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

   1 #include "opensrf/osrf_application.h"
   2 #include "opensrf/osrf_settings.h"
   3 #include "opensrf/utils.h"
   4 #include "objson/object.h"
   5 #include "opensrf/log.h"
   6 #include "oils_utils.h"
   7 #include "oils_constants.h"
   8 #include "oils_event.h"
   9 #include "oils_idl.h"
  10 #include <dbi/dbi.h>
  11
  12 #include <time.h>
  13 #include <stdlib.h>
  14 #include <string.h>
  15
  16 #ifdef RSTORE
  17 #  define MODULENAME "open-ils.reporter-store"
  18 #else
  19 #  define MODULENAME "open-ils.cstore"
  20 #endif
  21
  22 #define PERSIST_NS "http://open-ils.org/spec/opensrf/IDL/persistance/v1"
  23 #define OBJECT_NS "http://open-ils.org/spec/opensrf/IDL/objects/v1"
  24 #define BASE_NS "http://opensrf.org/spec/IDL/base/v1"
  25
  26 int osrfAppChildInit();
  27 int osrfAppInitialize();
  28
  29 int verifyObjectClass ( osrfMethodContext*, jsonObject* );
  30
  31 int beginTransaction ( osrfMethodContext* );
  32 int commitTransaction ( osrfMethodContext* );
  33 int rollbackTransaction ( osrfMethodContext* );
  34
  35 int setSavepoint ( osrfMethodContext* );
  36 int releaseSavepoint ( osrfMethodContext* );
  37 int rollbackSavepoint ( osrfMethodContext* );
  38
  39 int dispatchCRUDMethod ( osrfMethodContext* );
  40 jsonObject* doCreate ( osrfMethodContext*, int* );
  41 jsonObject* doRetrieve ( osrfMethodContext*, int* );
  42 jsonObject* doUpdate ( osrfMethodContext*, int* );
  43 jsonObject* doDelete ( osrfMethodContext*, int* );
  44 jsonObject* doSearch ( osrfMethodContext*, osrfHash*, jsonObject*, int* );
  45 jsonObject* oilsMakeJSONFromResult( dbi_result, osrfHash* );
  46
  47 char* searchWriteSimplePredicate ( osrfHash*, const char*, const char*, const char* );
  48 char* searchSimplePredicate ( const char*, osrfHash*, jsonObject* );
  49 char* searchFunctionPredicate ( osrfHash*, jsonObjectNode* );
  50 char* searchFieldTransform (osrfHash*, jsonObject*);
  51 char* searchFieldTransformPredicate ( osrfHash*, jsonObjectNode* );
  52 char* searchBETWEENPredicate ( osrfHash*, jsonObject* );
  53 char* searchINPredicate ( osrfHash*, jsonObject*, const char* );
  54 char* searchPredicate ( osrfHash*, jsonObject* );
  55 char* buildSELECT ( jsonObject*, jsonObject*, osrfHash*, osrfMethodContext* );
  56
  57 void userDataFree( void* );
  58 void sessionDataFree( char*, void* );
  59
  60 dbi_conn writehandle; /* our MASTER db connection */
  61 dbi_conn dbhandle; /* our CURRENT db connection */
  62 osrfHash readHandles;
  63 jsonObject* jsonNULL = NULL; //
  64
  65
  66 /* parse and store the IDL here */
  67 osrfHash* idl;
  68
  69 int osrfAppInitialize() {
  70         growing_buffer* method_name;
  71
  72         osrfLogInfo(OSRF_LOG_MARK, "Initializing the CStore Server...");
  73         osrfLogInfo(OSRF_LOG_MARK, "Finding XML file...");
  74
  75         char* idl_filename = osrf_settings_host_value("/apps/%s/app_settings/IDL", MODULENAME);
  76         osrfLogInfo(OSRF_LOG_MARK, "Found file:");
  77         osrfLogInfo(OSRF_LOG_MARK, idl_filename);
  78
  79         idl = oilsIDLInit( idl_filename );
  80
  81         if (!idl) {
  82                 osrfLogError(OSRF_LOG_MARK, "Problem loading the IDL.  Seacrest out!");
  83                 exit(1);
  84         }
  85
  86         // first we register all the transaction and savepoint methods
  87         method_name =  buffer_init(64);
  88         buffer_fadd(method_name, "%s.transaction.begin", MODULENAME);
  89         osrfAppRegisterMethod( MODULENAME, buffer_data(method_name), "beginTransaction", "", 0, 0 );
  90
  91         buffer_reset(method_name);
  92         buffer_fadd(method_name, "%s.transaction.commit", MODULENAME);
  93         osrfAppRegisterMethod( MODULENAME, buffer_data(method_name), "commitTransaction", "", 0, 0 );
  94
  95         buffer_reset(method_name);
  96         buffer_fadd(method_name, "%s.transaction.rollback", MODULENAME);
  97         osrfAppRegisterMethod( MODULENAME, buffer_data(method_name), "rollbackTransaction", "", 0, 0 );
  98
  99
 100         buffer_reset(method_name);
 101         buffer_fadd(method_name, "%s.savepoint.set", MODULENAME);
 102         osrfAppRegisterMethod( MODULENAME, buffer_data(method_name), "setSavepoint", "", 1, 0 );
 103
 104         buffer_reset(method_name);
 105         buffer_fadd(method_name, "%s.savepoint.release", MODULENAME);
 106         osrfAppRegisterMethod( MODULENAME, buffer_data(method_name), "releaseSavepoint", "", 1, 0 );
 107
 108         buffer_reset(method_name);
 109         buffer_fadd(method_name, "%s.savepoint.rollback", MODULENAME);
 110         osrfAppRegisterMethod( MODULENAME, buffer_data(method_name), "rollbackSavepoint", "", 1, 0 );
 111
 112         osrfStringArray* global_methods = osrfNewStringArray(6);
 113
 114         osrfStringArrayAdd( global_methods, "create" );
 115         osrfStringArrayAdd( global_methods, "retrieve" );
 116         osrfStringArrayAdd( global_methods, "update" );
 117         osrfStringArrayAdd( global_methods, "delete" );
 118         osrfStringArrayAdd( global_methods, "search" );
 119         osrfStringArrayAdd( global_methods, "id_list" );
 120
 121         int c_index = 0;
 122         char* classname;
 123         osrfStringArray* classes = osrfHashKeys( idl );
 124         osrfLogDebug(OSRF_LOG_MARK, "%d classes loaded", classes->size );
 125         osrfLogDebug(OSRF_LOG_MARK, "At least %d methods will be generated", classes->size * global_methods->size);
 126
 127         while ( (classname = osrfStringArrayGetString(classes, c_index++)) ) {
 128                 osrfLogInfo(OSRF_LOG_MARK, "Generating class methods for %s", classname);
 129
 130                 osrfHash* idlClass = osrfHashGet(idl, classname);
 131
 132                 if (!osrfStringArrayContains( osrfHashGet(idlClass, "controller"), MODULENAME )) {
 133                         osrfLogInfo(OSRF_LOG_MARK, "%s is not listed as a controller for %s, moving on", MODULENAME, classname);
 134                         continue;
 135                 }
 136
 137                 char* virt = osrfHashGet(idlClass, "virtual");
 138                 if (virt && !strcmp( virt, "true")) {
 139                         osrfLogDebug(OSRF_LOG_MARK, "Class %s is virtual, skipping", classname );
 140                         continue;
 141                 }
 142
 143                 int i = 0;
 144                 char* method_type;
 145                 char* st_tmp;
 146                 char* _fm;
 147                 char* part;
 148                 osrfHash* method_meta;
 149                 while ( (method_type = osrfStringArrayGetString(global_methods, i++)) ) {
 150                         osrfLogDebug(OSRF_LOG_MARK, "Using files to build %s class methods for %s", method_type, classname);
 151
 152                         if (!osrfHashGet(idlClass, "fieldmapper")) continue;
 153
 154                         method_meta = osrfNewHash();
 155                         osrfHashSet(method_meta, idlClass, "class");
 156
 157                         _fm = strdup( (char*)osrfHashGet(idlClass, "fieldmapper") );
 158                         part = strtok_r(_fm, ":", &st_tmp);
 159
 160                         growing_buffer* method_name =  buffer_init(64);
 161                         buffer_fadd(method_name, "%s.direct.%s", MODULENAME, part);
 162
 163                         while ((part = strtok_r(NULL, ":", &st_tmp))) {
 164                                 buffer_fadd(method_name, ".%s", part);
 165                         }
 166                         buffer_fadd(method_name, ".%s", method_type);
 167
 168
 169                         char* method = buffer_data(method_name);
 170                         buffer_free(method_name);
 171                         free(_fm);
 172
 173                         osrfHashSet( method_meta, method, "methodname" );
 174                         osrfHashSet( method_meta, method_type, "methodtype" );
 175
 176                         int flags = 0;
 177                         if (!(strcmp( method_type, "search" )) || !(strcmp( method_type, "id_list" ))) {
 178                                 flags = flags | OSRF_METHOD_STREAMING;
 179                         }
 180
 181                         osrfAppRegisterExtendedMethod(
 182                                 MODULENAME,
 183                                 method,
 184                                 "dispatchCRUDMethod",
 185                                 "",
 186                                 1,
 187                                 flags,
 188                                 (void*)method_meta
 189                         );
 190                 }
 191         }
 192
 193         return 0;
 194 }
 195
 196 /**
 197  * Connects to the database
 198  */
 199 int osrfAppChildInit() {
 200
 201         osrfLogDebug(OSRF_LOG_MARK, "Attempting to initialize libdbi...");
 202         dbi_initialize(NULL);
 203         osrfLogDebug(OSRF_LOG_MARK, "... libdbi initialized.");
 204
 205         char* driver    = osrf_settings_host_value("/apps/%s/app_settings/driver", MODULENAME);
 206         char* user      = osrf_settings_host_value("/apps/%s/app_settings/database/user", MODULENAME);
 207         char* host      = osrf_settings_host_value("/apps/%s/app_settings/database/host", MODULENAME);
 208         char* port      = osrf_settings_host_value("/apps/%s/app_settings/database/port", MODULENAME);
 209         char* db        = osrf_settings_host_value("/apps/%s/app_settings/database/db", MODULENAME);
 210         char* pw        = osrf_settings_host_value("/apps/%s/app_settings/database/pw", MODULENAME);
 211
 212         osrfLogDebug(OSRF_LOG_MARK, "Attempting to load the database driver [%s]...", driver);
 213         writehandle = dbi_conn_new(driver);
 214
 215         if(!writehandle) {
 216                 osrfLogError(OSRF_LOG_MARK, "Error loading database driver [%s]", driver);
 217                 return -1;
 218         }
 219         osrfLogDebug(OSRF_LOG_MARK, "Database driver [%s] seems OK", driver);
 220
 221         osrfLogInfo(OSRF_LOG_MARK, "%s connecting to database.  host=%s, "
 222                 "port=%s, user=%s, pw=%s, db=%s", MODULENAME, host, port, user, pw, db );
 223
 224         if(host) dbi_conn_set_option(writehandle, "host", host );
 225         if(port) dbi_conn_set_option_numeric( writehandle, "port", atoi(port) );
 226         if(user) dbi_conn_set_option(writehandle, "username", user);
 227         if(pw) dbi_conn_set_option(writehandle, "password", pw );
 228         if(db) dbi_conn_set_option(writehandle, "dbname", db );
 229
 230         free(user);
 231         free(host);
 232         free(port);
 233         free(db);
 234         free(pw);
 235
 236         const char* err;
 237         if (dbi_conn_connect(writehandle) < 0) {
 238                 dbi_conn_error(writehandle, &err);
 239                 osrfLogError( OSRF_LOG_MARK, "Error connecting to database: %s", err);
 240                 return -1;
 241         }
 242
 243         osrfLogInfo(OSRF_LOG_MARK, "%s successfully connected to the database", MODULENAME);
 244
 245         int attr;
 246         unsigned short type;
 247         int i = 0;
 248         char* classname;
 249         osrfStringArray* classes = osrfHashKeys( idl );
 250
 251         while ( (classname = osrfStringArrayGetString(classes, i++)) ) {
 252                 osrfHash* class = osrfHashGet( idl, classname );
 253                 osrfHash* fields = osrfHashGet( class, "fields" );
 254
 255                 char* virt = osrfHashGet(class, "virtual");
 256                 if (virt && !strcmp( virt, "true")) {
 257                         osrfLogDebug(OSRF_LOG_MARK, "Class %s is virtual, skipping", classname );
 258                         continue;
 259                 }
 260
 261
 262                 growing_buffer* sql_buf = buffer_init(32);
 263                 buffer_fadd( sql_buf, "SELECT * FROM %s WHERE 1=0;", osrfHashGet(class, "tablename") );
 264
 265                 char* sql = buffer_data(sql_buf);
 266                 buffer_free(sql_buf);
 267                 osrfLogDebug(OSRF_LOG_MARK, "%s Investigatory SQL = %s", MODULENAME, sql);
 268
 269                 dbi_result result = dbi_conn_query(writehandle, sql);
 270                 free(sql);
 271
 272                 if (result) {
 273
 274                         int columnIndex = 1;
 275                         const char* columnName;
 276                         osrfHash* _f;
 277                         while( (columnName = dbi_result_get_field_name(result, columnIndex++)) ) {
