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 #ifdef __linux__
  10 #include <sqlite3.h>
  11 #else
  12 #include "sqlite3.h"
  13 #endif
  14
  15 #define uint _uint
  16 #include "ffi.h"
  17 #undef uint
  18
  19 __attribute__((unused)) static void UnusedFunction()
  20 {
  21    int a;
  22    a.OnGetString(0,0,0);
  23    a.OnFree();
  24    a.OnCopy(null);
  25    a.OnCompare(null);
  26    a.OnSaveEdit(null,0);
  27    a.OnEdit(null,null,0,0,0,0,0);
  28    a.OnDisplay(null,0,0,0,0,0,0);
  29    a.OnGetDataFromString(null);
  30    a.OnUnserialize(null);
  31    a.OnSerialize(null);
  32 }
  33
  34 default:
  35 extern int __ecereVMethodID_class_OnGetString;
  36 extern int __ecereVMethodID_class_OnGetDataFromString;
  37 extern int __ecereVMethodID_class_OnCompare;
  38 extern int __ecereVMethodID_class_OnSerialize;
  39 extern int __ecereVMethodID_class_OnUnserialize;
  40 extern int __ecereVMethodID_class_OnFree;
  41 private:
  42
  43 int CollationCompare(Class type, int count1, const void * data1, int count2, const void * data2)
  44 {
  45    if(type.type == normalClass || type.type ==  noHeadClass)
  46    {
  47       Instance inst1, inst2;
  48       int result;
  49       SerialBuffer buffer1 { size = count1, count = count1, buffer = (byte *)data1 };
  50       SerialBuffer buffer2 { size = count2, count = count2, buffer = (byte *)data2 };
  51
  52       ((void (*)(void *, void *, void *))(void *)type._vTbl[__ecereVMethodID_class_OnUnserialize])(type, &inst1, buffer1);
  53       ((void (*)(void *, void *, void *))(void *)type._vTbl[__ecereVMethodID_class_OnUnserialize])(type, &inst2, buffer2);
  54
  55       result = ((int (*)(void *, const void *, const void *))(void *)type._vTbl[__ecereVMethodID_class_OnCompare])(type, inst1, inst2);
  56
  57       buffer1.buffer = null;
  58       buffer2.buffer = null;
  59       delete buffer1;
  60       delete buffer2;
  61       inst1.OnFree();
  62       inst2.OnFree();
  63       return result;
  64    }
  65    else if(type.type == structClass)
  66    {
  67       void * inst1, * inst2;
  68       int result;
  69       SerialBuffer buffer1 { size = count1, count = count1, buffer = (byte *)data1 };
  70       SerialBuffer buffer2 { size = count2, count = count2, buffer = (byte *)data2 };
  71
  72       inst1 = new0 byte[type.structSize];
  73       inst2 = new0 byte[type.structSize];
  74       ((void (*)(void *, void *, void *))(void *)type._vTbl[__ecereVMethodID_class_OnUnserialize])(type, inst1, buffer1);
  75       ((void (*)(void *, void *, void *))(void *)type._vTbl[__ecereVMethodID_class_OnUnserialize])(type, inst2, buffer2);
  76
  77       result = ((int (*)(void *, void *, void *))(void *)type._vTbl[__ecereVMethodID_class_OnCompare])(type, inst1, inst2);
  78
  79       buffer1.buffer = null;
  80       buffer2.buffer = null;
  81       delete buffer1;
  82       delete buffer2;
  83       delete inst1;
  84       delete inst2;
  85       return result;
  86    }
  87    else
  88       return ((int (*)(void *, const void *, const void *))(void *)type._vTbl[__ecereVMethodID_class_OnCompare])(type, data1, data2);
  89 }
  90
  91 public class SQLiteStaticLink { }   // Until .imp generation is fixed
  92
  93 class SQLiteDataSource : DirFilesDataSourceDriver
  94 {
  95    class_property(name) = "SQLite";
  96    class_property(databaseFileExtension) = "sqlite";
  97
  98    Database OpenDatabase(const String name, CreateOptions createOptions, DataSource ds)
  99    {
 100       Database result = null;
 101       if(name && name[0])
 102       {
 103          String path = MakeDatabasePath(name);
 104          sqlite3 * db;
 105
 106          // sqlite3_open(path, &db);
 107          // sqlite3_open_v2(path, &db, SQLITE_OPEN_READONLY /*SQLITE_OPEN_READWRITE*/ /*SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE*/, null );
 108
 109          if(sqlite3_open_v2(path, &db, (createOptions == readOnly) ? SQLITE_OPEN_READONLY :
 110             (SQLITE_OPEN_READWRITE | ((createOptions == create) ? SQLITE_OPEN_CREATE : 0)), null))
 111          {
 112             // fprintf(stderr, "%s\n", s); // interesting
 113             printf($"EDASQLite: Can't open database (%s): %s\n", path, sqlite3_errmsg(db));
 114             sqlite3_close(db);
 115          }
 116          else
 117          {
 118             bool success = true;
 119             char command[1024];
 120             sprintf(command, "CREATE TABLE eda_table_fields(Table_Name TEXT, Name TEXT, Type TEXT, Length INT);");
 121             sqlite3_exec(db, command, null, null, null);
 122
 123             if(createOptions != readOnly)
 124             {
 125                sqlite3_exec(db, "PRAGMA locking_mode=exclusive", null, null, null);
 126                sqlite3_exec(db, "DELETE FROM eda_table_fields WHERE Name = 'lockDummy'", null, null, null);
 127                if(sqlite3_exec(db, "INSERT INTO eda_table_fields (Table_Name, Name, Type, Length) VALUES ('lockDummy', 'lockDummy', 'lockDummy', 'lockDummy')", null, null, null))
 128                   success = false;
 129                else
 130                   sqlite3_exec(db, "DELETE FROM eda_table_fields WHERE Name = 'lockDummy'", null, null, null);
 131             }
 132
 133             if(success)
 134                result = SQLiteDatabase { db = db };
 135          }
 136          delete path;
 137       }
 138       return result;
 139    }
 140 }
 141
 142 class SQLiteField : Field
 143 {
 144    char * name;
 145    Class type;
 146    int length;
 147    public LinkElement<SQLiteField> link;
 148    int num;
 149    int sqliteType;
 150    SQLiteTable tbl;
 151
 152    ~SQLiteField()
 153    {
 154       delete name;
 155    }
 156
 157    const String GetName()
 158    {
 159       return name;
 160    }
 161    Class GetType()
 162    {
 163       return type;
 164    }
 165    int GetLength() { return length; }
 166    Field GetPrev()
 167    {
 168       return link.prev;
 169    }
 170    Field GetNext()
 171    {
 172       return link.next;
 173    }
 174    Table GetTable()
 175    {
 176       return tbl;
 177    }
 178 }
 179
 180 class SQLiteDatabase : Database
 181 {
 182    sqlite3 * db;
 183    AVLTree<const String> collations { };
 184
 185    ~SQLiteDatabase()
 186    {
 187       sqlite3_exec(db, "PRAGMA locking_mode=normal", null, null, null);
 188       // "Simply setting the locking-mode to NORMAL is not enough - locks are not released until the next time the database file is accessed."
