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

   1 #include "opensrf/osrf_application.h"
   2 #include "opensrf/osrf_settings.h"
   3 #include "opensrf/osrf_message.h"
   4 #include "opensrf/utils.h"
   5 #include "objson/object.h"
   6 #include "opensrf/log.h"
   7 #include "openils/oils_idl.h"
   8 #include <dbi/dbi.h>
   9
  10 #include <time.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13 #include <unistd.h>
  14
  15 #ifdef RSTORE
  16 #  define MODULENAME "open-ils.reporter-store"
  17 #else
  18 #  define MODULENAME "open-ils.cstore"
  19 #endif
  20
  21 #define DISABLE_I18N    2
  22 #define SELECT_DISTINCT 1
  23 #define AND_OP_JOIN     0
  24 #define OR_OP_JOIN      1
  25
  26 int osrfAppChildInit();
  27 int osrfAppInitialize();
  28 void osrfAppChildExit();
  29
  30 static int verifyObjectClass ( osrfMethodContext*, const jsonObject* );
  31
  32 int beginTransaction ( osrfMethodContext* );
  33 int commitTransaction ( osrfMethodContext* );
  34 int rollbackTransaction ( osrfMethodContext* );
  35
  36 int setSavepoint ( osrfMethodContext* );
  37 int releaseSavepoint ( osrfMethodContext* );
  38 int rollbackSavepoint ( osrfMethodContext* );
  39
  40 int doJSONSearch ( osrfMethodContext* );
  41
  42 int dispatchCRUDMethod ( osrfMethodContext* );
  43 static jsonObject* doCreate ( osrfMethodContext*, int* );
  44 static jsonObject* doRetrieve ( osrfMethodContext*, int* );
  45 static jsonObject* doUpdate ( osrfMethodContext*, int* );
  46 static jsonObject* doDelete ( osrfMethodContext*, int* );
  47 static jsonObject* doFieldmapperSearch ( osrfMethodContext*, osrfHash*,
  48                 const jsonObject*, int* );
  49 static jsonObject* oilsMakeFieldmapperFromResult( dbi_result, osrfHash* );
  50 static jsonObject* oilsMakeJSONFromResult( dbi_result );
  51
  52 static char* searchWriteSimplePredicate ( const char*, osrfHash*,
  53         const char*, const char*, const char* );
  54 static char* searchSimplePredicate ( const char*, const char*, osrfHash*, const jsonObject* );
  55 static char* searchFunctionPredicate ( const char*, osrfHash*, const jsonObjectNode* );
  56 static char* searchFieldTransform ( const char*, osrfHash*, const jsonObject*);
  57 static char* searchFieldTransformPredicate ( const char*, osrfHash*, jsonObjectNode* );
  58 static char* searchBETWEENPredicate ( const char*, osrfHash*, jsonObject* );
  59 static char* searchINPredicate ( const char*, osrfHash*, const jsonObject*, const char* );
  60 static char* searchPredicate ( const char*, osrfHash*, jsonObject* );
  61 static char* searchJOIN ( const jsonObject*, osrfHash* );
  62 static char* searchWHERE ( const jsonObject*, osrfHash*, int );
  63 static char* buildSELECT ( jsonObject*, jsonObject*, osrfHash*, osrfMethodContext* );
  64
  65 static char* SELECT ( osrfMethodContext*, jsonObject*, jsonObject*, jsonObject*, jsonObject*, jsonObject*, jsonObject*, jsonObject*, int );
  66
  67 void userDataFree( void* );
  68 static void sessionDataFree( char*, void* );
  69 static char* getSourceDefinition( osrfHash* );
  70
  71 static dbi_conn writehandle; /* our MASTER db connection */
  72 static dbi_conn dbhandle; /* our CURRENT db connection */
  73 osrfHash readHandles;
  74 static jsonObject* jsonNULL = NULL; //
  75 static int max_flesh_depth = 100;
  76
  77 /* called when this process is about to exit */
  78 void osrfAppChildExit() {
  79         osrfLogDebug(OSRF_LOG_MARK, "Child is exiting, disconnecting from database...");
  80
  81         if (writehandle) {
  82                 dbi_conn_query(writehandle, "ROLLBACK;");
  83                 dbi_conn_close(writehandle);
  84                 writehandle = NULL;
  85         }
  86
  87         if (dbhandle)
  88                 dbi_conn_close(dbhandle);
  89
  90         // XXX add cleanup of readHandles whenever that gets used
  91
  92         return;
  93 }
  94
  95 int osrfAppInitialize() {
  96         growing_buffer* method_name;
  97
  98         osrfLogInfo(OSRF_LOG_MARK, "Initializing the CStore Server...");
  99         osrfLogInfo(OSRF_LOG_MARK, "Finding XML file...");
 100
 101         if (!oilsIDLInit( osrf_settings_host_value("/IDL") )) return 1; /* return non-zero to indicate error */
 102
 103         // Generic search thingy
 104         method_name =  buffer_init(64);
 105         buffer_fadd(method_name, "%s.json_query", MODULENAME);
 106         char* method_str = buffer_data(method_name);
 107         osrfAppRegisterMethod( MODULENAME, method_str, "doJSONSearch", "", 1, OSRF_METHOD_STREAMING );
 108         free(method_str);
 109
 110         // first we register all the transaction and savepoint methods
 111         buffer_reset(method_name);
 112         buffer_fadd(method_name, "%s.transaction.begin", MODULENAME);
 113         method_str = buffer_data(method_name);
 114         osrfAppRegisterMethod( MODULENAME, method_str, "beginTransaction", "", 0, 0 );
 115         free(method_str);
 116
 117         buffer_reset(method_name);
 118         buffer_fadd(method_name, "%s.transaction.commit", MODULENAME);
 119         method_str = buffer_data(method_name);
 120         osrfAppRegisterMethod( MODULENAME, method_str, "commitTransaction", "", 0, 0 );
 121         free(method_str);
 122
 123         buffer_reset(method_name);
 124         buffer_fadd(method_name, "%s.transaction.rollback", MODULENAME);
 125         method_str = buffer_data(method_name);
 126         osrfAppRegisterMethod( MODULENAME, method_str, "rollbackTransaction", "", 0, 0 );
 127         free(method_str);
 128
 129         buffer_reset(method_name);
 130         buffer_fadd(method_name, "%s.savepoint.set", MODULENAME);
 131         method_str = buffer_data(method_name);
 132         osrfAppRegisterMethod( MODULENAME, method_str, "setSavepoint", "", 1, 0 );
 133         free(method_str);
 134
 135         buffer_reset(method_name);
 136         buffer_fadd(method_name, "%s.savepoint.release", MODULENAME);
 137         method_str = buffer_data(method_name);
 138         osrfAppRegisterMethod( MODULENAME, method_str, "releaseSavepoint", "", 1, 0 );
 139         free(method_str);
 140
 141         buffer_reset(method_name);
 142         buffer_fadd(method_name, "%s.savepoint.rollback", MODULENAME);
 143         method_str = buffer_data(method_name);
 144         osrfAppRegisterMethod( MODULENAME, method_str, "rollbackSavepoint", "", 1, 0 );
 145         free(method_str);
 146
 147         buffer_free(method_name);
 148
 149         osrfStringArray* global_methods = osrfNewStringArray(6);
 150
 151         osrfStringArrayAdd( global_methods, "create" );
 152         osrfStringArrayAdd( global_methods, "retrieve" );
 153         osrfStringArrayAdd( global_methods, "update" );
 154         osrfStringArrayAdd( global_methods, "delete" );
 155         osrfStringArrayAdd( global_methods, "search" );
 156         osrfStringArrayAdd( global_methods, "id_list" );
 157
 158         int c_index = 0;
 159         char* classname;
 160         osrfStringArray* classes = osrfHashKeys( oilsIDL() );
 161         osrfLogDebug(OSRF_LOG_MARK, "%d classes loaded", classes->size );
 162         osrfLogDebug(OSRF_LOG_MARK, "At least %d methods will be generated", classes->size * global_methods->size);
 163
 164         while ( (classname = osrfStringArrayGetString(classes, c_index++)) ) {
 165                 osrfLogInfo(OSRF_LOG_MARK, "Generating class methods for %s", classname);
 166
 167                 osrfHash* idlClass = osrfHashGet(oilsIDL(), classname);
 168
 169                 if (!osrfStringArrayContains( osrfHashGet(idlClass, "controller"), MODULENAME )) {
 170                         osrfLogInfo(OSRF_LOG_MARK, "%s is not listed as a controller for %s, moving on", MODULENAME, classname);
 171                         continue;
 172                 }
 173
 174                 char* virt = osrfHashGet(idlClass, "virtual");
 175                 if (virt && !strcmp( virt, "true")) {
 176                         osrfLogDebug(OSRF_LOG_MARK, "Class %s is virtual, skipping", classname );
 177                         continue;
 178                 }
 179
 180                 int i = 0;
 181                 char* method_type;
 182                 char* st_tmp;
 183                 char* _fm;
 184                 char* part;
 185                 osrfHash* method_meta;
 186                 while ( (method_type = osrfStringArrayGetString(global_methods, i++)) ) {
 187                         osrfLogDebug(OSRF_LOG_MARK, "Using files to build %s class methods for %s", method_type, classname);
 188
 189                         if (!osrfHashGet(idlClass, "fieldmapper")) continue;
 190
 191                         char* readonly = osrfHashGet(idlClass, "readonly");
 192                         if (    readonly &&
 193                                 !strncasecmp( "true", readonly, 4) &&
 194                                 ( *method_type == 's' || *method_type == 'r' || *method_type == 'i')
 195                         ) continue;
 196
 197                         method_meta = osrfNewHash();
 198                         osrfHashSet(method_meta, idlClass, "class");
 199
 200                         _fm = strdup( (char*)osrfHashGet(idlClass, "fieldmapper") );
 201                         part = strtok_r(_fm, ":", &st_tmp);
 202
 203                         growing_buffer* method_name =  buffer_init(64);
 204                         buffer_fadd(method_name, "%s.direct.%s", MODULENAME, part);
 205
 206                         while ((part = strtok_r(NULL, ":", &st_tmp))) {
 207                                 buffer_fadd(method_name, ".%s", part);
 208                         }
 209                         buffer_fadd(method_name, ".%s", method_type);
 210
 211
 212                         char* method = buffer_release(method_name);
 213                         free(_fm);
 214
 215                         osrfHashSet( method_meta, method, "methodname" );
 216                         osrfHashSet( method_meta, strdup(method_type), "methodtype" );
 217
 218                         int flags = 0;
 219                         if (!(strcmp( method_type, "search" )) || !(strcmp( method_type, "id_list" ))) {
 220                                 flags = flags | OSRF_METHOD_STREAMING;
 221                         }
 222
 223                         osrfAppRegisterExtendedMethod(
 224                                 MODULENAME,
 225                                 method,
 226                                 "dispatchCRUDMethod",
 227                                 "",
 228                                 1,
 229                                 flags,
 230                                 (void*)method_meta
 231                         );
 232
 233                         free(method);
 234                 }
 235         }
 236
 237         osrfStringArrayFree( global_methods );
 238         return 0;
 239 }
 240
 241 static char* getSourceDefinition( osrfHash* class ) {
 242
 243         char* tabledef = osrfHashGet(class, "tablename");
 244
 245         if (!tabledef) {
 246                 growing_buffer* tablebuf = buffer_init(128);
 247                 tabledef = osrfHashGet(class, "source_definition");
 248                 if( !tabledef )
 249                         tabledef = "(null)";
 250                 buffer_fadd( tablebuf, "(%s)", tabledef );
 251                 tabledef = buffer_release(tablebuf);
 252         } else {
 253                 tabledef = strdup(tabledef);
 254         }
 255
 256         return tabledef;
 257 }
 258
 259 /**
 260  * Connects to the database
 261  */
 262 int osrfAppChildInit() {
 263
 264         osrfLogDebug(OSRF_LOG_MARK, "Attempting to initialize libdbi...");
 265         dbi_initialize(NULL);
 266         osrfLogDebug(OSRF_LOG_MARK, "... libdbi initialized.");
 267
 268         char* driver    = osrf_settings_host_value("/apps/%s/app_settings/driver", MODULENAME);
 269         char* user      = osrf_settings_host_value("/apps/%s/app_settings/database/user", MODULENAME);
 270         char* host      = osrf_settings_host_value("/apps/%s/app_settings/database/host", MODULENAME);
 271         char* port      = osrf_settings_host_value("/apps/%s/app_settings/database/port", MODULENAME);
 272         char* db        = osrf_settings_host_value("/apps/%s/app_settings/database/db", MODULENAME);
 273         char* pw        = osrf_settings_host_value("/apps/%s/app_settings/database/pw", MODULENAME);
 274         char* md        = osrf_settings_host_value("/apps/%s/app_settings/max_query_recursion", MODULENAME);
 275
 276         osrfLogDebug(OSRF_LOG_MARK, "Attempting to load the database driver [%s]...", driver);
 277         writehandle = dbi_conn_new(driver);
 278
 279         if(!writehandle) {
 280                 osrfLogError(OSRF_LOG_MARK, "Error loading database driver [%s]", driver);
 281                 return -1;
 282         }
 283         osrfLogDebug(OSRF_LOG_MARK, "Database driver [%s] seems OK", driver);
 284
 285         osrfLogInfo(OSRF_LOG_MARK, "%s connecting to database.  host=%s, "
 286                 "port=%s, user=%s, pw=%s, db=%s", MODULENAME, host, port, user, pw, db );
 287
 288         if(host) dbi_conn_set_option(writehandle, "host", host );
 289         if(port) dbi_conn_set_option_numeric( writehandle, "port", atoi(port) );
 290         if(user) dbi_conn_set_option(writehandle, "username", user);
 291         if(pw) dbi_conn_set_option(writehandle, "password", pw );
 292         if(db) dbi_conn_set_option(writehandle, "dbname", db );
 293
 294         if(md) max_flesh_depth = atoi(md);
 295         if(max_flesh_depth < 0) max_flesh_depth = 1;
 296         if(max_flesh_depth > 1000) max_flesh_depth = 1000;
 297
 298         free(user);
 299         free(host);
 300         free(port);
 301         free(db);
 302         free(pw);
 303
 304         const char* err;
 305         if (dbi_conn_connect(writehandle) < 0) {
 306                 sleep(1);
 307                 if (dbi_conn_connect(writehandle) < 0) {
 308                         dbi_conn_error(writehandle, &err);
 309                         osrfLogError( OSRF_LOG_MARK, "Error connecting to database: %s", err);
 310                         return -1;
 311                 }
 312         }
 313
 314         osrfLogInfo(OSRF_LOG_MARK, "%s successfully connected to the database", MODULENAME);
 315
 316         int attr;
 317         unsigned short type;
 318         int i = 0;
 319         char* classname;
 320         osrfStringArray* classes = osrfHashKeys( oilsIDL() );
 321
 322         while ( (classname = osrfStringArrayGetString(classes, i++)) ) {
 323                 osrfHash* class = osrfHashGet( oilsIDL(), classname );
 324                 osrfHash* fields = osrfHashGet( class, "fields" );
 325
 326                 char* virt = osrfHashGet(class, "virtual");
 327                 if (virt && !strcmp( virt, "true")) {
 328                         osrfLogDebug(OSRF_LOG_MARK, "Class %s is virtual, skipping", classname );
 329                         continue;
 330                 }
 331
 332                 char* tabledef = getSourceDefinition(class);
 333
 334                 growing_buffer* sql_buf = buffer_init(32);
 335                 buffer_fadd( sql_buf, "SELECT * FROM %s AS x WHERE 1=0;", tabledef );
 336
 337                 free(tabledef);
 338
 339                 char* sql = buffer_release(sql_buf);
 340                 osrfLogDebug(OSRF_LOG_MARK, "%s Investigatory SQL = %s", MODULENAME, sql);
 341
 342                 dbi_result result = dbi_conn_query(writehandle, sql);
 343                 free(sql);
 344
 345                 if (result) {
 346
 347                         int columnIndex = 1;
 348                         const char* columnName;
 349                         osrfHash* _f;
 350                         while( (columnName = dbi_result_get_field_name(result, columnIndex++)) ) {
 351
 352                                 osrfLogInternal(OSRF_LOG_MARK, "Looking for column named [%s]...", (char*)columnName);
 353
 354                                 /* fetch the fieldmapper index */
 355                                 if( (_f = osrfHashGet(fields, (char*)columnName)) ) {
 356
 357                                         osrfLogDebug(OSRF_LOG_MARK, "Found [%s] in IDL hash...", (char*)columnName);
 358
 359                                         /* determine the field type and storage attributes */
 360                                         type = dbi_result_get_field_type(result, columnName);
 361                                         attr = dbi_result_get_field_attribs(result, columnName);
 362
 363                                         switch( type ) {
 364
 365                                                 case DBI_TYPE_INTEGER :
 366
 367                                                         if ( !osrfHashGet(_f, "primitive") )
 368                                                                 osrfHashSet(_f,"number", "primitive");
 369
 370                                                         if( attr & DBI_INTEGER_SIZE8 )
 371                                                                 osrfHashSet(_f,"INT8", "datatype");
 372                                                         else
 373                                                                 osrfHashSet(_f,"INT", "datatype");
 374                                                         break;
 375
 376                                                 case DBI_TYPE_DECIMAL :
 377                                                         if ( !osrfHashGet(_f, "primitive") )
 378                                                                 osrfHashSet(_f,"number", "primitive");
 379
 380                                                         osrfHashSet(_f,"NUMERIC", "datatype");
 381                                                         break;
 382
 383                                                 case DBI_TYPE_STRING :
 384                                                         if ( !osrfHashGet(_f, "primitive") )
 385                                                                 osrfHashSet(_f,"string", "primitive");
 386                                                         osrfHashSet(_f,"TEXT", "datatype");
 387                                                         break;
 388
 389                                                 case DBI_TYPE_DATETIME :
 390                                                         if ( !osrfHashGet(_f, "primitive") )
 391                                                                 osrfHashSet(_f,"string", "primitive");
 392
 393                                                         osrfHashSet(_f,"TIMESTAMP", "datatype");
 394                                                         break;
 395
 396                                                 case DBI_TYPE_BINARY :
 397                                                         if ( !osrfHashGet(_f, "primitive") )
 398                                                                 osrfHashSet(_f,"string", "primitive");
 399
 400                                                         osrfHashSet(_f,"BYTEA", "datatype");
 401                                         }
 402
 403                                         osrfLogDebug(
 404                                                 OSRF_LOG_MARK,
 405                                                 "Setting [%s] to primitive [%s] and datatype [%s]...",