 278
 279                                 osrfLogInternal(OSRF_LOG_MARK, "Looking for column named [%s]...", (char*)columnName);
 280
 281                                 /* fetch the fieldmapper index */
 282                                 if( (_f = osrfHashGet(fields, (char*)columnName)) ) {
 283
 284                                         osrfLogDebug(OSRF_LOG_MARK, "Found [%s] in IDL hash...", (char*)columnName);
 285
 286                                         /* determine the field type and storage attributes */
 287                                         type = dbi_result_get_field_type(result, columnName);
 288                                         attr = dbi_result_get_field_attribs(result, columnName);
 289
 290                                         switch( type ) {
 291
 292                                                 case DBI_TYPE_INTEGER :
 293
 294                                                         if ( !osrfHashGet(_f, "primitive") )
 295                                                                 osrfHashSet(_f,"number", "primitive");
 296
 297                                                         if( attr & DBI_INTEGER_SIZE8 )
 298                                                                 osrfHashSet(_f,"INT8", "datatype");
 299                                                         else
 300                                                                 osrfHashSet(_f,"INT", "datatype");
 301                                                         break;
 302
 303                                                 case DBI_TYPE_DECIMAL :
 304                                                         if ( !osrfHashGet(_f, "primitive") )
 305                                                                 osrfHashSet(_f,"number", "primitive");
 306
 307                                                         osrfHashSet(_f,"NUMERIC", "datatype");
 308                                                         break;
 309
 310                                                 case DBI_TYPE_STRING :
 311                                                         if ( !osrfHashGet(_f, "primitive") )
 312                                                                 osrfHashSet(_f,"string", "primitive");
 313                                                         osrfHashSet(_f,"TEXT", "datatype");
 314                                                         break;
 315
 316                                                 case DBI_TYPE_DATETIME :
 317                                                         if ( !osrfHashGet(_f, "primitive") )
 318                                                                 osrfHashSet(_f,"string", "primitive");
 319
 320                                                         osrfHashSet(_f,"TIMESTAMP", "datatype");
 321                                                         break;
 322
 323                                                 case DBI_TYPE_BINARY :
 324                                                         if ( !osrfHashGet(_f, "primitive") )
 325                                                                 osrfHashSet(_f,"string", "primitive");
 326
 327                                                         osrfHashSet(_f,"BYTEA", "datatype");
 328                                         }
 329
 330                                         osrfLogDebug(
 331                                                 OSRF_LOG_MARK,
 332                                                 "Setting [%s] to primitive [%s] and datatype [%s]...",
 333                                                 (char*)columnName,
 334                                                 osrfHashGet(_f, "primitive"),
 335                                                 osrfHashGet(_f, "datatype")
 336                                         );
 337                                 }
 338                         }
 339                         dbi_result_free(result);
 340                 } else {
 341                         osrfLogDebug(OSRF_LOG_MARK, "No data found for class [%s]...", (char*)classname);
 342                 }
 343         }
 344
 345         osrfStringArrayFree(classes);
 346
 347         return 0;
 348 }
 349
 350 void userDataFree( void* blob ) {
 351         osrfHashFree( (osrfHash*)blob );
 352         return;
 353 }
 354
 355 void sessionDataFree( char* key, void* item ) {
 356         if (!(strcmp(key,"xact_id"))) {
 357                 if (writehandle)
 358                         dbi_conn_query(writehandle, "ROLLBACK;");
 359                 free(item);
 360         }
 361
 362         return;
 363 }
 364
 365 int beginTransaction ( osrfMethodContext* ctx ) {
 366         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 367
 368         dbi_result result = dbi_conn_query(writehandle, "START TRANSACTION;");
 369         if (!result) {
 370                 osrfLogError(OSRF_LOG_MARK, "%s: Error starting transaction", MODULENAME );
 371                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error starting transaction" );
 372                 return -1;
 373         } else {
 374                 jsonObject* ret = jsonNewObject(ctx->session->session_id);
 375                 osrfAppRespondComplete( ctx, ret );
 376                 jsonObjectFree(ret);
 377
 378                 if (!ctx->session->userData) {
 379                         ctx->session->userData = osrfNewHash();
 380                         ((osrfHash*)ctx->session->userData)->freeItem = &sessionDataFree;
 381                 }
 382
 383                 osrfHashSet( (osrfHash*)ctx->session->userData, strdup( ctx->session->session_id ), "xact_id" );
 384                 ctx->session->userDataFree = &userDataFree;
 385
 386         }
 387         return 0;
 388 }
 389
 390 int setSavepoint ( osrfMethodContext* ctx ) {
 391         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 392
 393         char* spName = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
 394
 395         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 396                 osrfAppSessionStatus(
 397                         ctx->session,
 398                         OSRF_STATUS_INTERNALSERVERERROR,
 399                         "osrfMethodException",
 400                         ctx->request,
 401                         "No active transaction -- required for savepoints"
 402                 );
 403                 return -1;
 404         }
 405
 406         dbi_result result = dbi_conn_queryf(writehandle, "SAVEPOINT \"%s\";", spName);
 407         if (!result) {
 408                 osrfLogError(
 409                         OSRF_LOG_MARK,
 410                         "%s: Error creating savepoint %s in transaction %s",
 411                         MODULENAME,
 412                         spName,
 413                         osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )
 414                 );
 415                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error creating savepoint" );
 416                 return -1;
 417         } else {
 418                 jsonObject* ret = jsonNewObject(spName);
 419                 osrfAppRespondComplete( ctx, ret );
 420                 jsonObjectFree(ret);
 421         }
 422         return 0;
 423 }
 424
 425 int releaseSavepoint ( osrfMethodContext* ctx ) {
 426         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 427
 428         char* spName = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
 429
 430         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 431                 osrfAppSessionStatus(
 432                         ctx->session,
 433                         OSRF_STATUS_INTERNALSERVERERROR,
 434                         "osrfMethodException",
 435                         ctx->request,
 436                         "No active transaction -- required for savepoints"
 437                 );
 438                 return -1;
 439         }
 440
 441         dbi_result result = dbi_conn_queryf(writehandle, "RELEASE SAVEPOINT \"%s\";", spName);
 442         if (!result) {
 443                 osrfLogError(
 444                         OSRF_LOG_MARK,
 445                         "%s: Error releasing savepoint %s in transaction %s",
 446                         MODULENAME,
 447                         spName,
 448                         osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )
 449                 );
 450                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error releasing savepoint" );
 451                 return -1;
 452         } else {
 453                 jsonObject* ret = jsonNewObject(spName);
 454                 osrfAppRespondComplete( ctx, ret );
 455                 jsonObjectFree(ret);
 456         }
 457         return 0;
 458 }
 459
 460 int rollbackSavepoint ( osrfMethodContext* ctx ) {
 461         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 462
 463         char* spName = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
 464
 465         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 466                 osrfAppSessionStatus(
 467                         ctx->session,
 468                         OSRF_STATUS_INTERNALSERVERERROR,
 469                         "osrfMethodException",
 470                         ctx->request,
 471                         "No active transaction -- required for savepoints"
 472                 );
 473                 return -1;
 474         }
 475
 476         dbi_result result = dbi_conn_queryf(writehandle, "ROLLBACK TO SAVEPOINT \"%s\";", spName);
 477         if (!result) {
 478                 osrfLogError(
 479                         OSRF_LOG_MARK,
 480                         "%s: Error rolling back savepoint %s in transaction %s",
 481                         MODULENAME,
 482                         spName,
 483                         osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )
 484                 );
 485                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error rolling back savepoint" );
 486                 return -1;
 487         } else {
 488                 jsonObject* ret = jsonNewObject(spName);
 489                 osrfAppRespondComplete( ctx, ret );
 490                 jsonObjectFree(ret);
 491         }
 492         return 0;
 493 }
 494
 495 int commitTransaction ( osrfMethodContext* ctx ) {
 496         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 497
 498         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 499                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "No active transaction to commit" );
 500                 return -1;
 501         }
 502
 503         dbi_result result = dbi_conn_query(writehandle, "COMMIT;");
 504         if (!result) {
 505                 osrfLogError(OSRF_LOG_MARK, "%s: Error committing transaction", MODULENAME );
 506                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error committing transaction" );
 507                 return -1;
 508         } else {
 509                 osrfHashRemove(ctx->session->userData, "xact_id");
 510                 jsonObject* ret = jsonNewObject(ctx->session->session_id);
 511                 osrfAppRespondComplete( ctx, ret );
 512                 jsonObjectFree(ret);
 513         }
 514         return 0;
 515 }
 516
 517 int rollbackTransaction ( osrfMethodContext* ctx ) {
 518         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 519
 520         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 521                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "No active transaction to roll back" );
 522                 return -1;
 523         }
 524
 525         dbi_result result = dbi_conn_query(writehandle, "ROLLBACK;");
 526         if (!result) {
 527                 osrfLogError(OSRF_LOG_MARK, "%s: Error rolling back transaction", MODULENAME );
 528                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_INTERNALSERVERERROR, "osrfMethodException", ctx->request, "Error rolling back transaction" );
 529                 return -1;
 530         } else {
 531                 osrfHashRemove(ctx->session->userData, "xact_id");
 532                 jsonObject* ret = jsonNewObject(ctx->session->session_id);
 533                 osrfAppRespondComplete( ctx, ret );
 534                 jsonObjectFree(ret);
 535         }
 536         return 0;
 537 }
 538
 539 int dispatchCRUDMethod ( osrfMethodContext* ctx ) {
 540         OSRF_METHOD_VERIFY_CONTEXT(ctx);
 541
 542         osrfHash* meta = (osrfHash*) ctx->method->userData;
