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, const char* op) {
 903         growing_buffer* sql_buf = buffer_init(32);
 904
 905         buffer_fadd(
 906                 sql_buf,
 907                 "%s ",
 908                 osrfHashGet(field, "name")
 909         );
 910
 911         if (!op) {
 912                 buffer_add(sql_buf, "IN (");
 913         } else if ((strcmp(op,"=") || strcmp(op,"in")) || !(strcasecmp(op,"not in"))) {
 914                 buffer_add(sql_buf, "NOT IN (");
 915         } else {
 916                 buffer_add(sql_buf, "IN (");
 917         }
 918
 919         int in_item_index = 0;
 920         int in_item_first = 1;
 921         jsonObject* in_item;
 922         while ( (in_item = jsonObjectGetIndex(node, in_item_index++)) ) {
 923
 924                 if (in_item_first)
 925                         in_item_first = 0;
 926                 else
 927                         buffer_add(sql_buf, ", ");
 928
 929                 if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
 930                         char* val = jsonNumberToDBString( field, in_item );
 931                         buffer_fadd( sql_buf, "%s", val );
 932                         free(val);
 933
 934                 } else {
 935                         char* key_string = jsonObjectToSimpleString(in_item);
 936                         if ( dbi_conn_quote_string(dbhandle, &key_string) ) {
 937                                 buffer_fadd( sql_buf, "%s", key_string );
 938                                 free(key_string);
 939                         } else {
 940                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, key_string);
 941                                 free(key_string);
 942                                 buffer_free(sql_buf);
 943                                 return NULL;
 944                         }
 945                 }
 946         }
 947
 948         buffer_add(
 949                 sql_buf,
 950                 ")"
 951         );
 952
 953         char* pred = buffer_data(sql_buf);
 954         buffer_free(sql_buf);
 955
 956         return pred;
 957 }
 958
 959 char* searchValueTransform( jsonObject* array ) {
 960         growing_buffer* sql_buf = buffer_init(32);
 961
 962         char* val = NULL;
 963         int func_item_index = 0;
 964         int func_item_first = 2;
 965         jsonObject* func_item;
 966         while ( (func_item = jsonObjectGetIndex(array, func_item_index++)) ) {
 967
 968                 val = jsonObjectToSimpleString(func_item);
 969
 970                 if (func_item_first == 2) {
 971                         buffer_fadd(sql_buf, "%s( ", val);
 972                         free(val);
 973                         func_item_first--;
 974                         continue;
 975                 }
 976
 977                 if (func_item_first)
 978                         func_item_first--;
 979                 else
 980                         buffer_add(sql_buf, ", ");
 981
 982                 if ( dbi_conn_quote_string(dbhandle, &val) ) {
 983                         buffer_fadd( sql_buf, "%s", val );
 984                         free(val);
 985                 } else {
 986                         osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, val);
 987                         free(val);
 988                         buffer_free(sql_buf);
 989                         return NULL;
 990                 }
 991         }
 992
 993         buffer_add(
 994                 sql_buf,
 995                 " )"
 996         );
 997
 998         char* pred = buffer_data(sql_buf);
 999         buffer_free(sql_buf);
1000
1001         return pred;
1002 }
1003
1004 char* searchFunctionPredicate (osrfHash* field, jsonObjectNode* node) {
1005         growing_buffer* sql_buf = buffer_init(32);
1006
1007         char* val = searchValueTransform(node->item);
1008
1009         buffer_fadd(
1010                 sql_buf,
1011                 "%s %s %s",
1012                 osrfHashGet(field, "name"),
1013                 node->key,
1014                 val
1015         );
1016
1017         char* pred = buffer_data(sql_buf);
1018         buffer_free(sql_buf);
1019         free(val);
1020
1021         return pred;
1022 }
1023
1024 char* searchFieldTransform (osrfHash* field, jsonObject* node) {
1025         growing_buffer* sql_buf = buffer_init(32);
1026
1027         char* field_transform = jsonObjectToSimpleString( jsonObjectGetKey( node, "transform" ) );
1028
1029         buffer_fadd(
1030                 sql_buf,
1031                 "%s(%s)",
1032                 field_transform,
1033                 osrfHashGet(field, "name")
1034         );
1035
1036         char* pred = buffer_data(sql_buf);
1037         buffer_free(sql_buf);
1038         free(field_transform);
1039
1040         return pred;
1041 }
1042
1043 char* searchFieldTransformPredicate (osrfHash* field, jsonObjectNode* node) {
1044         growing_buffer* sql_buf = buffer_init(32);
1045
1046         char* field_transform = searchFieldTransform( field, node->item );
1047         char* value = NULL;
1048
1049         if (jsonObjectGetKey( node->item, "value" )->type == JSON_ARRAY) {
1050                 value = searchValueTransform(jsonObjectGetKey( node->item, "value" ));
1051         } else if (jsonObjectGetKey( node->item, "value" )->type != JSON_NULL) {
1052                 if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1053                         value = jsonNumberToDBString( field, jsonObjectGetKey( node->item, "value" ) );
1054                 } else {
1055                         value = jsonObjectToSimpleString(jsonObjectGetKey( node->item, "value" ));
1056                         if ( !dbi_conn_quote_string(dbhandle, &value) ) {