 406                                                 (char*)columnName,
 407                                                 osrfHashGet(_f, "primitive"),
 408                                                 osrfHashGet(_f, "datatype")
 409                                         );
 410                                 }
 411                         }
 412                         dbi_result_free(result);
 413                 } else {
 414                         osrfLogDebug(OSRF_LOG_MARK, "No data found for class [%s]...", (char*)classname);
 415                 }
 416         }
 417
 418         osrfStringArrayFree(classes);
 419
 420         return 0;
 421 }
 422
 423 void userDataFree( void* blob ) {
 424         osrfHashFree( (osrfHash*)blob );
 425         return;
 426 }
 427
 428 static void sessionDataFree( char* key, void* item ) {
 429         if (!(strcmp(key,"xact_id"))) {
 430                 if (writehandle)
 431                         dbi_conn_query(writehandle, "ROLLBACK;");
 432                 free(item);
 433         }
 434
 435         return;
 436 }
 437
 438 int beginTransaction ( osrfMethodContext* ctx ) {
 439         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 440
 441         dbi_result result = dbi_conn_query(writehandle, "START TRANSACTION;");
 442         if (!result) {
 443                 osrfLogError(OSRF_LOG_MARK, "%s: Error starting transaction", MODULENAME );
 444                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error starting transaction" );
 445                 return -1;
 446         } else {
 447                 jsonObject* ret = jsonNewObject(ctx->session->session_id);
 448                 osrfAppRespondComplete( ctx, ret );
 449                 jsonObjectFree(ret);
 450
 451                 if (!ctx->session->userData) {
 452                         ctx->session->userData = osrfNewHash();
 453                         ((osrfHash*)ctx->session->userData)->freeItem = &sessionDataFree;
 454                 }
 455
 456                 osrfHashSet( (osrfHash*)ctx->session->userData, strdup( ctx->session->session_id ), "xact_id" );
 457                 ctx->session->userDataFree = &userDataFree;
 458
 459         }
 460         return 0;
 461 }
 462
 463 int setSavepoint ( osrfMethodContext* ctx ) {
 464         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 465
 466         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 467                 osrfAppSessionStatus(
 468                         ctx->session,
 469                         OSRF_STATUS_INTERNALSERVERERROR,
 470                         "osrfMethodException",
 471                         ctx->request,
 472                         "No active transaction -- required for savepoints"
 473                 );
 474                 return -1;
 475         }
 476
 477         char* spName = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
 478
 479         dbi_result result = dbi_conn_queryf(writehandle, "SAVEPOINT \"%s\";", spName);
 480         if (!result) {
 481                 osrfLogError(
 482                         OSRF_LOG_MARK,
 483                         "%s: Error creating savepoint %s in transaction %s",
 484                         MODULENAME,
 485                         spName,
 486                         osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )
 487                 );
 488                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error creating savepoint" );
 489                 free(spName);
 490                 return -1;
 491         } else {
 492                 jsonObject* ret = jsonNewObject(spName);
 493                 osrfAppRespondComplete( ctx, ret );
 494                 jsonObjectFree(ret);
 495         }
 496         free(spName);
 497         return 0;
 498 }
 499
 500 int releaseSavepoint ( osrfMethodContext* ctx ) {
 501         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 502
 503         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 504                 osrfAppSessionStatus(
 505                         ctx->session,
 506                         OSRF_STATUS_INTERNALSERVERERROR,
 507                         "osrfMethodException",
 508                         ctx->request,
 509                         "No active transaction -- required for savepoints"
 510                 );
 511                 return -1;
 512         }
 513
 514         char* spName = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
 515
 516         dbi_result result = dbi_conn_queryf(writehandle, "RELEASE SAVEPOINT \"%s\";", spName);
 517         if (!result) {
 518                 osrfLogError(
 519                         OSRF_LOG_MARK,
 520                         "%s: Error releasing savepoint %s in transaction %s",
 521                         MODULENAME,
 522                         spName,
 523                         osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )
 524                 );
 525                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error releasing savepoint" );
 526                 free(spName);
 527                 return -1;
 528         } else {
 529                 jsonObject* ret = jsonNewObject(spName);
 530                 osrfAppRespondComplete( ctx, ret );
 531                 jsonObjectFree(ret);
 532         }
 533         free(spName);
 534         return 0;
 535 }
 536
 537 int rollbackSavepoint ( osrfMethodContext* ctx ) {
 538         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 539
 540         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 541                 osrfAppSessionStatus(
 542                         ctx->session,
 543                         OSRF_STATUS_INTERNALSERVERERROR,
 544                         "osrfMethodException",
 545                         ctx->request,
 546                         "No active transaction -- required for savepoints"
 547                 );
 548                 return -1;
 549         }
 550
 551         char* spName = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
 552
 553         dbi_result result = dbi_conn_queryf(writehandle, "ROLLBACK TO SAVEPOINT \"%s\";", spName);
 554         if (!result) {
 555                 osrfLogError(
 556                         OSRF_LOG_MARK,
 557                         "%s: Error rolling back savepoint %s in transaction %s",
 558                         MODULENAME,
 559                         spName,
 560                         osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )
 561                 );
 562                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error rolling back savepoint" );
 563                 free(spName);
 564                 return -1;
 565         } else {
 566                 jsonObject* ret = jsonNewObject(spName);
 567                 osrfAppRespondComplete( ctx, ret );
 568                 jsonObjectFree(ret);
 569         }
 570         free(spName);
 571         return 0;
 572 }
 573
 574 int commitTransaction ( osrfMethodContext* ctx ) {
 575         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 576
 577         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 578                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "No active transaction to commit" );
 579                 return -1;
 580         }
 581
 582         dbi_result result = dbi_conn_query(writehandle, "COMMIT;");
 583         if (!result) {
 584                 osrfLogError(OSRF_LOG_MARK, "%s: Error committing transaction", MODULENAME );
 585                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error committing transaction" );
 586                 return -1;
 587         } else {
 588                 osrfHashRemove(ctx->session->userData, "xact_id");
 589                 jsonObject* ret = jsonNewObject(ctx->session->session_id);
 590                 osrfAppRespondComplete( ctx, ret );
 591                 jsonObjectFree(ret);
 592         }
 593         return 0;
 594 }
 595
 596 int rollbackTransaction ( osrfMethodContext* ctx ) {
 597         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 598
 599         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 600                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "No active transaction to roll back" );
 601                 return -1;
 602         }
 603
 604         dbi_result result = dbi_conn_query(writehandle, "ROLLBACK;");
 605         if (!result) {
 606                 osrfLogError(OSRF_LOG_MARK, "%s: Error rolling back transaction", MODULENAME );
 607                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error rolling back transaction" );
 608                 return -1;
 609         } else {
 610                 osrfHashRemove(ctx->session->userData, "xact_id");
 611                 jsonObject* ret = jsonNewObject(ctx->session->session_id);
 612                 osrfAppRespondComplete( ctx, ret );
 613                 jsonObjectFree(ret);
 614         }
 615         return 0;
 616 }
 617
 618 int dispatchCRUDMethod ( osrfMethodContext* ctx ) {
 619         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 620
 621         osrfHash* meta = (osrfHash*) ctx->method->userData;
 622         osrfHash* class_obj = osrfHashGet( meta, "class" );
 623
 624         int err = 0;
 625
 626         jsonObject * obj = NULL;
 627         if (!strcmp( (char*)osrfHashGet(meta, "methodtype"), "create"))
 628                 obj = doCreate(ctx, &err);
 629
 630         if (!strcmp( (char*)osrfHashGet(meta, "methodtype"), "retrieve"))
 631                 obj = doRetrieve(ctx, &err);
 632
 633         if (!strcmp( (char*)osrfHashGet(meta, "methodtype"), "update"))
 634                 obj = doUpdate(ctx, &err);
 635
 636         if (!strcmp( (char*)osrfHashGet(meta, "methodtype"), "delete"))
 637                 obj = doDelete(ctx, &err);
 638
 639         if (!strcmp( (char*)osrfHashGet(meta, "methodtype"), "search")) {
 640
 641                 obj = doFieldmapperSearch(ctx, class_obj, ctx->params, &err);
 642                 if(err) return err;
 643
 644                 jsonObjectNode* cur;
 645                 jsonObjectIterator* itr = jsonNewObjectIterator( obj );
 646                 while ((cur = jsonObjectIteratorNext( itr ))) {
 647                         osrfAppRespond( ctx, cur->item );
 648                 }
 649                 jsonObjectIteratorFree(itr);
 650                 osrfAppRespondComplete( ctx, NULL );
 651
 652         } else if (!strcmp( (char*)osrfHashGet(meta, "methodtype"), "id_list")) {
 653
 654                 jsonObject* _p = jsonObjectClone( ctx->params );
 655                 if (jsonObjectGetIndex( _p, 1 )) {
 656                         jsonObjectRemoveKey( jsonObjectGetIndex( _p, 1 ), "flesh" );
 657                         jsonObjectRemoveKey( jsonObjectGetIndex( _p, 1 ), "flesh_columns" );
 658                 } else {
 659                         jsonObjectSetIndex( _p, 1, jsonParseString("{}") );
 660                 }
 661
 662                 growing_buffer* sel_list = buffer_init(16);
 663                 buffer_fadd(sel_list, "{ \"%s\":[\"%s\"] }", osrfHashGet( class_obj, "classname" ), osrfHashGet( class_obj, "primarykey" ));
 664                 char* _s = buffer_release(sel_list);
 665
 666                 jsonObjectSetKey( jsonObjectGetIndex( _p, 1 ), "select", jsonParseString(_s) );
 667                 osrfLogDebug(OSRF_LOG_MARK, "%s: Select qualifer set to [%s]", MODULENAME, _s);
 668                 free(_s);
 669
 670                 obj = doFieldmapperSearch(ctx, class_obj, _p, &err);
 671                 jsonObjectFree(_p);
 672                 if(err) return err;
 673
 674                 jsonObjectNode* cur;
 675                 jsonObjectIterator* itr = jsonNewObjectIterator( obj );
 676                 while ((cur = jsonObjectIteratorNext( itr ))) {
 677                         osrfAppRespond(
 678                                 ctx,
 679                                 jsonObjectGetIndex(
 680                                         cur->item,
 681                                         atoi(
 682                                                 osrfHashGet(
 683                                                         osrfHashGet(
 684                                                                 osrfHashGet( class_obj, "fields" ),
 685                                                                 osrfHashGet( class_obj, "primarykey")
 686                                                         ),
 687                                                         "array_position"
 688                                                 )
 689                                         )
 690                                 )
 691                         );
 692                 }
 693                 jsonObjectIteratorFree(itr);
 694                 osrfAppRespondComplete( ctx, NULL );
 695
 696         } else {
 697                 osrfAppRespondComplete( ctx, obj );
 698         }
 699
 700         jsonObjectFree(obj);
 701
 702         return err;
 703 }
 704
 705 static int verifyObjectClass ( osrfMethodContext* ctx, const jsonObject* param ) {
 706
 707         osrfHash* meta = (osrfHash*) ctx->method->userData;
 708         osrfHash* class = osrfHashGet( meta, "class" );
 709
 710         if (!param->classname || (strcmp( osrfHashGet(class, "classname"), param->classname ))) {
 711
 712                 growing_buffer* msg = buffer_init(128);
 713                 buffer_fadd(
 714                         msg,
 715                         "%s: %s method for type %s was passed a %s",
 716                         MODULENAME,
 717                         osrfHashGet(meta, "methodtype"),
 718                         osrfHashGet(class, "classname"),
 719                         param->classname
 720                 );
 721
 722                 char* m = buffer_release(msg);
 723                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_BADREQUEST, "osrfMethodException", ctx->request, m );
 724
 725                 free(m);
 726
 727                 return 0;
 728         }
 729         return 1;
 730 }
 731
 732 static jsonObject* doCreate(osrfMethodContext* ctx, int* err ) {
 733
 734         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
 735         jsonObject* target = jsonObjectGetIndex( ctx->params, 0 );
 736         jsonObject* options = jsonObjectGetIndex( ctx->params, 1 );
 737
 738         if (!verifyObjectClass(ctx, target)) {
 739                 *err = -1;
 740                 return jsonNULL;
 741         }
 742
 743         osrfLogDebug( OSRF_LOG_MARK, "Object seems to be of the correct type" );
 744
 745         if (!ctx->session || !ctx->session->userData || !osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 746                 osrfLogError( OSRF_LOG_MARK, "No active transaction -- required for CREATE" );
 747
 748                 osrfAppSessionStatus(
 749                         ctx->session,
 750                         OSRF_STATUS_BADREQUEST,
 751                         "osrfMethodException",
 752                         ctx->request,
 753                         "No active transaction -- required for CREATE"
 754                 );
 755                 *err = -1;
 756                 return jsonNULL;
 757         }
 758
 759         if (osrfHashGet( meta, "readonly" ) && strncasecmp("true", osrfHashGet( meta, "readonly" ), 4)) {
 760                 osrfAppSessionStatus(
 761                         ctx->session,
 762                         OSRF_STATUS_BADREQUEST,
 763                         "osrfMethodException",
 764                         ctx->request,
 765                         "Cannot INSERT readonly class"
 766                 );
 767                 *err = -1;
 768                 return jsonNULL;
 769         }
 770
 771
 772         char* trans_id = osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" );
 773
 774         // Set the last_xact_id
 775         osrfHash* last_xact_id;
 776         if ((last_xact_id = oilsIDLFindPath("/%s/fields/last_xact_id", target->classname))) {
 777                 int index = atoi( osrfHashGet(last_xact_id, "array_position") );
 778                 osrfLogDebug(OSRF_LOG_MARK, "Setting last_xact_id to %s on %s at position %d", trans_id, target->classname, index);
 779                 jsonObjectSetIndex(target, index, jsonNewObject(trans_id));
 780         }
 781
 782         osrfLogDebug( OSRF_LOG_MARK, "There is a transaction running..." );
 783
 784         dbhandle = writehandle;
 785
 786         osrfHash* fields = osrfHashGet(meta, "fields");
 787         char* pkey = osrfHashGet(meta, "primarykey");
 788         char* seq = osrfHashGet(meta, "sequence");
 789
 790         growing_buffer* table_buf = buffer_init(128);
 791         growing_buffer* col_buf = buffer_init(128);
 792         growing_buffer* val_buf = buffer_init(128);
 793
 794         buffer_fadd(table_buf,"INSERT INTO %s", osrfHashGet(meta, "tablename"));
 795         buffer_add(col_buf,"(");
 796         buffer_add(val_buf,"VALUES (");
 797
 798
 799         int i = 0;
 800         int first = 1;
 801         char* field_name;
 802         osrfStringArray* field_list = osrfHashKeys( fields );
 803         while ( (field_name = osrfStringArrayGetString(field_list, i++)) ) {
 804
 805                 osrfHash* field = osrfHashGet( fields, field_name );
 806
 807                 if(!( strcmp( osrfHashGet(osrfHashGet(fields,field_name), "virtual"), "true" ) )) continue;
 808
 809                 jsonObject* field_object = jsonObjectGetIndex( target, atoi(osrfHashGet(field, "array_position")) );
 810
 811                 char* value;
 812                 if (field_object && field_object->classname) {
 813                         value = jsonObjectToSimpleString(
 814                                         jsonObjectGetIndex(
 815                                                 field_object,
 816                                                 atoi(
 817                                                         osrfHashGet(
 818                                                                 osrfHashGet(
 819                                                                         oilsIDLFindPath("/%s/fields", field_object->classname),
 820                                                                         (char*)oilsIDLFindPath("/%s/primarykey", field_object->classname)
 821                                                                 ),
 822                                                                 "array_position"
 823                                                         )
 824                                                 )
 825                                         )
 826                                 );
 827
 828                 } else {
 829                         value = jsonObjectToSimpleString( field_object );
 830                 }
 831
 832
 833                 if (first) {
 834                         first = 0;
 835                 } else {
 836                         buffer_add(col_buf, ",");
 837                         buffer_add(val_buf, ",");
 838                 }
 839
 840                 buffer_add(col_buf, field_name);
 841
 842                 if (!field_object || field_object->type == JSON_NULL) {
 843                         buffer_add( val_buf, "DEFAULT" );