 543         osrfHash* class_obj = osrfHashGet( meta, "class" );
 544
 545         int err = 0;
 546
 547         jsonObject * obj = NULL;
 548         if (!strcmp( (char*)osrfHashGet(meta, "methodtype"), "create"))
 549                 obj = doCreate(ctx, &err);
 550
 551         if (!strcmp( (char*)osrfHashGet(meta, "methodtype"), "retrieve"))
 552                 obj = doRetrieve(ctx, &err);
 553
 554         if (!strcmp( (char*)osrfHashGet(meta, "methodtype"), "update"))
 555                 obj = doUpdate(ctx, &err);
 556
 557         if (!strcmp( (char*)osrfHashGet(meta, "methodtype"), "delete"))
 558                 obj = doDelete(ctx, &err);
 559
 560         if (!strcmp( (char*)osrfHashGet(meta, "methodtype"), "search")) {
 561
 562                 obj = doSearch(ctx, class_obj, ctx->params, &err);
 563                 if(err) return err;
 564
 565                 jsonObjectNode* cur;
 566                 jsonObjectIterator* itr = jsonNewObjectIterator( obj );
 567                 while ((cur = jsonObjectIteratorNext( itr ))) {
 568                         osrfAppRespond( ctx, jsonObjectClone(cur->item) );
 569                 }
 570                 jsonObjectIteratorFree(itr);
 571                 osrfAppRespondComplete( ctx, NULL );
 572
 573         } else if (!strcmp( (char*)osrfHashGet(meta, "methodtype"), "id_list")) {
 574
 575                 jsonObject* _p = jsonObjectClone( ctx->params );
 576                 if (jsonObjectGetIndex( _p, 1 )) {
 577                         jsonObjectRemoveKey( jsonObjectGetIndex( _p, 1 ), "flesh" );
 578                         jsonObjectRemoveKey( jsonObjectGetIndex( _p, 1 ), "flesh_columns" );
 579                 } else {
 580                         jsonObjectSetIndex( _p, 1, jsonParseString("{}") );
 581                 }
 582
 583                 growing_buffer* sel_list = buffer_init(16);
 584                 buffer_fadd(sel_list, "{ \"%s\":[\"%s\"] }", osrfHashGet( class_obj, "classname" ), osrfHashGet( class_obj, "primarykey" ));
 585                 char* _s = buffer_data(sel_list);
 586                 buffer_free(sel_list);
 587
 588                 jsonObjectSetKey( jsonObjectGetIndex( _p, 1 ), "select", jsonParseString(_s) );
 589                 osrfLogDebug(OSRF_LOG_MARK, "%s: Select qualifer set to [%s]", MODULENAME, _s);
 590                 free(_s);
 591
 592                 obj = doSearch(ctx, class_obj, _p, &err);
 593                 if(err) return err;
 594
 595                 jsonObjectNode* cur;
 596                 jsonObjectIterator* itr = jsonNewObjectIterator( obj );
 597                 while ((cur = jsonObjectIteratorNext( itr ))) {
 598                         osrfAppRespond(
 599                                 ctx,
 600                                 jsonObjectClone(
 601                                         jsonObjectGetIndex(
 602                                                 cur->item,
 603                                                 atoi(
 604                                                         osrfHashGet(
 605                                                                 osrfHashGet(
 606                                                                         osrfHashGet( class_obj, "fields" ),
 607                                                                         osrfHashGet( class_obj, "primarykey")
 608                                                                 ),
 609                                                                 "array_position"
 610                                                         )
 611                                                 )
 612                                         )
 613                                 )
 614                         );
 615                 }
 616                 jsonObjectIteratorFree(itr);
 617                 osrfAppRespondComplete( ctx, NULL );
 618
 619         } else {
 620                 osrfAppRespondComplete( ctx, obj );
 621         }
 622
 623         jsonObjectFree(obj);
 624
 625         return err;
 626 }
 627
 628 int verifyObjectClass ( osrfMethodContext* ctx, jsonObject* param ) {
 629
 630         osrfHash* meta = (osrfHash*) ctx->method->userData;
 631         osrfHash* class = osrfHashGet( meta, "class" );
 632
 633         if ((strcmp( osrfHashGet(class, "classname"), param->classname ))) {
 634
 635                 growing_buffer* msg = buffer_init(128);
 636                 buffer_fadd(
 637                         msg,
 638                         "%s: %s method for type %s was passed a %s",
 639                         MODULENAME,
 640                         osrfHashGet(meta, "methodtype"),
 641                         osrfHashGet(class, "classname"),
 642                         param->classname
 643                 );
 644
 645                 char* m = buffer_data(msg);
 646                 osrfAppSessionStatus( ctx->session, OSRF_STATUS_BADREQUEST, "osrfMethodException", ctx->request, m );
 647
 648                 buffer_free(msg);
 649                 free(m);
 650
 651                 return 0;
 652         }
 653         return 1;
 654 }
 655
 656 jsonObject* doCreate(osrfMethodContext* ctx, int* err ) {
 657
 658         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
 659         jsonObject* target = jsonObjectGetIndex( ctx->params, 0 );
 660         jsonObject* options = jsonObjectGetIndex( ctx->params, 1 );
 661
 662         if (!verifyObjectClass(ctx, target)) {
 663                 *err = -1;
 664                 return jsonNULL;
 665         }
 666
 667         osrfLogDebug( OSRF_LOG_MARK, "Object seems to be of the correct type" );
 668
 669         if (!ctx->session || !ctx->session->userData || !osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
 670                 osrfLogError( OSRF_LOG_MARK, "No active transaction -- required for CREATE" );
 671
 672                 osrfAppSessionStatus(
 673                         ctx->session,
 674                         OSRF_STATUS_BADREQUEST,
 675                         "osrfMethodException",
 676                         ctx->request,
 677                         "No active transaction -- required for CREATE"
 678                 );
 679                 *err = -1;
 680                 return jsonNULL;
 681         }
 682
 683         char* trans_id = osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" );
 684
 685         // Set the last_xact_id
 686         osrfHash* last_xact_id;
 687         if ((last_xact_id = oilsIDLFindPath("/%s/fields/last_xact_id", target->classname))) {
 688                 int index = atoi( osrfHashGet(last_xact_id, "array_position") );
 689                 osrfLogDebug(OSRF_LOG_MARK, "Setting last_xact_id to %s on %s at position %d", trans_id, target->classname, index);
 690                 jsonObjectSetIndex(target, index, jsonNewObject(trans_id));
 691         }
 692
 693         osrfLogDebug( OSRF_LOG_MARK, "There is a transaction running..." );
 694
 695         dbhandle = writehandle;
 696
 697         osrfHash* fields = osrfHashGet(meta, "fields");
 698         char* pkey = osrfHashGet(meta, "primarykey");
 699         char* seq = osrfHashGet(meta, "sequence");
 700
 701         growing_buffer* table_buf = buffer_init(128);
 702         growing_buffer* col_buf = buffer_init(128);
 703         growing_buffer* val_buf = buffer_init(128);
 704
 705         buffer_fadd(table_buf,"INSERT INTO %s", osrfHashGet(meta, "tablename"));
 706         buffer_add(col_buf,"(");
 707         buffer_add(val_buf,"VALUES (");
 708
 709
 710         int i = 0;
 711         int first = 1;
 712         char* field_name;
 713         osrfStringArray* field_list = osrfHashKeys( fields );
 714         while ( (field_name = osrfStringArrayGetString(field_list, i++)) ) {
 715
 716                 osrfHash* field = osrfHashGet( fields, field_name );
 717
 718                 if(!( strcmp( osrfHashGet(osrfHashGet(fields,field_name), "virtual"), "true" ) )) continue;
 719
 720                 jsonObject* field_object = jsonObjectGetIndex( target, atoi(osrfHashGet(field, "array_position")) );
 721
 722                 char* value;
 723                 if (field_object && field_object->classname) {
 724                         value = jsonObjectToSimpleString(
 725                                         jsonObjectGetIndex(
 726                                                 field_object,
 727                                                 atoi(
 728                                                         osrfHashGet(
 729                                                                 osrfHashGet(
 730                                                                         oilsIDLFindPath("/%s/fields", field_object->classname),
 731                                                                         (char*)oilsIDLFindPath("/%s/primarykey", field_object->classname)
 732                                                                 ),
 733                                                                 "array_position"
 734                                                         )
 735                                                 )
 736                                         )
 737                                 );
 738
 739                 } else {
 740                         value = jsonObjectToSimpleString( field_object );
 741                 }
 742
 743
 744                 if (first) {
 745                         first = 0;
 746                 } else {
 747                         buffer_add(col_buf, ",");
 748                         buffer_add(val_buf, ",");
 749                 }
 750
 751                 buffer_add(col_buf, field_name);
 752
 753                 if (!field_object || field_object->type == JSON_NULL) {
 754                         buffer_add( val_buf, "DEFAULT" );
 755
 756                 } else if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
 757                         if ( !strcmp(osrfHashGet(field, "datatype"), "INT8") ) {
 758                                 buffer_fadd( val_buf, "%lld", atol(value) );
 759
 760                         } else if ( !strcmp(osrfHashGet(field, "datatype"), "INT") ) {
 761                                 buffer_fadd( val_buf, "%ld", atoll(value) );
 762
 763                         } else if ( !strcmp(osrfHashGet(field, "datatype"), "NUMERIC") ) {
 764                                 buffer_fadd( val_buf, "%f", atof(value) );
 765                         }
 766                 } else {
 767                         if ( dbi_conn_quote_string(writehandle, &value) ) {
 768                                 buffer_fadd( val_buf, "%s", value );
 769
 770                         } else {
 771                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting string [%s]", MODULENAME, value);
 772                                 osrfAppSessionStatus(
 773                                         ctx->session,
 774                                         OSRF_STATUS_INTERNALSERVERERROR,
 775                                         "osrfMethodException",
 776                                         ctx->request,
 777                                         "Error quoting string -- please see the error log for more details"
 778                                 );
 779                                 free(value);
 780                                 buffer_free(table_buf);
 781                                 buffer_free(col_buf);
 782                                 buffer_free(val_buf);
 783                                 *err = -1;
 784                                 return jsonNULL;
 785                         }
 786                 }
 787
 788                 free(value);
 789
 790         }
 791
 792
 793         buffer_add(col_buf,")");
 794         buffer_add(val_buf,")");
 795
 796         growing_buffer* sql = buffer_init(128);
 797         buffer_fadd(
 798                 sql,
 799                 "%s %s %s;",
 800                 buffer_data(table_buf),
 801                 buffer_data(col_buf),
 802                 buffer_data(val_buf)
 803         );
 804         buffer_free(table_buf);
 805         buffer_free(col_buf);
 806         buffer_free(val_buf);
 807
 808         char* query = buffer_data(sql);
 809         buffer_free(sql);
 810
 811         osrfLogDebug(OSRF_LOG_MARK, "%s: Insert SQL [%s]", MODULENAME, query);
 812
 813
 814         dbi_result result = dbi_conn_query(writehandle, query);
 815
 816         jsonObject* obj = NULL;
 817
 818         if (!result) {
 819                 obj = jsonNewObject(NULL);