1057                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, value);
1058                                 free(value);
1059                                 return NULL;
1060                         }
1061                 }
1062         }
1063
1064         buffer_fadd(
1065                 sql_buf,
1066                 "%s %s %s",
1067                 field_transform,
1068                 node->key,
1069                 value
1070         );
1071
1072         char* pred = buffer_data(sql_buf);
1073         buffer_free(sql_buf);
1074         free(field_transform);
1075
1076         return pred;
1077 }
1078
1079 char* searchSimplePredicate (const char* orig_op, osrfHash* field, jsonObject* node) {
1080
1081         char* val = NULL;
1082
1083         if (node->type != JSON_NULL) {
1084                 if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1085                         val = jsonNumberToDBString( field, node );
1086                 } else {
1087                         val = jsonObjectToSimpleString(node);
1088                 }
1089         }
1090
1091         char* pred = searchWriteSimplePredicate( field, osrfHashGet(field, "name"), orig_op, val );
1092
1093         if (val) free(val);
1094
1095         return pred;
1096 }
1097
1098 char* searchWriteSimplePredicate ( osrfHash* field, const char* left, const char* orig_op, const char* right ) {
1099
1100         char* val = NULL;
1101         char* op = NULL;
1102         if (right == NULL) {
1103                 val = strdup("NULL");
1104
1105                 if (strcmp( orig_op, "=" ))
1106                         op = strdup("IS NOT");
1107                 else
1108                         op = strdup("IS");
1109
1110         } else if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1111                 val = strdup(right);
1112                 op = strdup(orig_op);
1113
1114         } else {
1115                 val = strdup(right);
1116                 if ( !dbi_conn_quote_string(dbhandle, &val) ) {
1117                         osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, val);
1118                         free(val);
1119                         return NULL;
1120                 }
1121                 op = strdup(orig_op);
1122         }
1123
1124         growing_buffer* sql_buf = buffer_init(16);
1125         buffer_fadd( sql_buf, "%s %s %s", left, op, val );
1126         free(val);
1127         free(op);
1128
1129         char* pred = buffer_data(sql_buf);
1130         buffer_free(sql_buf);
1131
1132         return pred;
1133
1134 }
1135
1136 char* searchBETWEENPredicate (osrfHash* field, jsonObject* node) {
1137
1138         char* x_string;
1139         char* y_string;
1140
1141         if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1142                 x_string = jsonNumberToDBString(field, jsonObjectGetIndex(node,0));
1143                 y_string = jsonNumberToDBString(field, jsonObjectGetIndex(node,1));
1144
1145         } else {
1146                 x_string = jsonObjectToSimpleString(jsonObjectGetIndex(node,0));
1147                 y_string = jsonObjectToSimpleString(jsonObjectGetIndex(node,1));
1148                 if ( !(dbi_conn_quote_string(dbhandle, &x_string) && dbi_conn_quote_string(dbhandle, &y_string)) ) {
1149                         osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key strings [%s] and [%s]", MODULENAME, x_string, y_string);
1150                         free(x_string);
1151                         free(y_string);
1152                         return NULL;
1153                 }
1154         }
1155
1156         growing_buffer* sql_buf = buffer_init(32);
1157         buffer_fadd( sql_buf, "%s BETWEEN %s AND %s", osrfHashGet(field, "name"), x_string, y_string );
1158         free(x_string);
1159         free(y_string);
1160
1161         char* pred = buffer_data(sql_buf);
1162         buffer_free(sql_buf);
1163
1164         return pred;
1165 }
1166
1167 char* searchPredicate ( osrfHash* field, jsonObject* node ) {
1168
1169         char* pred = NULL;
1170         if (node->type == JSON_ARRAY) { // equality IN search
1171                 pred = searchINPredicate( field, node, NULL );
1172         } else if (node->type == JSON_HASH) { // non-equality search
1173                 jsonObjectNode* pred_node;
1174                 jsonObjectIterator* pred_itr = jsonNewObjectIterator( node );
1175                 while ( (pred_node = jsonObjectIteratorNext( pred_itr )) ) {
1176                         if ( !(strcasecmp( pred_node->key,"between" )) )
1177                                 pred = searchBETWEENPredicate( field, pred_node->item );
1178                         else if ( !(strcasecmp( pred_node->key,"in" )) )
1179                                 pred = searchINPredicate( field, pred_node->item, pred_node->key );
1180                         else if ( pred_node->item->type == JSON_ARRAY )
1181                                 pred = searchFunctionPredicate( field, pred_node );
1182                         else if ( pred_node->item->type == JSON_HASH )
1183                                 pred = searchFieldTransformPredicate( field, pred_node );
1184                         else
1185                                 pred = searchSimplePredicate( pred_node->key, field, pred_node->item );
1186
1187                         break;
1188                 }
1189         } else if (node->type == JSON_NULL) { // IS NULL search
1190                 growing_buffer* _p = buffer_init(16);
1191                 buffer_fadd(
1192                         _p,
1193                         "%s IS NULL",
1194                         osrfHashGet(field, "name")
1195                 );
1196                 pred = buffer_data(_p);
1197                 buffer_free(_p);
1198         } else { // equality search