 189       sqlite3_exec(db, "SELECT COUNT(*) from eda_table_fields", null, null, null);
 190       sqlite3_close(db);
 191    }
 192
 193    uint ObjectsCount(ObjectType type)
 194    {
 195       // TODO
 196       return 0;
 197    }
 198
 199    bool RenameObject(ObjectType type, const String name, const String rename)
 200    {
 201       // TODO
 202       return false;
 203    }
 204
 205    bool DeleteObject(ObjectType type, const String name)
 206    {
 207       // TODO
 208       return false;
 209    }
 210
 211    Table OpenTable(const String name, OpenOptions options)
 212    {
 213       char command[1024];
 214       //int result;
 215       int nRows = 0, nCols = 0;
 216       char ** t;
 217       SQLiteTable table = null;
 218       if(options.type == tablesList)
 219       {
 220          SQLiteField field;
 221          strcpy(command, "SELECT name FROM sqlite_master WHERE type='table' AND name!='eda_table_fields';");
 222          table = SQLiteTable { db = this, specialStatement = CopyString(command) };
 223          field = { tbl = table, name = CopyString("Name"), type = class(String), num = -1, sqliteType = SQLITE_TEXT };
 224          LinkTable(table);
 225          incref field;
 226          table._fields.Add(field);
 227       }
 228       else if(options.type == fieldsList)
 229       {
 230          SQLiteField field;
 231
 232          sprintf(command, "SELECT Name, Type, Length FROM eda_table_fields WHERE Table_Name='%s';", name);
 233          table = SQLiteTable { db = this, specialStatement = CopyString(command) };
 234          LinkTable(table);
 235          field = { tbl = table, name = CopyString("Name"), type = class(String), num = -1, sqliteType = SQLITE_TEXT };
 236          incref field;
 237          table._fields.Add(field);
 238          field = { tbl = table, name = CopyString("Type"), type = class(Class), num = 0, sqliteType = SQLITE_TEXT };
 239          incref field;
 240          table._fields.Add(field);
 241          field = { tbl = table, name = CopyString("Length"), type = class(int), num = 1, sqliteType = SQLITE_INTEGER };
 242          incref field;
 243          table._fields.Add(field);
 244       }
 245       else if(options.type == tableRows)
 246       {
 247          bool addFields = false;
 248
 249          sprintf(command, "SELECT Name FROM eda_table_fields WHERE Table_Name='%s';", name);
 250          /*result = */sqlite3_get_table(db, command, &t, &nRows, &nCols, null);
 251          if(!nRows && !nCols)
 252             addFields = true;
 253
 254          sqlite3_free_table(t);
 255
 256          sprintf(command, "SELECT sql FROM sqlite_master WHERE type='table' AND name='%s';", name);
 257          nCols = 0, nRows = 0;
 258          /*result = */sqlite3_get_table(db, command, &t, &nRows, &nCols, null);
 259
 260          if((nCols || nRows) || options.create)
 261          {
 262             table = SQLiteTable { db = this, name = CopyString(name) };
 263             LinkTable(table);
 264             if(!nCols && !nRows)
 265                table.mustCreate = true;
 266             else
 267             {
 268                if(addFields)
 269                {
 270                   int r;
 271                   for(r = 1; r <= nRows; r++)      // There should be only 1 row here
 272                   {
 273                      char * sql = t[nCols * r];
 274                      char * bracket = strchr(sql, '(');
 275                      if(bracket)
 276                      {
 277                         int c = 0;
 278                         bracket++;
 279                         while(true)
 280                         {
 281                            char ch;
 282                            char fieldName[256];
 283                            char dataType[256];
 284                            int d;
 285                            int start = c;
 286                            int sqliteType = SQLITE_BLOB;
 287                            Class type = class(int);
 288                            fieldName[0] = 0;
 289                            dataType[0] = 0;
 290
 291                            while((ch = bracket[c++]))
 292                            {
 293                               if(ch == ',' || ch == ')')
 294                                  break;
 295                            }
 296                            for(d = c-1; d >= 0 && bracket[d] != ' '; d--);
 297
 298                            memcpy(fieldName, bracket + start, d - start);
 299                            fieldName[d - start] = 0;
 300
 301                            memcpy(dataType, bracket + d + 1, c - d - 2);
 302                            dataType[c - d - 2] = 0;
 303
 304                            while(ch && bracket[c] == ' ') c++;
 305
 306                            if(!strcmp(dataType, "REAL")) { sqliteType = SQLITE_FLOAT; type = class(double); }
 307                            else if(!strcmp(dataType, "TEXT")) { sqliteType = SQLITE_TEXT; type = class(String); }
 308                            else if(!strcmp(dataType, "INTEGER")) { sqliteType = SQLITE_INTEGER; type = class(int); }
 309                            else if(!strcmp(dataType, "BLOB")) { sqliteType = SQLITE_BLOB; type = class(char *); } //class(byte *);
 310
 311                            sprintf(command, "INSERT INTO eda_table_fields (Table_Name, Name, Type, Length) VALUES ('%s', '%s', '%s', %d);", name,
 312                               fieldName, type.name, 0);
 313                            /*result = */sqlite3_exec(db, command, null, null, null);
 314
 315                            {
 316                               SQLiteField field { tbl = table, name = CopyString(fieldName), type = type, num = table._fields.count, sqliteType = sqliteType };
 317                               incref field;
 318                               table._fields.Add(field);
 319                            }
 320
 321                            if(!ch || ch == ')') break;
 322                         }
 323                      }
 324                   }
 325                }
 326                else
 327                {
 328                   Table refTable = null;
 329                   sqlite3_stmt * statement;
 330
 331                   sprintf(command, "SELECT Name, Type, Length FROM eda_table_fields WHERE Table_Name='%s';", name);
 332                   /*result = */sqlite3_prepare_v2(db, command, -1, &statement, null);
 333
 334                   while(sqlite3_step(statement) != SQLITE_DONE)
 335                   {
 336                      const char * fieldName = (const char *)sqlite3_column_text(statement, 0);
 337                      const char * typeName = (const char *)sqlite3_column_text(statement, 1);
 338                      int length = sqlite3_column_int(statement, 2);
 339                      Class type = null;
 340                      int sqliteType = SQLITE_BLOB;
 341
 342                      type.OnGetDataFromString(typeName);
 343
 344                      if(type)
 345                      {
 346                         if(!strcmp(type.dataTypeString, "int") || !strcmp(type.dataTypeString, "unsigned int") ||
 347                            !strcmp(type.dataTypeString, "long") || !strcmp(type.dataTypeString, "long int") ||
 348                            !strcmp(type.dataTypeString, "uint") || !strcmp(type.dataTypeString, "uint32") ||
 349                            !strcmp(type.dataTypeString, "int64") || !strcmp(type.dataTypeString, "unsigned int64") || !strcmp(type.dataTypeString, "uint64") ||
 350                            !strcmp(type.dataTypeString, "short") || !strcmp(type.dataTypeString, "unsigned short") || !strcmp(type.dataTypeString, "uint16") ||
 351                            !strcmp(type.dataTypeString, "char") || !strcmp(type.dataTypeString, "unsigned char") || !strcmp(type.dataTypeString, "byte"))
 352                            sqliteType = SQLITE_INTEGER;
 353                         else if(!strcmp(type.dataTypeString, "double") || !strcmp(type.dataTypeString, "float"))
 354                            sqliteType = SQLITE_FLOAT;
 355                         else if(!strcmp(type.dataTypeString, "String") || !strcmp(type.dataTypeString, "char *"))
 356                            sqliteType = SQLITE_TEXT;
 357                         else
 358                         {
 359                            if(strcmp(type.fullName, "CIString") && !collations.Find(type.fullName))
 360                            {
 361                               collations.Add(type.fullName);
 362                               sqlite3_create_collation_v2(table.db.db, type.fullName, SQLITE_UTF8, type, CollationCompare, null);
 363                            }
 364                            sqliteType = SQLITE_BLOB;
 365                         }
 366                      }
 367
 368                      {
 369                         Table * fTable = (Table *)(intptr)eClass_GetProperty(type, "table");
 370                         SQLiteField field { tbl = table, name = CopyString(fieldName), type = type, length = length, num = table._fields.count, sqliteType = sqliteType };
 371                         incref field;
 372                         if(fTable) refTable = *fTable;
 373                         if(!table.primaryKey && refTable && !strcmp(refTable.name, table.name))
 374                            table.primaryKey = field;
 375
 376                         table._fields.Add(field);
 377                      }
 378                   }
 379                   sqlite3_finalize(statement);
 380                }
 381             }
 382          }
 383          sqlite3_free_table(t);
 384       }
 385       return (Table)table;
 386    }
 387
 388    bool Begin()
 389    {
 390       char command[1024];
 391       int result;
 392       sprintf(command, "BEGIN;");
 393       result = sqlite3_exec(db, command, null, null, null);
 394       if(result)
 395          PrintLn($"BEGIN FAILED!");
 396       return result == SQLITE_OK;
 397    }
 398
 399    bool Commit()
 400    {
 401       char command[1024];
 402       int result;
 403       sprintf(command, "COMMIT;");
 404       result = sqlite3_exec(db, command, null, null, null);
 405       if(result)
 406          PrintLn($"COMMIT FAILED!");
 407       return result == SQLITE_OK;
 408    }
 409
 410    bool CreateCustomFunction(const char * name, SQLCustomFunction customFunction)
 411    {
 412       bool result = false;
 413       Class cfClass = customFunction._class;
 414       customFunction.method = eClass_FindMethod(cfClass, "function", cfClass.module);
 415       if(customFunction.method)
 416       {
 417          String typeString = CopyString(customFunction.method.dataTypeString);
 418          char * tokens[256];
 419          int count = TokenizeWith(typeString, sizeof(tokens)/sizeof(tokens[0]), tokens, "(,)", false);
 420          int c;
 421          bool variadic = false;
 422
 423          for(c = 0; c < count; c++)
 424          {
 425             Class type = null;
 426             bool pointer = false;
 427             const String arg = tokens[c];
 428             char * space;
 429             TrimLSpaces(tokens[c], tokens[c]);
 430             if(strchr(arg, '*')) pointer = true;
 431             if(pointer)
 432                // Using String for generic pointer...
 433                type = class(String);
 434             else
 435             {
 436                if((space = strchr(arg, ' '))) *space = 0;
 437                if(!strcmp(arg, "void"))
 438                   type = null;
 439                else if(!strcmp(arg, "..."))