 820                 osrfLogError(
 821                         OSRF_LOG_MARK,
 822                         "%s ERROR inserting %s object using query [%s]",
 823                         MODULENAME,
 824                         osrfHashGet(meta, "fieldmapper"),
 825                         query
 826                 );
 827                 osrfAppSessionStatus(
 828                         ctx->session,
 829                         OSRF_STATUS_INTERNALSERVERERROR,
 830                         "osrfMethodException",
 831                         ctx->request,
 832                         "INSERT error -- please see the error log for more details"
 833                 );
 834                 *err = -1;
 835         } else {
 836
 837                 int pos = atoi(osrfHashGet( osrfHashGet(fields, pkey), "array_position" ));
 838                 char* id = jsonObjectToSimpleString(jsonObjectGetIndex(target, pos));
 839                 if (!id) {
 840                         unsigned long long new_id = dbi_conn_sequence_last(writehandle, seq);
 841                         growing_buffer* _id = buffer_init(10);
 842                         buffer_fadd(_id, "%lld", new_id);
 843                         id = buffer_data(_id);
 844                         buffer_free(_id);
 845                 }
 846
 847                 if (    !options
 848                         || !jsonObjectGetKey( options, "quiet")
 849                         || strcmp( jsonObjectToSimpleString(jsonObjectGetKey( options, "quiet")), "true" )
 850                 ) {
 851
 852                         jsonObject* fake_params = jsonParseString("[]");
 853                         jsonObjectPush(fake_params, jsonParseString("{}"));
 854
 855                         jsonObjectSetKey(
 856                                 jsonObjectGetIndex(fake_params, 0),
 857                                 osrfHashGet(meta, "primarykey"),
 858                                 jsonNewObject(id)
 859                         );
 860
 861                         jsonObject* list = doSearch( ctx,meta, fake_params, err);
 862
 863                         if(*err) {
 864                                 jsonObjectFree( fake_params );
 865                                 obj = jsonNULL;
 866                         } else {
 867                                 obj = jsonObjectClone( jsonObjectGetIndex(list, 0) );
 868                         }
 869
 870                         jsonObjectFree( list );
 871                         jsonObjectFree( fake_params );
 872
 873                 } else {
 874                         obj = jsonNewObject(id);
 875                 }
 876
 877         }
 878
 879         free(query);
 880
 881         return obj;
 882
 883 }
 884
 885
 886 jsonObject* doRetrieve(osrfMethodContext* ctx, int* err ) {
 887
 888         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
 889
 890         jsonObject* obj;
 891
 892         char* id = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
 893         jsonObject* order_hash = jsonObjectGetIndex(ctx->params, 1);
 894
 895         osrfLogDebug(
 896                 OSRF_LOG_MARK,
 897                 "%s retrieving %s object with id %s",
 898                 MODULENAME,
 899                 osrfHashGet(meta, "fieldmapper"),
 900                 id
 901         );
 902
 903         jsonObject* fake_params = jsonParseString("[]");
 904         jsonObjectPush(fake_params, jsonParseString("{}"));
 905
 906         jsonObjectSetKey(
 907                 jsonObjectGetIndex(fake_params, 0),
 908                 osrfHashGet(meta, "primarykey"),
 909                 jsonParseString(id)
 910         );
 911
 912         if (order_hash) jsonObjectPush(fake_params, jsonObjectClone(order_hash) );
 913
 914         jsonObject* list = doSearch( ctx,meta, fake_params, err);
 915
 916         if(*err) {
 917                 jsonObjectFree( fake_params );
 918                 return jsonNULL;
 919         }
 920
 921         obj = jsonObjectClone( jsonObjectGetIndex(list, 0) );
 922
 923         jsonObjectFree( list );
 924         jsonObjectFree( fake_params );
 925
 926         return obj;
 927 }
 928
 929 char* jsonNumberToDBString ( osrfHash* field, jsonObject* value ) {
 930         growing_buffer* val_buf = buffer_init(32);
 931
 932         if ( !strncmp(osrfHashGet(field, "datatype"), "INT", 3) ) {
 933                 if (value->type == JSON_NUMBER) buffer_fadd( val_buf, "%ld", (long)jsonObjectGetNumber(value) );
 934                 else buffer_fadd( val_buf, "%ld", atol(jsonObjectToSimpleString(value)) );
 935
 936         } else if ( !strcmp(osrfHashGet(field, "datatype"), "NUMERIC") ) {
 937                 if (value->type == JSON_NUMBER) buffer_fadd( val_buf, "%f",  jsonObjectGetNumber(value) );
 938                 else buffer_fadd( val_buf, "%f", atof(jsonObjectToSimpleString(value)) );
 939         }
 940
 941         char* pred = buffer_data(val_buf);
 942         buffer_free(val_buf);
 943
 944         return pred;
 945 }
 946
 947 char* searchINPredicate (osrfHash* field, jsonObject* node, const char* op) {
 948         growing_buffer* sql_buf = buffer_init(32);
 949
 950         buffer_fadd(
 951                 sql_buf,
 952                 "%s ",
 953                 osrfHashGet(field, "name")
 954         );
 955
 956         if (!op) {
 957                 buffer_add(sql_buf, "IN (");
 958         } else if (!(strcasecmp(op,"not in"))) {
 959                 buffer_add(sql_buf, "NOT IN (");
 960         } else {
 961                 buffer_add(sql_buf, "IN (");
 962         }
 963
 964         int in_item_index = 0;
 965         int in_item_first = 1;
 966         jsonObject* in_item;
 967         while ( (in_item = jsonObjectGetIndex(node, in_item_index++)) ) {
 968
 969                 if (in_item_first)
 970                         in_item_first = 0;
 971                 else
 972                         buffer_add(sql_buf, ", ");
 973
 974                 if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
 975                         char* val = jsonNumberToDBString( field, in_item );
 976                         buffer_fadd( sql_buf, "%s", val );
 977                         free(val);
 978
 979                 } else {
 980                         char* key_string = jsonObjectToSimpleString(in_item);
 981                         if ( dbi_conn_quote_string(dbhandle, &key_string) ) {
 982                                 buffer_fadd( sql_buf, "%s", key_string );
 983                                 free(key_string);
 984                         } else {
 985                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, key_string);
 986                                 free(key_string);
 987                                 buffer_free(sql_buf);
 988                                 return NULL;
 989                         }
 990                 }
 991         }
 992
 993         buffer_add(
 994                 sql_buf,
 995                 ")"
 996         );
 997
 998         char* pred = buffer_data(sql_buf);
 999         buffer_free(sql_buf);
1000
1001         return pred;
1002 }
1003
1004 char* searchValueTransform( jsonObject* array ) {
1005         growing_buffer* sql_buf = buffer_init(32);
1006
1007         char* val = NULL;
1008         int func_item_index = 0;
1009         int func_item_first = 2;
1010         jsonObject* func_item;
1011         while ( (func_item = jsonObjectGetIndex(array, func_item_index++)) ) {
1012
1013                 val = jsonObjectToSimpleString(func_item);
1014
1015                 if (func_item_first == 2) {
1016                         buffer_fadd(sql_buf, "%s( ", val);
1017                         free(val);
1018                         func_item_first--;
1019                         continue;
1020                 }
1021
1022                 if (func_item_first)
1023                         func_item_first--;
1024                 else
1025                         buffer_add(sql_buf, ", ");
1026
1027                 if ( dbi_conn_quote_string(dbhandle, &val) ) {
1028                         buffer_fadd( sql_buf, "%s", val );
1029                         free(val);
1030                 } else {
1031                         osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, val);
1032                         free(val);
1033                         buffer_free(sql_buf);
1034                         return NULL;
1035                 }
1036         }
1037
1038         buffer_add(
1039                 sql_buf,
1040                 " )"
1041         );
1042
1043         char* pred = buffer_data(sql_buf);
1044         buffer_free(sql_buf);
1045
1046         return pred;
1047 }
1048
1049 char* searchFunctionPredicate (osrfHash* field, jsonObjectNode* node) {
1050         growing_buffer* sql_buf = buffer_init(32);
1051
1052         char* val = searchValueTransform(node->item);
1053
1054         buffer_fadd(
1055                 sql_buf,
1056                 "%s %s %s",
1057                 osrfHashGet(field, "name"),
1058                 node->key,
1059                 val
1060         );
1061
1062         char* pred = buffer_data(sql_buf);
1063         buffer_free(sql_buf);
1064         free(val);
1065
1066         return pred;
1067 }
1068
1069 char* searchFieldTransform (osrfHash* field, jsonObject* node) {
1070         growing_buffer* sql_buf = buffer_init(32);
1071
1072         char* field_transform = jsonObjectToSimpleString( jsonObjectGetKey( node, "transform" ) );
1073
1074         buffer_fadd(
1075                 sql_buf,
1076                 "%s(%s)",
1077                 field_transform,
1078                 osrfHashGet(field, "name")
1079         );
1080
1081         char* pred = buffer_data(sql_buf);
1082         buffer_free(sql_buf);
1083         free(field_transform);
1084
1085         return pred;
1086 }
1087
1088 char* searchFieldTransformPredicate (osrfHash* field, jsonObjectNode* node) {
1089         growing_buffer* sql_buf = buffer_init(32);
1090
1091         char* field_transform = searchFieldTransform( field, node->item );
1092         char* value = NULL;
1093
1094         if (jsonObjectGetKey( node->item, "value" )->type == JSON_ARRAY) {
1095                 value = searchValueTransform(jsonObjectGetKey( node->item, "value" ));
1096         } else if (jsonObjectGetKey( node->item, "value" )->type != JSON_NULL) {
1097                 if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1098                         value = jsonNumberToDBString( field, jsonObjectGetKey( node->item, "value" ) );
1099                 } else {
1100                         value = jsonObjectToSimpleString(jsonObjectGetKey( node->item, "value" ));
1101                         if ( !dbi_conn_quote_string(dbhandle, &value) ) {
1102                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, value);
1103                                 free(value);
1104                                 return NULL;
1105                         }
1106                 }
1107         }
1108
1109         buffer_fadd(
1110                 sql_buf,
1111                 "%s %s %s",
1112                 field_transform,
1113                 node->key,
1114                 value
1115         );
1116
1117         char* pred = buffer_data(sql_buf);
1118         buffer_free(sql_buf);
1119         free(field_transform);
1120
1121         return pred;
1122 }
1123
1124 char* searchSimplePredicate (const char* orig_op, osrfHash* field, jsonObject* node) {
1125
1126         char* val = NULL;
1127
1128         if (node->type != JSON_NULL) {
1129                 if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1130                         val = jsonNumberToDBString( field, node );
1131                 } else {
1132                         val = jsonObjectToSimpleString(node);
1133                 }
1134         }
1135
1136         char* pred = searchWriteSimplePredicate( field, osrfHashGet(field, "name"), orig_op, val );
1137
1138         if (val) free(val);
1139
1140         return pred;
1141 }
1142
1143 char* searchWriteSimplePredicate ( osrfHash* field, const char* left, const char* orig_op, const char* right ) {
1144
1145         char* val = NULL;
1146         char* op = NULL;
1147         if (right == NULL) {
1148                 val = strdup("NULL");
1149
1150                 if (strcmp( orig_op, "=" ))
1151                         op = strdup("IS NOT");
1152                 else
1153                         op = strdup("IS");
1154
1155         } else if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1156                 val = strdup(right);