1199                 pred = searchSimplePredicate( "=", field, node );
1200         }
1201
1202         return pred;
1203
1204 }
1205
1206 char* buildSELECT ( jsonObject* search_hash, jsonObject* order_hash, osrfHash* meta, osrfMethodContext* ctx ) {
1207
1208         osrfHash* links = osrfHashGet(meta, "links");
1209         osrfHash* fields = osrfHashGet(meta, "fields");
1210         char* core_class = osrfHashGet(meta, "classname");
1211
1212         jsonObjectNode* node = NULL;
1213         jsonObjectNode* snode = NULL;
1214         jsonObject* _tmp;
1215
1216         growing_buffer* sql_buf = buffer_init(128);
1217         buffer_add(sql_buf, "SELECT");
1218
1219         int first = 1;
1220         if ( (_tmp = jsonObjectGetKey( order_hash, "select" )) ) {
1221
1222                 jsonObjectIterator* class_itr = jsonNewObjectIterator( _tmp );
1223                 while ( (snode = jsonObjectIteratorNext( class_itr )) ) {
1224
1225                         osrfHash* idlClass = osrfHashGet( idl, snode->key );
1226                         if (!idlClass) continue;
1227                         char* cname = osrfHashGet(idlClass, "classname");
1228
1229                         if (strcmp(core_class,snode->key)) continue;
1230
1231                         jsonObjectIterator* select_itr = jsonNewObjectIterator( snode->item );
1232                         while ( (node = jsonObjectIteratorNext( select_itr )) ) {
1233                                 osrfHash* field = osrfHashGet( osrfHashGet( idlClass, "fields" ), jsonObjectToSimpleString(node->item) );
1234                                 char* fname = osrfHashGet(field, "name");
1235
1236                                 if (!field) continue;
1237
1238                                 if (first) {
1239                                         first = 0;
1240                                 } else {
1241                                         buffer_add(sql_buf, ",");
1242                                 }
1243
1244                                 buffer_fadd(sql_buf, " \"%s\".%s", cname, fname, cname, fname);
1245                         }
1246                 }
1247
1248                 if (first) buffer_add(sql_buf, " *");
1249
1250         } else {
1251                 buffer_add(sql_buf, " *");
1252         }
1253
1254         buffer_fadd(sql_buf, " FROM %s AS \"%s\" WHERE ", osrfHashGet(meta, "tablename"), core_class );
1255
1256
1257         char* pred;
1258         first = 1;
1259         jsonObjectIterator* search_itr = jsonNewObjectIterator( search_hash );
1260         while ( (node = jsonObjectIteratorNext( search_itr )) ) {
1261                 osrfHash* field = osrfHashGet( fields, node->key );
1262
1263                 if (!field) {
1264                         osrfLogError(
1265                                 OSRF_LOG_MARK,
1266                                 "%s: Attempt to reference non-existant column %s on table %s",
1267                                 MODULENAME,
1268                                 node->key,
1269                                 osrfHashGet(meta, "tablename")
1270                         );
1271                         osrfAppSessionStatus(
1272                                 ctx->session,
1273                                 OSRF_STATUS_INTERNALSERVERERROR,
1274                                 "osrfMethodException",
1275                                 ctx->request,
1276                                 "Severe query error -- see error log for more details"
1277                         );
1278                         buffer_free(sql_buf);
1279                         return NULL;
1280                 }
1281
1282                 if (first) {
1283                         first = 0;
1284                 } else {
1285                         buffer_add(sql_buf, " AND ");
1286                 }
1287
1288                 pred = searchPredicate( field, node->item);
1289                 buffer_fadd( sql_buf, "%s", pred );
1290                 free(pred);
1291         }
1292
1293         jsonObjectIteratorFree(search_itr);
1294
1295         if (order_hash) {
1296                 char* string;
1297                 if ( (_tmp = jsonObjectGetKey( jsonObjectGetKey( order_hash, "order_by" ), core_class ) ) ){
1298                         string = jsonObjectToSimpleString(_tmp);
1299                         buffer_fadd(
1300                                 sql_buf,
1301                                 " ORDER BY %s",
1302                                 string
1303                         );
1304                         free(string);
1305                 }
1306
1307                 if ( (_tmp = jsonObjectGetKey( order_hash, "limit" )) ){
1308                         string = jsonObjectToSimpleString(_tmp);
1309                         buffer_fadd(
1310                                 sql_buf,
1311                                 " LIMIT %d",
1312                                 atoi(string)
1313                         );
1314                         free(string);
1315                 }
1316
1317                 _tmp = jsonObjectGetKey( order_hash, "offset" );
1318                 if (_tmp) {
1319                         string = jsonObjectToSimpleString(_tmp);
1320                         buffer_fadd(
1321                                 sql_buf,
1322                                 " OFFSET %d",
1323                                 atoi(string)
1324                         );
1325                         free(string);
1326                 }
1327         }
1328
1329         buffer_add(sql_buf, ";");
1330
1331         char* sql = buffer_data(sql_buf);
1332         buffer_free(sql_buf);
1333
1334         return sql;
1335 }
1336
1337 jsonObject* doSearch ( osrfMethodContext* ctx, osrfHash* meta, jsonObject* params, int* err ) {
1338
1339         // XXX for now...
