The Ecere SDK - sdk/blob - eda/drivers/sqlite/EDASQLite.ec

   1 #ifdef ECERE_STATIC
   2 public import static "ecere"
   3 public import static "EDA"
   4 #else
   5 public import "ecere"
   6 public import "EDA"
   7 #endif
   8
   9 #include "sqlite3.h"
  10
  11 static void UnusedFunction()
  12 {
  13    int a;
  14    a.OnGetString(0,0,0);
  15    a.OnFree();
  16    a.OnCopy(null);
  17    a.OnCompare(null);
  18    a.OnSaveEdit(null,0);
  19    a.OnEdit(null,null,0,0,0,0,0);
  20    a.OnDisplay(null,0,0,0,0,0,0);
  21    a.OnGetDataFromString(null);
  22    a.OnUnserialize(null);
  23    a.OnSerialize(null);
  24 }
  25
  26 default:
  27 extern int __ecereVMethodID_class_OnGetString;
  28 extern int __ecereVMethodID_class_OnGetDataFromString;
  29 extern int __ecereVMethodID_class_OnCompare;
  30 extern int __ecereVMethodID_class_OnSerialize;
  31 extern int __ecereVMethodID_class_OnUnserialize;
  32 extern int __ecereVMethodID_class_OnFree;
  33 private:
  34
  35 int CollationCompare(Class type, int count1, void * data1, int count2, void * data2)
  36 {
  37    if(type.type == normalClass || type.type ==  noHeadClass)
  38    {
  39       Instance inst1, inst2;
  40       int result;
  41       SerialBuffer buffer1 { size = count1, count = count1, buffer = data1 };
  42       SerialBuffer buffer2 { size = count2, count = count2, buffer = data2 };
  43
  44       type._vTbl[__ecereVMethodID_class_OnUnserialize](type, &inst1, buffer1);
  45       type._vTbl[__ecereVMethodID_class_OnUnserialize](type, &inst2, buffer2);
  46
  47       result = type._vTbl[__ecereVMethodID_class_OnCompare](type, inst1, inst2);
  48
  49       buffer1.buffer = null;
  50       buffer2.buffer = null;
  51       delete buffer1;
  52       delete buffer2;
  53       inst1.OnFree();
  54       inst2.OnFree();
  55       return result;
  56    }
  57    else if(type.type == structClass)
  58    {
  59       void * inst1, * inst2;
  60       int result;
  61       SerialBuffer buffer1 { size = count1, count = count1, buffer = data1 };
  62       SerialBuffer buffer2 { size = count2, count = count2, buffer = data2 };
  63
  64       inst1 = new0 byte[type.structSize];
  65       inst2 = new0 byte[type.structSize];
  66       type._vTbl[__ecereVMethodID_class_OnUnserialize](type, inst1, buffer1);
  67       type._vTbl[__ecereVMethodID_class_OnUnserialize](type, inst2, buffer2);
  68
  69       result = type._vTbl[__ecereVMethodID_class_OnCompare](type, inst1, inst2);
  70
  71       buffer1.buffer = null;
  72       buffer2.buffer = null;
  73       delete buffer1;
  74       delete buffer2;
  75       delete inst1;
  76       delete inst2;
  77       return result;
  78    }
  79    else
  80       return type._vTbl[__ecereVMethodID_class_OnCompare](type, data1, data2);
  81 }
  82
  83 class SQLiteDataSource : DataSourceDriver
  84 {
  85    class_property(name) = "SQLite";
  86    String path;
  87    OldList listDatabases;
  88    uint databasesCount;
  89
  90    String BuildLocator(DataSource ds)
  91    {
  92       return CopyString(ds.host);
  93    }
  94
  95    uint GetDatabasesCount()
  96    {
  97       return databasesCount;
  98    }
  99
 100    ~SQLiteDataSource()
 101    {
 102       delete path;
 103    }
 104
 105    bool Connect(const String locator)
 106    {
 107       delete path;
 108       path = CopyString(locator);
 109       // TODO, use user name and password for local security?
 110       // TODO, open ds in read or write mode
 111       if(FileExists(path))
 112       {
 113          int n = 0;
 114          FileListing listing { path, "sqlite" };
 115          databasesCount = 0;
 116          while(listing.Find())
 117             databasesCount++;
 118          return true;
 119       }
 120       return false;
 121    }
 122
 123    bool RenameDatabase(const String name, const String rename)
 124    {
 125       if(name && rename && path && FileExists(path))
 126       {
 127          String path;
 128          path = MakeDatabasePath(name);
 129          if(FileExists(path))
 130          {
 131             bool renamed;
 132             String repath;
 133             repath = MakeDatabasePath(rename);
 134             renamed = RenameFile(path, repath);
 135             delete path;
 136             delete repath;
 137             return renamed;
 138          }
 139          delete path;
 140       }
 141       return false;
 142    }
 143
 144    bool DeleteDatabase(const String name)
 145    {
 146       if(path && FileExists(path))
 147       {
 148          bool deleted;
 149          String path = MakeDatabasePath(name);
 150          deleted = DeleteFile(path);  // delete file seems to return true even if the file does not exist
 151          databasesCount--;
 152          delete path;
 153          return deleted;
 154       }
 155       return false;
 156    }
 157
 158    virtual String MakeDatabasePath(const String name)
 159    {
 160       if(name)
 161       {
 162          char build[MAX_LOCATION];
 163          strcpy(build, path ? path : "");
 164          PathCat(build, name);
 165          ChangeExtension(build, "sqlite", build);
 166          return CopyString(build);
 167       }
 168       return null;
 169    }
 170
 171    Database OpenDatabase(const String name, CreateOptions createOptions, DataSource ds)
 172    {
 173       Database result = null;
 174       if(name && name[0])
 175       {
 176          String path = MakeDatabasePath(name);
 177          sqlite3 * db;
 178
 179          // sqlite3_open(path, &db);
 180          // sqlite3_open_v2(path, &db, SQLITE_OPEN_READONLY /*SQLITE_OPEN_READWRITE*/ /*SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE*/, null );
 181
 182          if(sqlite3_open_v2(path, &db, (createOptions == readOnly) ? SQLITE_OPEN_READONLY :
 183             (SQLITE_OPEN_READWRITE | ((createOptions == create) ? SQLITE_OPEN_CREATE : 0)), null))
 184          {
 185             // fprintf(stderr, "%s\n", s); // interesting
 186             printf("EDASQLite: Can't open database (%s): %s\n", path, sqlite3_errmsg(db));
 187             sqlite3_close(db);
 188          }
 189          else
 190          {
 191             char command[1024];
 192             sprintf(command, "CREATE TABLE eda_table_fields(Table_Name TEXT, Name TEXT, Type TEXT, Length INT);");
 193             sqlite3_exec(db, command, null, null, null);
 194
 195             result = SQLiteDatabase { db = db };
 196          }
 197          delete path;
 198       }
 199       return result;
 200    }
 201 }
 202
 203 class SQLiteField : Field
 204 {
 205    char * name;
 206    Class type;
 207    int length;
 208    public LinkElement<SQLiteField> link;
 209    int num;
 210    int sqliteType;
 211
 212    ~SQLiteField()
 213    {
 214       delete name;
 215    }
 216
 217    String GetName()
 218    {
 219       return name;
 220    }
 221    Class GetType()
 222    {
 223       return type;
 224    }
 225    int GetLength() { return length; }
 226    Field GetPrev()
 227    {
 228       return link.prev;
 229    }
 230    Field GetNext()
 231    {
 232       return link.next;
 233    }
 234 }
 235
 236 class SQLiteDatabase : Database
 237 {