 440                   variadic = true;
 441                else
 442                {
 443                   if(cfClass.templateParams.count)
 444                   {
 445                      ClassTemplateParameter p;
 446                      int id = 0;
 447                      for(p = cfClass.templateParams.first; p; p = p.next, id++)
 448                      {
 449                         if(!strcmp(p.name, arg))
 450                            break;
 451                      }
 452                      if(p && cfClass.templateArgs)
 453                         arg = cfClass.templateArgs[id].dataTypeString;
 454                   }
 455                   type = eSystem_FindClass(customFunction._class.module, arg);
 456                   if(!type)
 457                      type = eSystem_FindClass(customFunction._class.module.application, arg);
 458                }
 459             }
 460             if(c == 0)
 461                customFunction.returnType = type;
 462             else
 463                customFunction.args.Add(type);
 464          }
 465          delete typeString;
 466          if(variadic)
 467          {
 468             result = false;
 469             // Variadic args don't make sense for SQL custom functions
 470             // Note that different CIF must be prepared for different set of arguments
 471             // ffi_prep_cif_var(&customFunction.cif, FFI_DEFAULT_ABI, args.count-1, rType, argTypes);
 472          }
 473          else
 474          {
 475             customFunction.rType = FFIGetType(customFunction.returnType, true);
 476             customFunction.argTypes.Add((void *)&ffi_type_pointer);    // This pointer for SQLCustomFunction object
 477             for(a : customFunction.args) customFunction.argTypes.Add((void *)FFIGetType(a, false));
 478             ffi_prep_cif(&customFunction.cif, FFI_DEFAULT_ABI, customFunction.argTypes.count, customFunction.rType, (ffi_type **) customFunction.argTypes.array);
 479             result = sqlite3_create_function(db, name, customFunction.args.count, SQLITE_UTF8, customFunction, SQLiteFunctionProcessor, null, null) == SQLITE_OK;
 480          }
 481       }
 482       return result;
 483    }
 484 }
 485
 486 static class FFITypesHolder : Map<Class, String> { ~FFITypesHolder() { Free(); } }
 487 FFITypesHolder structFFITypes { };
 488 __attribute__((unused)) static Iterator dummy; // TOFIX: forward struct declaration issues on Clang
 489
 490 public ffi_type * FFIGetType(Class type, bool structByValue)
 491 {
 492    if(type)
 493       switch(type.type)
 494       {
 495          // Pointer Types
 496          case structClass:
 497             if(structByValue)
 498             {
 499                MapIterator<Class, String> it { map = structFFITypes };
 500                ffi_type * ffiType = null;
 501                if(it.Index(type, false))
 502                   ffiType = (void *)it.data;
 503                else
 504                {
 505                   /*
 506                   DataMember member;
 507                   Array<String> memberTypes { };
 508                   for(member = type.membersAndProperties.first; member; member = member.next)
 509                   {
 510                      if(!member.isProperty)
 511                      {
 512                         memberTypes.Add(FFIGetType(member.dataType
 513                      }
 514                   }
 515                   */
 516                   ffiType = new0 ffi_type[1];
 517                   ffiType->size = type.structSize;
 518                   ffiType->type = FFI_TYPE_STRUCT;
 519                   structFFITypes[type] = (void *)ffiType;
 520                }
 521                return ffiType;
 522             }
 523          case normalClass:
 524          case noHeadClass:
 525          case unionClass:
 526             return &ffi_type_pointer;
 527          // Scalar Types
 528          case bitClass:
 529          case enumClass:
 530          case systemClass:
 531          case unitClass:
 532                  if(!strcmp(type.dataTypeString, "float"))  return &ffi_type_float;
 533             else if(!strcmp(type.dataTypeString, "double")) return &ffi_type_double;
 534             else
 535                switch(type.typeSize)
 536                {
 537                   case 1: return &ffi_type_uint8;
 538                   case 2: return &ffi_type_uint16;
 539                   case 4: return &ffi_type_uint32;
 540                   case 8: return &ffi_type_uint64;
 541                }
 542       }
 543    else
 544       return &ffi_type_void;
 545    return null;
 546 }
 547
 548 static SerialBuffer staticBuffer { };
 549 void SQLiteFunctionProcessor(sqlite3_context* context, int n, sqlite3_value** values)
 550 {
 551    SQLCustomFunction sqlFunction = sqlite3_user_data(context);
 552
 553    /*  // Simple 1 pointer param returning a string
 554    void * p = sqlFunction.method.function(sqlFunction, sqlite3_value_text(values[0]));
 555    sqlite3_result_text(context, p, strlen(p), SQLITE_TRANSIENT);
 556    */
 557    int64 retData = 0;
 558    void * ret = &retData;
 559    Array<String> args { size = sqlFunction.args.count + 1 };
 560    Iterator<String> ffiArg { sqlFunction.argTypes };
 561    Iterator<String> arg { args };
 562    int i = 0;
 563
 564    // this * for the SQLCustomFunction
 565    args[0] = (void *)&sqlFunction;
 566    ffiArg.Next();
 567    // Get the arguments from SQLite
 568    for(a : sqlFunction.args)
 569    {
 570       ffi_type * type = (ffi_type *)sqlFunction.argTypes[i+1];
 571       if(i >= n) break;
 572       switch(a.type)
 573       {
 574          case normalClass:
 575          case noHeadClass:
 576          case structClass:
 577          case unionClass:
 578          {
 579             void ** data = new void *[1];
 580             args[i+1] = (void *)data;
 581             if(a == class(String))
 582             {
 583                int numBytes = sqlite3_value_bytes(values[i]);
 584                const char * text = (const char *)sqlite3_value_text(values[i]);
 585                *(char **)data = text ? new byte[numBytes+1] : null;
 586                if(text)
 587                   memcpy(*(char **)data, text, numBytes+1);
 588             }
 589             else
 590             {
 591                SerialBuffer buffer = staticBuffer; //{ };
 592                buffer.pos = 0;
 593                buffer._size = sqlite3_value_bytes(values[i]);
 594                buffer._buffer = (byte *)sqlite3_value_text(values[i]);
 595                //buffer._buffer = sqlite3_value_blob(curStatement);
 596                buffer.count = buffer._size;
 597                if(a.type == structClass)
 598                   *data = new byte[a.structSize];
 599                ((void (*)(void *, void *, void *))(void *)a._vTbl[__ecereVMethodID_class_OnUnserialize])(a, (a.type == structClass) ? *data : data, buffer);
 600                buffer._buffer = null;
 601                //delete buffer;
 602             }
 603             break;
 604          }
 605          case bitClass:
 606          case enumClass:
 607          case systemClass:
 608          case unitClass:
 609             if(type == &ffi_type_double || type == &ffi_type_float)
 610             {
 611                double d = sqlite3_value_double(values[i]);
 612                if(a.typeSize == 8)
 613                {
 614                   double * data = new double[1];
 615                   args[i+1] = (void *)data;
 616                   *data = d;
 617                }
 618                else
 619                {
 620                   float * data = new float[1];
 621                   args[i+1] = (void *)data;
 622                   *data = (float)d;
 623                }
 624             }
 625             else
 626             {
 627                switch(a.typeSize)
 628                {
 629                   case 8:
 630                   {
 631                      int64 * data = new int64[1];
 632                      args[i+1] = (void *)data;
 633                      *data = sqlite3_value_int64(values[i]);
 634                      break;
 635                   }
 636                   case 4:
 637                   {
 638                      int * data = new int[1];
 639                      args[i+1] = (void *)data;
 640                      *data = sqlite3_value_int(values[i]);
 641                      break;
 642                   }
 643                   case 2:
 644                   {
 645                      short * data = new short[1];
 646                      int value;
 647                      args[i+1] = (void *)data;
 648                      value = sqlite3_value_int(values[i]);
 649                      if(value < 0)
 650                         *data = (short)value;
 651                      else
 652                         *(uint16 *)data = (uint16)value;
 653                      break;
 654                   }
 655                   case 1:
 656                   {
 657                      char * data = new char[1];
 658                      int value;
 659                      args[i+1] = data;
 660                      value = sqlite3_value_int(values[i]);
 661                      if(value < 0)
 662                         *data = (char)value;
 663                      else
 664                         *(byte *)data = (byte)value;
 665                      break;
 666                   }
 667                }
 668             }
 669             break;
 670       }
 671       i++;
 672       ffiArg.Next();
 673    }
 674    if(sqlFunction.returnType && sqlFunction.returnType.type == structClass)
 675       ret = new byte[sqlFunction.returnType.typeSize];
 676    ffi_call(&sqlFunction.cif, (void *)sqlFunction.method.function, ret, args.array);
 677    // Give SQLite the return value
 678    if(sqlFunction.returnType)
 679    {
 680       ffi_type * type = sqlFunction.rType;
 681       Class r = sqlFunction.returnType;
 682       switch(r.type)
 683       {
 684          case normalClass:
 685          case noHeadClass:
 686          case structClass:
 687          case unionClass:
 688          {
 689             void * data = ret ? *(void **)ret : null;
 690             if(r.type == structClass)
 691                data = ret;
 692             if(r == class(String))
 693             {
 694                if(data)