 844
 845                 } else if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
 846                         if ( !strcmp(osrfHashGet(field, "datatype"), "INT8") ) {
 847                                 buffer_fadd( val_buf, "%lld", atoll(value) );
 848
 849                         } else if ( !strcmp(osrfHashGet(field, "datatype"), "INT") ) {
 850                                 buffer_fadd( val_buf, "%d", atoi(value) );
 851
 852                         } else if ( !strcmp(osrfHashGet(field, "datatype"), "NUMERIC") ) {
 853                                 buffer_fadd( val_buf, "%f", atof(value) );
 854                         }
 855                 } else {
 856                         if ( dbi_conn_quote_string(writehandle, &value) ) {
 857                                 buffer_fadd( val_buf, "%s", value );
 858
 859                         } else {
 860                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting string [%s]", MODULENAME, value);
 861                                 osrfAppSessionStatus(
 862                                         ctx->session,
 863                                         OSRF_STATUS_INTERNALSERVERERROR,
 864                                         "osrfMethodException",
 865                                         ctx->request,
 866                                         "Error quoting string -- please see the error log for more details"
 867                                 );
 868                                 free(value);
 869                                 buffer_free(table_buf);
 870                                 buffer_free(col_buf);
 871                                 buffer_free(val_buf);
 872                                 *err = -1;
 873                                 return jsonNULL;
 874                         }
 875                 }
 876
 877                 free(value);
 878
 879         }
 880
 881
 882         buffer_add(col_buf,")");
 883         buffer_add(val_buf,")");
 884
 885         char* table_str = buffer_release(table_buf);
 886         char* col_str   = buffer_release(col_buf);
 887         char* val_str   = buffer_release(val_buf);
 888         growing_buffer* sql = buffer_init(128);
 889         buffer_fadd( sql, "%s %s %s;", table_str, col_str, val_str );
 890         free(table_str);
 891         free(col_str);
 892         free(val_str);
 893
 894         char* query = buffer_release(sql);
 895
 896         osrfLogDebug(OSRF_LOG_MARK, "%s: Insert SQL [%s]", MODULENAME, query);
 897
 898
 899         dbi_result result = dbi_conn_query(writehandle, query);
 900
 901         jsonObject* obj = NULL;
 902
 903         if (!result) {
 904                 obj = jsonNewObject(NULL);
 905                 osrfLogError(
 906                         OSRF_LOG_MARK,
 907                         "%s ERROR inserting %s object using query [%s]",
 908                         MODULENAME,
 909                         osrfHashGet(meta, "fieldmapper"),
 910                         query
 911                 );
 912                 osrfAppSessionStatus(
 913                         ctx->session,
 914                         OSRF_STATUS_INTERNALSERVERERROR,
 915                         "osrfMethodException",
 916                         ctx->request,
 917                         "INSERT error -- please see the error log for more details"
 918                 );
 919                 *err = -1;
 920         } else {
 921
 922                 int pos = atoi(osrfHashGet( osrfHashGet(fields, pkey), "array_position" ));
 923                 char* id = jsonObjectToSimpleString(jsonObjectGetIndex(target, pos));
 924                 if (!id) {
 925                         unsigned long long new_id = dbi_conn_sequence_last(writehandle, seq);
 926                         growing_buffer* _id = buffer_init(10);
 927                         buffer_fadd(_id, "%lld", new_id);
 928                         id = buffer_release(_id);
 929                 }
 930
 931                 // Find quietness specification, if present
 932                 char* quiet_str = NULL;
 933                 if ( options ) {
 934                         const jsonObject* quiet_obj = jsonObjectGetKeyConst( options, "quiet" );
 935                         if( quiet_obj )
 936                                 quiet_str = jsonObjectToSimpleString( quiet_obj );
 937                 }
 938
 939                 if( quiet_str && !strcmp( quiet_str, "true" )) {  // if quietness is specified
 940                         obj = jsonNewObject(id);
 941                 }
 942                 else {
 943
 944                         jsonObject* fake_params = jsonParseString("[]");
 945                         jsonObjectPush(fake_params, jsonParseString("{}"));
 946
 947                         jsonObjectSetKey(
 948                                 jsonObjectGetIndex(fake_params, 0),
 949                                 osrfHashGet(meta, "primarykey"),
 950                                 jsonNewObject(id)
 951                         );
 952
 953                         jsonObject* list = doFieldmapperSearch( ctx,meta, fake_params, err);
 954
 955                         if(*err) {
 956                                 jsonObjectFree( fake_params );
 957                                 obj = jsonNULL;
 958                         } else {
 959                                 obj = jsonObjectClone( jsonObjectGetIndex(list, 0) );
 960                         }
 961
 962                         jsonObjectFree( list );
 963                         jsonObjectFree( fake_params );
 964                 }
 965
 966                 if(quiet_str) free(quiet_str);
 967                 free(id);
 968         }
 969
 970         free(query);
 971
 972         return obj;
 973
 974 }
 975
 976
 977 static jsonObject* doRetrieve(osrfMethodContext* ctx, int* err ) {
 978
 979         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
 980
 981         jsonObject* obj;
 982
 983         char* id = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
 984         jsonObject* order_hash = jsonObjectGetIndex(ctx->params, 1);
 985
 986         osrfLogDebug(
 987                 OSRF_LOG_MARK,
 988                 "%s retrieving %s object with id %s",
 989                 MODULENAME,
 990                 osrfHashGet(meta, "fieldmapper"),
 991                 id
 992         );
 993
 994         jsonObject* fake_params = jsonParseString("[]");
 995         jsonObjectPush(fake_params, jsonParseString("{}"));
 996
 997         jsonObjectSetKey(
 998                 jsonObjectGetIndex(fake_params, 0),
 999                 osrfHashGet(meta, "primarykey"),
1000                 jsonParseString(id)
1001         );
1002
1003         free(id);
1004
1005         if (order_hash) jsonObjectPush(fake_params, jsonObjectClone(order_hash) );
1006
1007         jsonObject* list = doFieldmapperSearch( ctx,meta, fake_params, err);
1008
1009         if(*err) {
1010                 jsonObjectFree( fake_params );
1011                 return jsonNULL;
1012         }
1013
1014         obj = jsonObjectClone( jsonObjectGetIndex(list, 0) );
1015
1016         jsonObjectFree( list );
1017         jsonObjectFree( fake_params );
1018
1019         return obj;
1020 }
1021
1022 static char* jsonNumberToDBString ( osrfHash* field, const jsonObject* value ) {
1023         growing_buffer* val_buf = buffer_init(32);
1024
1025         if ( !strncmp(osrfHashGet(field, "datatype"), "INT", (size_t)3) ) {
1026                 if (value->type == JSON_NUMBER) buffer_fadd( val_buf, "%ld", (long)jsonObjectGetNumber(value) );
1027                 else {
1028                         char* val_str = jsonObjectToSimpleString(value);
1029                         buffer_fadd( val_buf, "%ld", atol(val_str) );
1030                         free(val_str);
1031                 }
1032
1033         } else if ( !strcmp(osrfHashGet(field, "datatype"), "NUMERIC") ) {
1034                 if (value->type == JSON_NUMBER) buffer_fadd( val_buf, "%f",  jsonObjectGetNumber(value) );
1035                 else {
1036                         char* val_str = jsonObjectToSimpleString(value);
1037                         buffer_fadd( val_buf, "%f", atof(val_str) );
1038                         free(val_str);
1039                 }
1040         }
1041
1042         return buffer_release(val_buf);
1043 }
1044
1045 static char* searchINPredicate (const char* class, osrfHash* field,
1046                 const jsonObject* node, const char* op) {
1047         growing_buffer* sql_buf = buffer_init(32);
1048
1049         buffer_fadd(
1050                 sql_buf,
1051                 "\"%s\".%s ",
1052                 class,
1053                 osrfHashGet(field, "name")
1054         );
1055
1056         if (!op) {
1057                 buffer_add(sql_buf, "IN (");
1058         } else if (!(strcasecmp(op,"not in"))) {
1059                 buffer_add(sql_buf, "NOT IN (");
1060         } else {
1061                 buffer_add(sql_buf, "IN (");
1062         }
1063
1064         int in_item_index = 0;
1065         int in_item_first = 1;
1066         jsonObject* in_item;
1067         while ( (in_item = jsonObjectGetIndex(node, in_item_index++)) ) {
1068
1069                 if (in_item_first)
1070                         in_item_first = 0;
1071                 else
1072                         buffer_add(sql_buf, ", ");
1073
1074                 if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1075                         char* val = jsonNumberToDBString( field, in_item );
1076                         buffer_fadd( sql_buf, "%s", val );
1077                         free(val);
1078
1079                 } else {
1080                         char* key_string = jsonObjectToSimpleString(in_item);
1081                         if ( dbi_conn_quote_string(dbhandle, &key_string) ) {
1082                                 buffer_fadd( sql_buf, "%s", key_string );
1083                                 free(key_string);
1084                         } else {
1085                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, key_string);
1086                                 free(key_string);
1087                                 buffer_free(sql_buf);
1088                                 return NULL;
1089                         }
1090                 }
1091         }
1092
1093         buffer_add(
1094                 sql_buf,
1095                 ")"
1096         );
1097
1098         return buffer_release(sql_buf);
1099 }
1100
1101 static char* searchValueTransform( const jsonObject* array ) {
1102         growing_buffer* sql_buf = buffer_init(32);
1103
1104         char* val = NULL;
1105         int func_item_index = 0;
1106         int func_item_first = 2;
1107         jsonObject* func_item;
1108         while ( (func_item = jsonObjectGetIndex(array, func_item_index++)) ) {
1109
1110                 val = jsonObjectToSimpleString(func_item);
1111
1112                 if (func_item_first == 2) {
1113                         buffer_fadd(sql_buf, "%s( ", val);
1114                         free(val);
1115                         func_item_first--;
1116                         continue;
1117                 }
1118
1119                 if (func_item_first)
1120                         func_item_first--;
1121                 else
1122                         buffer_add(sql_buf, ", ");
1123
1124                 if ( dbi_conn_quote_string(dbhandle, &val) ) {
1125                         buffer_fadd( sql_buf, "%s", val );
1126                         free(val);
1127                 } else {
1128                         osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, val);
1129                         free(val);
1130                         buffer_free(sql_buf);
1131                         return NULL;
1132                 }
1133         }
1134
1135         buffer_add(
1136                 sql_buf,
1137                 " )"
1138         );
1139
1140         return buffer_release(sql_buf);
1141 }
1142
1143 static char* searchFunctionPredicate (const char* class, osrfHash* field,
1144                 const jsonObjectNode* node) {
1145         growing_buffer* sql_buf = buffer_init(32);
1146
1147         char* val = searchValueTransform(node->item);
1148
1149         buffer_fadd(
1150                 sql_buf,
1151                 "\"%s\".%s %s %s",
1152                 class,
1153                 osrfHashGet(field, "name"),
1154                 node->key,
1155                 val
1156         );
1157
1158         free(val);
1159
1160         return buffer_release(sql_buf);
1161 }
1162
1163 static char* searchFieldTransform (const char* class, osrfHash* field, const jsonObject* node) {
1164         growing_buffer* sql_buf = buffer_init(32);
1165
1166         char* field_transform = jsonObjectToSimpleString( jsonObjectGetKeyConst( node, "transform" ) );
1167         char* transform_subcolumn = jsonObjectToSimpleString( jsonObjectGetKeyConst( node, "result_field" ) );
1168
1169         if (field_transform) {
1170                 buffer_fadd( sql_buf, "%s(\"%s\".%s", field_transform, class, osrfHashGet(field, "name"));
1171             const jsonObject* array = jsonObjectGetKeyConst( node, "params" );
1172
1173         if (array) {
1174                 int func_item_index = 0;
1175                 jsonObject* func_item;
1176                 while ( (func_item = jsonObjectGetIndex(array, func_item_index++)) ) {
1177
1178                         char* val = jsonObjectToSimpleString(func_item);
1179
1180                     if ( dbi_conn_quote_string(dbhandle, &val) ) {
1181                             buffer_fadd( sql_buf, ",%s", val );
1182                         } else {
1183                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, val);
1184                             free(field_transform);
1185                                         free(val);
1186                                 buffer_free(sql_buf);
1187                                 return NULL;
1188                 }
1189                                 free(val);
1190                         }
1191
1192         }
1193
1194         buffer_add(
1195                 sql_buf,
1196                 " )"
1197         );
1198
1199         } else {
1200                 buffer_fadd( sql_buf, "\"%s\".%s", class, osrfHashGet(field, "name"));
1201         }
1202
1203     if (transform_subcolumn) {
1204         char * tmp = buffer_release(sql_buf);
1205         sql_buf = buffer_init(32);
1206         buffer_fadd(
1207             sql_buf,
1208             "(%s).\"%s\"",
1209             tmp,
1210             transform_subcolumn
1211         );
1212         free(tmp);
1213     }
1214
1215         if (field_transform) free(field_transform);
1216         if (transform_subcolumn) free(transform_subcolumn);
1217
1218         return buffer_release(sql_buf);
1219 }
1220
1221 static char* searchFieldTransformPredicate (const char* class, osrfHash* field, jsonObjectNode* node) {
1222         char* field_transform = searchFieldTransform( class, field, node->item );
1223         char* value = NULL;
1224
1225         if (!jsonObjectGetKeyConst( node->item, "value" )) {
1226                 value = searchWHERE( node->item, osrfHashGet( oilsIDL(), class ), AND_OP_JOIN );
1227         } else if (jsonObjectGetKeyConst( node->item, "value" )->type == JSON_ARRAY) {
1228                 value = searchValueTransform(jsonObjectGetKeyConst( node->item, "value" ));
1229         } else if (jsonObjectGetKeyConst( node->item, "value" )->type == JSON_HASH) {
1230                 value = searchWHERE( jsonObjectGetKeyConst( node->item, "value" ), osrfHashGet( oilsIDL(), class ), AND_OP_JOIN );
1231         } else if (jsonObjectGetKeyConst( node->item, "value" )->type != JSON_NULL) {
1232                 if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1233                         value = jsonNumberToDBString( field, jsonObjectGetKeyConst( node->item, "value" ) );
1234                 } else {
1235                         value = jsonObjectToSimpleString(jsonObjectGetKeyConst( node->item, "value" ));
1236                         if ( !dbi_conn_quote_string(dbhandle, &value) ) {
1237                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, value);
1238                                 free(value);
1239                                 free(field_transform);
1240                                 return NULL;
1241                         }
1242                 }
1243         }
1244
1245         growing_buffer* sql_buf = buffer_init(32);
1246
1247         buffer_fadd(
1248                 sql_buf,
1249                 "%s %s %s",
1250                 field_transform,
1251                 node->key,
1252                 value
1253         );
1254
1255         free(value);
1256         free(field_transform);
1257
1258         return buffer_release(sql_buf);
1259 }
1260
1261 static char* searchSimplePredicate (const char* orig_op, const char* class,
1262                 osrfHash* field, const jsonObject* node) {
1263
1264         char* val = NULL;
1265
1266         if (node->type != JSON_NULL) {
1267                 if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1268                         val = jsonNumberToDBString( field, node );
1269                 } else {
1270                         val = jsonObjectToSimpleString(node);
1271                 }
1272         }
1273
1274         char* pred = searchWriteSimplePredicate( class, field, osrfHashGet(field, "name"), orig_op, val );
1275
1276         if (val) free(val);
1277
1278         return pred;
1279 }
1280
1281 static char* searchWriteSimplePredicate ( const char* class, osrfHash* field,
1282         const char* left, const char* orig_op, const char* right ) {
1283
1284         char* val = NULL;
1285         char* op = NULL;
1286         if (right == NULL) {
1287                 val = strdup("NULL");
1288
1289                 if (strcmp( orig_op, "=" ))
1290                         op = strdup("IS NOT");
1291                 else
1292                         op = strdup("IS");
1293
1294         } else if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1295                 val = strdup(right);
1296                 op = strdup(orig_op);
1297
1298         } else {
1299                 val = strdup(right);
1300                 if ( !dbi_conn_quote_string(dbhandle, &val) ) {
1301                         osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, val);
1302                         free(val);
1303                         return NULL;
1304                 }
1305                 op = strdup(orig_op);
1306         }
1307
1308         growing_buffer* sql_buf = buffer_init(16);
1309         buffer_fadd( sql_buf, "\"%s\".%s %s %s", class, left, op, val );
1310         free(val);
1311         free(op);
1312
1313         return buffer_release(sql_buf);
1314 }
1315
1316 static char* searchBETWEENPredicate (const char* class, osrfHash* field, jsonObject* node) {
1317
1318         char* x_string;
1319         char* y_string;
1320
1321         if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1322                 x_string = jsonNumberToDBString(field, jsonObjectGetIndex(node,0));
1323                 y_string = jsonNumberToDBString(field, jsonObjectGetIndex(node,1));
1324
1325         } else {
1326                 x_string = jsonObjectToSimpleString(jsonObjectGetIndex(node,0));