 238    sqlite3 * db;
 239    AVLTree<String> collations { };
 240
 241    ~SQLiteDatabase()
 242    {
 243       sqlite3_close(db);
 244    }
 245
 246    uint ObjectsCount(ObjectType type)
 247    {
 248       // TODO
 249       return 0;
 250    }
 251
 252    bool RenameObject(ObjectType type, const String name, const String rename)
 253    {
 254       // TODO
 255       return false;
 256    }
 257
 258    bool DeleteObject(ObjectType type, const String name)
 259    {
 260       // TODO
 261       return false;
 262    }
 263
 264    Table OpenTable(const String name, OpenOptions options)
 265    {
 266       char command[1024];
 267       int result;
 268       int nRows = 0, nCols = 0;
 269       char ** t;
 270       SQLiteTable table = null;
 271       if(options.type == tablesList)
 272       {
 273          SQLiteField field { name = CopyString("Name"), type = class(String), num = -1, sqliteType = SQLITE_TEXT };
 274          strcpy(command, "SELECT name FROM sqlite_master WHERE type='table' AND name!='eda_table_fields';");
 275          table = SQLiteTable { db = this, specialStatement = CopyString(command) };
 276          LinkTable(table);
 277          incref field;
 278          table.fields.Add(field);
 279       }
 280       else if(options.type == fieldsList)
 281       {
 282          SQLiteField field;
 283
 284          sprintf(command, "SELECT Name, Type, Length FROM eda_table_fields WHERE Table_Name='%s';", name);
 285          table = SQLiteTable { db = this, specialStatement = CopyString(command) };
 286          LinkTable(table);
 287          field = { name = CopyString("Name"), type = class(String), num = -1, sqliteType = SQLITE_TEXT };
 288          incref field;
 289          table.fields.Add(field);
 290          field = { name = CopyString("Type"), type = class(Class), num = 0, sqliteType = SQLITE_TEXT };
 291          incref field;
 292          table.fields.Add(field);
 293          field = { name = CopyString("Length"), type = class(int), num = 1, sqliteType = SQLITE_INTEGER };
 294          incref field;
 295          table.fields.Add(field);
 296       }
 297       else if(options.type == tableRows)
 298       {
 299          bool addFields = false;
 300
 301          sprintf(command, "SELECT Name FROM eda_table_fields WHERE Table_Name='%s';", name);
 302          result = sqlite3_get_table(db, command, &t, &nRows, &nCols, null);
 303          if(!nRows && !nCols)
 304             addFields = true;
 305
 306          sqlite3_free_table(t);
 307
 308          sprintf(command, "SELECT sql FROM sqlite_master WHERE type='table' AND name='%s';", name);
 309          nCols = 0, nRows = 0;
 310          result = sqlite3_get_table(db, command, &t, &nRows, &nCols, null);
 311
 312          if((nCols || nRows) || options.create)
 313          {
 314             table = SQLiteTable { db = this, name = CopyString(name) };
 315             LinkTable(table);
 316             if(!nCols && !nRows)
 317                table.mustCreate = true;
 318             else
 319             {
 320                if(addFields)
 321                {
 322                   int r;
 323                   for(r = 1; r <= nRows; r++)      // There should be only 1 row here
 324                   {
 325                      char * sql = t[nCols * r];
 326                      char * bracket = strchr(sql, '(');
 327                      if(bracket)
 328                      {
 329                         int c = 0;
 330                         bracket++;
 331                         while(true)
 332                         {
 333                            char ch;
 334                            char fieldName[256];
 335                            char dataType[256];
 336                            int d;
 337                            int start = c;
 338                            int sqliteType;
 339                            Class type = class(int);
 340                            fieldName[0] = 0;
 341                            dataType[0] = 0;
 342
 343                            while((ch = bracket[c++]))
 344                            {
 345                               if(ch == ',' || ch == ')')
 346                                  break;
 347                            }
 348                            for(d = c-1; d >= 0 && bracket[d] != ' '; d--);
 349
 350                            memcpy(fieldName, bracket + start, d - start);
 351                            fieldName[d - start] = 0;
 352
 353                            memcpy(dataType, bracket + d + 1, c - d - 2);
 354                            dataType[c - d - 2] = 0;
 355
 356                            while(ch && bracket[c] == ' ') c++;
 357
 358                            if(!strcmp(dataType, "REAL")) { sqliteType = SQLITE_FLOAT; type = class(double); }
 359                            else if(!strcmp(dataType, "TEXT")) { sqliteType = SQLITE_TEXT; type = class(String); }
 360                            else if(!strcmp(dataType, "INTEGER")) { sqliteType = SQLITE_INTEGER; type = class(int); }
 361                            else if(!strcmp(dataType, "BLOB")) { sqliteType = SQLITE_BLOB; type = class(char *); } //class(byte *);
 362
 363                            sprintf(command, "INSERT INTO eda_table_fields (Table_Name, Name, Type, Length) VALUES ('%s', '%s', '%s', %d);", name,
 364                               fieldName, type.name, 0);
 365                            result = sqlite3_exec(db, command, null, null, null);
 366
 367                            {
 368                               SQLiteField field { name = CopyString(fieldName), type = type, num = table.fields.count, sqliteType = sqliteType };
 369                               incref field;
 370                               table.fields.Add(field);
 371                            }
 372
 373                            if(!ch || ch == ')') break;
 374                         }
 375                      }
 376                   }
 377                }
 378                else
 379                {
 380                   sqlite3_stmt * statement;
 381
 382                   sprintf(command, "SELECT Name, Type, Length FROM eda_table_fields WHERE Table_Name='%s';", name);
 383                   result = sqlite3_prepare_v2(db, command, -1, &statement, null);
 384
 385                   while(sqlite3_step(statement) != SQLITE_DONE)
 386                   {
 387                      char * fieldName = sqlite3_column_text(statement, 0);
 388                      char * typeName = sqlite3_column_text(statement, 1);
 389                      int length = sqlite3_column_int(statement, 2);
 390                      Class type = null;
 391                      int sqliteType;
 392
 393                      ((Class)(&type)).OnGetDataFromString(typeName);    // TODO: THIS REQUIRES A FIX SOMEWHERE ELSE
 394
 395                      if(type)
 396                      {
 397                         if(!strcmp(type.dataTypeString, "int") || !strcmp(type.dataTypeString, "unsigned int") ||
 398                            !strcmp(type.dataTypeString, "long") || !strcmp(type.dataTypeString, "long int") ||
 399                            !strcmp(type.dataTypeString, "uint") || !strcmp(type.dataTypeString, "uint32") ||