 695                   sqlite3_result_text(context, (char *)data, strlen((char *)data), SQLITE_TRANSIENT);
 696                else
 697                   sqlite3_result_text(context, null, 0, SQLITE_TRANSIENT);
 698             }
 699             else
 700             {
 701                SerialBuffer buffer { };
 702                ((void (*)(void *, void *, void *))(void *)r._vTbl[__ecereVMethodID_class_OnSerialize])(r, data, buffer);
 703                sqlite3_result_text(context, (char *)buffer._buffer, buffer.count, SQLITE_TRANSIENT);
 704                delete buffer;
 705
 706                // Avoid destroying Strings for now... (Returning memory owned by the Custom Function)
 707                ((void (*)(void *, void *))(void *)r._vTbl[__ecereVMethodID_class_OnFree])(r, data);
 708             }
 709
 710             if(r.type == structClass)
 711                delete ret;
 712             break;
 713          }
 714          case bitClass:
 715          case enumClass:
 716          case systemClass:
 717          case unitClass:
 718             if(type == &ffi_type_double || type == &ffi_type_float)
 719             {
 720                if(r.typeSize == 8)
 721                   sqlite3_result_double(context, *(double *)ret);
 722                else
 723                   sqlite3_result_double(context, (double)*(float *)ret);
 724             }
 725             else
 726             {
 727                switch(r.typeSize)
 728                {
 729                   case 8:
 730                      sqlite3_result_int64(context, (sqlite3_int64)*(int64 *)ret);
 731                      break;
 732                   case 4:
 733                      sqlite3_result_int(context, *(int *)ret);
 734                      break;
 735                   case 2:
 736                   {
 737                      int value;
 738                      //if((int)data < 0)
 739                         value = (int)*(short *)ret;
 740                      //else
 741                         //value = (int)*(uint16 *)ret;
 742                      sqlite3_result_int(context, value);
 743                      break;
 744                   }
 745                   case 1:
 746                   {
 747                      int value;
 748                      //if((int)data < 0)
 749                         value = (int)*(char *)ret;
 750                      //else
 751                         //value = (int)*(byte *)ret;
 752                      sqlite3_result_int(context, value);
 753                      break;
 754                   }
 755                }
 756             }
 757             break;
 758       }
 759    }
 760
 761    // Free Stuff up
 762    arg.Next();
 763    for(type : sqlFunction.args; arg.Next())
 764    {
 765       // Free instance
 766       void * data = *(void **)arg.data;
 767       ((void (*)(void *, void *))(void *)type._vTbl[__ecereVMethodID_class_OnFree])(type, data);
 768       if(type.type == structClass)
 769          delete data;
 770       // Free arg holder
 771       data = arg.data;
 772       delete data;
 773    }
 774    delete args;
 775 }
 776
 777 class SQLiteTable : Table
 778 {
 779    char * name;
 780    bool mustCreate;
 781    SQLiteDatabase db;
 782    LinkList<SQLiteField> _fields { };
 783    char * specialStatement;
 784    SQLiteField primaryKey;
 785    FieldIndex * indexFields;
 786    int indexFieldsCount;
 787    int64 lastID;
 788
 789    Field AddField(const String fieldName, Class type, int length)
 790    {
 791       SQLiteField field;
 792       char command[1024];
 793       char dataType[256];
 794       int sqliteType;
 795       int result;
 796       Table refTable = null;
 797       Field idField = null;
 798       command[0] = 0;
 799
 800       if(FindField(fieldName)) return null;
 801
 802       if(!strcmp(type.dataTypeString, "int") || !strcmp(type.dataTypeString, "unsigned int") ||
 803          !strcmp(type.dataTypeString, "long") || !strcmp(type.dataTypeString, "long int") ||
 804          !strcmp(type.dataTypeString, "uint") || !strcmp(type.dataTypeString, "uint32") ||
 805          !strcmp(type.dataTypeString, "int64") || !strcmp(type.dataTypeString, "unsigned int64") || !strcmp(type.dataTypeString, "uint64") ||
 806          !strcmp(type.dataTypeString, "short") || !strcmp(type.dataTypeString, "unsigned short") || !strcmp(type.dataTypeString, "uint16") ||
 807          !strcmp(type.dataTypeString, "char") || !strcmp(type.dataTypeString, "unsigned char") || !strcmp(type.dataTypeString, "byte"))
 808       {
 809          strcpy(dataType, "INTEGER");
 810          sqliteType = SQLITE_INTEGER;
 811       }
 812       else if(!strcmp(type.dataTypeString, "double") || !strcmp(type.dataTypeString, "float"))
 813       {
 814          strcpy(dataType, "REAL");
 815          sqliteType = SQLITE_FLOAT;
 816       }
 817       else if(!strcmp(type.name, "CIString"))
 818       {
 819          strcpy(dataType, "TEXT");
 820          sqliteType = SQLITE_BLOB;
 821       }
 822       else if(!strcmp(type.dataTypeString, "String") || !strcmp(type.dataTypeString, "char *"))
 823       {
 824          strcpy(dataType, "TEXT");
 825          sqliteType = SQLITE_TEXT;
 826       }
 827       else
 828       {
 829          //strcpy(dataType, "BLOB");
 830          strcpy(dataType, "TEXT");
 831          sqliteType = SQLITE_BLOB;
 832
 833          if(!db.collations.Find(type.fullName))
 834          {
 835             db.collations.Add(type.fullName);
 836             result = sqlite3_create_collation_v2(db.db, type.fullName, SQLITE_UTF8, type, CollationCompare, null);
 837          }
 838       }
 839       if(sqliteType != SQLITE_BLOB && eClass_IsDerived(type, class(eda::Id)))
 840       {
 841          Table * table = (Table *)(intptr)eClass_GetProperty(type, "table");
 842          if(table) refTable = *table;
 843          if(refTable)
 844          {
 845             if(primaryKey || refTable != this)
 846             {
 847                for(idField = refTable.firstField; idField; idField = idField.next)
 848                   if(eClass_IsDerived(type, idField.type)) break;
 849
 850                if(!idField)
 851                   PrintLn("WARNING: field not yet created for class ", (String)type.name);
 852             }
 853             else
 854                idField = primaryKey;
 855          }
 856          else
 857          {
 858             PrintLn($"WARNING: Table not yet created for class ", (String)type.name);
 859          }
 860       }
 861
 862       if(mustCreate)
 863       {
 864          if(sqliteType == SQLITE_BLOB)
 865          {
 866             if(!strcmp(type.name, "CIString"))
 867                sprintf(command, "CREATE TABLE `%s`(%s %s COLLATE NOCASE);", name, fieldName, dataType);
 868             else
 869                sprintf(command, "CREATE TABLE `%s`(%s %s COLLATE '%s');", name, fieldName, dataType, type.fullName);
 870          }
 871          else if(refTable)
 872          {
 873             if(!idField && refTable == this)
 874                sprintf(command, "CREATE TABLE `%s`(`%s` %s PRIMARY KEY);", name, fieldName, dataType);
 875             else if(idField)
 876                sprintf(command, "CREATE TABLE `%s`(`%s` %s REFERENCES `%s`(`%s`));", name, fieldName, dataType, refTable.name, idField.name);
 877          }
 878          else
 879             sprintf(command, "CREATE TABLE `%s`(`%s` %s);", name, fieldName, dataType);
 880          result = sqlite3_exec(db.db, command, null, null, null);
 881          if(result) return null;
 882          mustCreate = false;
 883       }
 884       else
 885       {
 886          if(sqliteType == SQLITE_BLOB)
 887          {
 888             if(!strcmp(type.name, "CIString"))
 889                sprintf(command, "ALTER TABLE `%s` ADD `%s` %s COLLATE NOCASE;", name, fieldName, dataType);
 890             else
 891                sprintf(command, "ALTER TABLE `%s` ADD `%s` %s COLLATE `%s`;", name, fieldName, dataType, type.fullName);
 892          }
 893          else if(refTable)
 894          {
 895             if(!idField && refTable == this)
 896             {
 897                PrintLn($"WARNING: ALTER TABLE DOESN'T WORK WITH PRIMARY KEY FOR ", (String)name);
 898                sprintf(command, "ALTER TABLE `%s` ADD `%s` %s PRIMARY KEY;", name, fieldName, dataType);
 899             }
 900             else if(idField)
 901                sprintf(command, "ALTER TABLE `%s` ADD `%s` %s REFERENCES `%s`(`%s`);", name, fieldName, dataType, refTable.name, idField.name);
 902          }
 903          else
 904             sprintf(command, "ALTER TABLE `%s` ADD `%s` %s;", name, fieldName, dataType);
 905          result = sqlite3_exec(db.db, command, null, null, null);
 906          if(result) return null;
 907       }
 908
 909       sprintf(command, "INSERT INTO eda_table_fields (Table_Name, Name, Type, Length) VALUES ('%s', '%s', '%s', %d);", name,
 910          fieldName, type.name, length);
 911       result = sqlite3_exec(db.db, command, null, null, null);
 912
 913       field = { name = CopyString(fieldName), type = type, num = _fields.count, sqliteType = sqliteType };
 914       incref field;
 915       _fields.Add(field);
 916       if(!primaryKey && refTable == this)
 917          primaryKey = field;
 918       return (Field)field;
 919    }
 920
 921    Field FindField(const String name)
 922    {
 923       for(f : _fields; !strcmp(f.name, name))
 924       {
 925          if(!primaryKey)
 926          {
 927             if(f.sqliteType != SQLITE_BLOB && eClass_IsDerived(f.type, class(eda::Id)))
 928             {
 929
 930                Table * tablePtr = (Table *)(intptr)eClass_GetProperty(f.type, "table");
 931                if(tablePtr && *tablePtr == this)
 932                   primaryKey = f;
 933             }
 934          }
 935          return (Field)f;
 936       }
 937       return null;
 938    }
 939
 940    bool GenerateIndex(int count, FieldIndex * fieldIndexes, bool init)
 941    {
 942       char command[1024];
 943       int c;
 944       int result;
 945       char indexName[4096];
 946
 947       delete indexFields;
 948       indexFieldsCount = count;
 949       indexFields = new FieldIndex[count];
 950       memcpy(indexFields, fieldIndexes, count * sizeof(FieldIndex));
 951
 952       // TODO: USE CODED INDEX NAME INSTEAD?