1340         dbhandle = writehandle;
1341
1342         osrfHash* links = osrfHashGet(meta, "links");
1343         osrfHash* fields = osrfHashGet(meta, "fields");
1344         char* core_class = osrfHashGet(meta, "classname");
1345
1346         jsonObject* _tmp;
1347         jsonObject* obj;
1348         jsonObject* search_hash = jsonObjectGetIndex(params, 0);
1349         jsonObject* order_hash = jsonObjectGetIndex(params, 1);
1350
1351         char* sql = buildSELECT( search_hash, order_hash, meta, ctx );
1352         if (!sql) {
1353                 *err = -1;
1354                 return NULL;
1355         }
1356
1357         osrfLogDebug(OSRF_LOG_MARK, "%s SQL =  %s", MODULENAME, sql);
1358         dbi_result result = dbi_conn_query(dbhandle, sql);
1359
1360         jsonObject* res_list = jsonParseString("[]");
1361         if(result) {
1362                 osrfLogDebug(OSRF_LOG_MARK, "Query returned with no errors");
1363
1364                 if (dbi_result_first_row(result)) {
1365                         /* JSONify the result */
1366                         osrfLogDebug(OSRF_LOG_MARK, "Query returned at least one row");
1367                         do {
1368                                 obj = oilsMakeJSONFromResult( result, meta );
1369                                 jsonObjectPush(res_list, obj);
1370                         } while (dbi_result_next_row(result));
1371                 } else {
1372                         osrfLogDebug(OSRF_LOG_MARK, "%s returned no results for query %s", MODULENAME, sql);
1373                 }
1374
1375                 /* clean up the query */
1376                 dbi_result_free(result);
1377
1378         } else {
1379                 osrfLogError(OSRF_LOG_MARK, "%s: Error retrieving %s with query [%s]", MODULENAME, osrfHashGet(meta, "fieldmapper"), sql);
1380                 osrfAppSessionStatus(
1381                         ctx->session,
1382                         OSRF_STATUS_INTERNALSERVERERROR,
1383                         "osrfMethodException",
1384                         ctx->request,
1385                         "Severe query error -- see error log for more details"
1386                 );
1387                 *err = -1;
1388                 free(sql);
1389                 jsonObjectFree(res_list);
1390                 return jsonNULL;
1391
1392         }
1393
1394         free(sql);
1395
1396         if (res_list->size && order_hash) {
1397                 _tmp = jsonObjectGetKey( order_hash, "flesh" );
1398                 if (_tmp) {
1399                         int x = (int)jsonObjectGetNumber(_tmp);
1400
1401                         jsonObject* flesh_blob = NULL;
1402                         if ((flesh_blob = jsonObjectGetKey( order_hash, "flesh_fields" )) && x > 0) {
1403
1404                                 flesh_blob = jsonObjectClone( flesh_blob );
1405                                 jsonObject* flesh_fields = jsonObjectGetKey( flesh_blob, core_class );
1406
1407                                 osrfStringArray* link_fields = NULL;
1408
1409                                 if (flesh_fields) {
1410                                         if (flesh_fields->size == 1) {
1411                                                 char* _t = jsonObjectToSimpleString( jsonObjectGetIndex( flesh_fields, 0 ) );
1412                                                 if (!strcmp(_t,"*")) link_fields = osrfHashKeys( links );
1413                                                 free(_t);
1414                                         }
1415
1416                                         if (!link_fields) {
1417                                                 jsonObjectNode* _f;
1418                                                 link_fields = osrfNewStringArray(1);
1419                                                 jsonObjectIterator* _i = jsonNewObjectIterator( flesh_fields );
1420                                                 while ((_f = jsonObjectIteratorNext( _i ))) {
1421                                                         osrfStringArrayAdd( link_fields, jsonObjectToSimpleString( _f->item ) );
1422                                                 }
1423                                         }
1424                                 }
1425
1426                                 jsonObjectNode* cur;
1427                                 jsonObjectIterator* itr = jsonNewObjectIterator( res_list );
1428                                 while ((cur = jsonObjectIteratorNext( itr ))) {
1429
1430                                         int i = 0;
1431                                         char* link_field;
1432
1433                                         while ( (link_field = osrfStringArrayGetString(link_fields, i++)) ) {
1434
1435                                                 osrfLogDebug(OSRF_LOG_MARK, "Starting to flesh %s", link_field);
1436
1437                                                 osrfHash* kid_link = osrfHashGet(links, link_field);
1438                                                 if (!kid_link) continue;
1439
1440                                                 osrfHash* field = osrfHashGet(fields, link_field);
1441                                                 if (!field) continue;
1442
1443                                                 osrfHash* value_field = field;
1444
1445                                                 osrfHash* kid_idl = osrfHashGet(idl, osrfHashGet(kid_link, "class"));
1446                                                 if (!kid_idl) continue;
1447
1448                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "has_many" ))) { // has_many
1449                                                         value_field = osrfHashGet( fields, osrfHashGet(meta, "primarykey") );
1450                                                 }
1451
1452                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "might_have" ))) { // might_have
1453                                                         value_field = osrfHashGet( fields, osrfHashGet(meta, "primarykey") );
1454                                                 }
1455
1456                                                 osrfStringArray* link_map = osrfHashGet( kid_link, "map" );
1457
1458                                                 if (link_map->size > 0) {
1459                                                         jsonObject* _kid_key = jsonParseString("[]");
1460                                                         jsonObjectPush(
1461                                                                 _kid_key,
1462                                                                 jsonNewObject( osrfStringArrayGetString( link_map, 0 ) )
1463                                                         );
1464
1465                                                         jsonObjectSetKey(
1466                                                                 flesh_blob,
1467                                                                 osrfHashGet(kid_link, "class"),
1468                                                                 _kid_key
1469                                                         );
1470                                                 };
1471
1472                                                 osrfLogDebug(
