsonObject* doUpdate(osrfMethodContext* ctx, int* err ) {
1615
1616         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
1617         jsonObject* target = jsonObjectGetIndex(ctx->params, 0);
1618
1619         if (!verifyObjectClass(ctx, target)) {
1620                 *err = -1;
1621                 return jsonNULL;
1622         }
1623
1624         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
1625                 osrfAppSessionStatus(
1626                         ctx->session,
1627                         OSRF_STATUS_BADREQUEST,
1628                         "osrfMethodException",
1629                         ctx->request,
1630                         "No active transaction -- required for UPDATE"
1631                 );
1632                 *err = -1;
1633                 return jsonNULL;
1634         }
1635
1636         dbhandle = writehandle;
1637
1638         char* trans_id = osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" );
1639
1640         // Set the last_xact_id
1641         osrfHash* last_xact_id;
1642         if ((last_xact_id = oilsIDLFindPath("/%s/fields/last_xact_id", target->classname))) {
1643                 int index = atoi( osrfHashGet(last_xact_id, "array_position") );
1644                 osrfLogDebug(OSRF_LOG_MARK, "Setting last_xact_id to %s on %s at position %d", trans_id, target->classname, index);
1645                 jsonObjectSetIndex(target, index, jsonNewObject(trans_id));
1646         }
1647
1648         char* pkey = osrfHashGet(meta, "primarykey");
1649         osrfHash* fields = osrfHashGet(meta, "fields");
1650
1651         char* id =
1652                 jsonObjectToSimpleString(
1653                         jsonObjectGetIndex(
1654                                 target,
1655                                 atoi( osrfHashGet( osrfHashGet( fields, pkey ), "array_position" ) )
1656                         )
1657                 );
1658
1659         osrfLogDebug(
1660                 OSRF_LOG_MARK,
1661                 "%s updating %s object with %s = %s",
1662                 MODULENAME,
1663                 osrfHashGet(meta, "fieldmapper"),
1664                 pkey,
1665                 id
1666         );
1667
1668         growing_buffer* sql = buffer_init(128);
1669         buffer_fadd(sql,"UPDATE %s SET", osrfHashGet(meta, "tablename"));
1670
1671         int i = 0;
1672         int first = 1;
1673         char* field_name;
1674         osrfStringArray* field_list = osrfHashKeys( fields );
1675         while ( (field_name = osrfStringArrayGetString(field_list, i++)) ) {
1676
1677                 osrfHash* field = osrfHashGet( fields, field_name );
1678
1679                 if(!( strcmp( field_name, pkey ) )) continue;
1680                 if(!( strcmp( osrfHashGet(osrfHashGet(fields,field_name), "virtual"), "true" ) )) continue;
1681
1682                 int pos = atoi(osrfHashGet(field, "array_position"));
1683                 char* value = jsonObjectToSimpleString( jsonObjectGetIndex( target, pos ) );
1684
1685                 osrfLogDebug( OSRF_LOG_MARK, "Updating %s object with %s = %s", osrfHashGet(meta, "fieldmapper"), field_name, value);
1686
1687                 if (!jsonObjectGetIndex(target, pos) || jsonObjectGetIndex(target, pos)->type == JSON_NULL) {
1688                         if ( !(!( strcmp( osrfHashGet(meta, "classname"), "au" ) ) && !( strcmp( field_name, "passwd" ) )) ) { // arg at the special case!