1157                 op = strdup(orig_op);
1158
1159         } else {
1160                 val = strdup(right);
1161                 if ( !dbi_conn_quote_string(dbhandle, &val) ) {
1162                         osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key string [%s]", MODULENAME, val);
1163                         free(val);
1164                         return NULL;
1165                 }
1166                 op = strdup(orig_op);
1167         }
1168
1169         growing_buffer* sql_buf = buffer_init(16);
1170         buffer_fadd( sql_buf, "%s %s %s", left, op, val );
1171         free(val);
1172         free(op);
1173
1174         char* pred = buffer_data(sql_buf);
1175         buffer_free(sql_buf);
1176
1177         return pred;
1178
1179 }
1180
1181 char* searchBETWEENPredicate (osrfHash* field, jsonObject* node) {
1182
1183         char* x_string;
1184         char* y_string;
1185
1186         if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1187                 x_string = jsonNumberToDBString(field, jsonObjectGetIndex(node,0));
1188                 y_string = jsonNumberToDBString(field, jsonObjectGetIndex(node,1));
1189
1190         } else {
1191                 x_string = jsonObjectToSimpleString(jsonObjectGetIndex(node,0));
1192                 y_string = jsonObjectToSimpleString(jsonObjectGetIndex(node,1));
1193                 if ( !(dbi_conn_quote_string(dbhandle, &x_string) && dbi_conn_quote_string(dbhandle, &y_string)) ) {
1194                         osrfLogError(OSRF_LOG_MARK, "%s: Error quoting key strings [%s] and [%s]", MODULENAME, x_string, y_string);
1195                         free(x_string);
1196                         free(y_string);
1197                         return NULL;
1198                 }
1199         }
1200
1201         growing_buffer* sql_buf = buffer_init(32);
1202         buffer_fadd( sql_buf, "%s BETWEEN %s AND %s", osrfHashGet(field, "name"), x_string, y_string );
1203         free(x_string);
1204         free(y_string);
1205
1206         char* pred = buffer_data(sql_buf);
1207         buffer_free(sql_buf);
1208
1209         return pred;
1210 }
1211
1212 char* searchPredicate ( osrfHash* field, jsonObject* node ) {
1213
1214         char* pred = NULL;
1215         if (node->type == JSON_ARRAY) { // equality IN search
1216                 pred = searchINPredicate( field, node, NULL );
1217         } else if (node->type == JSON_HASH) { // non-equality search
1218                 jsonObjectNode* pred_node;
1219                 jsonObjectIterator* pred_itr = jsonNewObjectIterator( node );
1220                 while ( (pred_node = jsonObjectIteratorNext( pred_itr )) ) {
1221                         if ( !(strcasecmp( pred_node->key,"between" )) )
1222                                 pred = searchBETWEENPredicate( field, pred_node->item );
1223                         else if ( !(strcasecmp( pred_node->key,"in" )) || !(strcasecmp( pred_node->key,"not in" )) )
1224                                 pred = searchINPredicate( field, pred_node->item, pred_node->key );
1225                         else if ( pred_node->item->type == JSON_ARRAY )
1226                                 pred = searchFunctionPredicate( field, pred_node );
1227                         else if ( pred_node->item->type == JSON_HASH )
1228                                 pred = searchFieldTransformPredicate( field, pred_node );
1229                         else
1230                                 pred = searchSimplePredicate( pred_node->key, field, pred_node->item );
1231
1232                         break;
1233                 }
1234         } else if (node->type == JSON_NULL) { // IS NULL search
1235                 growing_buffer* _p = buffer_init(16);
1236                 buffer_fadd(
1237                         _p,
1238                         "%s IS NULL",
1239                         osrfHashGet(field, "name")
1240                 );
1241                 pred = buffer_data(_p);
1242                 buffer_free(_p);
1243         } else { // equality search
1244                 pred = searchSimplePredicate( "=", field, node );
1245         }
1246
1247         return pred;
1248
1249 }
1250
1251
1252 /*
1253
1254 join_filter : {
1255         acn : {
1256                 field : record,
1257                 fkey : id
1258                 type : left
1259                 filter : { ... },
1260                 join_filter : {
1261                         acp : {
1262                                 field : call_number,
1263                                 fkey : id,
1264                                 filter : { ... },
1265                         },
1266                 },
1267         },
1268         mrd : {
1269                 field : record,
1270                 type : inner
1271                 fkey : id,
1272                 filter : { ... },
1273         }
1274 }
1275
1276 */
1277
1278 char* searchJOIN ( osrfHash* leftmeta, jsonObject* join_hash ) {
1279
1280         char* leftclass = osrfHashGet(leftmeta, "classname");
1281
1282         growing_buffer* join_buf = buffer_init(128);
1283
1284         jsonObjectIterator* search_itr = jsonNewObjectIterator( join_hash );
1285         while ( (node = jsonObjectIteratorNext( search_itr )) ) {
1286                 osrfHash* idlClass = osrfHashGet( idl, snode->key );
1287                 osrfHash* fields = osrfHashGet(idlClass, "fields");
1288
1289                 char* class = osrfHashGet(idlClass, "classname");
1290                 char* table = osrfHashGet(idlClass, "tablename")
1291
1292                 char* type = jsonObjectGetKey( snode->value, "type" );
1293                 char* fkey = jsonObjectGetKey( snode->value, "fkey" );
1294                 char* field = jsonObjectGetKey( snode->value, "field" );
1295
1296                 jsonObject* filter = jsonObjectGetKey( snode->value, "filter" );
1297                 jsonObject* join_filter = jsonObjectGetKey( snode->value, "join_filter" );
1298
1299                 if (type) {
1300                         if ( !strcasecmp(type,"left") ) {
1301                                 buffer_add(join_buf, " LEFT JOIN");
1302                         } else if ( !strcasecmp(type,"else") ) {
1303                                 buffer_add(join_buf, " LEFT JOIN");
1304                         } else {
1305                                 buffer_add(join_buf, " INNER JOIN");
1306                         }
1307                 } else {
1308                         buffer_add(join_buf, " INNER JOIN");
1309                 }
1310
1311                 buffer_fadd(join_buf, " \"%s\" AS %s ON ( \"%s\".%s = \"%s\".%s");
1312
1313                 if (join_filter) {
1314                         char* jpred = searchWHERE( join_filter, idlClass, 0 );
1315                         buffer_fadd( join_buf, "AND %s", jpred );
1316                         free(subpred);
1317                 }
1318
1319                 buffer_add(join_buf, " ) ");
1320
1321         }
1322
1323         char* join = buffer_data(join_buf);
1324         buffer_free(join_buf);
1325
1326         return join;
1327 }
1328
1329 /*
1330
1331 { -or|-and : { field : { op : value }, ... }, ... }
1332
1333 */
1334 char* searchWHERE ( jsonObject* search_hash, osrfHash* fields, int opjoin_type ) {
1335
1336         growing_buffer* sql_buf = buffer_init(128);
1337
1338         char opjoin[6] = " AND \0";
1339         if (opjoin_type == 1) " OR  \0";
1340
1341         first = 1;
1342         jsonObjectIterator* search_itr = jsonNewObjectIterator( search_hash );
1343         while ( (node = jsonObjectIteratorNext( search_itr )) ) {
1344
1345                 if ( !strcasecmp("-or",node->key) ) {
1346                         char* subpred = searchWHERE( node->value, fields, 1);
1347                         buffer_fadd(sql_buf, "( %s )", subpred);
1348                         free(subpred);
1349                 } else if ( !strcasecmp("-and",node->key) ) {
1350                         char* subpred = searchWHERE( node->value, fields, 0);
1351                         buffer_fadd(sql_buf, "( %s )", subpred);
1352                         free(subpred);
1353                 } else {
1354
1355                         osrfHash* field = osrfHashGet( fields, node->key );
1356
1357                         if (!field) {
1358                                 osrfLogError(
1359                                         OSRF_LOG_MARK,
1360                                         "%s: Attempt to reference non-existant column %s on table %s",
1361                                         MODULENAME,
1362                                         node->key,
1363                                         osrfHashGet(meta, "tablename")
1364                                 );
1365                                 osrfAppSessionStatus(
1366                                         ctx->session,
1367                                         OSRF_STATUS_INTERNALSERVERERROR,
1368                                         "osrfMethodException",
1369                                         ctx->request,
1370                                         "Severe query error -- see error log for more details"
1371                                 );
1372                                 buffer_free(sql_buf);
1373                                 return NULL;
1374                         }
1375
1376                         if (first) {
1377                                 first = 0;
1378                         } else {
1379                                 buffer_add(sql_buf, opjoin);
1380                         }
1381
1382                         char* subpred = searchPredicate( field, node->item);
1383                         buffer_fadd( sql_buf, "%s", subpred );
1384                         free(subpred);
1385                 }
1386         }
1387
1388         jsonObjectIteratorFree(search_itr);
1389
1390         char* pred = buffer_data(sql_buf);
1391         buffer_free(sql_buf);
1392
1393         return pred;
1394 }
1395
1396 char* buildSELECT ( jsonObject* search_hash, jsonObject* order_hash, osrfHash* meta, osrfMethodContext* ctx ) {
1397
1398         osrfHash* fields = osrfHashGet(meta, "fields");
1399         char* core_class = osrfHashGet(meta, "classname");
1400         char* pkey = osrfHashGet(meta, "primarykey");
1401         jsonObject* join_hash = jsonObjectGetKey( order_hash, "join" );
1402
1403         jsonObjectNode* node = NULL;
1404         jsonObjectNode* snode = NULL;
1405         jsonObject* _tmp;
1406
1407         growing_buffer* sql_buf = buffer_init(128);
1408
1409         buffer_fadd(sql_buf, "SELECT DISTINCT ON (\"%s\".%s) ", core_class, pkey);
1410
1411         int first = 1;
1412         if ( (_tmp = jsonObjectGetKey( order_hash, "select" )) ) {
1413
1414                 jsonObjectIterator* class_itr = jsonNewObjectIterator( _tmp );
1415                 while ( (snode = jsonObjectIteratorNext( class_itr )) ) {
1416
1417                         osrfHash* idlClass = osrfHashGet( idl, snode->key );
1418                         if (!idlClass) continue;
1419                         char* cname = osrfHashGet(idlClass, "classname");
1420
1421                         if (strcmp(core_class,snode->key)) continue;
1422
1423                         jsonObjectIterator* select_itr = jsonNewObjectIterator( snode->item );
1424                         while ( (node = jsonObjectIteratorNext( select_itr )) ) {
1425                                 osrfHash* field = osrfHashGet( osrfHashGet( idlClass, "fields" ), jsonObjectToSimpleString(node->item) );
1426                                 char* fname = osrfHashGet(field, "name");
1427
1428                                 if (!field) continue;
1429
1430                                 if (first) {
1431                                         first = 0;
1432                                 } else {
1433                                         buffer_add(sql_buf, ",");
1434                                 }
1435
1436                                 buffer_fadd(sql_buf, " \"%s\".%s", cname, fname);
1437                         }
1438                 }
1439
1440                 if (first) buffer_add(sql_buf, " *");
1441
1442         } else {
1443                 buffer_add(sql_buf, " *");
1444         }
1445
1446         buffer_fadd(sql_buf, " FROM %s AS \"%s\"", osrfHashGet(meta, "tablename"), core_class );
1447
1448         if ( join_hash ) {
1449                 char* join_clause = searchJOIN( meta, join_hash );
1450                 buffer_add(sql_buf, " %s", join_clause);
1451                 free(join_clause);
1452         }
1453