 400                            !strcmp(type.dataTypeString, "int64") || !strcmp(type.dataTypeString, "unsigned int64") || !strcmp(type.dataTypeString, "uint64") ||
 401                            !strcmp(type.dataTypeString, "short") || !strcmp(type.dataTypeString, "unsigned short") || !strcmp(type.dataTypeString, "uint16") ||
 402                            !strcmp(type.dataTypeString, "char") || !strcmp(type.dataTypeString, "unsigned char") || !strcmp(type.dataTypeString, "byte"))
 403                            sqliteType = SQLITE_INTEGER;
 404                         else if(!strcmp(type.dataTypeString, "double") || !strcmp(type.dataTypeString, "float"))
 405                            sqliteType = SQLITE_FLOAT;
 406                         else if(!strcmp(type.dataTypeString, "String") || !strcmp(type.dataTypeString, "char *"))
 407                            sqliteType = SQLITE_TEXT;
 408                         else
 409                         {
 410                            if(strcmp(type.fullName, "CIString") && !collations.Find(type.fullName))
 411                            {
 412                               collations.Add(type.fullName);
 413                               sqlite3_create_collation_v2(table.db.db, type.fullName, SQLITE_UTF8, type, CollationCompare, null);
 414                            }
 415                            sqliteType = SQLITE_BLOB;
 416                         }
 417                      }
 418
 419                      {
 420                         SQLiteField field { name = CopyString(fieldName), type = type, length = length, num = table.fields.count, sqliteType = sqliteType };
 421                         incref field;
 422                         table.fields.Add(field);
 423                      }
 424                   }
 425                   sqlite3_finalize(statement);
 426                }
 427             }
 428          }
 429          sqlite3_free_table(t);
 430       }
 431       return (Table)table;
 432    }
 433
 434    bool Begin()
 435    {
 436       char command[1024];
 437       int result;
 438       sprintf(command, "BEGIN;");
 439       result = sqlite3_exec(db, command, null, null, null);
 440       if(result)
 441          PrintLn("BEGIN FAILED!");
 442       return result == SQLITE_OK;
 443    }
 444
 445    bool Commit()
 446    {
 447       char command[1024];
 448       int result;
 449       sprintf(command, "COMMIT;");
 450       result = sqlite3_exec(db, command, null, null, null);
 451       if(result)
 452          PrintLn("COMMIT FAILED!");
 453       return result == SQLITE_OK;
 454    }
 455
 456    bool CreateCustomFunction(char * name, SQLCustomFunction customFunction)
 457    {
 458       int result = sqlite3_create_function(db, name, 1, SQLITE_UTF8, customFunction, SQLiteFunctionProcessor, null, null);
 459       return result == SQLITE_OK;
 460    }
 461 }
 462
 463 void SQLiteFunctionProcessor(sqlite3_context* context, int n, sqlite3_value** value)
 464 {
 465    SQLCustomFunction sqlFunction = sqlite3_user_data(context);
 466    char * text = sqlite3_value_text(*value);
 467    sqlFunction.array.size = 1;
 468    sqlFunction.array[0] = 0;
 469    sqlFunction.Process(text);
 470    sqlite3_result_text(context, sqlFunction.array.array, sqlFunction.array.count ? sqlFunction.array.count - 1 : 0, SQLITE_TRANSIENT);
 471 }
 472
 473 class SQLiteTable : Table
 474 {
 475    char * name;
 476    bool mustCreate;
 477    SQLiteDatabase db;
 478    LinkList<SQLiteField> fields { };
 479    char * specialStatement;
 480    SQLiteField primaryKey;
 481    FieldIndex * indexFields;
 482    int indexFieldsCount;
 483    int64 lastID;
 484
 485    Field AddField(const String fieldName, Class type, int length)
 486    {
 487       SQLiteField field;
 488       char command[1024];
 489       char dataType[256];
 490       int sqliteType;
 491       int result;
 492       Table refTable = null;
 493       Field idField = null;
 494       command[0] = 0;
 495
 496       if(FindField(fieldName)) return null;
 497
 498       if(!strcmp(type.dataTypeString, "int") || !strcmp(type.dataTypeString, "unsigned int") ||
 499          !strcmp(type.dataTypeString, "long") || !strcmp(type.dataTypeString, "long int") ||
 500          !strcmp(type.dataTypeString, "uint") || !strcmp(type.dataTypeString, "uint32") ||
 501          !strcmp(type.dataTypeString, "int64") || !strcmp(type.dataTypeString, "unsigned int64") || !strcmp(type.dataTypeString, "uint64") ||
 502          !strcmp(type.dataTypeString, "short") || !strcmp(type.dataTypeString, "unsigned short") || !strcmp(type.dataTypeString, "uint16") ||
 503          !strcmp(type.dataTypeString, "char") || !strcmp(type.dataTypeString, "unsigned char") || !strcmp(type.dataTypeString, "byte"))
 504       {
 505          strcpy(dataType, "INTEGER");
 506          sqliteType = SQLITE_INTEGER;
 507       }
 508       else if(!strcmp(type.dataTypeString, "double") || !strcmp(type.dataTypeString, "float"))
 509       {
 510          strcpy(dataType, "REAL");
 511          sqliteType = SQLITE_FLOAT;
 512       }
 513       else if(!strcmp(type.name, "CIString"))
 514       {
 515          strcpy(dataType, "TEXT");
 516          sqliteType = SQLITE_BLOB;
 517       }
 518       else if(!strcmp(type.dataTypeString, "String") || !strcmp(type.dataTypeString, "char *"))
 519       {
 520          strcpy(dataType, "TEXT");
 521          sqliteType = SQLITE_TEXT;
 522       }
 523       else
 524       {
 525          //strcpy(dataType, "BLOB");
 526          strcpy(dataType, "TEXT");
 527          sqliteType = SQLITE_BLOB;
 528
 529          if(!db.collations.Find(type.fullName))
 530          {
 531             db.collations.Add(type.fullName);
 532             result = sqlite3_create_collation_v2(db.db, type.fullName, SQLITE_UTF8, type, CollationCompare, null);
 533          }
 534       }
 535       if(sqliteType != SQLITE_BLOB && eClass_IsDerived(type, class(eda::Id)))
 536       {
 537          Table * table = (Table *)eClass_GetProperty(type, "table");
 538          if(table) refTable = *table;
 539          if(refTable)
 540          {
 541             if(primaryKey || refTable != this)
 542             {
 543                for(idField = refTable.firstField; idField; idField = idField.next)
 544                   if(eClass_IsDerived(type, idField.type)) break;
 545
 546                if(!idField)
 547                   PrintLn("WARNING: field not yet created for class ", (String)type.name);
 548             }
 549             else
 550                idField = primaryKey;
 551          }
 552          else
 553          {
 554             PrintLn("WARNING: Table not yet created for class ", (String)type.name);
 555          }
 556       }
 557
 558       if(mustCreate)
 559       {
 560          if(sqliteType == SQLITE_BLOB)
 561          {
 562             if(!strcmp(type.name, "CIString"))
 563                sprintf(command, "CREATE TABLE `%s`(%s %s COLLATE NOCASE);", name, fieldName, dataType);
 564             else
 565                sprintf(command, "CREATE TABLE `%s`(%s %s COLLATE '%s');", name, fieldName, dataType, type.fullName);
 566          }