 953       strcpy(indexName, "index_");
 954       strcat(indexName, name);
 955       strcat(indexName, "_");
 956       for(c = 0; c<count; c++)
 957       {
 958          if(fieldIndexes[c].field)
 959          {
 960             if(count == 1 && fieldIndexes[c].field == primaryKey)
 961                return true;
 962             strcat(indexName, fieldIndexes[c].field.name);
 963             if(fieldIndexes[c].memberField)
 964             {
 965                strcat(indexName, ".");
 966                strcat(indexName, fieldIndexes[c].memberField.name);
 967             }
 968             strcat(indexName, (fieldIndexes[c].order == ascending) ? "+" : "-");
 969          }
 970          else
 971             return false;
 972       }
 973
 974       sprintf(command, "CREATE INDEX IF NOT EXISTS `%s` ON `%s` (", indexName, name);
 975       for(c = 0; c<count; c++)
 976       {
 977          char columnName[1024];
 978          sprintf(columnName, "`%s` %s", fieldIndexes[c].field.name, (fieldIndexes[c].order == ascending) ? "ASC" : "DESC");
 979          if(c > 0) strcat(command, ", ");
 980          strcat(command, columnName);
 981       }
 982       strcat(command, ");");
 983       result = sqlite3_exec(db.db, command, null, null, null);
 984
 985       return result == SQLITE_OK;
 986    }
 987
 988    const String GetName()
 989    {
 990       return name;
 991    }
 992
 993    Field GetFirstField()
 994    {
 995       return _fields.first;
 996    }
 997
 998    Field GetPrimaryKey()
 999    {
1000       return primaryKey;
1001    }
1002
1003    uint GetFieldsCount()
1004    {
1005       return _fields.count;
1006    }
1007
1008    uint GetRowsCount()
1009    {
1010       char command[1024];
1011       char **t;
1012       int nCols, nRows;
1013       int result;
1014       uint rowCount = 0;
1015       sprintf(command, "SELECT COUNT(*) FROM `%s`;", name);
1016       result = sqlite3_get_table(db.db, command, &t, &nRows, &nCols, null);
1017       if(result == SQLITE_OK)
1018       {
1019          rowCount = atoi(t[1]);
1020          sqlite3_free_table(t);
1021       }
1022       return rowCount;
1023    }
1024
1025    // Returns true if not ordered by row ID
1026    bool GetIndexOrder(char * fullOrder, bool flip)
1027    {
1028       if(!flip && (!indexFields || (indexFieldsCount == 1 && indexFields[0].field == primaryKey && indexFields[0].order == ascending)))
1029       {
1030          strcpy(fullOrder, " ORDER BY ROWID");
1031          return false;
1032       }
1033       else
1034       {
1035          int c;
1036          strcpy(fullOrder, " ORDER BY ");
1037          for(c = flip ? indexFieldsCount-1 : 0; flip ? (c >= 0) : (c < indexFieldsCount); flip ? c-- : c++)
1038          {
1039             char order[1024];
1040             FieldIndex * fIndex = &indexFields[c];
1041             order[0] = 0;
1042             if(c) strcat(order, ", ");
1043             strcat(order, "`");
1044             strcat(order, fIndex->field.name);
1045             strcat(order, "`");
1046             if(fIndex->order == (flip ? ascending : descending)) strcat(order, " DESC");
1047             strcat(fullOrder, order);
1048          }
1049          return true;
1050       }
1051    }
1052
1053    Container<Field> GetFields()
1054    {
1055       return (Container<Field>)_fields;
1056    }
1057
1058    DriverRow CreateRow()
1059    {
1060       char command[1024];
1061       sqlite3_stmt * statement;
1062       sqlite3_stmt * sysIDStmt = null, * insertStmt = null, * deleteStmt = null, * selectRowIDsStmt = null, * setRowIDStmt = null;
1063       sqlite3_stmt * prevStmt = null, * nextStmt = null, * lastStmt = null, * insertIDStmt = null;
1064
1065       if(specialStatement)
1066          strcpy(command, specialStatement);
1067       else
1068       {
1069          char order[1024];
1070          /*sprintf(command, "SELECT ROWID, * FROM `%s` WHERE ? = ?;", name);
1071          sqlite3_prepare_v2(db.db, command, -1, &findStmt, null);*/
1072          sprintf(command, "SELECT ROWID, * FROM `%s` WHERE ROWID = ?;", name);
1073          sqlite3_prepare_v2(db.db, command, -1, &sysIDStmt, null);
1074
1075          sprintf(command, "INSERT INTO `%s` DEFAULT VALUES;", name);
1076          sqlite3_prepare_v2(db.db, command, -1, &insertStmt, null);
1077
1078          sprintf(command, "INSERT INTO `%s` (ROWID) VALUES(?);", name);
1079          sqlite3_prepare_v2(db.db, command, -1, &insertIDStmt, null);
1080
1081          sprintf(command, "DELETE FROM `%s` WHERE ROWID = ?;", name);
1082          sqlite3_prepare_v2(db.db, command, -1, &deleteStmt, null);
1083
1084          sprintf(command, "SELECT ROWID, * FROM `%s` WHERE ROWID < ? ORDER BY ROWID DESC LIMIT 1;", name);
1085          sqlite3_prepare_v2(db.db, command, -1, &prevStmt, null);
1086
1087          sprintf(command, "SELECT ROWID, * FROM `%s` WHERE ROWID > ? ORDER BY ROWID LIMIT 1;", name);
1088          sqlite3_prepare_v2(db.db, command, -1, &nextStmt, null);
1089
1090          sprintf(command, "SELECT MAX(ROWID), * FROM `%s`", name);
1091          sqlite3_prepare_v2(db.db, command, -1, &lastStmt, null);
1092
1093          /*sprintf(command, "UPDATE `%s` SET ? = ? WHERE ROWID = ?;", name);
1094
1095          sqlite3_prepare_v2(db.db, command, -1, &updateStmt, null);*/
1096
1097          GetIndexOrder(order, false);
1098          sprintf(command, "SELECT ROWID, * FROM `%s`%s;", name, order);
1099       }
1100       sqlite3_prepare_v2(db.db, command, -1, &statement, null);
1101
1102       sprintf(command, "SELECT ROWID FROM `%s` WHERE ROWID > ?", name);
1103       sqlite3_prepare_v2(db.db, command, -1, &selectRowIDsStmt, null);
1104
1105       sprintf(command, "UPDATE `%s` SET ROWID = ? WHERE ROWID = ?", name);
1106       sqlite3_prepare_v2(db.db, command, -1, &setRowIDStmt, null);
1107
1108       return SQLiteRow
1109          { tbl = this, defaultStatement = statement, curStatement = statement, sysIDStatement = sysIDStmt,
1110            insertStatement = insertStmt, deleteStatement = deleteStmt, selectRowIDsStmt = selectRowIDsStmt, setRowIDStmt = setRowIDStmt,
1111            previousStatement = prevStmt, nextStatement = nextStmt, lastStatement = lastStmt, insertIDStatement = insertIDStmt };
1112    }
1113
1114    ~SQLiteTable()
1115    {
1116       delete name;
1117       delete specialStatement;
1118       delete indexFields;
1119       _fields.Free();
1120    }
1121 }
1122
1123 class SQLiteRow : DriverRow
1124 {
1125    SQLiteTable tbl;
1126    sqlite3_stmt * curStatement;
1127
1128    sqlite3_stmt * defaultStatement;
1129    sqlite3_stmt * findStatement;
1130    sqlite3_stmt * prevFindStatement, * lastFindStatement;
1131    sqlite3_stmt * nextFindStatement;
1132    sqlite3_stmt * sysIDStatement;
1133    sqlite3_stmt * queryStatement;
1134    sqlite3_stmt * selectRowIDsStmt;
1135    sqlite3_stmt * setRowIDStmt;
1136    sqlite3_stmt * lastStatement;
1137    sqlite3_stmt * previousStatement;
1138    sqlite3_stmt * nextStatement;
1139
1140    sqlite3_stmt * insertStatement;
1141    sqlite3_stmt * deleteStatement;
1142    sqlite3_stmt * updateStatement;
1143    sqlite3_stmt * insertIDStatement;
1144    bool done;
1145    done = true;
1146    int64 rowID;
1147    // Because we use GoToSysID() and the sysIDStatement when searching for a primary key with Find(),
1148    // this flag is used to distinguish between a Find() and a GoToSysID() for Select(next) purposes:
1149    bool findSysID;
1150    int findBindId;
1151
1152    bool Nil()
1153    {
1154       return done;
1155    }
1156
1157    ~SQLiteRow()
1158    {
1159       if(defaultStatement) sqlite3_finalize(defaultStatement);
1160       if(findStatement)    sqlite3_finalize(findStatement);
1161       if(prevFindStatement)sqlite3_finalize(prevFindStatement);
1162       if(lastFindStatement)sqlite3_finalize(lastFindStatement);
1163       if(nextFindStatement)sqlite3_finalize(nextFindStatement);
1164       if(sysIDStatement)   sqlite3_finalize(sysIDStatement);
1165       if(insertStatement)  sqlite3_finalize(insertStatement);
1166       if(deleteStatement)  sqlite3_finalize(deleteStatement);
1167       if(updateStatement)  sqlite3_finalize(updateStatement);
1168       if(queryStatement)   sqlite3_finalize(queryStatement);
1169       if(selectRowIDsStmt) sqlite3_finalize(selectRowIDsStmt);
1170       if(setRowIDStmt)     sqlite3_finalize(setRowIDStmt);
1171       if(previousStatement)sqlite3_finalize(previousStatement);
1172       if(nextStatement)    sqlite3_finalize(nextStatement);
1173       if(lastStatement)    sqlite3_finalize(lastStatement);
1174       if(insertIDStatement)    sqlite3_finalize(insertIDStatement);
1175    }
1176
1177    bool Select(MoveOptions move)
1178    {
1179       int result;
1180       bool stepping = curStatement == previousStatement || curStatement == nextStatement || curStatement == lastStatement;
1181       if(!curStatement)
1182          curStatement = defaultStatement;
1183       switch(move)
1184       {
1185          case first:
1186          {
1187             sqlite3_reset(curStatement);
1188             result = sqlite3_step(curStatement);
1189             done = result == SQLITE_DONE || (result && result != SQLITE_ROW);
1190             if(done) { rowID = 0; sqlite3_reset(curStatement); return false; }
1191             rowID = sqlite3_column_int64(curStatement, 0);
1192             break;
1193          }
1194          case last:
1195          {
1196             sqlite3_reset(curStatement);
1197             curStatement = lastStatement;
1198             result = sqlite3_step(curStatement);
1199             done = result == SQLITE_DONE || (result && result != SQLITE_ROW);
1200             if(done) { rowID = 0; sqlite3_reset(curStatement); return false; }
1201             rowID = sqlite3_column_int64(curStatement, 0);
1202             break;
1203          }
1204          case middle:
1205             break;
1206          case next:
1207          case previous:
1208          {
1209             // For sysID statement, for a Find() we want to go through next/previous in order, otherwise we just go to nil
1210             if((move == next && curStatement != prevFindStatement && curStatement != lastFindStatement && !stepping && (curStatement != sysIDStatement || findSysID)) ||
1211                (move == previous && (curStatement == prevFindStatement || curStatement == lastFindStatement)))
1212             {
1213                result = sqlite3_step(curStatement);
1214                done = result == SQLITE_DONE || (result && result != SQLITE_ROW);
1215                if(done) { rowID = 0; sqlite3_reset(curStatement); return false; }