1473                                                         OSRF_LOG_MARK,
1474                                                         "Link field: %s, remote class: %s, fkey: %s, reltype: %s",
1475                                                         osrfHashGet(kid_link, "field"),
1476                                                         osrfHashGet(kid_link, "class"),
1477                                                         osrfHashGet(kid_link, "key"),
1478                                                         osrfHashGet(kid_link, "reltype")
1479                                                 );
1480
1481                                                 jsonObject* fake_params = jsonParseString("[]");
1482                                                 jsonObjectPush(fake_params, jsonParseString("{}")); // search hash
1483                                                 jsonObjectPush(fake_params, jsonParseString("{}")); // order/flesh hash
1484
1485                                                 osrfLogDebug(OSRF_LOG_MARK, "Creating dummy params object...");
1486
1487                                                 char* search_key =
1488                                                 jsonObjectToSimpleString(
1489                                                         jsonObjectGetIndex(
1490                                                                 cur->item,
1491                                                                 atoi( osrfHashGet(value_field, "array_position") )
1492                                                         )
1493                                                 );
1494
1495                                                 if (!search_key) {
1496                                                         osrfLogDebug(OSRF_LOG_MARK, "Nothing to search for!");
1497                                                         continue;
1498                                                 }
1499
1500                                                 jsonObjectSetKey(
1501                                                         jsonObjectGetIndex(fake_params, 0),
1502                                                         osrfHashGet(kid_link, "key"),
1503                                                         jsonNewObject( search_key )
1504                                                 );
1505
1506                                                 free(search_key);
1507
1508
1509                                                 jsonObjectSetKey(
1510                                                         jsonObjectGetIndex(fake_params, 1),
1511                                                         "flesh",
1512                                                         jsonNewNumberObject( (double)(x - 1 + link_map->size) )
1513                                                 );
1514
1515                                                 if (flesh_blob)
1516                                                         jsonObjectSetKey( jsonObjectGetIndex(fake_params, 1), "flesh_fields", jsonObjectClone(flesh_blob) );
1517
1518                                                 if (jsonObjectGetKey(order_hash, "order_by")) {
1519                                                         jsonObjectSetKey(
1520                                                                 jsonObjectGetIndex(fake_params, 1),
1521                                                                 "order_by",
1522                                                                 jsonObjectClone(jsonObjectGetKey(order_hash, "order_by"))
1523                                                         );
1524                                                 }
1525
1526                                                 if (jsonObjectGetKey(order_hash, "select")) {
1527                                                         jsonObjectSetKey(
1528                                                                 jsonObjectGetIndex(fake_params, 1),
1529                                                                 "select",
1530                                                                 jsonObjectClone(jsonObjectGetKey(order_hash, "select"))
1531                                                         );
1532                                                 }
1533
1534                                                 jsonObject* kids = doSearch(ctx, kid_idl, fake_params, err);
1535
1536                                                 if(*err) {
1537                                                         jsonObjectFree( fake_params );
1538                                                         osrfStringArrayFree(link_fields);
1539                                                         jsonObjectIteratorFree(itr);
1540                                                         jsonObjectFree(res_list);
1541                                                         return jsonNULL;
1542                                                 }
1543
1544                                                 osrfLogDebug(OSRF_LOG_MARK, "Search for %s return %d linked objects", osrfHashGet(kid_link, "class"), kids->size);
1545
1546                                                 jsonObject* X = NULL;
1547                                                 if ( link_map->size > 0 && kids->size > 0 ) {
1548                                                         X = kids;
1549                                                         kids = jsonParseString("[]");
1550
1551                                                         jsonObjectNode* _k_node;
1552                                                         jsonObjectIterator* _k = jsonNewObjectIterator( X );
1553                                                         while ((_k_node = jsonObjectIteratorNext( _k ))) {
1554                                                                 jsonObjectPush(
1555                                                                         kids,
1556                                                                         jsonObjectClone(
1557                                                                                 jsonObjectGetIndex(
1558                                                                                         _k_node->item,
1559                                                                                         (unsigned long)atoi(
1560                                                                                                 osrfHashGet(
1561                                                                                                         osrfHashGet(
1562                                                                                                                 osrfHashGet(
1563                                                                                                                         osrfHashGet(
1564                                                                                                                                 idl,
1565                                                                                                                                 osrfHashGet(kid_link, "class")
1566                                                                                                                         ),