1327                 y_string = jsonObjectToSimpleString(jsonObjectGetIndex(node,1));
1328                 if ( !(dbi_conn_quote_string(dbhandle, &x_string) && dbi_conn_quote_string(dbhandle, &y_string)) ) {
1329                         osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key strings [%s] and [%s]", MODULENAME, x_string, y_string);
1330                         free(x_string);
1331                         free(y_string);
1332                         return NULL;
1333                 }
1334         }
1335
1336         growing_buffer* sql_buf = buffer_init(32);
1337         buffer_fadd( sql_buf, "%s BETWEEN %s AND %s", osrfHashGet(field, "name"), x_string, y_string );
1338         free(x_string);
1339         free(y_string);
1340
1341         return buffer_release(sql_buf);
1342 }
1343
1344 static char* searchPredicate ( const char* class, osrfHash* field, jsonObject* node ) {
1345
1346         char* pred = NULL;
1347         if (node->type == JSON_ARRAY) { // equality IN search
1348                 pred = searchINPredicate( class, field, node, NULL );
1349         } else if (node->type == JSON_HASH) { // non-equality search
1350                 jsonObjectNode* pred_node;
1351                 jsonObjectIterator* pred_itr = jsonNewObjectIterator( node );
1352                 while ( (pred_node = jsonObjectIteratorNext( pred_itr )) ) {
1353                         if ( !(strcasecmp( pred_node->key,"between" )) )
1354                                 pred = searchBETWEENPredicate( class, field, pred_node->item );
1355                         else if ( !(strcasecmp( pred_node->key,"in" )) || !(strcasecmp( pred_node->key,"not in" )) )
1356                                 pred = searchINPredicate( class, field, pred_node->item, pred_node->key );
1357                         else if ( pred_node->item->type == JSON_ARRAY )
1358                                 pred = searchFunctionPredicate( class, field, pred_node );
1359                         else if ( pred_node->item->type == JSON_HASH )
1360                                 pred = searchFieldTransformPredicate( class, field, pred_node );
1361                         else
1362                                 pred = searchSimplePredicate( pred_node->key, class, field, pred_node->item );
1363
1364                         break;
1365                 }
1366         jsonObjectIteratorFree(pred_itr);
1367         } else if (node->type == JSON_NULL) { // IS NULL search
1368                 growing_buffer* _p = buffer_init(64);
1369                 buffer_fadd(
1370                         _p,
1371                         "\"%s\".%s IS NULL",
1372                         class,
1373                         osrfHashGet(field, "name")
1374                 );
1375                 pred = buffer_release(_p);
1376         } else { // equality search
1377                 pred = searchSimplePredicate( "=", class, field, node );
1378         }
1379
1380         return pred;
1381
1382 }
1383
1384
1385 /*
1386
1387 join : {
1388         acn : {
1389                 field : record,
1390                 fkey : id
1391                 type : left
1392                 filter_op : or
1393                 filter : { ... },
1394                 join : {
1395                         acp : {
1396                                 field : call_number,
1397                                 fkey : id,
1398                                 filter : { ... },
1399                         },
1400                 },
1401         },
1402         mrd : {
1403                 field : record,
1404                 type : inner
1405                 fkey : id,
1406                 filter : { ... },
1407         }
1408 }
1409
1410 */
1411
1412 static char* searchJOIN ( const jsonObject* join_hash, osrfHash* leftmeta ) {
1413
1414         const jsonObject* working_hash;
1415         jsonObject* freeable_hash = NULL;
1416
1417         if (join_hash->type == JSON_STRING) {
1418                 // create a wrapper around a copy of the original
1419                 char* _tmp = jsonObjectToSimpleString( join_hash );
1420                 freeable_hash = jsonParseString("{}");
1421                 jsonObjectSetKey(freeable_hash, _tmp, NULL);
1422                 free(_tmp);
1423                 working_hash = freeable_hash;
1424         }
1425         else
1426                 working_hash = join_hash;
1427
1428         growing_buffer* join_buf = buffer_init(128);
1429         char* leftclass = osrfHashGet(leftmeta, "classname");
1430
1431         jsonObjectNode* snode = NULL;
1432         jsonObjectIterator* search_itr = jsonNewObjectIterator( working_hash );
1433         if(freeable_hash)
1434                 jsonObjectFree(freeable_hash);
1435
1436         while ( (snode = jsonObjectIteratorNext( search_itr )) ) {
1437                 osrfHash* idlClass = osrfHashGet( oilsIDL(), snode->key );
1438
1439                 char* class = osrfHashGet(idlClass, "classname");
1440
1441                 char* fkey = jsonObjectToSimpleString( jsonObjectGetKeyConst( snode->item, "fkey" ) );
1442                 char* field = jsonObjectToSimpleString( jsonObjectGetKeyConst( snode->item, "field" ) );
1443
1444                 if (field && !fkey) {
1445                         fkey = (char*)oilsIDLFindPath("/%s/links/%s/key", class, field);
1446                         if (!fkey) {
1447                                 osrfLogError(
1448                                         OSRF_LOG_MARK,
1449                                         "%s: JOIN failed.  No link defined from %s.%s to %s",
1450                                         MODULENAME,
1451                                         class,
1452                                         field,
1453                                         leftclass
1454                                 );
1455                                 buffer_free(join_buf);
1456                                 free(field);
1457                                 return NULL;
1458                         }
1459                         fkey = strdup( fkey );
1460
1461                 } else if (!field && fkey) {
1462                         field = (char*)oilsIDLFindPath("/%s/links/%s/key", leftclass, fkey );
1463                         if (!field) {
1464                                 osrfLogError(
1465                                         OSRF_LOG_MARK,
1466                                         "%s: JOIN failed.  No link defined from %s.%s to %s",
1467                                         MODULENAME,
1468                                         leftclass,
1469                                         fkey,
1470                                         class
1471                                 );
1472                                 buffer_free(join_buf);
1473                                 free(fkey);
1474                                 return NULL;
1475                         }
1476                         field = strdup( field );
1477
1478                 } else if (!field && !fkey) {
1479                         osrfHash* _links = oilsIDLFindPath("/%s/links", leftclass);
1480
1481                         int i = 0;
1482                         osrfStringArray* keys = osrfHashKeys( _links );
1483                         while ( (fkey = osrfStringArrayGetString(keys, i++)) ) {
1484                                 fkey = strdup(osrfStringArrayGetString(keys, i++));
1485                                 if ( !strcmp( (char*)oilsIDLFindPath("/%s/links/%s/class", leftclass, fkey), class) ) {
1486                                         field = strdup( (char*)oilsIDLFindPath("/%s/links/%s/key", leftclass, fkey) );
1487                                         break;
1488                                 } else {
1489                                         free(fkey);
1490                                 }
1491                         }
1492                         osrfStringArrayFree(keys);
1493
1494                         if (!field && !fkey) {
1495                                 _links = oilsIDLFindPath("/%s/links", class);
1496
1497                                 i = 0;
1498                                 keys = osrfHashKeys( _links );
1499                                 while ( (field = osrfStringArrayGetString(keys, i++)) ) {
1500                                         field = strdup(osrfStringArrayGetString(keys, i++));
1501                                         if ( !strcmp( (char*)oilsIDLFindPath("/%s/links/%s/class", class, field), class) ) {
1502                                                 fkey = strdup( (char*)oilsIDLFindPath("/%s/links/%s/key", class, field) );
1503                                                 break;
1504                                         } else {
1505                                                 free(field);
1506                                         }
1507                                 }
1508                                 osrfStringArrayFree(keys);
1509                         }
1510
1511                         if (!field && !fkey) {
1512                                 osrfLogError(
1513                                         OSRF_LOG_MARK,
1514                                         "%s: JOIN failed.  No link defined between %s and %s",
1515                                         MODULENAME,
1516                                         leftclass,
1517                                         class
1518                                 );
1519                                 buffer_free(join_buf);
1520                                 return NULL;
1521                         }
1522
1523                 }
1524
1525                 char* type = jsonObjectToSimpleString( jsonObjectGetKeyConst( snode->item, "type" ) );
1526                 if (type) {
1527                         if ( !strcasecmp(type,"left") ) {
1528                                 buffer_add(join_buf, " LEFT JOIN");
1529                         } else if ( !strcasecmp(type,"right") ) {
1530                                 buffer_add(join_buf, " RIGHT JOIN");
1531                         } else if ( !strcasecmp(type,"full") ) {
1532                                 buffer_add(join_buf, " FULL JOIN");
1533                         } else {
1534                                 buffer_add(join_buf, " INNER JOIN");
1535                         }
1536                 } else {
1537                         buffer_add(join_buf, " INNER JOIN");
1538                 }
1539                 free(type);
1540
1541                 char* table = getSourceDefinition(idlClass);
1542                 buffer_fadd(join_buf, " %s AS \"%s\" ON ( \"%s\".%s = \"%s\".%s", table, class, class, field, leftclass, fkey);
1543                 free(table);
1544
1545                 const jsonObject* filter = jsonObjectGetKeyConst( snode->item, "filter" );
1546                 if (filter) {
1547                         char* filter_op = jsonObjectToSimpleString( jsonObjectGetKeyConst( snode->item, "filter_op" ) );
1548                         if (filter_op) {
1549                                 if (!strcasecmp("or",filter_op)) {
1550                                         buffer_add( join_buf, " OR " );
1551                                 } else {
1552                                         buffer_add( join_buf, " AND " );
1553                                 }
1554                         } else {
1555                                 buffer_add( join_buf, " AND " );
1556                         }
1557
1558                         char* jpred = searchWHERE( filter, idlClass, AND_OP_JOIN );
1559                         buffer_fadd( join_buf, " %s", jpred );
1560                         free(jpred);
1561                         free(filter_op);
1562                 }
1563
1564                 buffer_add(join_buf, " ) ");
1565
1566                 const jsonObject* join_filter = jsonObjectGetKeyConst( snode->item, "join" );
1567                 if (join_filter) {
1568                         char* jpred = searchJOIN( join_filter, idlClass );
1569                         buffer_fadd( join_buf, " %s", jpred );
1570                         free(jpred);
1571                 }
1572
1573                 free(fkey);
1574                 free(field);
1575         }
1576
1577     jsonObjectIteratorFree(search_itr);
1578
1579         return buffer_release(join_buf);
1580 }
1581
1582 /*
1583
1584 { +class : { -or|-and : { field : { op : value }, ... } ... }, ... }
1585 { +class : { -or|-and : [ { field : { op : value }, ... }, ...] ... }, ... }
1586 [ { +class : { -or|-and : [ { field : { op : value }, ... }, ...] ... }, ... }, ... ]
1587
1588 */
1589 static char* searchWHERE ( const jsonObject* search_hash, osrfHash* meta, int opjoin_type ) {
1590
1591         growing_buffer* sql_buf = buffer_init(128);
1592
1593         jsonObjectNode* node = NULL;
1594
1595     int first = 1;
1596     if ( search_hash->type == JSON_ARRAY ) {
1597         jsonObjectIterator* search_itr = jsonNewObjectIterator( search_hash );
1598         while ( (node = jsonObjectIteratorNext( search_itr )) ) {
1599             if (first) {
1600                 first = 0;
1601             } else {
1602                 if (opjoin_type == OR_OP_JOIN) buffer_add(sql_buf, " OR ");
1603                 else buffer_add(sql_buf, " AND ");
1604             }
1605
1606             char* subpred = searchWHERE( node->item, meta, opjoin_type );
1607             buffer_fadd(sql_buf, "( %s )", subpred);
1608             free(subpred);
1609         }
1610         jsonObjectIteratorFree(search_itr);
1611
1612     } else if ( search_hash->type == JSON_HASH ) {
1613         jsonObjectIterator* search_itr = jsonNewObjectIterator( search_hash );
1614         while ( (node = jsonObjectIteratorNext( search_itr )) ) {
1615
1616             if (first) {
1617                 first = 0;
1618             } else {
1619                 if (opjoin_type == OR_OP_JOIN) buffer_add(sql_buf, " OR ");
1620                 else buffer_add(sql_buf, " AND ");
1621             }
1622
1623             if ( !strncmp("+",node->key,1) ) {
1624                 if ( node->item->type == JSON_STRING ) {
1625                     char* subpred = jsonObjectToSimpleString( node->item );
1626                     buffer_fadd(sql_buf, " \"%s\".%s ", node->key + 1, subpred);
1627                     free(subpred);
1628                 } else {
1629                     char* subpred = searchWHERE( node->item, osrfHashGet( oilsIDL(), node->key + 1 ), AND_OP_JOIN );
1630                     buffer_fadd(sql_buf, "( %s )", subpred);
1631                     free(subpred);
1632                 }
1633             } else if ( !strcasecmp("-or",node->key) ) {
1634                 char* subpred = searchWHERE( node->item, meta, OR_OP_JOIN );
1635                 buffer_fadd(sql_buf, "( %s )", subpred);
1636                 free(subpred);
1637             } else if ( !strcasecmp("-and",node->key) ) {
1638                 char* subpred = searchWHERE( node->item, meta, AND_OP_JOIN );
1639                 buffer_fadd(sql_buf, "( %s )", subpred);
1640                 free(subpred);
1641             } else {
1642
1643                 char* class = osrfHashGet(meta, "classname");
1644                 osrfHash* fields = osrfHashGet(meta, "fields");
1645                 osrfHash* field = osrfHashGet( fields, node->key );
1646
1647
1648                 if (!field) {
1649                     char* table = getSourceDefinition(meta);
1650                     osrfLogError(
1651                         OSRF_LOG_MARK,
1652                         "%s: Attempt to reference non-existant column %s on %s (%s)",
1653                         MODULENAME,
1654                         node->key,
1655                         table,
1656                         class
1657                     );
1658                     buffer_free(sql_buf);
1659                     free(table);
1660                     return NULL;
1661                 }
1662
1663                 char* subpred = searchPredicate( class, field, node->item );
1664                 buffer_add( sql_buf, subpred );
1665                 free(subpred);
1666             }
1667         }
1668             jsonObjectIteratorFree(search_itr);
1669
1670     } else {
1671         // ERROR ... only hash and array allowed at this level
1672         char* predicate_string = jsonObjectToJSON( search_hash );
1673         osrfLogError(
1674             OSRF_LOG_MARK,
1675             "%s: Invalid predicate structure: %s",
1676             MODULENAME,
1677             predicate_string
1678         );
1679         buffer_free(sql_buf);
1680         free(predicate_string);
1681         return NULL;
1682     }
1683
1684
1685         return buffer_release(sql_buf);
1686 }
1687
1688 static char* SELECT (
1689                 /* method context */ osrfMethodContext* ctx,
1690
1691                 /* SELECT   */ jsonObject* selhash,
1692                 /* FROM     */ jsonObject* join_hash,
1693                 /* WHERE    */ jsonObject* search_hash,
1694                 /* HAVING   */ jsonObject* having_hash,
1695                 /* ORDER BY */ jsonObject* order_hash,
1696                 /* LIMIT    */ jsonObject* limit,
1697                 /* OFFSET   */ jsonObject* offset,
1698                 /* flags    */ int flags
1699 ) {
1700         const char* locale = osrf_message_get_last_locale();
1701
1702         // in case we don't get a select list
1703         jsonObject* defaultselhash = NULL;
1704
1705         // general tmp objects
1706         const jsonObject* tmp_const;
1707         jsonObject* _tmp = NULL;
1708         jsonObjectNode* selclass = NULL;
1709         jsonObjectNode* selfield = NULL;
1710         jsonObjectNode* snode = NULL;
1711         jsonObjectNode* onode = NULL;
1712         jsonObject* found = NULL;
1713
1714         char* string = NULL;
1715         int first = 1;
1716         int gfirst = 1;
1717         //int hfirst = 1;
1718
1719         // the core search class
1720         char* core_class = NULL;
1721
1722         // metadata about the core search class
1723         osrfHash* core_meta = NULL;
1724         osrfHash* core_fields = NULL;
1725         osrfHash* idlClass = NULL;
1726
1727         // punt if there's no core class
1728         if (!join_hash || ( join_hash->type == JSON_HASH && !join_hash->size ))
1729                 return NULL;
1730
1731         // get the core class -- the only key of the top level FROM clause, or a string
1732         if (join_hash->type == JSON_HASH) {
1733                 jsonObjectIterator* tmp_itr = jsonNewObjectIterator( join_hash );
1734                 snode = jsonObjectIteratorNext( tmp_itr );
1735
1736                 core_class = strdup( snode->key );
1737                 join_hash = snode->item;
1738
1739                 jsonObjectIteratorFree( tmp_itr );
1740                 snode = NULL;
1741
1742         } else if (join_hash->type == JSON_STRING) {
1743                 core_class = jsonObjectToSimpleString( join_hash );
1744                 join_hash = NULL;
1745         }
1746
1747         // punt if we don't know about the core class
1748         if (!(core_meta = osrfHashGet( oilsIDL(), core_class ))) {
1749                 free(core_class);
1750                 return NULL;
1751         }
1752
1753         // if the select list is empty, or the core class field list is '*',
1754         // build the default select list ...