 567          else if(refTable)
 568          {
 569             if(!idField && refTable == this)
 570                sprintf(command, "CREATE TABLE `%s`(`%s` %s PRIMARY KEY);", name, fieldName, dataType);
 571             else if(idField)
 572                sprintf(command, "CREATE TABLE `%s`(`%s` %s REFERENCES `%s`(`%s`));", name, fieldName, dataType, refTable.name, idField.name);
 573          }
 574          else
 575             sprintf(command, "CREATE TABLE `%s`(`%s` %s);", name, fieldName, dataType);
 576          result = sqlite3_exec(db.db, command, null, null, null);
 577          if(result) return null;
 578          mustCreate = false;
 579       }
 580       else
 581       {
 582          if(sqliteType == SQLITE_BLOB)
 583          {
 584             if(!strcmp(type.name, "CIString"))
 585                sprintf(command, "ALTER TABLE `%s` ADD `%s` %s COLLATE NOCASE;", name, fieldName, dataType);
 586             else
 587                sprintf(command, "ALTER TABLE `%s` ADD `%s` %s COLLATE `%s`;", name, fieldName, dataType, type.fullName);
 588          }
 589          else if(refTable)
 590          {
 591             if(!idField && refTable == this)
 592             {
 593                PrintLn("WARNING: ALTER TABLE DOESN'T WORK WITH PRIMARY KEY FOR ", (String)name);
 594                sprintf(command, "ALTER TABLE `%s` ADD `%s` %s PRIMARY KEY;", name, fieldName, dataType);
 595             }
 596             else if(idField)
 597                sprintf(command, "ALTER TABLE `%s` ADD `%s` %s REFERENCES `%s`(`%s`);", name, fieldName, dataType, refTable.name, idField.name);
 598          }
 599          else
 600             sprintf(command, "ALTER TABLE `%s` ADD `%s` %s;", name, fieldName, dataType);
 601          result = sqlite3_exec(db.db, command, null, null, null);
 602          if(result) return null;
 603       }
 604
 605       sprintf(command, "INSERT INTO eda_table_fields (Table_Name, Name, Type, Length) VALUES ('%s', '%s', '%s', %d);", name,
 606          fieldName, type.name, length);
 607       result = sqlite3_exec(db.db, command, null, null, null);
 608
 609       field = { name = CopyString(fieldName), type = type, num = fields.count, sqliteType = sqliteType };
 610       incref field;
 611       fields.Add(field);
 612       if(!primaryKey && refTable == this)
 613          primaryKey = field;
 614       return (Field)field;
 615    }
 616
 617    Field FindField(const String name)
 618    {
 619       for(f : fields; !strcmp(f.name, name))
 620       {
 621          if(!primaryKey)
 622          {
 623             if(f.sqliteType != SQLITE_BLOB && eClass_IsDerived(f.type, class(eda::Id)))
 624             {
 625
 626                Table * tablePtr = (Table *)eClass_GetProperty(f.type, "table");
 627                if(tablePtr && *tablePtr == this)
 628                   primaryKey = f;
 629             }
 630          }
 631          return (Field)f;
 632       }
 633       return null;
 634    }
 635
 636    bool GenerateIndex(int count, FieldIndex * fieldIndexes, bool init)
 637    {
 638       char command[1024];
 639       int c;
 640       int result;
 641       char indexName[4096];
 642
 643       delete indexFields;
 644       indexFieldsCount = count;
 645       indexFields = new FieldIndex[count];
 646       memcpy(indexFields, fieldIndexes, count * sizeof(FieldIndex));
 647
 648       // TODO: USE CODED INDEX NAME INSTEAD?
 649       strcpy(indexName, "index_");
 650       strcat(indexName, name);
 651       strcat(indexName, "_");
 652       for(c = 0; c<count; c++)
 653       {
 654          if(fieldIndexes[c].field)
 655          {
 656             if(count == 1 && fieldIndexes[c].field == primaryKey)
 657                return true;
 658             strcat(indexName, fieldIndexes[c].field.name);
 659             if(fieldIndexes[c].memberField)
 660             {
 661                strcat(indexName, ".");
 662                strcat(indexName, fieldIndexes[c].memberField.name);
 663             }
 664             strcat(indexName, (fieldIndexes[c].order == ascending) ? "+" : "-");
 665          }
 666          else
 667             return false;
 668       }
 669
 670       sprintf(command, "CREATE INDEX IF NOT EXISTS `%s` ON `%s` (", indexName, name);
 671       for(c = 0; c<count; c++)
 672       {
 673          char columnName[1024];
 674          sprintf(columnName, "`%s` %s", fieldIndexes[c].field.name, (fieldIndexes[c].order == ascending) ? "ASC" : "DESC");
 675          if(c > 0) strcat(command, ", ");
 676          strcat(command, columnName);
 677       }
 678       strcat(command, ");");
 679       result = sqlite3_exec(db.db, command, null, null, null);
 680
 681       return result == SQLITE_OK;
 682    }
 683
 684    String GetName()
 685    {
 686       return name;
 687    }
 688
 689    Field GetFirstField()
 690    {
 691       return fields.first;
 692    }
 693
 694    uint GetFieldsCount()
 695    {
 696       return fields.count;
 697    }
 698
 699    uint GetRowsCount()
 700    {
 701       char command[1024];
 702       char **t;
 703       int nCols, nRows;
 704       int result;
 705       uint rowCount = 0;
 706       sprintf(command, "SELECT COUNT(*) FROM `%s`;", name);
 707       result = sqlite3_get_table(db.db, command, &t, &nRows, &nCols, null);
 708       if(result == SQLITE_OK)
 709       {
 710          rowCount = atoi(t[1]);
 711          sqlite3_free_table(t);
 712       }
 713       return rowCount;
 714    }
 715
 716    // Returns true if not ordered by row ID
 717    bool GetIndexOrder(char * fullOrder)
 718    {
 719       if(!indexFields || (indexFieldsCount == 1 && indexFields[0].field == primaryKey && indexFields[0].order == ascending))
 720       {
 721          strcpy(fullOrder, " ORDER BY ROWID");
 722          return false;
 723       }
 724       else
 725       {
 726          int c;
 727          strcpy(fullOrder, " ORDER BY ");
 728          for(c = 0; c < indexFieldsCount; c++)
 729          {
 730             char order[1024];
 731             FieldIndex * fIndex = &indexFields[c];
 732             order[0] = 0;
 733             if(c) strcat(order, ", ");
 734             strcat(order, "`");
 735             strcat(order, fIndex->field.name);
 736             strcat(order, "`");
 737             if(fIndex->order == descending) strcat(order, " DESC");
 738             strcat(fullOrder, order);
 739          }
 740          return true;
 741       }
 742    }
 743
 744    DriverRow CreateRow()
 745    {
 746       char command[1024];
 747       sqlite3_stmt * statement;
 748       sqlite3_stmt * sysIDStmt = null, * insertStmt = null, * deleteStmt = null, * selectRowIDsStmt = null, * setRowIDStmt = null;
 749       sqlite3_stmt * prevStmt = null, * nextStmt = null, * lastStmt = null, * insertIDStmt = null;
 750
 751       if(specialStatement)
 752          strcpy(command, specialStatement);
 753       else
 754       {
 755          char order[1024];
 756          /*sprintf(command, "SELECT ROWID, * FROM `%s` WHERE ? = ?;", name);
 757          sqlite3_prepare_v2(db.db, command, -1, &findStmt, null);*/
 758          sprintf(command, "SELECT ROWID, * FROM `%s` WHERE ROWID = ?;", name);