1454         buffer_fadd(sql_buf, " WHERE ", osrfHashGet(meta, "tablename"), core_class );
1455
1456         char* pred = searchWHERE( search_hash, fields, 0 );
1457         buffer_add(sql_buf, pred);
1458         free(pred);
1459
1460         if (order_hash) {
1461                 char* string;
1462                 if ( (_tmp = jsonObjectGetKey( jsonObjectGetKey( order_hash, "order_by" ), core_class ) ) ){
1463                         string = jsonObjectToSimpleString(_tmp);
1464                         buffer_fadd(
1465                                 sql_buf,
1466                                 " ORDER BY %s",
1467                                 string
1468                         );
1469                         free(string);
1470                 }
1471
1472                 if ( (_tmp = jsonObjectGetKey( order_hash, "limit" )) ){
1473                         string = jsonObjectToSimpleString(_tmp);
1474                         buffer_fadd(
1475                                 sql_buf,
1476                                 " LIMIT %d",
1477                                 atoi(string)
1478                         );
1479                         free(string);
1480                 }
1481
1482                 _tmp = jsonObjectGetKey( order_hash, "offset" );
1483                 if (_tmp) {
1484                         string = jsonObjectToSimpleString(_tmp);
1485                         buffer_fadd(
1486                                 sql_buf,
1487                                 " OFFSET %d",
1488                                 atoi(string)
1489                         );
1490                         free(string);
1491                 }
1492         }
1493
1494         buffer_add(sql_buf, ";");
1495
1496         char* sql = buffer_data(sql_buf);
1497         buffer_free(sql_buf);
1498
1499         return sql;
1500 }
1501
1502 jsonObject* doSearch ( osrfMethodContext* ctx, osrfHash* meta, jsonObject* params, int* err ) {
1503
1504         // XXX for now...
1505         dbhandle = writehandle;
1506
1507         osrfHash* links = osrfHashGet(meta, "links");
1508         osrfHash* fields = osrfHashGet(meta, "fields");
1509         char* core_class = osrfHashGet(meta, "classname");
1510
1511         jsonObject* _tmp;
1512         jsonObject* obj;
1513         jsonObject* search_hash = jsonObjectGetIndex(params, 0);
1514         jsonObject* order_hash = jsonObjectGetIndex(params, 1);
1515
1516         char* sql = buildSELECT( search_hash, order_hash, meta, ctx );
1517         if (!sql) {
1518                 *err = -1;
1519                 return NULL;
1520         }
1521
1522         osrfLogDebug(OSRF_LOG_MARK, "%s SQL =  %s", MODULENAME, sql);
1523         dbi_result result = dbi_conn_query(dbhandle, sql);
1524
1525         jsonObject* res_list = jsonParseString("[]");
1526         if(result) {
1527                 osrfLogDebug(OSRF_LOG_MARK, "Query returned with no errors");
1528
1529                 if (dbi_result_first_row(result)) {
1530                         /* JSONify the result */
1531                         osrfLogDebug(OSRF_LOG_MARK, "Query returned at least one row");
1532                         do {
1533                                 obj = oilsMakeJSONFromResult( result, meta );
1534                                 jsonObjectPush(res_list, obj);
1535                         } while (dbi_result_next_row(result));
1536                 } else {
1537                         osrfLogDebug(OSRF_LOG_MARK, "%s returned no results for query %s", MODULENAME, sql);
1538                 }
1539
1540                 /* clean up the query */
1541                 dbi_result_free(result);
1542
1543         } else {
1544                 osrfLogError(OSRF_LOG_MARK, "%s: Error retrieving %s with query [%s]", MODULENAME, osrfHashGet(meta, "fieldmapper"), sql);
1545                 osrfAppSessionStatus(
1546                         ctx->session,
1547                         OSRF_STATUS_INTERNALSERVERERROR,
1548                         "osrfMethodException",
1549                         ctx->request,
1550                         "Severe query error -- see error log for more details"
1551                 );
1552                 *err = -1;
1553                 free(sql);
1554                 jsonObjectFree(res_list);
1555                 return jsonNULL;
1556
1557         }
1558
1559         free(sql);
1560
1561         if (res_list->size && order_hash) {
1562                 _tmp = jsonObjectGetKey( order_hash, "flesh" );
1563                 if (_tmp) {
1564                         int x = (int)jsonObjectGetNumber(_tmp);
1565
1566                         jsonObject* flesh_blob = NULL;
1567                         if ((flesh_blob = jsonObjectGetKey( order_hash, "flesh_fields" )) && x > 0) {
1568
1569                                 flesh_blob = jsonObjectClone( flesh_blob );
1570                                 jsonObject* flesh_fields = jsonObjectGetKey( flesh_blob, core_class );
1571
1572                                 osrfStringArray* link_fields = NULL;
1573
1574                                 if (flesh_fields) {
1575                                         if (flesh_fields->size == 1) {
1576                                                 char* _t = jsonObjectToSimpleString( jsonObjectGetIndex( flesh_fields, 0 ) );
1577                                                 if (!strcmp(_t,"*")) link_fields = osrfHashKeys( links );
1578                                                 free(_t);
1579                                         }
1580
1581                                         if (!link_fields) {
1582                                                 jsonObjectNode* _f;
1583                                                 link_fields = osrfNewStringArray(1);
1584                                                 jsonObjectIterator* _i = jsonNewObjectIterator( flesh_fields );
1585                                                 while ((_f = jsonObjectIteratorNext( _i ))) {
1586                                                         osrfStringArrayAdd( link_fields, jsonObjectToSimpleString( _f->item ) );
1587                                                 }
1588                                         }
1589                                 }
1590
1591                                 jsonObjectNode* cur;
1592                                 jsonObjectIterator* itr = jsonNewObjectIterator( res_list );
1593                                 while ((cur = jsonObjectIteratorNext( itr ))) {
1594
1595                                         int i = 0;
1596                                         char* link_field;
1597
1598                                         while ( (link_field = osrfStringArrayGetString(link_fields, i++)) ) {
1599
1600                                                 osrfLogDebug(OSRF_LOG_MARK, "Starting to flesh %s", link_field);
1601
1602                                                 osrfHash* kid_link = osrfHashGet(links, link_field);
1603                                                 if (!kid_link) continue;
1604
1605                                                 osrfHash* field = osrfHashGet(fields, link_field);
1606                                                 if (!field) continue;
1607
1608                                                 osrfHash* value_field = field;
1609
1610                                                 osrfHash* kid_idl = osrfHashGet(idl, osrfHashGet(kid_link, "class"));
1611                                                 if (!kid_idl) continue;
1612
1613                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "has_many" ))) { // has_many
1614                                                         value_field = osrfHashGet( fields, osrfHashGet(meta, "primarykey") );
1615                                                 }
1616
1617                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "might_have" ))) { // might_have
1618                                                         value_field = osrfHashGet( fields, osrfHashGet(meta, "primarykey") );
1619                                                 }
1620
1621                                                 osrfStringArray* link_map = osrfHashGet( kid_link, "map" );
1622
1623                                                 if (link_map->size > 0) {
1624                                                         jsonObject* _kid_key = jsonParseString("[]");
1625                                                         jsonObjectPush(
1626                                                                 _kid_key,
1627                                                                 jsonNewObject( osrfStringArrayGetString( link_map, 0 ) )
1628                                                         );
1629
1630                                                         jsonObjectSetKey(
1631                                                                 flesh_blob,
1632                                                                 osrfHashGet(kid_link, "class"),
1633                                                                 _kid_key
1634                                                         );
1635                                                 };
1636
1637                                                 osrfLogDebug(
1638                                                         OSRF_LOG_MARK,
1639                                                         "Link field: %s, remote class: %s, fkey: %s, reltype: %s",
1640                                                         osrfHashGet(kid_link, "field"),
1641                                                         osrfHashGet(kid_link, "class"),
1642                                                         osrfHashGet(kid_link, "key"),
1643                                                         osrfHashGet(kid_link, "reltype")
1644                                                 );
1645
1646                                                 jsonObject* fake_params = jsonParseString("[]");
1647                                                 jsonObjectPush(fake_params, jsonParseString("{}")); // search hash
1648                                                 jsonObjectPush(fake_params, jsonParseString("{}")); // order/flesh hash
1649
1650                                                 osrfLogDebug(OSRF_LOG_MARK, "Creating dummy params object...");
1651
1652                                                 char* search_key =
1653                                                 jsonObjectToSimpleString(
1654                                                         jsonObjectGetIndex(
1655                                                                 cur->item,
1656                                                                 atoi( osrfHashGet(value_field, "array_position") )
1657                                                         )
1658                                                 );
1659
1660                                                 if (!search_key) {
1661                                                         osrfLogDebug(OSRF_LOG_MARK, "Nothing to search for!");
1662                                                         continue;
1663                                                 }
1664
1665                                                 jsonObjectSetKey(
1666                                                         jsonObjectGetIndex(fake_params, 0),
1667                                                         osrfHashGet(kid_link, "key"),
1668                                                         jsonNewObject( search_key )
1669                                                 );
1670
1671                                                 free(search_key);
1672
1673
1674                                                 jsonObjectSetKey(
1675                                                         jsonObjectGetIndex(fake_params, 1),
1676                                                         "flesh",
1677                                                         jsonNewNumberObject( (double)(x - 1 + link_map->size) )
1678                                                 );
1679
1680                                                 if (flesh_blob)
1681                                                         jsonObjectSetKey( jsonObjectGetIndex(fake_params, 1), "flesh_fields", jsonObjectClone(flesh_blob) );
1682
1683                                                 if (jsonObjectGetKey(order_hash, "order_by")) {
1684                                                         jsonObjectSetKey(