1689                                 if (first) first = 0;
1690                                 else buffer_add(sql, ",");
1691                                 buffer_fadd( sql, " %s = NULL", field_name );
1692                         }
1693
1694                 } else if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1695                         if (first) first = 0;
1696                         else buffer_add(sql, ",");
1697
1698                         if ( !strncmp(osrfHashGet(field, "datatype"), "INT", (size_t)3) ) {
1699                                 buffer_fadd( sql, " %s = %ld", field_name, atol(value) );
1700                         } else if ( !strcmp(osrfHashGet(field, "datatype"), "NUMERIC") ) {
1701                                 buffer_fadd( sql, " %s = %f", field_name, atof(value) );
1702                         }
1703
1704                         osrfLogDebug( OSRF_LOG_MARK, "%s is of type %s", field_name, osrfHashGet(field, "datatype"));
1705
1706                 } else {
1707                         if ( dbi_conn_quote_string(dbhandle, &value) ) {
1708                                 if (first) first = 0;
1709                                 else buffer_add(sql, ",");
1710                                 buffer_fadd( sql, " %s = %s", field_name, value );
1711
1712                         } else {
1713                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting string [%s]", MODULENAME, value);
1714                                 osrfAppSessionStatus(
1715                                         ctx->session,
1716                                         OSRF_STATUS_INTERNALSERVERERROR,
1717                                         "osrfMethodException",
1718                                         ctx->request,
1719                                         "Error quoting string -- please see the error log for more details"
1720                                 );
1721                                 free(value);
1722                                 free(id);
1723                                 buffer_free(sql);
1724                                 *err = -1;
1725                                 return jsonNULL;
1726                         }
1727                 }
1728
1729                 free(value);
1730
1731         }
1732
1733         jsonObject* obj = jsonParseString(id);
1734
1735         if ( strcmp( osrfHashGet( osrfHashGet( osrfHashGet(meta, "fields"), pkey ), "primitive" ), "number" ) )
1736                 dbi_conn_quote_string(dbhandle, &id);
1737
1738         buffer_fadd( sql, " WHERE %s = %s;", pkey, id );
1739
1740         char* query = buffer_data(sql);
1741         buffer_free(sql);
1742
1743         osrfLogDebug(OSRF_LOG_MARK, "%s: Update SQL [%s]", MODULENAME, query);
1744
1745         dbi_result result = dbi_conn_query(dbhandle, query);
1746         free(query);
1747
1748         if (!result) {
1749                 jsonObjectFree(obj);
1750                 obj = jsonNewObject(NULL);
1751                 osrfLogError(
1752                         OSRF_LOG_MARK,
1753                         "%s ERROR updating %s object with %s = %s",
1754                         MODULENAME,
1755                         osrfHashGet(meta, "fieldmapper"),
1756                         pkey,
1757                         id
1758                 );
1759         }
1760
1761         free(id);
1762
1763         return obj;
1764 }
1765
1766 jsonObject* doDelete(osrfMethodContext* ctx, int* err ) {
1767
1768         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
1769
1770         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
1771                 osrfAppSessionStatus(
1772                         ctx->session,
1773                         OSRF_STATUS_BADREQUEST,
1774                         "osrfMethodException",
1775                         ctx->request,
1776                         "No active transaction -- required for DELETE"
1777                 );
1778                 *err = -1;
1779                 return jsonNULL;
1780         }
1781
1782         dbhandle = writehandle;
1783
1784         jsonObject* obj;
1785
1786         char* pkey = osrfHashGet(meta, "primarykey");
1787
1788         char* id;
1789         if (jsonObjectGetIndex(ctx->params, 0)->classname) {
1790                 if (!verifyObjectClass(ctx, jsonObjectGetIndex( ctx->params, 0 ))) {
1791                         *err = -1;
1792                         return jsonNULL;
1793                 }
1794
1795                 id = jsonObjectToSimpleString(
1796                         jsonObjectGetIndex(
1797                                 jsonObjectGetIndex(ctx->params, 0),
1798                                 atoi( osrfHashGet( osrfHashGet( osrfHashGet(meta, "fields"), pkey ), "array_position") )
1799                         )
1800                 );
1801         } else {
1802                 id = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
1803         }
1804
1805         osrfLogDebug(
1806                 OSRF_LOG_MARK,
1807                 "%s deleting %s object with %s = %s",
1808                 MODULENAME,
1809                 osrfHashGet(meta, "fieldmapper"),
1810                 pkey,
1811                 id
1812         );
1813
1814         obj = jsonParseString(id);
1815
1816         if ( strcmp( osrfHashGet( osrfHashGet( osrfHashGet(meta, "fields"), pkey ), "primitive" ), "number" ) )
1817                 dbi_conn_quote_string(writehandle, &id);
1818
1819         dbi_result result = dbi_conn_queryf(writehandle, "DELETE FROM %s WHERE %s = %s;", osrfHashGet(meta, "tablename"), pkey, id);
1820
1821         if (!result) {
1822                 jsonObjectFree(obj);
1823                 obj = jsonNewObject(NULL);