 759          sqlite3_prepare_v2(db.db, command, -1, &sysIDStmt, null);
 760
 761          sprintf(command, "INSERT INTO `%s` DEFAULT VALUES;", name);
 762          sqlite3_prepare_v2(db.db, command, -1, &insertStmt, null);
 763
 764          sprintf(command, "INSERT INTO `%s` (ROWID) VALUES(?);", name);
 765          sqlite3_prepare_v2(db.db, command, -1, &insertIDStmt, null);
 766
 767          sprintf(command, "DELETE FROM `%s` WHERE ROWID = ?;", name);
 768          sqlite3_prepare_v2(db.db, command, -1, &deleteStmt, null);
 769
 770          sprintf(command, "SELECT ROWID, * FROM `%s` WHERE ROWID < ? ORDER BY ROWID DESC LIMIT 1;", name);
 771          sqlite3_prepare_v2(db.db, command, -1, &prevStmt, null);
 772
 773          sprintf(command, "SELECT ROWID, * FROM `%s` WHERE ROWID > ? ORDER BY ROWID LIMIT 1;", name);
 774          sqlite3_prepare_v2(db.db, command, -1, &nextStmt, null);
 775
 776          sprintf(command, "SELECT MAX(ROWID), * FROM `%s`", name);
 777          sqlite3_prepare_v2(db.db, command, -1, &lastStmt, null);
 778
 779          /*sprintf(command, "UPDATE `%s` SET ? = ? WHERE ROWID = ?;", name);
 780
 781          sqlite3_prepare_v2(db.db, command, -1, &updateStmt, null);*/
 782
 783          GetIndexOrder(order);
 784          sprintf(command, "SELECT ROWID, * FROM `%s`%s;", name, order);
 785       }
 786       sqlite3_prepare_v2(db.db, command, -1, &statement, null);
 787
 788       sprintf(command, "SELECT ROWID FROM `%s` WHERE ROWID > ?", name);
 789       sqlite3_prepare_v2(db.db, command, -1, &selectRowIDsStmt, null);
 790
 791       sprintf(command, "UPDATE `%s` SET ROWID = ? WHERE ROWID = ?", name);
 792       sqlite3_prepare_v2(db.db, command, -1, &setRowIDStmt, null);
 793
 794       return SQLiteRow
 795          { tbl = this, defaultStatement = statement, curStatement = statement, sysIDStatement = sysIDStmt,
 796            insertStatement = insertStmt, deleteStatement = deleteStmt, selectRowIDsStmt = selectRowIDsStmt, setRowIDStmt = setRowIDStmt,
 797            previousStatement = prevStmt, nextStatement = nextStmt, lastStatement = lastStmt, insertIDStatement = insertIDStmt };
 798    }
 799
 800    ~SQLiteTable()
 801    {
 802       delete name;
 803       delete specialStatement;
 804       delete indexFields;
 805       fields.Free();
 806    }
 807 }
 808
 809 class SQLiteRow : DriverRow
 810 {
 811    SQLiteTable tbl;
 812    sqlite3_stmt * curStatement;
 813
 814    sqlite3_stmt * defaultStatement;
 815    sqlite3_stmt * findStatement;
 816    sqlite3_stmt * sysIDStatement;
 817    sqlite3_stmt * queryStatement;
 818    sqlite3_stmt * findMultipleStatement;
 819    sqlite3_stmt * selectRowIDsStmt;
 820    sqlite3_stmt * setRowIDStmt;
 821    sqlite3_stmt * lastStatement;
 822    sqlite3_stmt * previousStatement;
 823    sqlite3_stmt * nextStatement;
 824
 825    sqlite3_stmt * insertStatement;
 826    sqlite3_stmt * deleteStatement;
 827    sqlite3_stmt * updateStatement;
 828    sqlite3_stmt * insertIDStatement;
 829    bool done;
 830    done = true;
 831    int64 rowID;
 832
 833    bool Nil()
 834    {
 835       return done;
 836    }
 837
 838    ~SQLiteRow()
 839    {
 840       if(defaultStatement) sqlite3_finalize(defaultStatement);
 841       if(findStatement)    sqlite3_finalize(findStatement);
 842       if(findMultipleStatement)    sqlite3_finalize(findMultipleStatement);
 843       if(sysIDStatement)   sqlite3_finalize(sysIDStatement);
 844       if(insertStatement)  sqlite3_finalize(insertStatement);
 845       if(deleteStatement)  sqlite3_finalize(deleteStatement);
 846       if(updateStatement)  sqlite3_finalize(updateStatement);
 847       if(queryStatement)   sqlite3_finalize(queryStatement);
 848       if(selectRowIDsStmt) sqlite3_finalize(selectRowIDsStmt);
 849       if(setRowIDStmt)     sqlite3_finalize(setRowIDStmt);
 850       if(previousStatement)sqlite3_finalize(previousStatement);
 851       if(nextStatement)    sqlite3_finalize(nextStatement);
 852       if(lastStatement)    sqlite3_finalize(lastStatement);
 853       if(insertIDStatement)    sqlite3_finalize(insertIDStatement);
 854    }
 855
 856    bool Select(MoveOptions move)
 857    {
 858       int result;
 859       bool stepping = curStatement == previousStatement || curStatement == nextStatement || curStatement == lastStatement;
 860       if(!curStatement)
 861          curStatement = defaultStatement;
 862       switch(move)
 863       {
 864          case first:
 865          {
 866             sqlite3_reset(curStatement);
 867             result = sqlite3_step(curStatement);
 868             done = result == SQLITE_DONE || (result && result != SQLITE_ROW);
 869             if(done) { rowID = 0; sqlite3_reset(curStatement); return false; }
 870             rowID = sqlite3_column_int64(curStatement, 0);
 871             break;
 872          }
 873          case last:
 874          {
 875             sqlite3_reset(curStatement);
 876             curStatement = lastStatement;
 877             result = sqlite3_step(curStatement);
 878             done = result == SQLITE_DONE || (result && result != SQLITE_ROW);
 879             if(done) { rowID = 0; sqlite3_reset(curStatement); return false; }
 880             rowID = sqlite3_column_int64(curStatement, 0);
 881             break;
 882          }
 883          case middle:
 884             break;
 885          case next:
 886             if(!stepping)
 887             {
 888                result = sqlite3_step(curStatement);
 889                done = result == SQLITE_DONE || (result && result != SQLITE_ROW);
 890                if(done) { rowID = 0; sqlite3_reset(curStatement); return false; }
 891                rowID = sqlite3_column_int64(curStatement, 0);
 892                break;
 893             }
 894          case previous:
 895          {
 896             sqlite3_reset(curStatement);
 897             curStatement = (move == previous) ? (rowID ? previousStatement : lastStatement) : (rowID ? nextStatement : defaultStatement);
 898             sqlite3_bind_int64(curStatement, 1, (sqlite3_int64)rowID);
 899             result = sqlite3_step(curStatement);
 900             done = result == SQLITE_DONE || (result && result != SQLITE_ROW);
 901             if(done) { rowID = 0; sqlite3_reset(curStatement); return false; }
 902             rowID = sqlite3_column_int64(curStatement, 0);
 903             break;
 904          }
 905          case nil:
 906             sqlite3_reset(curStatement);
 907             rowID = 0;
 908             done = true;
 909             break;
 910          case here:
 911             break;
 912       }
 913       return true;
 914    }
 915
 916    bool Query(char * queryString)
 917    {
 918       bool status = true;
 919       int result;
 920
 921       if(curStatement)
 922          sqlite3_reset(curStatement);
 923       if(queryStatement)
 924       {
 925          sqlite3_finalize(queryStatement);
 926          queryStatement = null;
 927       }
 928
 929       if(queryString)
 930       {
 931          result = sqlite3_prepare_v2(tbl.db.db, queryString, -1, &queryStatement, null);
 932          curStatement = queryStatement;
 933          if(!strchr(queryString, '?'))