1685                                                                 jsonObjectGetIndex(fake_params, 1),
1686                                                                 "order_by",
1687                                                                 jsonObjectClone(jsonObjectGetKey(order_hash, "order_by"))
1688                                                         );
1689                                                 }
1690
1691                                                 if (jsonObjectGetKey(order_hash, "select")) {
1692                                                         jsonObjectSetKey(
1693                                                                 jsonObjectGetIndex(fake_params, 1),
1694                                                                 "select",
1695                                                                 jsonObjectClone(jsonObjectGetKey(order_hash, "select"))
1696                                                         );
1697                                                 }
1698
1699                                                 jsonObject* kids = doSearch(ctx, kid_idl, fake_params, err);
1700
1701                                                 if(*err) {
1702                                                         jsonObjectFree( fake_params );
1703                                                         osrfStringArrayFree(link_fields);
1704                                                         jsonObjectIteratorFree(itr);
1705                                                         jsonObjectFree(res_list);
1706                                                         return jsonNULL;
1707                                                 }
1708
1709                                                 osrfLogDebug(OSRF_LOG_MARK, "Search for %s return %d linked objects", osrfHashGet(kid_link, "class"), kids->size);
1710
1711                                                 jsonObject* X = NULL;
1712                                                 if ( link_map->size > 0 && kids->size > 0 ) {
1713                                                         X = kids;
1714                                                         kids = jsonParseString("[]");
1715
1716                                                         jsonObjectNode* _k_node;
1717                                                         jsonObjectIterator* _k = jsonNewObjectIterator( X );
1718                                                         while ((_k_node = jsonObjectIteratorNext( _k ))) {
1719                                                                 jsonObjectPush(
1720                                                                         kids,
1721                                                                         jsonObjectClone(
1722                                                                                 jsonObjectGetIndex(
1723                                                                                         _k_node->item,
1724                                                                                         (unsigned long)atoi(
1725                                                                                                 osrfHashGet(
1726                                                                                                         osrfHashGet(
1727                                                                                                                 osrfHashGet(
1728                                                                                                                         osrfHashGet(
1729                                                                                                                                 idl,
1730                                                                                                                                 osrfHashGet(kid_link, "class")
1731                                                                                                                         ),
1732                                                                                                                         "fields"
1733                                                                                                                 ),
1734                                                                                                                 osrfStringArrayGetString( link_map, 0 )
1735                                                                                                         ),
1736                                                                                                         "array_position"
1737                                                                                                 )
1738                                                                                         )
1739                                                                                 )
1740                                                                         )
1741                                                                 );
1742                                                         }
1743                                                 }
1744
1745                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "has_a" )) || !(strcmp( osrfHashGet(kid_link, "reltype"), "might_have" ))) {
1746                                                         osrfLogDebug(OSRF_LOG_MARK, "Storing fleshed objects in %s", osrfHashGet(kid_link, "field"));
1747                                                         jsonObjectSetIndex(
1748                                                                 cur->item,
1749                                                                 (unsigned long)atoi( osrfHashGet( field, "array_position" ) ),
1750                                                                 jsonObjectClone( jsonObjectGetIndex(kids, 0) )
1751                                                         );
1752                                                 }
1753
1754                                                 if (!(strcmp( osrfHashGet(kid_link, "reltype"), "has_many" ))) { // has_many
1755                                                         osrfLogDebug(OSRF_LOG_MARK, "Storing fleshed objects in %s", osrfHashGet(kid_link, "field"));
1756                                                         jsonObjectSetIndex(
1757                                                                 cur->item,
1758                                                                 (unsigned long)atoi( osrfHashGet( field, "array_position" ) ),
1759                                                                 jsonObjectClone( kids )
1760                                                         );
1761                                                 }
1762
1763                                                 if (X) {
1764                                                         jsonObjectFree(kids);
1765                                                         kids = X;
1766                                                 }
1767
1768                                                 jsonObjectFree( kids );
1769                                                 jsonObjectFree( fake_params );
1770
1771                                                 osrfLogDebug(OSRF_LOG_MARK, "Fleshing of %s complete", osrfHashGet(kid_link, "field"));
1772                                                 osrfLogDebug(OSRF_LOG_MARK, "%s", jsonObjectToJSON(cur->item));
1773
1774                                         }
1775                                 }
1776                                 jsonObjectFree( flesh_blob );
1777                                 osrfStringArrayFree(link_fields);
1778                                 jsonObjectIteratorFree(itr);
1779                         }
1780                 }
1781         }
1782
1783         return res_list;
1784 }
1785
1786
1787 jsonObject* doUpdate(osrfMethodContext* ctx, int* err ) {
1788
1789         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
1790         jsonObject* target = jsonObjectGetIndex(ctx->params, 0);
1791
1792         if (!verifyObjectClass(ctx, target)) {
1793                 *err = -1;
1794                 return jsonNULL;
1795         }
1796
1797         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
1798                 osrfAppSessionStatus(
1799                         ctx->session,
1800                         OSRF_STATUS_BADREQUEST,
1801                         "osrfMethodException",
1802                         ctx->request,
1803                         "No active transaction -- required for UPDATE"
1804                 );
1805                 *err = -1;
1806                 return jsonNULL;
1807         }
1808
1809         dbhandle = writehandle;
1810
1811         char* trans_id = osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" );
1812
1813         // Set the last_xact_id
1814         osrfHash* last_xact_id;
1815         if ((last_xact_id = oilsIDLFindPath("/%s/fields/last_xact_id", target->classname))) {
1816                 int index = atoi( osrfHashGet(last_xact_id, "array_position") );
1817                 osrfLogDebug(OSRF_LOG_MARK, "Setting last_xact_id to %s on %s at position %d", trans_id, target->classname, index);
1818                 jsonObjectSetIndex(target, index, jsonNewObject(trans_id));
1819         }
1820
1821         char* pkey = osrfHashGet(meta, "primarykey");
1822         osrfHash* fields = osrfHashGet(meta, "fields");
1823
1824         char* id =
1825                 jsonObjectToSimpleString(
1826                         jsonObjectGetIndex(
1827                                 target,
1828                                 atoi( osrfHashGet( osrfHashGet( fields, pkey ), "array_position" ) )
1829                         )
1830                 );
1831
1832         osrfLogDebug(
1833                 OSRF_LOG_MARK,
1834                 "%s updating %s object with %s = %s",
1835                 MODULENAME,
1836                 osrfHashGet(meta, "fieldmapper"),
1837                 pkey,
1838                 id
1839         );
1840
1841         growing_buffer* sql = buffer_init(128);
1842         buffer_fadd(sql,"UPDATE %s SET", osrfHashGet(meta, "tablename"));
1843
1844         int i = 0;
1845         int first = 1;
1846         char* field_name;
1847         osrfStringArray* field_list = osrfHashKeys( fields );
1848         while ( (field_name = osrfStringArrayGetString(field_list, i++)) ) {
1849
1850                 osrfHash* field = osrfHashGet( fields, field_name );
1851
1852                 if(!( strcmp( field_name, pkey ) )) continue;
1853                 if(!( strcmp( osrfHashGet(osrfHashGet(fields,field_name), "virtual"), "true" ) )) continue;
1854
1855                 jsonObject* field_object = jsonObjectGetIndex( target, atoi(osrfHashGet(field, "array_position")) );
1856
1857                 char* value;
1858                 if (field_object && field_object->classname) {
1859                         value = jsonObjectToSimpleString(
1860                                         jsonObjectGetIndex(
1861                                                 field_object,
1862                                                 atoi(
1863                                                         osrfHashGet(
1864                                                                 osrfHashGet(
1865                                                                         oilsIDLFindPath("/%s/fields", field_object->classname),
1866                                                                         (char*)oilsIDLFindPath("/%s/primarykey", field_object->classname)
1867                                                                 ),
1868                                                                 "array_position"
1869                                                         )
1870                                                 )
1871                                         )
1872                                 );
1873
1874                 } else {
1875                         value = jsonObjectToSimpleString( field_object );
1876                 }
1877
1878                 osrfLogDebug( OSRF_LOG_MARK, "Updating %s object with %s = %s", osrfHashGet(meta, "fieldmapper"), field_name, value);
1879
1880                 if (!field_object || field_object->type == JSON_NULL) {
1881                         if ( !(!( strcmp( osrfHashGet(meta, "classname"), "au" ) ) && !( strcmp( field_name, "passwd" ) )) ) { // arg at the special case!