1824                 osrfLogError(
1825                         OSRF_LOG_MARK,
1826                         "%s ERROR deleting %s object with %s = %s",
1827                         MODULENAME,
1828                         osrfHashGet(meta, "fieldmapper"),
1829                         pkey,
1830                         id
1831                 );
1832         }
1833
1834         free(id);
1835
1836         return obj;
1837
1838 }
1839
1840
1841 jsonObject* oilsMakeJSONFromResult( dbi_result result, osrfHash* meta) {
1842         if(!(result && meta)) return jsonNULL;
1843
1844         jsonObject* object = jsonParseString("[]");
1845         jsonObjectSetClass(object, osrfHashGet(meta, "classname"));
1846
1847         osrfHash* fields = osrfHashGet(meta, "fields");
1848
1849         osrfLogInternal(OSRF_LOG_MARK, "Setting object class to %s ", object->classname);
1850
1851         osrfHash* _f;
1852         time_t _tmp_dt;
1853         char dt_string[256];
1854         struct tm gmdt;
1855
1856         int fmIndex;
1857         int columnIndex = 1;
1858         int attr;
1859         unsigned short type;
1860         const char* columnName;
1861
1862         /* cycle through the column list */
1863         while( (columnName = dbi_result_get_field_name(result, columnIndex++)) ) {
1864
1865                 osrfLogInternal(OSRF_LOG_MARK, "Looking for column named [%s]...", (char*)columnName);
1866
1867                 fmIndex = -1; // reset the position
1868
1869                 /* determine the field type and storage attributes */
1870                 type = dbi_result_get_field_type(result, columnName);
1871                 attr = dbi_result_get_field_attribs(result, columnName);
1872
1873                 /* fetch the fieldmapper index */
1874                 if( (_f = osrfHashGet(fields, (char*)columnName)) ) {
1875                         char* virt = (char*)osrfHashGet(_f, "virtual");
1876                         char* pos = (char*)osrfHashGet(_f, "array_position");
1877
1878                         if ( !virt || !pos || !(strcmp( virt, "true" )) ) continue;
1879
1880                         fmIndex = atoi( pos );
1881                         osrfLogInternal(OSRF_LOG_MARK, "... Found column at position [%s]...", pos);
1882                 } else {
1883                         continue;
1884                 }
1885
1886                 if (dbi_result_field_is_null(result, columnName)) {
1887                         jsonObjectSetIndex( object, fmIndex, jsonNewObject(NULL) );
1888                 } else {
1889
1890                         switch( type ) {
1891
1892                                 case DBI_TYPE_INTEGER :
1893
1894                                         if( attr & DBI_INTEGER_SIZE8 )
1895                                                 jsonObjectSetIndex( object, fmIndex,
1896                                                         jsonNewNumberObject(dbi_result_get_longlong(result, columnName)));
1897                                         else
1898                                                 jsonObjectSetIndex( object, fmIndex,
1899                                                         jsonNewNumberObject(dbi_result_get_long(result, columnName)));
1900
1901                                         break;
1902
1903                                 case DBI_TYPE_DECIMAL :
1904                                         jsonObjectSetIndex( object, fmIndex,
1905                                                         jsonNewNumberObject(dbi_result_get_double(result, columnName)));
1906                                         break;
1907
1908                                 case DBI_TYPE_STRING :
1909
1910
1911                                         jsonObjectSetIndex(
1912                                                 object,
1913                                                 fmIndex,
1914                                                 jsonNewObject( dbi_result_get_string(result, columnName) )
1915                                         );
1916
1917                                         break;
1918
1919                                 case DBI_TYPE_DATETIME :
1920
1921                                         memset(dt_string, '\0', 256);
1922                                         memset(&gmdt, '\0', sizeof(gmdt));
1923                                         memset(&_tmp_dt, '\0', sizeof(_tmp_dt));
1924
1925                                         _tmp_dt = dbi_result_get_datetime(result, columnName);
1926
1927                                         localtime_r( &_tmp_dt, &gmdt );
1928
1929                                         if (!(attr & DBI_DATETIME_DATE)) {
1930                                                 strftime(dt_string, 255, "%T", &gmdt);
1931                                         } else if (!(attr & DBI_DATETIME_TIME)) {
1932                                                 strftime(dt_string, 255, "%F", &gmdt);
1933                                         } else {
1934                                                 strftime(dt_string, 255, "%FT%T%z", &gmdt);
1935                                         }
1936
1937                                         jsonObjectSetIndex( object, fmIndex, jsonNewObject(dt_string) );
1938
1939                                         break;
1940
1941                                 case DBI_TYPE_BINARY :
1942                                         osrfLogError( OSRF_LOG_MARK,
1943                                                 "Can't do binary at column %s : index %d", columnName, columnIndex - 1);
1944                         }
1945                 }
1946         }
1947
1948         return object;
1949 }
1950