 934          {
 935             result = sqlite3_step(queryStatement);
 936
 937             done = result == SQLITE_DONE || (result && result != SQLITE_ROW);
 938             if(done) { rowID = 0; sqlite3_reset(queryStatement); return false; }
 939
 940             rowID = sqlite3_column_int64(queryStatement, 0);
 941          }
 942       }
 943       else
 944          curStatement = null;
 945       return status;
 946    }
 947
 948    void BindData(sqlite3_stmt * statement, int pos, SQLiteField fld, typed_object data, SerialBuffer * bufferOut)
 949    {
 950       Class dataType = fld.type;
 951       SerialBuffer buffer = null;
 952       switch(fld.sqliteType)
 953       {
 954          case SQLITE_INTEGER:
 955          {
 956             switch(dataType.typeSize)
 957             {
 958                case 8:
 959                   sqlite3_bind_int64(statement, pos, (sqlite3_int64)*(int64 *)data);
 960                   break;
 961                case 4:
 962                   sqlite3_bind_int(statement, pos, *(int *)data);
 963                   break;
 964                case 2:
 965                {
 966                   int value;
 967                   if((int)data < 0)
 968                      value = (int)*(short *)data;
 969                   else
 970                      value = (int)*(uint16 *)data;
 971                   sqlite3_bind_int(statement, pos, value);
 972                   break;
 973                }
 974                case 1:
 975                {
 976                   int value;
 977                   if((int)data < 0)
 978                      value = (int)*(char *)data;
 979                   else
 980                      value = (int)*(byte *)data;
 981                   sqlite3_bind_int(statement, pos, value);
 982                   break;
 983                }
 984             }
 985             break;
 986          }
 987          case SQLITE_FLOAT:
 988          {
 989             if(dataType.typeSize == 8)
 990                sqlite3_bind_double(statement, pos, *(double *)data);
 991             else
 992                sqlite3_bind_double(statement, pos, (double)*(float *)data);
 993             break;
 994          }
 995          case SQLITE_TEXT:
 996          {
 997             if((char *)data)
 998                sqlite3_bind_text(statement, pos, (char *)data, strlen((char *)data), SQLITE_TRANSIENT);
 999             else
1000                sqlite3_bind_text(statement, pos, null, 0, SQLITE_TRANSIENT);
1001             break;
1002          }
1003          case SQLITE_BLOB:
1004          case SQLITE_NULL:
1005          {
1006             buffer = SerialBuffer { };
1007             dataType._vTbl[__ecereVMethodID_class_OnSerialize](dataType, data, buffer);
1008             sqlite3_bind_text(statement, pos, buffer._buffer, buffer.count, SQLITE_TRANSIENT);
1009             break;
1010          }
1011       }
1012       if(bufferOut)
1013          *bufferOut = buffer;
1014       else
1015          delete buffer;
1016    }
1017
1018    void AddCursorWhereClauses(char * command, MoveOptions move, bool useIndex)
1019    {
1020       if(move == next)
1021       {
1022          // Where clauses for index
1023          if(useIndex)
1024          {
1025             int c;
1026             bool gotPrimaryKey = false;
1027
1028             strcatf(command, " AND (");
1029             for(c = 0; c < tbl.indexFieldsCount; c++)
1030             {
1031                char where[1024];
1032                FieldIndex * fIndex = &tbl.indexFields[c];
1033                where[0] = 0;
1034
1035                strcat(where, "`");
1036                strcat(where, fIndex->field.name);
1037                strcat(where, "` ");
1038                strcat(where, fIndex->order == descending ? "<" : ">");
1039                strcat(where, " ? OR (");
1040                strcat(where, fIndex->field.name);
1041                if(fIndex->field == tbl.primaryKey)
1042                   gotPrimaryKey = true;
1043                strcat(where, " = ? AND (");
1044                strcat(command, where);
1045             }
1046             strcat(command, gotPrimaryKey ? "1)" : "ROWID > ?)");
1047             for(; c > 0; c--)
1048                strcat(command, "))");
1049          }
1050          else
1051             strcatf(command, " AND ROWID > ?");
1052       }
1053    }
1054
1055    void BindCursorData(sqlite3_stmt * stmt, MoveOptions move, bool useIndex, int * bindId)
1056    {
1057       if(move == next)
1058       {
1059          // The binds for the Extra ordering Where clauses
1060          if(useIndex)
1061          {
1062             int c;
1063             for(c = 0; c < tbl.indexFieldsCount; c++)
1064             {
1065                FieldIndex * fIndex = &tbl.indexFields[c];
1066                int64 data;
1067                SQLiteField fld = (SQLiteField)fIndex->field;
1068                Class type = fld.type;
1069                void * dataPtr;
1070                SerialBuffer buffer;
1071
1072                if(type.type == unitClass && !type.typeSize)
1073                {
1074                   Class dataType = eSystem_FindClass(type.module, type.dataTypeString);
1075                   if(dataType)
1076                      type = dataType;
1077                }
1078                if(type.type == structClass)
1079                {
1080                   data = (int64)new0 byte[type.structSize];
1081                   dataPtr = (void *) data;
1082                }
1083                ((bool (*)())(void *)this.GetData)(this, fld, type, (type.type == structClass) ? (void *)data : &data);
1084                if(type.type == normalClass || type.type == noHeadClass)
1085                   dataPtr = (void *) data;
1086                else
1087                   dataPtr = &data;
1088                ((void (*)())(void *)this.BindData)(this, stmt, (*bindId)++, fld, type, dataPtr, &buffer);
1089                // Reuse the buffer for Blobs...