1882                                 if (first) first = 0;
1883                                 else buffer_add(sql, ",");
1884                                 buffer_fadd( sql, " %s = NULL", field_name );
1885                         }
1886
1887                 } else if ( !strcmp(osrfHashGet(field, "primitive"), "number") ) {
1888                         if (first) first = 0;
1889                         else buffer_add(sql, ",");
1890
1891                         if ( !strncmp(osrfHashGet(field, "datatype"), "INT", (size_t)3) ) {
1892                                 buffer_fadd( sql, " %s = %ld", field_name, atol(value) );
1893                         } else if ( !strcmp(osrfHashGet(field, "datatype"), "NUMERIC") ) {
1894                                 buffer_fadd( sql, " %s = %f", field_name, atof(value) );
1895                         }
1896
1897                         osrfLogDebug( OSRF_LOG_MARK, "%s is of type %s", field_name, osrfHashGet(field, "datatype"));
1898
1899                 } else {
1900                         if ( dbi_conn_quote_string(dbhandle, &value) ) {
1901                                 if (first) first = 0;
1902                                 else buffer_add(sql, ",");
1903                                 buffer_fadd( sql, " %s = %s", field_name, value );
1904
1905                         } else {
1906                                 osrfLogError(OSRF_LOG_MARK, "%s: Error quoting string [%s]", MODULENAME, value);
1907                                 osrfAppSessionStatus(
1908                                         ctx->session,
1909                                         OSRF_STATUS_INTERNALSERVERERROR,
1910                                         "osrfMethodException",
1911                                         ctx->request,
1912                                         "Error quoting string -- please see the error log for more details"
1913                                 );
1914                                 free(value);
1915                                 free(id);
1916                                 buffer_free(sql);
1917                                 *err = -1;
1918                                 return jsonNULL;
1919                         }
1920                 }
1921
1922                 free(value);
1923
1924         }
1925
1926         jsonObject* obj = jsonParseString(id);
1927
1928         if ( strcmp( osrfHashGet( osrfHashGet( osrfHashGet(meta, "fields"), pkey ), "primitive" ), "number" ) )
1929                 dbi_conn_quote_string(dbhandle, &id);
1930
1931         buffer_fadd( sql, " WHERE %s = %s;", pkey, id );
1932
1933         char* query = buffer_data(sql);
1934         buffer_free(sql);
1935
1936         osrfLogDebug(OSRF_LOG_MARK, "%s: Update SQL [%s]", MODULENAME, query);
1937
1938         dbi_result result = dbi_conn_query(dbhandle, query);
1939         free(query);
1940
1941         if (!result) {
1942                 jsonObjectFree(obj);
1943                 obj = jsonNewObject(NULL);
1944                 osrfLogError(
1945                         OSRF_LOG_MARK,
1946                         "%s ERROR updating %s object with %s = %s",
1947                         MODULENAME,
1948                         osrfHashGet(meta, "fieldmapper"),
1949                         pkey,
1950                         id
1951                 );
1952         }
1953
1954         free(id);
1955
1956         return obj;
1957 }
1958
1959 jsonObject* doDelete(osrfMethodContext* ctx, int* err ) {
1960
1961         osrfHash* meta = osrfHashGet( (osrfHash*) ctx->method->userData, "class" );
1962
1963         if (!osrfHashGet( (osrfHash*)ctx->session->userData, "xact_id" )) {
1964                 osrfAppSessionStatus(
1965                         ctx->session,
1966                         OSRF_STATUS_BADREQUEST,
1967                         "osrfMethodException",
1968                         ctx->request,
1969                         "No active transaction -- required for DELETE"
1970                 );
1971                 *err = -1;
1972                 return jsonNULL;
1973         }
1974
1975         dbhandle = writehandle;
1976
1977         jsonObject* obj;
1978
1979         char* pkey = osrfHashGet(meta, "primarykey");
1980
1981         char* id;
1982         if (jsonObjectGetIndex(ctx->params, 0)->classname) {
1983                 if (!verifyObjectClass(ctx, jsonObjectGetIndex( ctx->params, 0 ))) {
1984                         *err = -1;
1985                         return jsonNULL;
1986                 }
1987
1988                 id = jsonObjectToSimpleString(
1989                         jsonObjectGetIndex(
1990                                 jsonObjectGetIndex(ctx->params, 0),
1991                                 atoi( osrfHashGet( osrfHashGet( osrfHashGet(meta, "fields"), pkey ), "array_position") )
1992                         )
1993                 );
1994         } else {
1995                 id = jsonObjectToSimpleString(jsonObjectGetIndex(ctx->params, 0));
1996         }
1997
1998         osrfLogDebug(
1999                 OSRF_LOG_MARK,
2000                 "%s deleting %s object with %s = %s",
2001                 MODULENAME,
2002                 osrfHashGet(meta, "fieldmapper"),
2003                 pkey,
2004                 id
2005         );
2006
2007         obj = jsonParseString(id);
2008
2009         if ( strcmp( osrfHashGet( osrfHashGet( osrfHashGet(meta, "fields"), pkey ), "primitive" ), "number" ) )
2010                 dbi_conn_quote_string(writehandle, &id);
2011
2012         dbi_result result = dbi_conn_queryf(writehandle, "DELETE FROM %s WHERE %s = %s;", osrfHashGet(meta, "tablename"), pkey, id);
2013
2014         if (!result) {
2015                 jsonObjectFree(obj);
2016                 obj = jsonNewObject(NULL);
2017                 osrfLogError(
2018                         OSRF_LOG_MARK,
2019                         "%s ERROR deleting %s object with %s = %s",
2020                         MODULENAME,
2021                         osrfHashGet(meta, "fieldmapper"),
2022                         pkey,
2023                         id
2024                 );
2025         }
2026
2027         free(id);
2028
2029         return obj;
2030
2031 }
2032
2033
2034 jsonObject* oilsMakeJSONFromResult( dbi_result result, osrfHash* meta) {
2035         if(!(result && meta)) return jsonNULL;
2036
2037         jsonObject* object = jsonParseString("[]");
2038         jsonObjectSetClass(object, osrfHashGet(meta, "classname"));
2039
2040         osrfHash* fields = osrfHashGet(meta, "fields");
2041
2042         osrfLogInternal(OSRF_LOG_MARK, "Setting object class to %s ", object->classname);
2043
2044         osrfHash* _f;
2045         time_t _tmp_dt;
2046         char dt_string[256];
2047         struct tm gmdt;
2048
2049         int fmIndex;
2050         int columnIndex = 1;
2051         int attr;
2052         unsigned short type;
2053         const char* columnName;
2054
2055         /* cycle through the column list */
2056         while( (columnName = dbi_result_get_field_name(result, columnIndex++)) ) {
2057
2058                 osrfLogInternal(OSRF_LOG_MARK, "Looking for column named [%s]...", (char*)columnName);
2059
2060                 fmIndex = -1; // reset the position
2061
2062                 /* determine the field type and storage attributes */
2063                 type = dbi_result_get_field_type(result, columnName);
2064                 attr = dbi_result_get_field_attribs(result, columnName);
2065
2066                 /* fetch the fieldmapper index */
2067                 if( (_f = osrfHashGet(fields, (char*)columnName)) ) {
2068                         char* virt = (char*)osrfHashGet(_f, "virtual");
2069                         char* pos = (char*)osrfHashGet(_f, "array_position");
2070
2071                         if ( !virt || !pos || !(strcmp( virt, "true" )) ) continue;
2072
2073                         fmIndex = atoi( pos );
2074                         osrfLogInternal(OSRF_LOG_MARK, "... Found column at position [%s]...", pos);
2075                 } else {
2076                         continue;
2077                 }
2078
2079                 if (dbi_result_field_is_null(result, columnName)) {
2080                         jsonObjectSetIndex( object, fmIndex, jsonNewObject(NULL) );
2081                 } else {
2082
2083                         switch( type ) {
2084
2085                                 case DBI_TYPE_INTEGER :
2086
2087                                         if( attr & DBI_INTEGER_SIZE8 )
2088                                                 jsonObjectSetIndex( object, fmIndex,
2089                                                         jsonNewNumberObject(dbi_result_get_longlong(result, columnName)));
2090                                         else
2091                                                 jsonObjectSetIndex( object, fmIndex,
2092                                                         jsonNewNumberObject(dbi_result_get_long(result, columnName)));
2093
2094                                         break;
2095
2096                                 case DBI_TYPE_DECIMAL :
2097                                         jsonObjectSetIndex( object, fmIndex,
2098                                                         jsonNewNumberObject(dbi_result_get_double(result, columnName)));
2099                                         break;
2100
2101                                 case DBI_TYPE_STRING :
2102
2103
2104                                         jsonObjectSetIndex(
2105                                                 object,
2106                                                 fmIndex,
2107                                                 jsonNewObject( dbi_result_get_string(result, columnName) )
2108                                         );
2109
2110                                         break;
2111
2112                                 case DBI_TYPE_DATETIME :
2113
2114                                         memset(dt_string, '\0', 256);
2115                                         memset(&gmdt, '\0', sizeof(gmdt));
2116                                         memset(&_tmp_dt, '\0', sizeof(_tmp_dt));
2117
2118                                         _tmp_dt = dbi_result_get_datetime(result, columnName);
2119
2120                                         localtime_r( &_tmp_dt, &gmdt );
2121
2122                                         if (!(attr & DBI_DATETIME_DATE)) {
2123                                                 strftime(dt_string, 255, "%T", &gmdt);
2124                                         } else if (!(attr & DBI_DATETIME_TIME)) {
2125                                                 strftime(dt_string, 255, "%F", &gmdt);
2126                                         } else {
2127                                                 strftime(dt_string, 255, "%FT%T%z", &gmdt);
2128                                         }
2129
2130                                         jsonObjectSetIndex( object, fmIndex, jsonNewObject(dt_string) );
2131
2132                                         break;
2133
2134                                 case DBI_TYPE_BINARY :
2135                                         osrfLogError( OSRF_LOG_MARK,
2136                                                 "Can't do binary at column %s : index %d", columnName, columnIndex - 1);
2137                         }
2138                 }
2139         }
2140
2141         return object;
2142 }
2143