1567                                                                                                                         "fields"
1568                                                                                                                 ),
1569                                                                                                                 osrfStringArrayGetString( link_map, 0 )
1570                                                                                                         ),
1571                                                                                                         "array_position"
1572                                                                                                 )
1573                                                                                         )
1574                                                                                 )
1575                                                                         )
1576                                                                 );
1577                                                         }
1578                                                 }
1579
1580                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "has_a" )) || !(strcmp( osrfHashGet(kid_link, "reltype"), "might_have" ))) {
1581                                                         osrfLogDebug(OSRF_LOG_MARK, "Storing fleshed objects in %s", osrfHashGet(kid_link, "field"));
1582                                                         jsonObjectSetIndex(
1583                                                                 cur->item,
1584                                                                 (unsigned long)atoi( osrfHashGet( field, "array_position" ) ),
1585                                                                 jsonObjectClone( jsonObjectGetIndex(kids, 0) )
1586                                                         );
1587                                                 }
1588
1589                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "has_many" ))) { // has_many
1590                                                         osrfLogDebug(OSRF_LOG_MARK, "Storing fleshed objects in %s", osrfHashGet(kid_link, "field"));
1591                                                         jsonObjectSetIndex(
1592                                                                 cur->item,
1593                                                                 (unsigned long)atoi( osrfHashGet( field, "array_position" ) ),
1594                                                                 jsonObjectClone( kids )
1595                                                         );
1596                                                 }
1597
1598                                                 if (X) {
1599                                                         jsonObjectFree(kids);
1600                                                         kids = X;
1601                                                 }
1602
1603                                                 jsonObjectFree( kids );
1604                                                 jsonObjectFree( fake_params );
1605
1606                                                 osrfLogDebug(OSRF_LOG_MARK, "Fleshing of %s complete", osrfHashGet(kid_link, "field"));
1607                                                 osrfLogDebug(OSRF_LOG_MARK, "%s", jsonObjectToJSON(cur->item));
1608
1609                                         }
1610                                 }
1611                                 jsonObjectFree( flesh_blob );
1612                                 osrfStringArrayFree(link_fields);
1613                                 jsonObjectIteratorFree(itr);
1614                         }
1615                 }
1616         }
1617
1618         return res_list;
1619 }
1620
1621
1622 jsonObject* doUpdate(osrfMethodContext* ctx, int* err ) {
1623
1624         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
1625         jsonObject* target = jsonObjectGetIndex(ctx->params, 0);
1626
1627         if (!verifyObjectClass(ctx, target)) {
1628                 *err = -1;
1629                 return jsonNULL;
1630         }
1631
1632         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
1633                 osrfAppSessionStatus(
1634                         ctx->session,
1635                         OSRF_STATUS_BADREQUEST,
1636                         "osrfMethodException",
1637                         ctx->request,
1638                         "No active transaction -- required for UPDATE"
1639                 );
1640                 *err = -1;
1641                 return jsonNULL;
1642         }
1643
1644         dbhandle = writehandle;
1645
1646         char* trans_id = osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" );
1647
1648         // Set the last_xact_id
1649         osrfHash* last_xact_id;
1650         if ((last_xact_id = oilsIDLFindPath("/%s/fields/last_xact_id", target->classname))) {
1651                 int index = atoi( osrfHashGet(last_xact_id, "array_position") );
1652                 osrfLogDebug(OSRF_LOG_MARK, "Setting last_xact_id to %s on %s at position %d", trans_id, target->classname, index);
1653                 jsonObjectSetIndex(target, index, jsonNewObject(trans_id));
1654         }
1655
1656         char* pkey = osrfHashGet(meta, "primarykey");
1657         osrfHash* fields = osrfHashGet(meta, "fields");
1658
1659         char* id =
1660                 jsonObjectToSimpleString(
1661                         jsonObjectGetIndex(
1662                                 target,
1663                                 atoi( osrfHashGet( osrfHashGet( fields, pkey ), "array_position" ) )
1664                         )
1665                 );
1666
1667         osrfLogDebug(
1668                 OSRF_LOG_MARK,
1669                 "%s updating %s object with %s = %s",
1670                 MODULENAME,
1671                 osrfHashGet(meta, "fieldmapper"),
1672                 pkey,
1673                 id
1674         );
1675
1676         growing_buffer* sql = buffer_init(128);
1677         buffer_fadd(sql,"UPDATE %s SET", osrfHashGet(meta, "tablename"));
1678
1679         int i = 0;
1680         int first = 1;
1681         char* field_name;
1682         osrfStringArray* field_list = osrfHashKeys( fields );
1683         while ( (field_name = osrfStringArrayGetString(field_list, i++)) ) {
1684
1685                 osrfHash* field = osrfHashGet( fields, field_name );
1686
1687                 if(!( strcmp( field_name, pkey ) )) continue;
1688                 if(!( strcmp( osrfHashGet(osrfHashGet(fields,field_name), "virtual"), "true" ) )) continue;
1689
1690                 int pos = atoi(osrfHashGet(field, "array_position"));
1691                 char* value = jsonObjectToSimpleString( jsonObjectGetIndex( target, pos ) );
1692
1693                 osrfLogDebug( OSRF_LOG_MARK, "Updating %s object with %s = %s", osrfHashGet(meta, "fieldmapper"), field_name, value);
1694
1695                 if (!jsonObjectGetIndex(target, pos) || jsonObjectGetIndex(target, pos)->type == JSON_NULL) {
1696                         if ( !(!( strcmp( osrfHashGet(meta, "classname"), "au" ) ) && !( strcmp( field_name, "passwd" ) )) ) { // arg at the special case!