1755         if (!selhash) {
1756                 selhash = defaultselhash = jsonParseString( "{}" );
1757                 jsonObjectSetKey( selhash, core_class, jsonParseString( "[]" ) );
1758         } else if ( (tmp_const = jsonObjectGetKeyConst( selhash, core_class )) && tmp_const->type == JSON_STRING ) {
1759                 char* _x = jsonObjectToSimpleString( tmp_const );
1760                 if (!strncmp( "*", _x, 1 )) {
1761                         jsonObjectRemoveKey( selhash, core_class );
1762                         jsonObjectSetKey( selhash, core_class, jsonParseString( "[]" ) );
1763                 }
1764                 free(_x);
1765         }
1766
1767         // the query buffer
1768         growing_buffer* sql_buf = buffer_init(128);
1769
1770         // temp buffer for the SELECT list
1771         growing_buffer* select_buf = buffer_init(128);
1772         growing_buffer* order_buf = buffer_init(128);
1773         growing_buffer* group_buf = buffer_init(128);
1774         growing_buffer* having_buf = buffer_init(128);
1775
1776         core_fields = osrfHashGet(core_meta, "fields");
1777
1778         // ... and if we /are/ building the default list, do that
1779         if ( (_tmp = jsonObjectGetKey(selhash,core_class)) && !_tmp->size ) {
1780
1781                 int i = 0;
1782                 char* field;
1783
1784                 osrfStringArray* keys = osrfHashKeys( core_fields );
1785                 while ( (field = osrfStringArrayGetString(keys, i++)) ) {
1786                         if ( strncasecmp( "true", osrfHashGet( osrfHashGet( core_fields, field ), "virtual" ), 4 ) )
1787                                 jsonObjectPush( _tmp, jsonNewObject( field ) );
1788                 }
1789                 osrfStringArrayFree(keys);
1790         }
1791
1792         // Now we build the actual select list
1793         int sel_pos = 1;
1794         jsonObject* is_agg = jsonObjectFindPath(selhash, "//aggregate");
1795         first = 1;
1796         gfirst = 1;
1797         jsonObjectIterator* selclass_itr = jsonNewObjectIterator( selhash );
1798         while ( (selclass = jsonObjectIteratorNext( selclass_itr )) ) {
1799
1800                 // round trip through the idl, just to be safe
1801                 idlClass = osrfHashGet( oilsIDL(), selclass->key );
1802                 if (!idlClass) continue;
1803                 char* cname = osrfHashGet(idlClass, "classname");
1804
1805                 // make sure the target relation is in the join tree
1806                 if (strcmp(core_class,cname)) {
1807                         if (!join_hash) continue;
1808
1809                         if (join_hash->type == JSON_STRING) {
1810                                 string = jsonObjectToSimpleString(join_hash);
1811                                 found = strcmp(string,cname) ? NULL : jsonParseString("{\"1\":\"1\"}");
1812                                 free(string);
1813                         } else {
1814                                 found = jsonObjectFindPath(join_hash, "//%s", cname);
1815                         }
1816
1817                         if (!found->size) {
1818                                 jsonObjectFree(found);
1819                                 continue;
1820                         }
1821
1822                         jsonObjectFree(found);
1823                 }
1824
1825                 // stitch together the column list ...
1826                 jsonObjectIterator* select_itr = jsonNewObjectIterator( selclass->item );
1827                 while ( (selfield = jsonObjectIteratorNext( select_itr )) ) {
1828
1829                         char* __column = NULL;
1830                         char* __alias = NULL;
1831
1832                         // ... if it's a sstring, just toss it on the pile
1833                         if (selfield->item->type == JSON_STRING) {
1834
1835                                 // again, just to be safe
1836                                 char* _requested_col = jsonObjectToSimpleString(selfield->item);
1837                                 osrfHash* field = osrfHashGet( osrfHashGet( idlClass, "fields" ), _requested_col );
1838                                 free(_requested_col);
1839
1840                                 if (!field) continue;
1841                                 __column = strdup(osrfHashGet(field, "name"));
1842
1843                                 if (first) {
1844                                         first = 0;
1845                                 } else {
1846                                         buffer_add(select_buf, ",");
1847                                 }
1848
1849                 if (locale) {
1850                         char* i18n = osrfHashGet(field, "i18n");
1851                                 if (flags & DISABLE_I18N)
1852                         i18n = NULL;
1853
1854                         if ( i18n && !strncasecmp("true", i18n, 4)) {
1855                             char* pkey = osrfHashGet(idlClass, "primarykey");
1856                             char* tname = osrfHashGet(idlClass, "tablename");
1857
1858                         buffer_fadd(select_buf, " oils_i18n_xlate('%s', '%s', '%s', \"%s\".%s::TEXT, '%s') AS \"%s\"", tname, __column, pkey, cname, pkey, locale, __column);
1859                     } else {
1860                                         buffer_fadd(select_buf, " \"%s\".%s AS \"%s\"", cname, __column, __column);
1861                     }
1862                 } else {
1863                                     buffer_fadd(select_buf, " \"%s\".%s AS \"%s\"", cname, __column, __column);
1864                 }
1865
1866                         // ... but it could be an object, in which case we check for a Field Transform
1867                         } else {
1868
1869                                 __column = jsonObjectToSimpleString( jsonObjectGetKeyConst( selfield->item, "column" ) );
1870
1871                                 // again, just to be safe
1872                                 osrfHash* field = osrfHashGet( osrfHashGet( idlClass, "fields" ), __column );
1873                                 if (!field) continue;
1874                                 const char* fname = osrfHashGet(field, "name");
1875
1876                                 if (first) {
1877                                         first = 0;
1878                                 } else {
1879                                         buffer_add(select_buf, ",");
1880                                 }
1881
1882                                 if ((tmp_const = jsonObjectGetKeyConst( selfield->item, "alias" ))) {
1883                                         __alias = jsonObjectToSimpleString( tmp_const );
1884                                 } else {
1885                                         __alias = strdup(__column);
1886                                 }
1887
1888                                 if (jsonObjectGetKeyConst( selfield->item, "transform" )) {
1889                                         free(__column);
1890                                         __column = searchFieldTransform(cname, field, selfield->item);
1891                                         buffer_fadd(select_buf, " %s AS \"%s\"", __column, __alias);
1892                                 } else {
1893                     if (locale) {
1894                                 char* i18n = osrfHashGet(field, "i18n");
1895                                     if (flags & DISABLE_I18N)
1896                             i18n = NULL;
1897
1898                                 if ( i18n && !strncasecmp("true", i18n, 4)) {
1899                                 char* pkey = osrfHashGet(idlClass, "primarykey");
1900                                 char* tname = osrfHashGet(idlClass, "tablename");
1901
1902                             buffer_fadd(select_buf, " oils_i18n_xlate('%s', '%s', '%s', \"%s\".%s::TEXT, '%s') AS \"%s\"", tname, fname, pkey, cname, pkey, locale, __alias);
1903                         } else {
1904                                                 buffer_fadd(select_buf, " \"%s\".%s AS \"%s\"", cname, fname, __alias);
1905                         }
1906                     } else {
1907                                             buffer_fadd(select_buf, " \"%s\".%s AS \"%s\"", cname, fname, __alias);
1908                     }
1909                                 }
1910                         }
1911
1912                         if (is_agg->size || (flags & SELECT_DISTINCT)) {
1913
1914                                 if (!jsonBoolIsTrue( jsonObjectGetKey( selfield->item, "aggregate" ) )) {
1915                                         if (gfirst) {
1916                                                 gfirst = 0;
1917                                         } else {
1918                                                 buffer_add(group_buf, ",");
1919                                         }
1920
1921                                         buffer_fadd(group_buf, " %d", sel_pos);
1922                                 /*
1923                                 } else if (is_agg = jsonObjectGetKey( selfield->item, "having" )) {
1924                                         if (gfirst) {
1925                                                 gfirst = 0;
1926                                         } else {
1927                                                 buffer_add(group_buf, ",");
1928                                         }
1929
1930                                         __column = searchFieldTransform(cname, field, selfield->item);
1931                                         buffer_fadd(group_buf, " %s", __column);
1932                                         __column = searchFieldTransform(cname, field, selfield->item);
1933                                 */
1934                                 }
1935                         }
1936
1937                         if (__column) free(__column);
1938                         if (__alias) free(__alias);
1939
1940                         sel_pos++;
1941                 }
1942
1943         // jsonObjectIteratorFree(select_itr);
1944         }
1945
1946     // jsonObjectIteratorFree(selclass_itr);
1947
1948         if (is_agg) jsonObjectFree(is_agg);
1949
1950         char* col_list = buffer_release(select_buf);
1951         char* table = getSourceDefinition(core_meta);
1952
1953         // Put it all together
1954         buffer_fadd(sql_buf, "SELECT %s FROM %s AS \"%s\" ", col_list, table, core_class );
1955         free(col_list);
1956         free(table);
1957
1958         // Now, walk the join tree and add that clause
1959         if ( join_hash ) {
1960                 char* join_clause = searchJOIN( join_hash, core_meta );
1961                 buffer_add(sql_buf, join_clause);
1962                 free(join_clause);
1963         }
1964
1965         if ( search_hash ) {
1966                 buffer_add(sql_buf, " WHERE ");
1967
1968                 // and it's on the the WHERE clause
1969                 char* pred = searchWHERE( search_hash, core_meta, AND_OP_JOIN );
1970
1971                 if (!pred) {
1972                         osrfAppSessionStatus(
1973                                 ctx->session,
1974                                 OSRF_STATUS_INTERNALSERVERERROR,
1975                                 "osrfMethodException",
1976                                 ctx->request,
1977                                 "Severe query error in WHERE predicate -- see error log for more details"
1978                         );
1979                         free(core_class);
1980                         buffer_free(having_buf);
1981                         buffer_free(group_buf);
1982                         buffer_free(order_buf);
1983                         buffer_free(sql_buf);
1984                         if (defaultselhash) jsonObjectFree(defaultselhash);
1985                         return NULL;
1986                 } else {
1987                         buffer_add(sql_buf, pred);
1988                         free(pred);
1989                 }
1990     }
1991
1992         if ( having_hash ) {
1993                 buffer_add(sql_buf, " HAVING ");
1994
1995                 // and it's on the the WHERE clause
1996                 char* pred = searchWHERE( having_hash, core_meta, AND_OP_JOIN );
1997
1998                 if (!pred) {
1999                         osrfAppSessionStatus(
2000                                 ctx->session,
2001                                 OSRF_STATUS_INTERNALSERVERERROR,
2002                                 "osrfMethodException",
2003                                 ctx->request,
2004                                 "Severe query error in HAVING predicate -- see error log for more details"
2005                         );
2006                         free(core_class);
2007                         buffer_free(having_buf);
2008                         buffer_free(group_buf);
2009                         buffer_free(order_buf);
2010                         buffer_free(sql_buf);
2011                         if (defaultselhash) jsonObjectFree(defaultselhash);
2012                         return NULL;
2013                 } else {
2014                         buffer_add(sql_buf, pred);
2015                         free(pred);
2016                 }
2017         }
2018
2019         first = 1;
2020         jsonObjectIterator* class_itr = jsonNewObjectIterator( order_hash );
2021         while ( (snode = jsonObjectIteratorNext( class_itr )) ) {
2022
2023                 if (!jsonObjectGetKeyConst(selhash,snode->key))
2024                         continue;
2025
2026                 if ( snode->item->type == JSON_HASH ) {
2027
2028                     jsonObjectIterator* order_itr = jsonNewObjectIterator( snode->item );
2029                         while ( (onode = jsonObjectIteratorNext( order_itr )) ) {
2030
2031                                 if (!oilsIDLFindPath( "/%s/fields/%s", snode->key, onode->key ))
2032                                         continue;
2033
2034                                 char* direction = NULL;
2035                                 if ( onode->item->type == JSON_HASH ) {
2036                                         if ( jsonObjectGetKeyConst( onode->item, "transform" ) ) {
2037                                                 string = searchFieldTransform(
2038                                                         snode->key,
2039                                                         oilsIDLFindPath( "/%s/fields/%s", snode->key, onode->key ),
2040                                                         onode->item
2041                                                 );
2042                                         } else {
2043                                                 growing_buffer* field_buf = buffer_init(16);
2044                                                 buffer_fadd(field_buf, "\"%s\".%s", snode->key, onode->key);
2045                                                 string = buffer_release(field_buf);
2046                                         }
2047
2048                                         if ( (tmp_const = jsonObjectGetKeyConst( onode->item, "direction" )) ) {
2049                                                 direction = jsonObjectToSimpleString(tmp_const);
2050                                                 if (!strncasecmp(direction, "d", 1)) {
2051                                                         free(direction);
2052                                                         direction = " DESC";
2053                                                 } else {
2054                                                         free(direction);
2055                                                         direction = " ASC";
2056                                                 }
2057                                         }
2058
2059                                 } else {
2060                                         string = strdup(onode->key);
2061                                         direction = jsonObjectToSimpleString(onode->item);
2062                                         if (!strncasecmp(direction, "d", 1)) {
2063                                                 free(direction);
2064                                                 direction = " DESC";
2065                                         } else {
2066                                                 free(direction);
2067                                                 direction = " ASC";
2068                                         }
2069                                 }
2070
2071                                 if (first) {
2072                                         first = 0;
2073                                 } else {
2074                                         buffer_add(order_buf, ", ");
2075                                 }
2076
2077                                 buffer_add(order_buf, string);
2078                                 free(string);
2079
2080                                 if (direction) {
2081                                         buffer_add(order_buf, direction);
2082                                 }
2083
2084                         }
2085             // jsonObjectIteratorFree(order_itr);
2086
2087                 } else if ( snode->item->type == JSON_ARRAY ) {
2088
2089                     jsonObjectIterator* order_itr = jsonNewObjectIterator( snode->item );
2090                         while ( (onode = jsonObjectIteratorNext( order_itr )) ) {
2091
2092                                 char* _f = jsonObjectToSimpleString( onode->item );
2093
2094                                 if (!oilsIDLFindPath( "/%s/fields/%s", snode->key, _f))
2095                                         continue;
2096
2097                                 if (first) {
2098                                         first = 0;
2099                                 } else {
2100                                         buffer_add(order_buf, ", ");
2101                                 }
2102
2103                                 buffer_add(order_buf, _f);
2104                                 free(_f);
2105
2106                         }
2107             // jsonObjectIteratorFree(order_itr);
2108
2109
2110                 // IT'S THE OOOOOOOOOOOLD STYLE!