1216                rowID = sqlite3_column_int64(curStatement, 0);
1217             }
1218             else if(curStatement == prevFindStatement || curStatement == findStatement || curStatement == nextFindStatement || curStatement == lastFindStatement)
1219             {
1220                if(rowID)
1221                {
1222                   int bindId = findBindId;
1223                   sqlite3_reset((move == next) ? nextFindStatement : prevFindStatement);
1224                   BindCursorData((move == next) ? nextFindStatement : prevFindStatement, move,
1225                      (move == next && (!tbl.indexFields || (tbl.indexFieldsCount == 1 && tbl.indexFields[0].field == tbl.primaryKey && tbl.indexFields[0].order == ascending))) ? false : true, &bindId);
1226                   sqlite3_reset(curStatement);
1227                   curStatement = (move == next) ? nextFindStatement : prevFindStatement;
1228                   result = sqlite3_step(curStatement);
1229                   done = result == SQLITE_DONE || (result && result != SQLITE_ROW);
1230                   if(done) { rowID = 0; sqlite3_reset(curStatement); return false; }
1231                   rowID = sqlite3_column_int64(curStatement, 0);
1232                }
1233                else
1234                {
1235                   sqlite3_reset((move == next) ? findStatement : lastFindStatement);
1236                   sqlite3_reset(curStatement);
1237                   curStatement = (move == next) ? findStatement : lastFindStatement;
1238                   result = sqlite3_step(curStatement);
1239                   done = result == SQLITE_DONE || (result && result != SQLITE_ROW);
1240                   if(done) { rowID = 0; sqlite3_reset(curStatement); return false; }
1241                   rowID = sqlite3_column_int64(curStatement, 0);
1242                }
1243             }
1244             else
1245             {
1246                sqlite3_reset(curStatement);
1247                curStatement = (move == previous) ? (rowID ? previousStatement : lastStatement) : (rowID ? nextStatement : defaultStatement);
1248                sqlite3_bind_int64(curStatement, 1, (sqlite3_int64)rowID);
1249                result = sqlite3_step(curStatement);
1250                done = result == SQLITE_DONE || (result && result != SQLITE_ROW);
1251                if(done) { rowID = 0; sqlite3_reset(curStatement); return false; }
1252                rowID = sqlite3_column_int64(curStatement, 0);
1253             }
1254             break;
1255          }
1256          case nil:
1257             sqlite3_reset(curStatement);
1258             rowID = 0;
1259             done = true;
1260             break;
1261          case here:
1262             break;
1263       }
1264       return true;
1265    }
1266
1267    bool Query(const char * queryString)
1268    {
1269       bool status = true;
1270       int result;
1271
1272       if(curStatement)
1273          sqlite3_reset(curStatement);
1274       if(queryStatement)
1275       {
1276          sqlite3_finalize(queryStatement);
1277          queryStatement = null;
1278       }
1279
1280       if(queryString)
1281       {
1282          result = sqlite3_prepare_v2(tbl.db.db, queryString, -1, &queryStatement, null);
1283          if(!result)
1284          {
1285             curStatement = queryStatement;
1286             if(!strchr(queryString, '?'))
1287             {
1288                result = sqlite3_step(queryStatement);
1289
1290                done = result == SQLITE_DONE || (result && result != SQLITE_ROW);
1291                if(done) { rowID = 0; sqlite3_reset(queryStatement); return false; }
1292
1293                rowID = sqlite3_column_int64(queryStatement, 0);
1294             }
1295          }
1296          else
1297             status = false;
1298       }
1299       else
1300          curStatement = null;
1301       return status;
1302    }
1303
1304    bool BindData(sqlite3_stmt * statement, int pos, SQLiteField fld, typed_object data, SerialBuffer * bufferOut)
1305    {
1306       int result = 1;
1307       Class dataType = fld.type;
1308       SerialBuffer buffer = null;
1309       switch(fld.sqliteType)
1310       {
1311          case SQLITE_INTEGER:
1312          {
1313             switch(dataType.typeSize)
1314             {
1315                case 8:
1316                   result = sqlite3_bind_int64(statement, pos, (sqlite3_int64)*(int64 *)data);
1317                   break;
1318                case 4:
1319                   result = sqlite3_bind_int(statement, pos, *(int *)data);
1320                   break;
1321                case 2:
1322                {
1323                   int value;
1324                   if((int)data < 0)
1325                      value = (int)*(short *)data;
1326                   else
1327                      value = (int)*(uint16 *)data;
1328                   result = sqlite3_bind_int(statement, pos, value);
1329                   break;
1330                }
1331                case 1:
1332                {
1333                   int value;
1334                   if((int)data < 0)
1335                      value = (int)*(char *)data;
1336                   else
1337                      value = (int)*(byte *)data;
1338                   result = sqlite3_bind_int(statement, pos, value);
1339                   break;
1340                }
1341             }
1342             break;
1343          }
1344          case SQLITE_FLOAT:
1345          {
1346             if(dataType.typeSize == 8)
1347                result = sqlite3_bind_double(statement, pos, *(double *)data);
1348             else
1349                result = sqlite3_bind_double(statement, pos, (double)*(float *)data);
1350             break;
1351          }
1352          case SQLITE_TEXT:
1353          {
1354             if((char *)data)
1355                result = sqlite3_bind_text(statement, pos, (char *)data, strlen((char *)data), SQLITE_TRANSIENT);
1356             else
1357                result = sqlite3_bind_null(statement, pos);
1358             break;
1359          }
1360          case SQLITE_BLOB:
1361          case SQLITE_NULL:
1362          {
1363             if((void *)data)
1364             {
1365                buffer = SerialBuffer { };
1366                ((void (*)(void *, void *, void *))(void *)dataType._vTbl[__ecereVMethodID_class_OnSerialize])(dataType, data, buffer);
1367                result = sqlite3_bind_text(statement, pos, (char *)buffer._buffer, buffer.count, SQLITE_TRANSIENT);
1368             }
1369             else
1370                result = sqlite3_bind_null(statement, pos);
1371             break;
1372          }
1373       }
1374       if(bufferOut)
1375          *bufferOut = buffer;
1376       else
1377          delete buffer;
1378       return !result;
1379    }
1380
1381    void AddCursorWhereClauses(char * command, MoveOptions move, bool useIndex)
1382    {
1383       if(move == next || move == previous)
1384       {
1385          // Where clauses for index
1386          if(useIndex)
1387          {
1388             int c;
1389             bool gotPrimaryKey = false;
1390
1391             strcatf(command, " AND (");
1392             for(c = ((move == next) ? 0 : tbl.indexFieldsCount-1); (move == next) ? c < tbl.indexFieldsCount : c >= 0; (move == next) ? c++ : c--)
1393             {
1394                char where[1024];
1395                FieldIndex * fIndex = &tbl.indexFields[c];
1396                where[0] = 0;
1397
1398                strcat(where, "`");
1399                strcat(where, fIndex->field.name);
1400                strcat(where, "` ");
1401                strcat(where, (fIndex->order == ((move == next) ? descending : ascending)) ? "<" : ">");
1402                strcat(where, " ? OR (");
1403                strcat(where, fIndex->field.name);
1404                if(fIndex->field == tbl.primaryKey)
1405                   gotPrimaryKey = true;
1406                strcat(where, " = ? AND (");
1407                strcat(command, where);
1408             }
1409             strcat(command, gotPrimaryKey ? "1)" : ((move == next) ? "ROWID > ?)" : "ROWID < ?)"));
1410             for(c = 0; c < tbl.indexFieldsCount; c++)
1411                strcat(command, "))");
1412          }
1413          else
1414             strcatf(command, (move == next) ? " AND ROWID > ?" : " AND ROWID < ?");
1415       }
1416    }
1417
1418    void BindCursorData(sqlite3_stmt * stmt, MoveOptions move, bool useIndex, int * bindId)
1419    {
1420       if(move == next || move == previous)
1421       {
1422          // The binds for the Extra ordering Where clauses
1423          if(useIndex)
1424          {
1425             int c;
1426             /* // Code to not rely on curStatement being set up
1427             SQLiteRow dataRow = (SQLiteRow)tbl.CreateRow();
1428             dataRow.GoToSysID((uint)rowID);
1429             */
1430             for(c = ((move == next) ? 0 : tbl.indexFieldsCount-1); (move == next) ? c < tbl.indexFieldsCount : c >= 0; (move == next) ? c++ : c--)
1431             {
1432                FieldIndex * fIndex = &tbl.indexFields[c];
1433                int64 data;
1434                SQLiteField fld = (SQLiteField)fIndex->field;
1435                Class type = fld.type;
1436                void * dataPtr;
1437                SerialBuffer buffer;
1438
1439                if(type.type == unitClass && !type.typeSize)
1440                {
1441                   Class dataType = eSystem_FindClass(type.module, type.dataTypeString);
1442                   if(dataType)
1443                      type = dataType;
1444                }
1445                if(type.type == structClass)
1446                {
1447                   data = (int64)(intptr)new0 byte[type.structSize];
1448                   dataPtr = (void *)(intptr)data;
1449                }
1450                // ((bool (*)())(void *)dataRow.GetData)(dataRow, fld, type, (type.type == structClass) ? (void *)data : &data);
1451                ((bool (*)())(void *)this.GetData)(this, fld, type, (type.type == structClass) ? (void *)(intptr)data : &data);
1452                if(type.type == normalClass || type.type == noHeadClass)
1453                   dataPtr = (void *)(intptr)data;
1454                else
1455                   dataPtr = &data;
1456                ((bool (*)())(void *)this.BindData)(this, stmt, (*bindId)++, fld, type, dataPtr, &buffer);
1457                // NOTE: The data is bound twice, for there are 2x '?' in the query from AddCursorWhereClauses
1458                // Reuse the buffer for Blobs...