1697                                 if (first) first = 0;
1698                                 else buffer_add(sql, ",");
1699                                 buffer_fadd( sql, " %s = NULL", field_name );
1700                         }
1701
1702                 } else if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1703                         if (first) first = 0;
1704                         else buffer_add(sql, ",");
1705
1706                         if ( !strncmp(osrfHashGet(field, "datatype"), "INT", (size_t)3) ) {
1707                                 buffer_fadd( sql, " %s = %ld", field_name, atol(value) );
1708                         } else if ( !strcmp(osrfHashGet(field, "datatype"), "NUMERIC") ) {
1709                                 buffer_fadd( sql, " %s = %f", field_name, atof(value) );
1710                         }
1711
1712                         osrfLogDebug( OSRF_LOG_MARK, "%s is of type %s", field_name, osrfHashGet(field, "datatype"));
1713
1714                 } else {
1715                         if ( dbi_conn_quote_string(dbhandle, &value) ) {
1716                                 if (first) first = 0;
1717                                 else buffer_add(sql, ",");
1718                                 buffer_fadd( sql, " %s = %s", field_name, value );
1719
1720                         } else {
1721                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting string [%s]", MODULENAME, value);
1722                                 osrfAppSessionStatus(
1723                                         ctx->session,
1724                                         OSRF_STATUS_INTERNALSERVERERROR,
1725                                         "osrfMethodException",
1726                                         ctx->request,
1727                                         "Error quoting string -- please see the error log for more details"
1728                                 );
1729                                 free(value);
1730                                 free(id);
1731                                 buffer_free(sql);
1732                                 *err = -1;
1733                                 return jsonNULL;
1734                         }
1735                 }
1736
1737                 free(value);
1738
1739         }
1740
1741         jsonObject* obj = jsonParseString(id);
1742
1743         if ( strcmp( osrfHashGet( osrfHashGet( osrfHashGet(meta, "fields"), pkey ), "primitive" ), "number" ) )
1744                 dbi_conn_quote_string(dbhandle, &id);
1745
1746         buffer_fadd( sql, " WHERE %s = %s;", pkey, id );
1747
1748         char* query = buffer_data(sql);
1749         buffer_free(sql);
1750
1751         osrfLogDebug(OSRF_LOG_MARK, "%s: Update SQL [%s]", MODULENAME, query);
1752
1753         dbi_result result = dbi_conn_query(dbhandle, query);
1754         free(query);
1755
1756         if (!result) {
1757                 jsonObjectFree(obj);
1758                 obj = jsonNewObject(NULL);
1759                 osrfLogError(
1760                         OSRF_LOG_MARK,
1761                         "%s ERROR updating %s object with %s = %s",
1762                         MODULENAME,
1763                         osrfHashGet(meta, "fieldmapper"),
1764                         pkey,
1765                         id
1766                 );
1767         }
1768
1769         free(id);
1770
1771         return obj;
1772 }
1773
1774 jsonObject* doDelete(osrfMethodContext* ctx, int* err ) {
1775
1776         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
1777
1778         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
1779                 osrfAppSessionStatus(
1780                         ctx->session,
1781                         OSRF_STATUS_BADREQUEST,
1782                         "osrfMethodException",
1783                         ctx->request,
1784                         "No active transaction -- required for DELETE"
1785                 );
1786                 *err = -1;
1787                 return jsonNULL;
1788         }
1789
1790         dbhandle = writehandle;
1791
1792         jsonObject* obj;
1793
1794         char* pkey = osrfHashGet(meta, "primarykey");
1795
1796         char* id;
1797         if (jsonObjectGetIndex(ctx->params, 0)->classname) {
1798                 if (!verifyObjectClass(ctx, jsonObjectGetIndex( ctx->params, 0 ))) {
1799                         *err = -1;
1800                         return jsonNULL;
1801                 }
1802
1803                 id = jsonObjectToSimpleString(
1804                         jsonObjectGetIndex(
1805                                 jsonObjectGetIndex(ctx->params, 0),
1806                                 atoi( osrfHashGet( osrfHashGet( osrfHashGet(meta, "fields"), pkey ), "array_position") )
1807                         )
1808                 );
1809         } else {
1810                 id = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
1811         }
1812
1813         osrfLogDebug(
1814                 OSRF_LOG_MARK,
1815                 "%s deleting %s object with %s = %s",
1816                 MODULENAME,
1817                 osrfHashGet(meta, "fieldmapper"),
1818                 pkey,
1819                 id
1820         );
1821
1822         obj = jsonParseString(id);
1823
1824         if ( strcmp( osrfHashGet( osrfHashGet( osrfHashGet(meta, "fields"), pkey ), "primitive" ), "number" ) )
1825                 dbi_conn_quote_string(writehandle, &id);
1826
1827         dbi_result result = dbi_conn_queryf(writehandle, "DELETE FROM %s WHERE %s = %s;", osrfHashGet(meta, "tablename"), pkey, id);
1828
1829         if (!result) {
1830                 jsonObjectFree(obj);
1831                 obj = jsonNewObject(NULL);