2111                 } else {
2112                         osrfLogError(OSRF_LOG_MARK, "%s: Possible SQL injection attempt; direct order by is not allowed", MODULENAME);
2113                         osrfAppSessionStatus(
2114                                 ctx->session,
2115                                 OSRF_STATUS_INTERNALSERVERERROR,
2116                                 "osrfMethodException",
2117                                 ctx->request,
2118                                 "Severe query error -- see error log for more details"
2119                         );
2120
2121                         free(core_class);
2122                         buffer_free(having_buf);
2123                         buffer_free(group_buf);
2124                         buffer_free(order_buf);
2125                         buffer_free(sql_buf);
2126                         if (defaultselhash) jsonObjectFree(defaultselhash);
2127                         return NULL;
2128                 }
2129
2130         }
2131
2132     // jsonObjectIteratorFree(class_itr);
2133
2134         string = buffer_release(group_buf);
2135
2136         if (strlen(string)) {
2137                 buffer_fadd(
2138                         sql_buf,
2139                         " GROUP BY %s",
2140                         string
2141                 );
2142         }
2143
2144         free(string);
2145
2146         string = buffer_release(having_buf);
2147
2148         if (strlen(string)) {
2149                 buffer_fadd(
2150                         sql_buf,
2151                         " HAVING %s",
2152                         string
2153                 );
2154         }
2155
2156         free(string);
2157
2158         string = buffer_release(order_buf);
2159
2160         if (strlen(string)) {
2161                 buffer_fadd(
2162                         sql_buf,
2163                         " ORDER BY %s",
2164                         string
2165                 );
2166         }
2167
2168         free(string);
2169
2170         if ( limit ){
2171                 string = jsonObjectToSimpleString(limit);
2172                 buffer_fadd( sql_buf, " LIMIT %d", atoi(string) );
2173                 free(string);
2174         }
2175
2176         if (offset) {
2177                 string = jsonObjectToSimpleString(offset);
2178                 buffer_fadd( sql_buf, " OFFSET %d", atoi(string) );
2179                 free(string);
2180         }
2181
2182         buffer_add(sql_buf, ";");
2183
2184         free(core_class);
2185         if (defaultselhash) jsonObjectFree(defaultselhash);
2186
2187         return buffer_release(sql_buf);
2188
2189 }
2190
2191 static char* buildSELECT ( jsonObject* search_hash, jsonObject* order_hash, osrfHash* meta, osrfMethodContext* ctx ) {
2192
2193         const char* locale = osrf_message_get_last_locale();
2194
2195         osrfHash* fields = osrfHashGet(meta, "fields");
2196         char* core_class = osrfHashGet(meta, "classname");
2197
2198         const jsonObject* join_hash = jsonObjectGetKeyConst( order_hash, "join" );
2199
2200         jsonObjectNode* node = NULL;
2201         jsonObjectNode* snode = NULL;
2202         jsonObjectNode* onode = NULL;
2203         const jsonObject* _tmp = NULL;
2204         jsonObject* selhash = NULL;
2205         jsonObject* defaultselhash = NULL;
2206
2207         growing_buffer* sql_buf = buffer_init(128);
2208         growing_buffer* select_buf = buffer_init(128);
2209
2210         if ( !(selhash = jsonObjectGetKey( order_hash, "select" )) ) {
2211                 defaultselhash = jsonParseString( "{}" );
2212                 selhash = defaultselhash;
2213         }
2214
2215         if ( !jsonObjectGetKeyConst(selhash,core_class) ) {
2216                 jsonObjectSetKey( selhash, core_class, jsonParseString( "[]" ) );
2217                 jsonObject* flist = jsonObjectGetKey( selhash, core_class );
2218
2219                 int i = 0;
2220                 char* field;
2221
2222                 osrfStringArray* keys = osrfHashKeys( fields );
2223                 while ( (field = osrfStringArrayGetString(keys, i++)) ) {
2224                         if ( strcasecmp( "true", osrfHashGet( osrfHashGet( fields, field ), "virtual" ) ) )
2225                                 jsonObjectPush( flist, jsonNewObject( field ) );
2226                 }
2227                 osrfStringArrayFree(keys);
2228         }
2229
2230         int first = 1;
2231         jsonObjectIterator* class_itr = jsonNewObjectIterator( selhash );
2232         while ( (snode = jsonObjectIteratorNext( class_itr )) ) {
2233
2234                 osrfHash* idlClass = osrfHashGet( oilsIDL(), snode->key );
2235                 if (!idlClass) continue;
2236                 char* cname = osrfHashGet(idlClass, "classname");
2237
2238                 if (strcmp(core_class,snode->key)) {
2239                         if (!join_hash) continue;
2240
2241                         jsonObject* found =  jsonObjectFindPath(join_hash, "//%s", snode->key);
2242                         if (!found->size) {
2243                                 jsonObjectFree(found);
2244                                 continue;
2245                         }
2246
2247                         jsonObjectFree(found);
2248                 }
2249
2250                 jsonObjectIterator* select_itr = jsonNewObjectIterator( snode->item );
2251                 while ( (node = jsonObjectIteratorNext( select_itr )) ) {
2252                         char* item_str = jsonObjectToSimpleString(node->item);
2253                         osrfHash* field = osrfHashGet( osrfHashGet( idlClass, "fields" ), item_str );
2254                         free(item_str);
2255                         char* fname = osrfHashGet(field, "name");
2256
2257                         if (!field) continue;
2258
2259                         if (first) {
2260                                 first = 0;
2261                         } else {
2262                                 buffer_add(select_buf, ",");
2263                         }
2264
2265             if (locale) {
2266                         char* i18n = osrfHashGet(field, "i18n");
2267                     if (jsonBoolIsTrue(jsonObjectGetKey( order_hash, "no_i18n" )))
2268                     i18n = NULL;
2269
2270                         if ( i18n && !strncasecmp("true", i18n, 4)) {
2271                         char* pkey = osrfHashGet(idlClass, "primarykey");
2272                         char* tname = osrfHashGet(idlClass, "tablename");
2273
2274                     buffer_fadd(select_buf, " oils_i18n_xlate('%s', '%s', '%s', \"%s\".%s::TEXT, '%s') AS \"%s\"", tname, fname, pkey, cname, pkey, locale, fname);
2275                 } else {
2276                                 buffer_fadd(select_buf, " \"%s\".%s", cname, fname);
2277                 }
2278             } else {
2279                             buffer_fadd(select_buf, " \"%s\".%s", cname, fname);
2280             }
2281                 }
2282
2283         jsonObjectIteratorFree(select_itr);
2284         }
2285
2286     jsonObjectIteratorFree(class_itr);
2287
2288         char* col_list = buffer_release(select_buf);
2289         char* table = getSourceDefinition(meta);
2290
2291         buffer_fadd(sql_buf, "SELECT %s FROM %s AS \"%s\"", col_list, table, core_class );
2292         free(col_list);
2293         free(table);
2294
2295         if ( join_hash ) {
2296                 char* join_clause = searchJOIN( join_hash, meta );
2297                 buffer_fadd(sql_buf, " %s", join_clause);
2298                 free(join_clause);
2299         }
2300
2301         char* tmpsql = buffer_data(sql_buf);
2302         osrfLogDebug(OSRF_LOG_MARK, "%s pre-predicate SQL =  %s", MODULENAME, tmpsql);
2303         free(tmpsql);
2304
2305         buffer_add(sql_buf, " WHERE ");
2306
2307         char* pred = searchWHERE( search_hash, meta, AND_OP_JOIN );
2308         if (!pred) {
2309                 osrfAppSessionStatus(
2310                         ctx->session,
2311                         OSRF_STATUS_INTERNALSERVERERROR,
2312                                 "osrfMethodException",
2313                                 ctx->request,
2314                                 "Severe query error -- see error log for more details"
2315                         );
2316                 buffer_free(sql_buf);
2317                 return NULL;
2318         } else {
2319                 buffer_add(sql_buf, pred);
2320                 free(pred);
2321         }
2322
2323         if (order_hash) {
2324                 char* string = NULL;
2325                 if ( (_tmp = jsonObjectGetKeyConst( order_hash, "order_by" )) ){
2326
2327                         growing_buffer* order_buf = buffer_init(128);
2328
2329                         first = 1;
2330                         jsonObjectIterator* class_itr = jsonNewObjectIterator( _tmp );
2331                         while ( (snode = jsonObjectIteratorNext( class_itr )) ) {
2332
2333                                 if (!jsonObjectGetKeyConst(selhash,snode->key))
2334                                         continue;
2335
2336                                 if ( snode->item->type == JSON_HASH ) {
2337
2338                                         jsonObjectIterator* order_itr = jsonNewObjectIterator( snode->item );
2339                                         while ( (onode = jsonObjectIteratorNext( order_itr )) ) {
2340
2341                                                 if (!oilsIDLFindPath( "/%s/fields/%s", snode->key, onode->key ))
2342                                                         continue;
2343
2344                                                 char* direction = NULL;
2345                                                 if ( onode->item->type == JSON_HASH ) {
2346                                                         if ( jsonObjectGetKeyConst( onode->item, "transform" ) ) {
2347                                                                 string = searchFieldTransform(
2348                                                                         snode->key,
2349                                                                         oilsIDLFindPath( "/%s/fields/%s", snode->key, onode->key ),
2350                                                                         onode->item
2351                                                                 );
2352                                                         } else {
2353                                                                 growing_buffer* field_buf = buffer_init(16);
2354                                                                 buffer_fadd(field_buf, "\"%s\".%s", snode->key, onode->key);
2355                                                                 string = buffer_release(field_buf);
2356                                                         }
2357
2358                                                         if ( (_tmp = jsonObjectGetKeyConst( onode->item, "direction" )) ) {
2359                                                                 direction = jsonObjectToSimpleString(_tmp);
2360                                                                 if (!strncasecmp(direction, "d", 1)) {
2361                                                                         free(direction);
2362                                                                         direction = " DESC";
2363                                                                 } else {
2364                                                                         free(direction);
2365                                                                         direction = " ASC";
2366                                                                 }
2367                                                         }
2368
2369                                                 } else {
2370                                                         string = strdup(onode->key);
2371                                                         direction = jsonObjectToSimpleString(onode->item);
2372                                                         if (!strncasecmp(direction, "d", 1)) {
2373                                                                 free(direction);
2374                                                                 direction = " DESC";
2375                                                         } else {
2376                                                                 free(direction);
2377                                                                 direction = " ASC";
2378                                                         }
2379                                                 }
2380
2381                                                 if (first) {
2382                                                         first = 0;
2383                                                 } else {
2384                                                         buffer_add(order_buf, ", ");
2385                                                 }
2386
2387                                                 buffer_add(order_buf, string);
2388                                                 free(string);
2389
2390                                                 if (direction) {
2391                                                         buffer_add(order_buf, direction);
2392                                                 }
2393
2394                                         }
2395
2396                     jsonObjectIteratorFree(order_itr);
2397
2398                                 } else {
2399                                         string = jsonObjectToSimpleString(snode->item);
2400                                         buffer_add(order_buf, string);
2401                                         free(string);
2402                                         break;
2403                                 }
2404
2405                         }
2406
2407             jsonObjectIteratorFree(class_itr);
2408
2409                         string = buffer_release(order_buf);
2410
2411                         if (strlen(string)) {
2412                                 buffer_fadd(
2413                                         sql_buf,
2414                                         " ORDER BY %s",
2415                                         string
2416                                 );
2417                         }
2418
2419                         free(string);
2420                 }
2421
2422                 if ( (_tmp = jsonObjectGetKeyConst( order_hash, "limit" )) ){
2423                         string = jsonObjectToSimpleString(_tmp);
2424                         buffer_fadd(
2425                                 sql_buf,
2426                                 " LIMIT %d",
2427                                 atoi(string)
2428                         );
2429                         free(string);
2430                 }
2431
2432                 _tmp = jsonObjectGetKeyConst( order_hash, "offset" );
2433                 if (_tmp) {
2434                         string = jsonObjectToSimpleString(_tmp);
2435                         buffer_fadd(
2436                                 sql_buf,
2437                                 " OFFSET %d",
2438                                 atoi(string)
2439                         );
2440                         free(string);
2441                 }
2442         }
2443
2444         if (defaultselhash) jsonObjectFree(defaultselhash);
2445
2446         buffer_add(sql_buf, ";");
2447         return buffer_release(sql_buf);
2448 }
2449
2450 int doJSONSearch ( osrfMethodContext* ctx ) {
2451         OSRF_METHOD_VERIFY_CONTEXT(ctx);
2452         osrfLogDebug(OSRF_LOG_MARK, "Recieved query request");
2453
2454         int err = 0;
2455
2456         // XXX for now...