1090                if(fld.sqliteType == SQLITE_BLOB || fld.sqliteType == SQLITE_NULL)
1091                {
1092                   sqlite3_bind_text(stmt, (*bindId)++, buffer._buffer, buffer.count, SQLITE_TRANSIENT);
1093                   delete buffer;
1094                }
1095                else
1096                   ((void (*)())(void *)this.BindData)(this, stmt, (*bindId)++, fld, type, dataPtr, null);
1097
1098                type._vTbl[__ecereVMethodID_class_OnFree](type, dataPtr);
1099             }
1100          }
1101
1102          // Bind for the rowid
1103          sqlite3_bind_int64(stmt, (*bindId)++, (sqlite3_int64)rowID);
1104       }
1105    }
1106
1107    bool Find(Field fld, MoveOptions move, MatchOptions match, typed_object data)
1108    {
1109       char order[1024], command[2048];
1110       int result;
1111       bool useIndex;
1112       sqlite3_stmt * stmt = null;
1113       int bindId = 1;
1114
1115       if(fld == tbl.primaryKey)
1116       {
1117          return GoToSysID(*(int *)data);
1118       }
1119
1120       sprintf(command, "SELECT ROWID, * FROM `%s` WHERE ", tbl.name);
1121       strcatf(command, "`%s` = ?", fld.name);
1122       useIndex = tbl.GetIndexOrder(order);
1123       AddCursorWhereClauses(command, move, useIndex);
1124       strcat(command, order);
1125       strcat(command, ";");
1126
1127       result = sqlite3_prepare_v2(tbl.db.db, command, -1, &stmt, null);
1128
1129       BindData(stmt, bindId++, (SQLiteField)fld, data, null);
1130       BindCursorData(stmt, move, useIndex, &bindId);
1131
1132       if(curStatement)
1133          sqlite3_reset(curStatement);
1134       if(findStatement)
1135          sqlite3_finalize(findStatement);
1136       curStatement = findStatement = stmt;
1137
1138       result = sqlite3_step(findStatement);
1139
1140       done = result == SQLITE_DONE || (result && result != SQLITE_ROW);
1141       if(done)
1142       {
1143          rowID = 0;
1144          sqlite3_reset(findStatement);
1145       }
1146       else
1147          rowID = sqlite3_column_int64(findStatement, 0);
1148       return !done;
1149    }
1150
1151    bool FindMultiple(FieldFindData * findData, MoveOptions move, int numFields)
1152    {
1153       if(numFields)
1154       {
1155          char command[4096], order[1024];
1156          int result;
1157          int c;
1158          bool useIndex;
1159          sqlite3_stmt * stmt = null;
1160          int bindId = 1;
1161
1162          sprintf(command, "SELECT ROWID, * FROM `%s` WHERE `", tbl.name);
1163          for(c = 0; c < numFields; c++)
1164          {
1165             FieldFindData * fieldFind = &findData[c];
1166
1167             if(c) strcat(command, " AND `");
1168             strcat(command, fieldFind->field.name);
1169             strcat(command, "` = ?");
1170          }
1171
1172          useIndex = tbl.GetIndexOrder(order);
1173          AddCursorWhereClauses(command, move, useIndex);
1174          strcat(command, order);
1175          strcat(command, ";");
1176
1177          result = sqlite3_prepare_v2(tbl.db.db, command, -1, &stmt, null);
1178
1179          for(c = 0; c < numFields; c++)
1180          {
1181             FieldFindData * fieldFind = &findData[c];
1182             SQLiteField sqlFld = (SQLiteField)findData->field;
1183             Class dataType = sqlFld.type;
1184             BindData(stmt, bindId++, sqlFld, (dataType.type == structClass || dataType.type == noHeadClass || dataType.type == normalClass) ? fieldFind->value.p : &fieldFind->value.i, null);
1185          }
1186          BindCursorData(stmt, move, useIndex, &bindId);
1187
1188          if(curStatement)
1189             sqlite3_reset(curStatement);
1190          if(findMultipleStatement)
1191             sqlite3_finalize(findMultipleStatement);
1192
1193          curStatement = findMultipleStatement = stmt;
1194
1195          result = sqlite3_step(findMultipleStatement);
1196          done = result == SQLITE_DONE || (result && result != SQLITE_ROW);
1197          if(done)
1198          {
1199             rowID = 0;
1200             sqlite3_reset(findMultipleStatement);
1201          }
1202          else
1203             rowID = sqlite3_column_int64(findMultipleStatement, 0);
1204          return !done;
1205       }
1206       return false;
1207    }
1208
1209    bool Synch(DriverRow to)
1210    {
1211       SQLiteRow rowTo = (SQLiteRow)to;
1212       if(tbl && rowTo.tbl && !strcmp(tbl.name, rowTo.tbl.name))
1213          return GoToSysID((uint)rowTo.rowID);
1214       return false;
1215    }
1216
1217    bool Add(uint64 id)
1218    {
1219       int result;
1220       //char command[1024];
1221       //sprintf(command, "INSERT INTO `%s` DEFAULT VALUES;", tbl.name);
1222       //result = sqlite3_exec(tbl.db.db, command, null, null, null);
1223       if(id)
1224       {
1225          sqlite3_bind_int64(insertIDStatement, 1, (sqlite3_int64)id);
1226          result = sqlite3_step(insertIDStatement);
1227       }
1228       else
1229          result = sqlite3_step(insertStatement);
1230       if(result == SQLITE_DONE)     // if(result == SQLITE_OK)
1231       {
1232          rowID = sqlite3_last_insert_rowid(tbl.db.db);
1233          if(rowID > MAXDWORD)
1234          {
1235             int64 lastID = tbl.lastID;
1236
1237             sqlite3_bind_int64(selectRowIDsStmt, 1, (sqlite3_int64)lastID);
1238             while(true)
1239             {
1240                int64 id;
1241                result = sqlite3_step(selectRowIDsStmt);
1242                if(result == SQLITE_DONE || result != SQLITE_ROW) break;
1243                id = sqlite3_column_int64(selectRowIDsStmt, 0);
1244                if(id - lastID > 1) break;
1245                lastID = id;
1246             }
1247             sqlite3_reset(selectRowIDsStmt);
1248
1249             sqlite3_bind_int64(setRowIDStmt, 2, (sqlite3_int64)rowID);
1250             rowID = lastID + 1;
1251             tbl.lastID = rowID;
1252             sqlite3_bind_int64(setRowIDStmt, 1, (sqlite3_int64)rowID);
1253             result = sqlite3_step(setRowIDStmt);
1254             sqlite3_reset(setRowIDStmt);
1255          }
1256          sqlite3_reset(id ? insertIDStatement : insertStatement);
1257          curStatement = sysIDStatement;
1258          sqlite3_reset(curStatement);
1259          sqlite3_bind_int64(sysIDStatement, 1, (sqlite3_int64)rowID);
1260          result = sqlite3_step(curStatement);
1261          return true;
1262       }
1263       sqlite3_reset(insertStatement);
1264       return false;
1265    }
1266
1267    bool Delete()
1268    {
1269       int result;
1270       //char command[1024];
1271       //sprintf(command, "DELETE FROM `%s` WHERE ROWID = %d;", tbl.name, rowID);
1272       //result = sqlite3_exec(tbl.db.db, command, null, null, null);
1273       sqlite3_bind_int64(deleteStatement, 1, (sqlite3_int64)rowID);
1274       result = sqlite3_step(deleteStatement);
1275       sqlite3_reset(deleteStatement);
1276       rowID = 0;
1277       return result == SQLITE_OK || result == SQLITE_DONE;
1278    }
1279
1280    bool GetData(Field fld, typed_object &data)
1281    {
1282       SQLiteField sqlFld = (SQLiteField)fld;
1283       int num = sqlFld.num + 1;
1284       Class dataType = sqlFld.type;
1285
1286
1287       switch(sqlFld.sqliteType)