1459                if(fld.sqliteType == SQLITE_BLOB || fld.sqliteType == SQLITE_NULL)
1460                {
1461                   sqlite3_bind_text(stmt, (*bindId)++, (char *)buffer._buffer, buffer.count, SQLITE_TRANSIENT);
1462                   delete buffer;
1463                }
1464                else
1465                   ((bool (*)())(void *)this.BindData)(this, stmt, (*bindId)++, fld, type, dataPtr, null);
1466
1467                ((void (*)(void *, void *))(void *)type._vTbl[__ecereVMethodID_class_OnFree])(type, dataPtr);
1468             }
1469             // delete dataRow;
1470          }
1471
1472          // Bind for the rowid
1473          sqlite3_bind_int64(stmt, (*bindId)++, (sqlite3_int64)rowID);
1474       }
1475    }
1476
1477    bool Find(Field fld, MoveOptions move, MatchOptions match, typed_object data)
1478    {
1479       char order[1024], command[2048];
1480       int result;
1481       bool useIndex;
1482       sqlite3_stmt * stmt = null;
1483       int bindId = 1;
1484
1485       if(fld == tbl.primaryKey)
1486       {
1487          if(curStatement) { sqlite3_reset(curStatement); curStatement = null; }
1488          if(findStatement) { sqlite3_finalize(findStatement); findStatement = null; }
1489          if(nextFindStatement) { sqlite3_finalize(nextFindStatement); nextFindStatement = null; }
1490          if(prevFindStatement) { sqlite3_finalize(prevFindStatement); prevFindStatement = null; }
1491          if(lastFindStatement) { sqlite3_finalize(lastFindStatement); lastFindStatement = null; }
1492          result = GoToSysID(*(int *)data);
1493          if(result)
1494             findSysID = true;
1495          return result != 0;
1496       }
1497
1498       useIndex = tbl.GetIndexOrder(order, false);
1499       // Basic Find
1500       sprintf(command, "SELECT ROWID, * FROM `%s` WHERE `%s` = ?", tbl.name, fld.name);
1501       AddCursorWhereClauses(command, move, useIndex);
1502       strcat(command, order);
1503       strcat(command, ";");
1504       result = sqlite3_prepare_v2(tbl.db.db, command, -1, &stmt, null);
1505       BindData(stmt, bindId++, (SQLiteField)fld, data, null);
1506       BindCursorData(stmt, move, useIndex, &bindId);
1507
1508       // Currently, we can't reset curStatement until after BindCursorData, as current data is read from it
1509       if(curStatement) { sqlite3_reset(curStatement); curStatement = null; }
1510       if(findStatement) { sqlite3_finalize(findStatement); findStatement = null; }
1511       if(nextFindStatement) { sqlite3_finalize(nextFindStatement); nextFindStatement = null; }
1512       if(prevFindStatement) { sqlite3_finalize(prevFindStatement); prevFindStatement = null; }
1513       if(lastFindStatement) { sqlite3_finalize(lastFindStatement); lastFindStatement = null; }
1514
1515       curStatement = findStatement = stmt;
1516       findBindId = bindId;
1517
1518       // For going back to forward find
1519       bindId = 1;
1520       sprintf(command, "SELECT ROWID, * FROM `%s` WHERE `%s` = ?", tbl.name, fld.name);
1521       AddCursorWhereClauses(command, next, useIndex);
1522       strcat(command, order);
1523       strcat(command, ";");
1524       result = sqlite3_prepare_v2(tbl.db.db, command, -1, &stmt, null);
1525       BindData(stmt, bindId++, (SQLiteField)fld, data, null);
1526       nextFindStatement = stmt;
1527
1528       // Backwards
1529       tbl.GetIndexOrder(order, true);
1530       // For tracing back finds
1531       bindId = 1;
1532       sprintf(command, "SELECT ROWID, * FROM `%s` WHERE `%s` = ?", tbl.name, fld.name);
1533       AddCursorWhereClauses(command, previous, true);
1534       strcat(command, order);
1535       strcat(command, ";");
1536       result = sqlite3_prepare_v2(tbl.db.db, command, -1, &stmt, null);
1537       BindData(stmt, bindId++, (SQLiteField)fld, data, null);
1538       prevFindStatement = stmt;
1539
1540       // For tracing back from last
1541       bindId = 1;
1542       sprintf(command, "SELECT ROWID, * FROM `%s` WHERE `%s` = ?", tbl.name, fld.name);
1543       strcat(command, order);
1544       strcat(command, ";");
1545       result = sqlite3_prepare_v2(tbl.db.db, command, -1, &stmt, null);
1546       BindData(stmt, bindId++, (SQLiteField)fld, data, null);
1547       lastFindStatement = stmt;
1548
1549       result = sqlite3_step(findStatement);
1550
1551       done = result == SQLITE_DONE || (result && result != SQLITE_ROW);
1552       if(done)
1553       {
1554          rowID = 0;
1555          sqlite3_reset(findStatement);
1556       }
1557       else
1558          rowID = sqlite3_column_int64(findStatement, 0);
1559       return !done;
1560    }
1561
1562    bool FindMultiple(FieldFindData * findData, MoveOptions move, int numFields)
1563    {
1564 #define BINDDATA \
1565          for(c = 0; c < numFields; c++) \
1566          { \
1567             FieldFindData * fieldFind = &findData[c]; \
1568             SQLiteField sqlFld = (SQLiteField)findData->field; \
1569             Class dataType = sqlFld.type; \
1570             BindData(stmt, bindId++, sqlFld, (dataType.type == structClass || dataType.type == noHeadClass || dataType.type == normalClass) ? fieldFind->value.p : &fieldFind->value.i, null); \
1571          }
1572
1573       if(numFields)
1574       {
1575          char criterias[4096], command[4096], order[1024];
1576          int result;
1577          int c;
1578          bool useIndex;
1579          sqlite3_stmt * stmt = null;
1580          int bindId = 1;
1581
1582          // Criterias
1583          sprintf(criterias, "SELECT ROWID, * FROM `%s` WHERE `", tbl.name);
1584          for(c = 0; c < numFields; c++)
1585          {
1586             FieldFindData * fieldFind = &findData[c];
1587
1588             if(c) strcat(criterias, " AND `");
1589             strcat(criterias, fieldFind->field.name);
1590             strcat(criterias, "` = ?");
1591          }
1592
1593          useIndex = tbl.GetIndexOrder(order, false);
1594          // Basic Find (multiple)
1595          strcpy(command, criterias);
1596          AddCursorWhereClauses(command, move, useIndex);
1597          strcat(command, order);
1598          strcat(command, ";");
1599          result = sqlite3_prepare_v2(tbl.db.db, command, -1, &stmt, null);
1600          BINDDATA;
1601          BindCursorData(stmt, move, useIndex, &bindId);
1602
1603          // Currently, we can't reset curStatement until after BindCursorData, as current data is read from it
1604          if(curStatement) { sqlite3_reset(curStatement); curStatement = null; }
1605          if(findStatement) { sqlite3_finalize(findStatement); findStatement = null; }
1606          if(nextFindStatement) { sqlite3_finalize(nextFindStatement); nextFindStatement = null; }
1607          if(prevFindStatement) { sqlite3_finalize(prevFindStatement); prevFindStatement = null; }
1608          if(lastFindStatement) { sqlite3_finalize(lastFindStatement); lastFindStatement = null; }
1609
1610          curStatement = findStatement = stmt;
1611          findBindId = bindId;
1612
1613          // For tracing back forward finds
1614          bindId = 1;
1615          strcpy(command, criterias);
1616          AddCursorWhereClauses(command, previous, true);
1617          strcat(command, order);
1618          strcat(command, ";");
1619          result = sqlite3_prepare_v2(tbl.db.db, command, -1, &stmt, null);
1620          BINDDATA;
1621          nextFindStatement = stmt;
1622
1623          // Backwards
1624          tbl.GetIndexOrder(order, true);
1625          // For tracing back finds
1626          bindId = 1;
1627          strcpy(command, criterias);
1628          AddCursorWhereClauses(command, next, useIndex);
1629          strcat(command, order);
1630          strcat(command, ";");
1631          result = sqlite3_prepare_v2(tbl.db.db, command, -1, &stmt, null);
1632          BINDDATA;
1633          prevFindStatement = stmt;
1634
1635          // For tracing back from last
1636          bindId = 1;
1637          strcpy(command, criterias);
1638          strcat(command, order);
1639          strcat(command, ";");
1640          result = sqlite3_prepare_v2(tbl.db.db, command, -1, &stmt, null);
1641          BINDDATA;
1642          lastFindStatement = stmt;
1643
1644          result = sqlite3_step(findStatement);
1645          done = result == SQLITE_DONE || (result && result != SQLITE_ROW);
1646          if(done)
1647          {
1648             rowID = 0;
1649             sqlite3_reset(findStatement);
1650          }
1651          else
1652             rowID = sqlite3_column_int64(findStatement, 0);
1653          return !done;
1654       }
1655       return false;
1656    }
1657
1658    bool Synch(DriverRow to)
1659    {
1660       SQLiteRow rowTo = (SQLiteRow)to;
1661       if(tbl && rowTo.tbl && !strcmp(tbl.name, rowTo.tbl.name))
1662          return GoToSysID((uint)rowTo.rowID);
1663       return false;
1664    }
1665
1666    bool Add(uint64 id)
1667    {
1668       int result;
1669       //char command[1024];
1670       //sprintf(command, "INSERT INTO `%s` DEFAULT VALUES;", tbl.name);
1671       //result = sqlite3_exec(tbl.db.db, command, null, null, null);