2457         dbhandle = writehandle;
2458
2459         jsonObject* hash = jsonObjectGetIndex(ctx->params, 0);
2460
2461     int flags = 0;
2462
2463         if (jsonBoolIsTrue(jsonObjectGetKey( hash, "distinct" )))
2464          flags |= SELECT_DISTINCT;
2465
2466         if ( ((int)jsonObjectGetNumber(jsonObjectGetKey( hash, "distinct" ))) == 1 ) // support 1/0 for perl's sake
2467          flags |= SELECT_DISTINCT;
2468
2469         if (jsonBoolIsTrue(jsonObjectGetKey( hash, "no_i18n" )))
2470          flags |= DISABLE_I18N;
2471
2472         if ( ((int)jsonObjectGetNumber(jsonObjectGetKey( hash, "no_i18n" ))) == 1 ) // support 1/0 for perl's sake
2473          flags |= DISABLE_I18N;
2474
2475         osrfLogDebug(OSRF_LOG_MARK, "Building SQL ...");
2476         char* sql = SELECT(
2477                         ctx,
2478                         jsonObjectGetKey( hash, "select" ),
2479                         jsonObjectGetKey( hash, "from" ),
2480                         jsonObjectGetKey( hash, "where" ),
2481                         jsonObjectGetKey( hash, "having" ),
2482                         jsonObjectGetKey( hash, "order_by" ),
2483                         jsonObjectGetKey( hash, "limit" ),
2484                         jsonObjectGetKey( hash, "offset" ),
2485                         flags
2486         );
2487
2488         if (!sql) {
2489                 err = -1;
2490                 return err;
2491         }
2492
2493         osrfLogDebug(OSRF_LOG_MARK, "%s SQL =  %s", MODULENAME, sql);
2494         dbi_result result = dbi_conn_query(dbhandle, sql);
2495
2496         if(result) {
2497                 osrfLogDebug(OSRF_LOG_MARK, "Query returned with no errors");
2498
2499                 if (dbi_result_first_row(result)) {
2500                         /* JSONify the result */
2501                         osrfLogDebug(OSRF_LOG_MARK, "Query returned at least one row");
2502
2503                         do {
2504                                 jsonObject* return_val = oilsMakeJSONFromResult( result );
2505                                 osrfAppRespond( ctx, return_val );
2506                 jsonObjectFree( return_val );
2507                         } while (dbi_result_next_row(result));
2508
2509                 } else {
2510                         osrfLogDebug(OSRF_LOG_MARK, "%s returned no results for query %s", MODULENAME, sql);
2511                 }
2512
2513                 osrfAppRespondComplete( ctx, NULL );
2514
2515                 /* clean up the query */
2516                 dbi_result_free(result);
2517
2518         } else {
2519                 err = -1;
2520                 osrfLogError(OSRF_LOG_MARK, "%s: Error with query [%s]", MODULENAME, sql);
2521                 osrfAppSessionStatus(
2522                         ctx->session,
2523                         OSRF_STATUS_INTERNALSERVERERROR,
2524                         "osrfMethodException",
2525                         ctx->request,
2526                         "Severe query error -- see error log for more details"
2527                 );
2528         }
2529
2530         free(sql);
2531         return err;
2532 }
2533
2534 static jsonObject* doFieldmapperSearch ( osrfMethodContext* ctx, osrfHash* meta,
2535                 const jsonObject* params, int* err ) {
2536
2537         // XXX for now...
2538         dbhandle = writehandle;
2539
2540         osrfHash* links = osrfHashGet(meta, "links");
2541         osrfHash* fields = osrfHashGet(meta, "fields");
2542         char* core_class = osrfHashGet(meta, "classname");
2543         char* pkey = osrfHashGet(meta, "primarykey");
2544
2545         const jsonObject* _tmp;
2546         jsonObject* obj;
2547         jsonObject* search_hash = jsonObjectGetIndex(params, 0);
2548         jsonObject* order_hash = jsonObjectGetIndex(params, 1);
2549
2550         char* sql = buildSELECT( search_hash, order_hash, meta, ctx );
2551         if (!sql) {
2552                 *err = -1;
2553                 return NULL;
2554         }
2555
2556         osrfLogDebug(OSRF_LOG_MARK, "%s SQL =  %s", MODULENAME, sql);
2557         dbi_result result = dbi_conn_query(dbhandle, sql);
2558
2559         jsonObject* res_list = jsonParseString("[]");
2560         if(result) {
2561                 osrfLogDebug(OSRF_LOG_MARK, "Query returned with no errors");
2562                 osrfHash* dedup = osrfNewHash();
2563
2564                 if (dbi_result_first_row(result)) {
2565                         /* JSONify the result */
2566                         osrfLogDebug(OSRF_LOG_MARK, "Query returned at least one row");
2567                         do {
2568                                 obj = oilsMakeFieldmapperFromResult( result, meta );
2569                                 int pkey_pos = atoi( osrfHashGet( osrfHashGet( fields, pkey ), "array_position" ) );
2570                                 char* pkey_val = jsonObjectToSimpleString( jsonObjectGetIndex( obj, pkey_pos ) );
2571                                 if ( osrfHashGet( dedup, pkey_val ) ) {
2572                                         jsonObjectFree(obj);
2573                                         free(pkey_val);
2574                                 } else {
2575                                         osrfHashSet( dedup, pkey_val, pkey_val );
2576                                         jsonObjectPush(res_list, obj);
2577                                 }
2578                         } while (dbi_result_next_row(result));
2579                 } else {
2580                         osrfLogDebug(OSRF_LOG_MARK, "%s returned no results for query %s", MODULENAME, sql);
2581                 }
2582
2583                 osrfHashFree(dedup);
2584
2585                 /* clean up the query */
2586                 dbi_result_free(result);
2587
2588         } else {
2589                 osrfLogError(OSRF_LOG_MARK, "%s: Error retrieving %s with query [%s]", MODULENAME, osrfHashGet(meta, "fieldmapper"), sql);
2590                 osrfAppSessionStatus(
2591                         ctx->session,
2592                         OSRF_STATUS_INTERNALSERVERERROR,
2593                         "osrfMethodException",
2594                         ctx->request,
2595                         "Severe query error -- see error log for more details"
2596                 );
2597                 *err = -1;
2598                 free(sql);
2599                 jsonObjectFree(res_list);
2600                 return jsonNULL;
2601
2602         }
2603
2604         free(sql);
2605
2606         if (res_list->size && order_hash) {
2607                 _tmp = jsonObjectGetKeyConst( order_hash, "flesh" );
2608                 if (_tmp) {
2609                         int x = (int)jsonObjectGetNumber(_tmp);
2610                         if (x == -1 || x > max_flesh_depth) x = max_flesh_depth;
2611
2612                         const jsonObject* temp_blob;
2613                         if ((temp_blob = jsonObjectGetKeyConst( order_hash, "flesh_fields" )) && x > 0) {
2614
2615                                 jsonObject* flesh_blob = jsonObjectClone( temp_blob );
2616                                 const jsonObject* flesh_fields = jsonObjectGetKeyConst( flesh_blob, core_class );
2617
2618                                 osrfStringArray* link_fields = NULL;
2619
2620                                 if (flesh_fields) {
2621                                         if (flesh_fields->size == 1) {
2622                                                 char* _t = jsonObjectToSimpleString( jsonObjectGetIndex( flesh_fields, 0 ) );
2623                                                 if (!strcmp(_t,"*")) link_fields = osrfHashKeys( links );
2624                                                 free(_t);
2625                                         }
2626
2627                                         if (!link_fields) {
2628                                                 jsonObjectNode* _f;
2629                                                 link_fields = osrfNewStringArray(1);
2630                                                 jsonObjectIterator* _i = jsonNewObjectIterator( flesh_fields );
2631                                                 while ((_f = jsonObjectIteratorNext( _i ))) {
2632                                                         osrfStringArrayAdd( link_fields, jsonObjectToSimpleString( _f->item ) );
2633                                                 }
2634                         jsonObjectIteratorFree(_i);
2635                                         }
2636                                 }
2637
2638                                 jsonObjectNode* cur;
2639                                 jsonObjectIterator* itr = jsonNewObjectIterator( res_list );
2640                                 while ((cur = jsonObjectIteratorNext( itr ))) {
2641
2642                                         int i = 0;
2643                                         char* link_field;
2644
2645                                         while ( (link_field = osrfStringArrayGetString(link_fields, i++)) ) {
2646
2647                                                 osrfLogDebug(OSRF_LOG_MARK, "Starting to flesh %s", link_field);
2648
2649                                                 osrfHash* kid_link = osrfHashGet(links, link_field);
2650                                                 if (!kid_link) continue;
2651
2652                                                 osrfHash* field = osrfHashGet(fields, link_field);
2653                                                 if (!field) continue;
2654
2655                                                 osrfHash* value_field = field;
2656
2657                                                 osrfHash* kid_idl = osrfHashGet(oilsIDL(), osrfHashGet(kid_link, "class"));
2658                                                 if (!kid_idl) continue;
2659
2660                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "has_many" ))) { // has_many
2661                                                         value_field = osrfHashGet( fields, osrfHashGet(meta, "primarykey") );
2662                                                 }
2663
2664                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "might_have" ))) { // might_have
2665                                                         value_field = osrfHashGet( fields, osrfHashGet(meta, "primarykey") );
2666                                                 }
2667
2668                                                 osrfStringArray* link_map = osrfHashGet( kid_link, "map" );
2669
2670                                                 if (link_map->size > 0) {
2671                                                         jsonObject* _kid_key = jsonParseString("[]");
2672                                                         jsonObjectPush(
2673                                                                 _kid_key,
2674                                                                 jsonNewObject( osrfStringArrayGetString( link_map, 0 ) )
2675                                                         );
2676
2677                                                         jsonObjectSetKey(
2678                                                                 flesh_blob,
2679                                                                 osrfHashGet(kid_link, "class"),
2680                                                                 _kid_key
2681                                                         );
2682                                                 };
2683
2684                                                 osrfLogDebug(
2685                                                         OSRF_LOG_MARK,
2686                                                         "Link field: %s, remote class: %s, fkey: %s, reltype: %s",
2687                                                         osrfHashGet(kid_link, "field"),
2688                                                         osrfHashGet(kid_link, "class"),
2689                                                         osrfHashGet(kid_link, "key"),
2690                                                         osrfHashGet(kid_link, "reltype")
2691                                                 );
2692
2693                                                 jsonObject* fake_params = jsonParseString("[]");
2694                                                 jsonObjectPush(fake_params, jsonParseString("{}")); // search hash
2695                                                 jsonObjectPush(fake_params, jsonParseString("{}")); // order/flesh hash
2696
2697                                                 osrfLogDebug(OSRF_LOG_MARK, "Creating dummy params object...");
2698
2699                                                 char* search_key =
2700                                                 jsonObjectToSimpleString(
2701                                                         jsonObjectGetIndex(
2702                                                                 cur->item,
2703                                                                 atoi( osrfHashGet(value_field, "array_position") )
2704                                                         )
2705                                                 );
2706
2707                                                 if (!search_key) {
2708                                                         osrfLogDebug(OSRF_LOG_MARK, "Nothing to search for!");
2709                                                         continue;
2710                                                 }
2711
2712                                                 jsonObjectSetKey(
2713                                                         jsonObjectGetIndex(fake_params, 0),
2714                                                         osrfHashGet(kid_link, "key"),
2715                                                         jsonNewObject( search_key )
2716                                                 );
2717
2718                                                 free(search_key);
2719
2720
2721                                                 jsonObjectSetKey(
2722                                                         jsonObjectGetIndex(fake_params, 1),
2723                                                         "flesh",
2724                                                         jsonNewNumberObject( (double)(x - 1 + link_map->size) )
2725                                                 );
2726
2727                                                 if (flesh_blob)
2728                                                         jsonObjectSetKey( jsonObjectGetIndex(fake_params, 1), "flesh_fields", jsonObjectClone(flesh_blob) );
2729
2730                                                 if (jsonObjectGetKeyConst(order_hash, "order_by")) {
2731                                                         jsonObjectSetKey(
2732                                                                 jsonObjectGetIndex(fake_params, 1),
2733                                                                 "order_by",
2734                                                                 jsonObjectClone(jsonObjectGetKeyConst(order_hash, "order_by"))
2735                                                         );
2736                                                 }
2737
2738                                                 if (jsonObjectGetKeyConst(order_hash, "select")) {
2739                                                         jsonObjectSetKey(
2740                                                                 jsonObjectGetIndex(fake_params, 1),
2741                                                                 "select",
2742                                                                 jsonObjectClone(jsonObjectGetKeyConst(order_hash, "select"))
2743                                                         );
2744                                                 }
2745
2746                                                 jsonObject* kids = doFieldmapperSearch(ctx, kid_idl, fake_params, err);
2747
2748                                                 if(*err) {
2749                                                         jsonObjectFree( fake_params );
2750                                                         osrfStringArrayFree(link_fields);
2751                                                         jsonObjectIteratorFree(itr);
2752                                                         jsonObjectFree(res_list);
2753                                                         return jsonNULL;
2754                                                 }
2755
2756                                                 osrfLogDebug(OSRF_LOG_MARK, "Search for %s return %d linked objects", osrfHashGet(kid_link, "class"), kids->size);
2757
2758                                                 jsonObject* X = NULL;
2759                                                 if ( link_map->size > 0 && kids->size > 0 ) {
2760                                                         X = kids;
2761                                                         kids = jsonParseString("[]");
2762
2763                                                         jsonObjectNode* _k_node;
2764                                                         jsonObjectIterator* _k = jsonNewObjectIterator( X );
2765                                                         while ((_k_node = jsonObjectIteratorNext( _k ))) {
2766                                                                 jsonObjectPush(
2767                                                                         kids,
2768                                                                         jsonObjectClone(
2769                                                                                 jsonObjectGetIndex(
2770                                                                                         _k_node->item,
2771                                                                                         (unsigned long)atoi(
2772                                                                                                 osrfHashGet(
2773                                                                                                         osrfHashGet(
2774                                                                                                                 osrfHashGet(
2775                                                                                                                         osrfHashGet(
2776                                                                                                                                 oilsIDL(),
2777                                                                                                                                 osrfHashGet(kid_link, "class")
2778                                                                                                                         ),
2779                                                                                                                         "fields"
2780                                                                                                                 ),
2781                                                                                                                 osrfStringArrayGetString( link_map, 0 )
2782                                                                                                         ),
2783                                                                                                         "array_position"
2784                                                                                                 )
2785                                                                                         )
2786                                                                                 )
2787                                                                         )
2788                                                                 );
2789                                                         }
2790                                                 }
2791
2792                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "has_a" )) || !(strcmp( osrfHashGet(kid_link, "reltype"), "might_have" ))) {
2793                                                         osrfLogDebug(OSRF_LOG_MARK, "Storing fleshed objects in %s", osrfHashGet(kid_link, "field"));
2794                                                         jsonObjectSetIndex(
2795                                                                 cur->item,
2796                                                                 (unsigned long)atoi( osrfHashGet( field, "array_position" ) ),
2797                                                                 jsonObjectClone( jsonObjectGetIndex(kids, 0) )
2798                                                         );
2799                                                 }
2800
2801                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "has_many" ))) { // has_many
2802                                                         osrfLogDebug(OSRF_LOG_MARK, "Storing fleshed objects in %s", osrfHashGet(kid_link, "field"));
2803                                                         jsonObjectSetIndex(
2804                                                                 cur->item,
2805                                                                 (unsigned long)atoi( osrfHashGet( field, "array_position" ) ),
2806                                                                 jsonObjectClone( kids )
2807                                                         );
2808                                                 }
2809
2810                                                 if (X) {
2811                                                         jsonObjectFree(kids);
2812                                                         kids = X;
2813                                                 }
2814
2815                                                 jsonObjectFree( kids );
2816                                                 jsonObjectFree( fake_params );
2817
2818                                                 osrfLogDebug(OSRF_LOG_MARK, "Fleshing of %s complete", osrfHashGet(kid_link, "field"));
2819                                                 osrfLogDebug(OSRF_LOG_MARK, "%s", jsonObjectToJSON(cur->item));
2820
2821                                         }
2822                                 }
2823                                 jsonObjectFree( flesh_blob );
2824                                 osrfStringArrayFree(link_fields);
2825                                 jsonObjectIteratorFree(itr);
2826                         }
2827                 }
2828         }
2829
2830         return res_list;
2831 }
2832
2833
2834 static jsonObject* doUpdate(osrfMethodContext* ctx, int* err ) {
2835
2836         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
2837         jsonObject* target = jsonObjectGetIndex(ctx->params, 0);
2838
2839         if (!verifyObjectClass(ctx, target)) {
2840                 *err = -1;
2841                 return jsonNULL;
2842         }
2843
2844         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
2845                 osrfAppSessionStatus(
2846                         ctx->session,
2847                         OSRF_STATUS_BADREQUEST,
2848                         "osrfMethodException",
2849                         ctx->request,
2850                         "No active transaction -- required for UPDATE"
2851                 );
2852                 *err = -1;
2853                 return jsonNULL;
2854         }
2855
2856         if (osrfHashGet( meta, "readonly" ) && strncasecmp("true", osrfHashGet( meta, "readonly" ), 4)) {
2857                 osrfAppSessionStatus(
2858                         ctx->session,
2859                         OSRF_STATUS_BADREQUEST,
2860                         "osrfMethodException",
2861                         ctx->request,
2862                         "Cannot UPDATE readonly class"
2863                 );
2864                 *err = -1;
2865                 return jsonNULL;
2866         }
2867
2868         dbhandle = writehandle;
2869
2870         char* trans_id = osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" );
2871
2872         // Set the last_xact_id
2873         osrfHash* last_xact_id;
2874         if ((last_xact_id = oilsIDLFindPath("/%s/fields/last_xact_id", target->classname))) {
2875                 int index = atoi( osrfHashGet(last_xact_id, "array_position") );
2876                 osrfLogDebug(OSRF_LOG_MARK, "Setting last_xact_id to %s on %s at position %d", trans_id, target->classname, index);
2877                 jsonObjectSetIndex(target, index, jsonNewObject(trans_id));
2878         }
2879
2880         char* pkey = osrfHashGet(meta, "primarykey");
2881         osrfHash* fields = osrfHashGet(meta, "fields");
2882
2883         char* id =
2884                 jsonObjectToSimpleString(
2885                         jsonObjectGetIndex(
2886                                 target,
2887                                 atoi( osrfHashGet( osrfHashGet( fields, pkey ), "array_position" ) )
2888                         )
2889                 );
2890
2891         osrfLogDebug(
2892                 OSRF_LOG_MARK,
2893                 "%s updating %s object with %s = %s",
2894                 MODULENAME,
2895                 osrfHashGet(meta, "fieldmapper"),
2896                 pkey,
2897                 id
2898         );
2899
2900         growing_buffer* sql = buffer_init(128);
2901         buffer_fadd(sql,"UPDATE %s SET", osrfHashGet(meta, "tablename"));
2902
2903         int i = 0;
2904         int first = 1;
2905         char* field_name;
2906         osrfStringArray* field_list = osrfHashKeys( fields );
2907         while ( (field_name = osrfStringArrayGetString(field_list, i++)) ) {
2908
2909                 osrfHash* field = osrfHashGet( fields, field_name );
2910
2911                 if(!( strcmp( field_name, pkey ) )) continue;
2912                 if(!( strcmp( osrfHashGet(osrfHashGet(fields,field_name), "virtual"), "true" ) )) continue;
2913
2914                 jsonObject* field_object = jsonObjectGetIndex( target, atoi(osrfHashGet(field, "array_position")) );
2915
2916                 char* value;
2917                 if (field_object && field_object->classname) {
2918                         value = jsonObjectToSimpleString(
2919                                         jsonObjectGetIndex(
2920                                                 field_object,
2921                                                 atoi(
2922                                                         osrfHashGet(
2923                                                                 osrfHashGet(
2924                                                                         oilsIDLFindPath("/%s/fields", field_object->classname),
2925                                                                         (char*)oilsIDLFindPath("/%s/primarykey", field_object->classname)
2926                                                                 ),
2927                                                                 "array_position"
2928                                                         )
2929                                                 )
2930                                         )
2931                                 );
2932
2933                 } else {
2934                         value = jsonObjectToSimpleString( field_object );
2935                 }
2936
2937                 osrfLogDebug( OSRF_LOG_MARK, "Updating %s object with %s = %s", osrfHashGet(meta, "fieldmapper"), field_name, value);
2938
2939                 if (!field_object || field_object->type == JSON_NULL) {
2940                         if ( !(!( strcmp( osrfHashGet(meta, "classname"), "au" ) ) && !( strcmp( field_name, "passwd" ) )) ) { // arg at the special case!