1832                 osrfLogError(
1833                         OSRF_LOG_MARK,
1834                         "%s ERROR deleting %s object with %s = %s",
1835                         MODULENAME,
1836                         osrfHashGet(meta, "fieldmapper"),
1837                         pkey,
1838                         id
1839                 );
1840         }
1841
1842         free(id);
1843
1844         return obj;
1845
1846 }
1847
1848
1849 jsonObject* oilsMakeJSONFromResult( dbi_result result, osrfHash* meta) {
1850         if(!(result && meta)) return jsonNULL;
1851
1852         jsonObject* object = jsonParseString("[]");
1853         jsonObjectSetClass(object, osrfHashGet(meta, "classname"));
1854
1855         osrfHash* fields = osrfHashGet(meta, "fields");
1856
1857         osrfLogInternal(OSRF_LOG_MARK, "Setting object class to %s ", object->classname);
1858
1859         osrfHash* _f;
1860         time_t _tmp_dt;
1861         char dt_string[256];
1862         struct tm gmdt;
1863
1864         int fmIndex;
1865         int columnIndex = 1;
1866         int attr;
1867         unsigned short type;
1868         const char* columnName;
1869
1870         /* cycle through the column list */
1871         while( (columnName = dbi_result_get_field_name(result, columnIndex++)) ) {
1872
1873                 osrfLogInternal(OSRF_LOG_MARK, "Looking for column named [%s]...", (char*)columnName);
1874
1875                 fmIndex = -1; // reset the position
1876
1877                 /* determine the field type and storage attributes */
1878                 type = dbi_result_get_field_type(result, columnName);
1879                 attr = dbi_result_get_field_attribs(result, columnName);
1880
1881                 /* fetch the fieldmapper index */
1882                 if( (_f = osrfHashGet(fields, (char*)columnName)) ) {
1883                         char* virt = (char*)osrfHashGet(_f, "virtual");
1884                         char* pos = (char*)osrfHashGet(_f, "array_position");
1885
1886                         if ( !virt || !pos || !(strcmp( virt, "true" )) ) continue;
1887
1888                         fmIndex = atoi( pos );
1889                         osrfLogInternal(OSRF_LOG_MARK, "... Found column at position [%s]...", pos);
1890                 } else {
1891                         continue;
1892                 }
1893
1894                 if (dbi_result_field_is_null(result, columnName)) {
1895                         jsonObjectSetIndex( object, fmIndex, jsonNewObject(NULL) );
1896                 } else {
1897
1898                         switch( type ) {
1899
1900                                 case DBI_TYPE_INTEGER :
1901
1902                                         if( attr & DBI_INTEGER_SIZE8 )
1903                                                 jsonObjectSetIndex( object, fmIndex,
1904                                                         jsonNewNumberObject(dbi_result_get_longlong(result, columnName)));
1905                                         else
1906                                                 jsonObjectSetIndex( object, fmIndex,
1907                                                         jsonNewNumberObject(dbi_result_get_long(result, columnName)));
1908
1909                                         break;
1910
1911                                 case DBI_TYPE_DECIMAL :
1912                                         jsonObjectSetIndex( object, fmIndex,
1913                                                         jsonNewNumberObject(dbi_result_get_double(result, columnName)));
1914                                         break;
1915
1916                                 case DBI_TYPE_STRING :
1917
1918
1919                                         jsonObjectSetIndex(
1920                                                 object,
1921                                                 fmIndex,
1922                                                 jsonNewObject( dbi_result_get_string(result, columnName) )
1923                                         );
1924
1925                                         break;
1926
1927                                 case DBI_TYPE_DATETIME :
1928
1929                                         memset(dt_string, '\0', 256);
1930                                         memset(&gmdt, '\0', sizeof(gmdt));
1931                                         memset(&_tmp_dt, '\0', sizeof(_tmp_dt));
1932
1933                                         _tmp_dt = dbi_result_get_datetime(result, columnName);
1934
1935                                         localtime_r( &_tmp_dt, &gmdt );
1936
1937                                         if (!(attr & DBI_DATETIME_DATE)) {
1938                                                 strftime(dt_string, 255, "%T", &gmdt);
1939                                         } else if (!(attr & DBI_DATETIME_TIME)) {
1940                                                 strftime(dt_string, 255, "%F", &gmdt);
1941                                         } else {
1942                                                 strftime(dt_string, 255, "%FT%T%z", &gmdt);
1943                                         }
1944
1945                                         jsonObjectSetIndex( object, fmIndex, jsonNewObject(dt_string) );
1946
1947                                         break;
1948
1949                                 case DBI_TYPE_BINARY :
1950                                         osrfLogError( OSRF_LOG_MARK,
1951                                                 "Can't do binary at column %s : index %d", columnName, columnIndex - 1);
1952                         }
1953                 }
1954         }
1955
1956         return object;
1957 }
1958