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