2941                                 if (first) first = 0;
2942                                 else buffer_add(sql, ",");
2943                                 buffer_fadd( sql, " %s = NULL", field_name );
2944                         }
2945
2946                 } else if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
2947                         if (first) first = 0;
2948                         else buffer_add(sql, ",");
2949
2950                         if ( !strncmp(osrfHashGet(field, "datatype"), "INT", (size_t)3) ) {
2951                                 buffer_fadd( sql, " %s = %ld", field_name, atol(value) );
2952                         } else if ( !strcmp(osrfHashGet(field, "datatype"), "NUMERIC") ) {
2953                                 buffer_fadd( sql, " %s = %f", field_name, atof(value) );
2954                         }
2955
2956                         osrfLogDebug( OSRF_LOG_MARK, "%s is of type %s", field_name, osrfHashGet(field, "datatype"));
2957
2958                 } else {
2959                         if ( dbi_conn_quote_string(dbhandle, &value) ) {
2960                                 if (first) first = 0;
2961                                 else buffer_add(sql, ",");
2962                                 buffer_fadd( sql, " %s = %s", field_name, value );
2963
2964                         } else {
2965                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting string [%s]", MODULENAME, value);
2966                                 osrfAppSessionStatus(
2967                                         ctx->session,
2968                                         OSRF_STATUS_INTERNALSERVERERROR,
2969                                         "osrfMethodException",
2970                                         ctx->request,
2971                                         "Error quoting string -- please see the error log for more details"
2972                                 );
2973                                 free(value);
2974                                 free(id);
2975                                 buffer_free(sql);
2976                                 *err = -1;
2977                                 return jsonNULL;
2978                         }
2979                 }
2980
2981                 free(value);
2982
2983         }
2984
2985         jsonObject* obj = jsonParseString(id);
2986
2987         if ( strcmp( osrfHashGet( osrfHashGet( osrfHashGet(meta, "fields"), pkey ), "primitive" ), "number" ) )
2988                 dbi_conn_quote_string(dbhandle, &id);
2989
2990         buffer_fadd( sql, " WHERE %s = %s;", pkey, id );
2991
2992         char* query = buffer_release(sql);
2993         osrfLogDebug(OSRF_LOG_MARK, "%s: Update SQL [%s]", MODULENAME, query);
2994
2995         dbi_result result = dbi_conn_query(dbhandle, query);
2996         free(query);
2997
2998         if (!result) {
2999                 jsonObjectFree(obj);
3000                 obj = jsonNewObject(NULL);
3001                 osrfLogError(
3002                         OSRF_LOG_MARK,
3003                         "%s ERROR updating %s object with %s = %s",
3004                         MODULENAME,
3005                         osrfHashGet(meta, "fieldmapper"),
3006                         pkey,
3007                         id
3008                 );
3009         }
3010
3011         free(id);
3012
3013         return obj;
3014 }
3015
3016 static jsonObject* doDelete(osrfMethodContext* ctx, int* err ) {
3017
3018         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
3019
3020         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
3021                 osrfAppSessionStatus(
3022                         ctx->session,
3023                         OSRF_STATUS_BADREQUEST,
3024                         "osrfMethodException",
3025                         ctx->request,
3026                         "No active transaction -- required for DELETE"
3027                 );
3028                 *err = -1;
3029                 return jsonNULL;
3030         }
3031
3032         if (osrfHashGet( meta, "readonly" ) && strncasecmp("true", osrfHashGet( meta, "readonly" ), 4)) {
3033                 osrfAppSessionStatus(
3034                         ctx->session,
3035                         OSRF_STATUS_BADREQUEST,
3036                         "osrfMethodException",
3037                         ctx->request,
3038                         "Cannot DELETE readonly class"
3039                 );
3040                 *err = -1;
3041                 return jsonNULL;
3042         }
3043
3044         dbhandle = writehandle;
3045
3046         jsonObject* obj;
3047
3048         char* pkey = osrfHashGet(meta, "primarykey");
3049
3050         char* id;
3051         if (jsonObjectGetIndex(ctx->params, 0)->classname) {
3052                 if (!verifyObjectClass(ctx, jsonObjectGetIndex( ctx->params, 0 ))) {
3053                         *err = -1;
3054                         return jsonNULL;
3055                 }
3056
3057                 id = jsonObjectToSimpleString(
3058                         jsonObjectGetIndex(
3059                                 jsonObjectGetIndex(ctx->params, 0),
3060                                 atoi( osrfHashGet( osrfHashGet( osrfHashGet(meta, "fields"), pkey ), "array_position") )
3061                         )
3062                 );
3063         } else {
3064                 id = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
3065         }
3066
3067         osrfLogDebug(
3068                 OSRF_LOG_MARK,
3069                 "%s deleting %s object with %s = %s",
3070                 MODULENAME,
3071                 osrfHashGet(meta, "fieldmapper"),
3072                 pkey,
3073                 id
3074         );
3075
3076         obj = jsonParseString(id);
3077
3078         if ( strcmp( osrfHashGet( osrfHashGet( osrfHashGet(meta, "fields"), pkey ), "primitive" ), "number" ) )
3079                 dbi_conn_quote_string(writehandle, &id);
3080
3081         dbi_result result = dbi_conn_queryf(writehandle, "DELETE FROM %s WHERE %s = %s;", osrfHashGet(meta, "tablename"), pkey, id);
3082
3083         if (!result) {
3084                 jsonObjectFree(obj);
3085                 obj = jsonNewObject(NULL);
3086                 osrfLogError(
3087                         OSRF_LOG_MARK,
3088                         "%s ERROR deleting %s object with %s = %s",
3089                         MODULENAME,
3090                         osrfHashGet(meta, "fieldmapper"),
3091                         pkey,
3092                         id
3093                 );
3094         }
3095
3096         free(id);
3097
3098         return obj;
3099
3100 }
3101
3102
3103 static jsonObject* oilsMakeFieldmapperFromResult( dbi_result result, osrfHash* meta) {
3104         if(!(result && meta)) return jsonNULL;
3105
3106         jsonObject* object = jsonNewObject(NULL);
3107         jsonObjectSetClass(object, osrfHashGet(meta, "classname"));
3108
3109         osrfHash* fields = osrfHashGet(meta, "fields");
3110
3111         osrfLogInternal(OSRF_LOG_MARK, "Setting object class to %s ", object->classname);
3112
3113         osrfHash* _f;
3114         time_t _tmp_dt;
3115         char dt_string[256];
3116         struct tm gmdt;
3117
3118         int fmIndex;
3119         int columnIndex = 1;
3120         int attr;
3121         unsigned short type;
3122         const char* columnName;
3123
3124         /* cycle through the column list */
3125         while( (columnName = dbi_result_get_field_name(result, columnIndex++)) ) {
3126
3127                 osrfLogInternal(OSRF_LOG_MARK, "Looking for column named [%s]...", (char*)columnName);
3128
3129                 fmIndex = -1; // reset the position
3130
3131                 /* determine the field type and storage attributes */
3132                 type = dbi_result_get_field_type(result, columnName);
3133                 attr = dbi_result_get_field_attribs(result, columnName);
3134
3135                 /* fetch the fieldmapper index */
3136                 if( (_f = osrfHashGet(fields, (char*)columnName)) ) {
3137                         char* virt = (char*)osrfHashGet(_f, "virtual");
3138                         char* pos = (char*)osrfHashGet(_f, "array_position");
3139
3140                         if ( !virt || !pos || !(strcmp( virt, "true" )) ) continue;
3141
3142                         fmIndex = atoi( pos );
3143                         osrfLogInternal(OSRF_LOG_MARK, "... Found column at position [%s]...", pos);
3144                 } else {
3145                         continue;
3146                 }
3147
3148                 if (dbi_result_field_is_null(result, columnName)) {
3149                         jsonObjectSetIndex( object, fmIndex, jsonNewObject(NULL) );
3150                 } else {
3151
3152                         switch( type ) {
3153
3154                                 case DBI_TYPE_INTEGER :
3155
3156                                         if( attr & DBI_INTEGER_SIZE8 )
3157                                                 jsonObjectSetIndex( object, fmIndex,
3158                                                         jsonNewNumberObject(dbi_result_get_longlong(result, columnName)));
3159                                         else
3160                                                 jsonObjectSetIndex( object, fmIndex,
3161                                                         jsonNewNumberObject(dbi_result_get_long(result, columnName)));
3162
3163                                         break;
3164
3165                                 case DBI_TYPE_DECIMAL :
3166                                         jsonObjectSetIndex( object, fmIndex,
3167                                                         jsonNewNumberObject(dbi_result_get_double(result, columnName)));
3168                                         break;
3169
3170                                 case DBI_TYPE_STRING :
3171
3172
3173                                         jsonObjectSetIndex(
3174                                                 object,
3175                                                 fmIndex,
3176                                                 jsonNewObject( dbi_result_get_string(result, columnName) )
3177                                         );
3178
3179                                         break;
3180
3181                                 case DBI_TYPE_DATETIME :
3182
3183                                         memset(dt_string, '\0', sizeof(dt_string));
3184                                         memset(&gmdt, '\0', sizeof(gmdt));
3185                                         memset(&_tmp_dt, '\0', sizeof(_tmp_dt));
3186
3187                                         _tmp_dt = dbi_result_get_datetime(result, columnName);
3188
3189                                         localtime_r( &_tmp_dt, &gmdt );
3190
3191                                         if (!(attr & DBI_DATETIME_DATE)) {
3192                                                 strftime(dt_string, 255, "%T", &gmdt);
3193                                         } else if (!(attr & DBI_DATETIME_TIME)) {
3194                                                 strftime(dt_string, 255, "%F", &gmdt);
3195                                         } else {
3196                                                 strftime(dt_string, 255, "%FT%T%z", &gmdt);
3197                                         }
3198
3199                                         jsonObjectSetIndex( object, fmIndex, jsonNewObject(dt_string) );
3200
3201                                         break;
3202
3203                                 case DBI_TYPE_BINARY :
3204                                         osrfLogError( OSRF_LOG_MARK,
3205                                                 "Can't do binary at column %s : index %d", columnName, columnIndex - 1);
3206                         }
3207                 }
3208         }
3209
3210         return object;
3211 }
3212
3213 static jsonObject* oilsMakeJSONFromResult( dbi_result result ) {
3214         if(!result) return jsonNULL;
3215
3216         jsonObject* object = jsonNewObject(NULL);
3217
3218         time_t _tmp_dt;
3219         char dt_string[256];
3220         struct tm gmdt;
3221
3222         int fmIndex;
3223         int columnIndex = 1;
3224         int attr;
3225         unsigned short type;
3226         const char* columnName;
3227
3228         /* cycle through the column list */
3229         while( (columnName = dbi_result_get_field_name(result, columnIndex++)) ) {
3230
3231                 osrfLogInternal(OSRF_LOG_MARK, "Looking for column named [%s]...", (char*)columnName);
3232
3233                 fmIndex = -1; // reset the position
3234
3235                 /* determine the field type and storage attributes */
3236                 type = dbi_result_get_field_type(result, columnName);
3237                 attr = dbi_result_get_field_attribs(result, columnName);
3238
3239                 if (dbi_result_field_is_null(result, columnName)) {
3240                         jsonObjectSetKey( object, columnName, jsonNewObject(NULL) );
3241                 } else {
3242
3243                         switch( type ) {
3244
3245                                 case DBI_TYPE_INTEGER :
3246
3247                                         if( attr & DBI_INTEGER_SIZE8 )
3248                                                 jsonObjectSetKey( object, columnName, jsonNewNumberObject(dbi_result_get_longlong(result, columnName)) );
3249                                         else
3250                                                 jsonObjectSetKey( object, columnName, jsonNewNumberObject(dbi_result_get_long(result, columnName)) );
3251                                         break;
3252
3253                                 case DBI_TYPE_DECIMAL :
3254                                         jsonObjectSetKey( object, columnName, jsonNewNumberObject(dbi_result_get_double(result, columnName)) );
3255                                         break;
3256
3257                                 case DBI_TYPE_STRING :
3258                                         jsonObjectSetKey( object, columnName, jsonNewObject(dbi_result_get_string(result, columnName)) );
3259                                         break;
3260
3261                                 case DBI_TYPE_DATETIME :
3262
3263                                         memset(dt_string, '\0', sizeof(dt_string));
3264                                         memset(&gmdt, '\0', sizeof(gmdt));
3265                                         memset(&_tmp_dt, '\0', sizeof(_tmp_dt));
3266
3267                                         _tmp_dt = dbi_result_get_datetime(result, columnName);
3268
3269                                         localtime_r( &_tmp_dt, &gmdt );
3270
3271                                         if (!(attr & DBI_DATETIME_DATE)) {
3272                                                 strftime(dt_string, 255, "%T", &gmdt);
3273                                         } else if (!(attr & DBI_DATETIME_TIME)) {
3274                                                 strftime(dt_string, 255, "%F", &gmdt);
3275                                         } else {
3276                                                 strftime(dt_string, 255, "%FT%T%z", &gmdt);
3277                                         }
3278
3279                                         jsonObjectSetKey( object, columnName, jsonNewObject(dt_string) );
3280                                         break;
3281
3282                                 case DBI_TYPE_BINARY :
3283                                         osrfLogError( OSRF_LOG_MARK,
3284                                                 "Can't do binary at column %s : index %d", columnName, columnIndex - 1);
3285                         }
3286                 }
3287         }
3288
3289         return object;
3290 }
3291