1288       {
1289          case SQLITE_INTEGER:
1290          {
1291             switch(dataType.typeSize)
1292             {
1293                case 8:
1294                   if(fld == tbl.primaryKey)
1295                      *(int64 *)data = rowID;
1296                   else
1297                      *(int64 *)data = sqlite3_column_int64(curStatement, num);
1298                   break;
1299                case 4:
1300                   if(fld == tbl.primaryKey)
1301                      *(int *)data = (int)(uint)rowID;
1302                   else
1303                      *(int *)data = sqlite3_column_int(curStatement, num);
1304                   break;
1305                case 2:
1306                {
1307                   int value;
1308                   if(fld == tbl.primaryKey)
1309                      value = (int)(uint)rowID;
1310                   else
1311                      value = sqlite3_column_int(curStatement, num);
1312                   if(value < 0)
1313                      *(short *)data = (short)value;
1314                   else
1315                      *(uint16 *)data = (uint16)value;
1316                   break;
1317                }
1318                case 1:
1319                {
1320                   int value;
1321                   if(fld == tbl.primaryKey)
1322                      value = (int)(uint)rowID;
1323                   else
1324                      value = sqlite3_column_int(curStatement, num);
1325                   if(value < 0)
1326                      *(char *)data = (char)value;
1327                   else
1328                      *(byte *)data = (byte)value;
1329                   break;
1330                }
1331             }
1332             break;
1333          }
1334          case SQLITE_FLOAT:
1335          {
1336             double d = sqlite3_column_double(curStatement, num);
1337             if(dataType.typeSize == 8)
1338                *(double *)data = d;
1339             else
1340                *(float *)data = (float)d;
1341             break;
1342          }
1343          case SQLITE_TEXT:
1344          {
1345             int numBytes = sqlite3_column_bytes(curStatement, num);
1346             char * text = sqlite3_column_text(curStatement, num);
1347             *(char **)data = text ? new byte[numBytes+1] : null;
1348             if(text)
1349                memcpy(*(char **)data, text, numBytes+1);
1350             break;
1351          }
1352          case SQLITE_BLOB:
1353          {
1354             SerialBuffer buffer { };
1355             //buffer._buffer = sqlite3_column_blob(curStatement, num);
1356             buffer._size = sqlite3_column_bytes(curStatement, num);
1357             buffer._buffer = sqlite3_column_text(curStatement, num);
1358             buffer.count = buffer._size;
1359
1360             dataType._vTbl[__ecereVMethodID_class_OnUnserialize](dataType, data, buffer);
1361
1362             buffer._buffer = null;
1363             delete buffer;
1364             break;
1365          }
1366       }
1367       return true;
1368    }
1369
1370    bool SetData(Field fld, typed_object data)
1371    {
1372       SQLiteField sqlFld = (SQLiteField)fld;
1373       int result;
1374       int num = sqlFld.num + 1;
1375       char command[1024];
1376
1377       if(updateStatement)
1378          sqlite3_finalize(updateStatement);
1379       sprintf(command, "UPDATE `%s` SET `%s` = ? WHERE ROWID = ?;", tbl.name, sqlFld.name);
1380       result = sqlite3_prepare_v2(tbl.db.db, command, -1, &updateStatement, null);
1381       sqlite3_bind_int64(updateStatement, 2, (sqlite3_int64)rowID);
1382       BindData(updateStatement, 1, (SQLiteField)fld, data, null);
1383       result = sqlite3_step(updateStatement);
1384       sqlite3_reset(updateStatement);
1385       if(fld == tbl.primaryKey)
1386          rowID = *(uint *)data;
1387       return result == SQLITE_DONE;
1388    }
1389
1390    int GetSysID()
1391    {
1392       return (int)(uint)rowID;
1393    }
1394
1395    bool GoToSysID(uint id)
1396    {
1397       //char command[1024];
1398       int result;
1399       rowID = (uint)id;
1400       //if(statement)
1401          //sqlite3_finalize(statement);
1402       //sprintf(command, "SELECT ROWID, * FROM `%s` WHERE ROWID = ?;", tbl.name);
1403       //result = sqlite3_prepare_v2(tbl.db.db, command, -1, &statement, null);
1404
1405       if(curStatement)
1406          sqlite3_reset(curStatement);
1407
1408       curStatement = sysIDStatement;
1409       sqlite3_reset(sysIDStatement);
1410       sqlite3_bind_int64(curStatement, 1, (sqlite_int64)rowID);
1411       result = sqlite3_step(curStatement);
1412       done = result == SQLITE_DONE || (result && result != SQLITE_ROW);
1413       if(done) { rowID = 0; sqlite3_reset(curStatement); return false; }
1414       return !done;
1415    }
1416
1417    bool SetQueryParam(int paramID, int value)
1418    {
1419       int result;
1420       if(curStatement != queryStatement)
1421       {
1422          if(curStatement) sqlite3_reset(curStatement);
1423          curStatement = queryStatement;
1424       }
1425       sqlite3_reset(queryStatement);
1426       result = sqlite3_bind_int(queryStatement, paramID, value);
1427       return !result;
1428    }
1429
1430    bool SetQueryParam64(int paramID, int64 value)
1431    {
1432       int result;
1433       if(curStatement != queryStatement)
1434       {
1435          if(curStatement) sqlite3_reset(curStatement);
1436          curStatement = queryStatement;
1437       }
1438       sqlite3_reset(queryStatement);
1439       result = sqlite3_bind_int64(queryStatement, paramID, (sqlite_int64)value);
1440       return !result;
1441    }
1442
1443    bool SetQueryParamText(int paramID, char * data)
1444    {
1445       int result;
1446       if(curStatement != queryStatement)
1447       {
1448          if(curStatement) sqlite3_reset(curStatement);
1449          curStatement = queryStatement;
1450       }
1451       sqlite3_reset(queryStatement);
1452       if(data)
1453          result = sqlite3_bind_text(queryStatement, paramID, (char *)data, strlen((char *)data), SQLITE_TRANSIENT);
1454       else
1455          result = sqlite3_bind_text(queryStatement, paramID, null, 0, SQLITE_TRANSIENT);
1456       return !result;
1457    }
1458
1459    bool SetQueryParamObject(int paramID, void * data, Class type)
1460    {
1461       int result;
1462       if(curStatement != queryStatement)
1463       {
1464          if(curStatement) sqlite3_reset(curStatement);
1465          curStatement = queryStatement;
1466       }
1467       sqlite3_reset(queryStatement);
1468       {
1469          SerialBuffer buffer { };
1470          type._vTbl[__ecereVMethodID_class_OnSerialize](type, data, buffer);
1471          result = sqlite3_bind_text(queryStatement, paramID, buffer._buffer, buffer.count, SQLITE_TRANSIENT);
1472          delete buffer;
1473       }
1474       return !result;
1475    }
1476
1477    /*char * GetExtraColumn(int paramID)
1478    {
1479       SQLiteField lastFld = tbl.fields.last;
1480       return sqlite3_column_text(curStatement, lastFld.num + 1 + paramID);
1481    }*/
1482    char * GetColumn(int paramID)
1483    {
1484       return sqlite3_column_text(curStatement, paramID);
1485    }
1486 }