1672       if(id)
1673       {
1674          sqlite3_bind_int64(insertIDStatement, 1, (sqlite3_int64)id);
1675          result = sqlite3_step(insertIDStatement);
1676       }
1677       else
1678          result = sqlite3_step(insertStatement);
1679       if(result == SQLITE_DONE)     // if(result == SQLITE_OK)
1680       {
1681          rowID = sqlite3_last_insert_rowid(tbl.db.db);
1682          if(rowID > MAXDWORD)
1683          {
1684             int64 lastID = tbl.lastID;
1685
1686             sqlite3_bind_int64(selectRowIDsStmt, 1, (sqlite3_int64)lastID);
1687             while(true)
1688             {
1689                int64 id;
1690                result = sqlite3_step(selectRowIDsStmt);
1691                if(result == SQLITE_DONE || result != SQLITE_ROW) break;
1692                id = sqlite3_column_int64(selectRowIDsStmt, 0);
1693                if(id - lastID > 1) break;
1694                lastID = id;
1695             }
1696             sqlite3_reset(selectRowIDsStmt);
1697
1698             sqlite3_bind_int64(setRowIDStmt, 2, (sqlite3_int64)rowID);
1699             rowID = lastID + 1;
1700             tbl.lastID = rowID;
1701             sqlite3_bind_int64(setRowIDStmt, 1, (sqlite3_int64)rowID);
1702             result = sqlite3_step(setRowIDStmt);
1703             sqlite3_reset(setRowIDStmt);
1704          }
1705          sqlite3_reset(id ? insertIDStatement : insertStatement);
1706          curStatement = sysIDStatement;
1707          findSysID = false;
1708          sqlite3_reset(curStatement);
1709          sqlite3_bind_int64(sysIDStatement, 1, (sqlite3_int64)rowID);
1710          result = sqlite3_step(curStatement);
1711          done = false; // Make sure 'nil' is false
1712          return true;
1713       }
1714       sqlite3_reset(insertStatement);
1715       return false;
1716    }
1717
1718    bool Delete()
1719    {
1720       int result;
1721       //char command[1024];
1722       //sprintf(command, "DELETE FROM `%s` WHERE ROWID = %d;", tbl.name, rowID);
1723       //result = sqlite3_exec(tbl.db.db, command, null, null, null);
1724       sqlite3_bind_int64(deleteStatement, 1, (sqlite3_int64)rowID);
1725       result = sqlite3_step(deleteStatement);
1726       sqlite3_reset(deleteStatement);
1727       rowID = 0;
1728       return result == SQLITE_OK || result == SQLITE_DONE;
1729    }
1730
1731    bool GetData(Field fld, typed_object &data)
1732    {
1733       SQLiteField sqlFld = (SQLiteField)fld;
1734       int num = sqlFld.num + 1;
1735       Class dataType = sqlFld.type;
1736
1737
1738       switch(sqlFld.sqliteType)
1739       {
1740          case SQLITE_INTEGER:
1741          {
1742             switch(dataType.typeSize)
1743             {
1744                case 8:
1745                   if(fld == tbl.primaryKey)
1746                      *(int64 *)data = rowID;
1747                   else
1748                      *(int64 *)data = sqlite3_column_int64(curStatement, num);
1749                   break;
1750                case 4:
1751                   if(fld == tbl.primaryKey)
1752                      *(int *)data = (int)(uint)rowID;
1753                   else
1754                      *(int *)data = sqlite3_column_int(curStatement, num);
1755                   break;
1756                case 2:
1757                {
1758                   int value;
1759                   if(fld == tbl.primaryKey)
1760                      value = (int)(uint)rowID;
1761                   else
1762                      value = sqlite3_column_int(curStatement, num);
1763                   if(value < 0)
1764                      *(short *)data = (short)value;
1765                   else
1766                      *(uint16 *)data = (uint16)value;
1767                   break;
1768                }
1769                case 1:
1770                {
1771                   int value;
1772                   if(fld == tbl.primaryKey)
1773                      value = (int)(uint)rowID;
1774                   else
1775                      value = sqlite3_column_int(curStatement, num);
1776                   if(value < 0)
1777                      *(char *)data = (char)value;
1778                   else
1779                      *(byte *)data = (byte)value;
1780                   break;
1781                }
1782             }
1783             break;
1784          }
1785          case SQLITE_FLOAT:
1786          {
1787             double d = sqlite3_column_double(curStatement, num);
1788             if(dataType.typeSize == 8)
1789                *(double *)data = d;
1790             else
1791                *(float *)data = (float)d;
1792             break;
1793          }
1794          case SQLITE_TEXT:
1795          {
1796             int numBytes = sqlite3_column_bytes(curStatement, num);
1797             const char * text = (const char *)sqlite3_column_text(curStatement, num);
1798             *(char **)data = text ? new byte[numBytes+1] : null;
1799             if(text)
1800                memcpy(*(char **)data, text, numBytes+1);
1801             break;
1802          }
1803          case SQLITE_BLOB:
1804          {
1805             SerialBuffer buffer { };
1806             //buffer._buffer = sqlite3_column_blob(curStatement, num);
1807             buffer._size = sqlite3_column_bytes(curStatement, num);
1808             buffer._buffer = (byte *)sqlite3_column_text(curStatement, num);
1809             buffer.count = buffer._size;
1810
1811             ((void (*)(void *, void *, void *))(void *)dataType._vTbl[__ecereVMethodID_class_OnUnserialize])(dataType, data, buffer);
1812
1813             buffer._buffer = null;
1814             delete buffer;
1815             break;
1816          }
1817       }
1818       return true;
1819    }
1820
1821    bool SetData(Field fld, typed_object data)
1822    {
1823       SQLiteField sqlFld = (SQLiteField)fld;
1824       int result;
1825       char command[1024];
1826
1827       if(updateStatement)
1828          sqlite3_finalize(updateStatement);
1829       sprintf(command, "UPDATE `%s` SET `%s` = ? WHERE ROWID = ?;", tbl.name, sqlFld.name);
1830       result = sqlite3_prepare_v2(tbl.db.db, command, -1, &updateStatement, null);
1831       sqlite3_bind_int64(updateStatement, 2, (sqlite3_int64)rowID);
1832       BindData(updateStatement, 1, (SQLiteField)fld, data, null);
1833       result = sqlite3_step(updateStatement);
1834       sqlite3_reset(updateStatement);
1835       if(fld == tbl.primaryKey)
1836          rowID = *(uint *)data;
1837       return result == SQLITE_DONE;
1838    }
1839
1840    int GetSysID()
1841    {
1842       return (int)(uint)rowID;
1843    }
1844
1845    bool GoToSysID(uint id)
1846    {
1847       //char command[1024];
1848       int result;
1849       rowID = (uint)id;
1850       //if(statement)
1851          //sqlite3_finalize(statement);
1852       //sprintf(command, "SELECT ROWID, * FROM `%s` WHERE ROWID = ?;", tbl.name);
1853       //result = sqlite3_prepare_v2(tbl.db.db, command, -1, &statement, null);
1854
1855       findSysID = false;
1856       if(curStatement)
1857          sqlite3_reset(curStatement);
1858
1859       curStatement = sysIDStatement;
1860       sqlite3_reset(sysIDStatement);
1861       sqlite3_bind_int64(curStatement, 1, (sqlite_int64)rowID);
1862       result = sqlite3_step(curStatement);
1863       done = result == SQLITE_DONE || (result && result != SQLITE_ROW);
1864       if(done) { rowID = 0; sqlite3_reset(curStatement); return false; }
1865       return !done;
1866    }
1867
1868    bool SetQueryParam(int paramID, int value)
1869    {
1870       int result;
1871       if(curStatement != queryStatement)
1872       {
1873          if(curStatement) sqlite3_reset(curStatement);
1874          curStatement = queryStatement;
1875       }
1876       sqlite3_reset(queryStatement);
1877       result = sqlite3_bind_int(queryStatement, paramID, value);
1878       return !result;
1879    }
1880
1881    bool SetQueryParam64(int paramID, int64 value)
1882    {
1883       int result;
1884       if(curStatement != queryStatement)
1885       {
1886          if(curStatement) sqlite3_reset(curStatement);
1887          curStatement = queryStatement;
1888       }
1889       sqlite3_reset(queryStatement);
1890       result = sqlite3_bind_int64(queryStatement, paramID, (sqlite_int64)value);
1891       return !result;
1892    }
1893
1894    bool SetQueryParamText(int paramID, const char * data)
1895    {
1896       int result;
1897       if(curStatement != queryStatement)
1898       {
1899          if(curStatement) sqlite3_reset(curStatement);
1900          curStatement = queryStatement;
1901       }
1902       sqlite3_reset(queryStatement);
1903       if(data)
1904          result = sqlite3_bind_text(queryStatement, paramID, (char *)data, strlen((char *)data), SQLITE_TRANSIENT);
1905       else
1906          result = sqlite3_bind_text(queryStatement, paramID, null, 0, SQLITE_TRANSIENT);
1907       return !result;
1908    }
1909
1910    bool SetQueryParamObject(int paramID, const void * data, Class type)
1911    {
1912       int result;
1913       if(curStatement != queryStatement)
1914       {
1915          if(curStatement) sqlite3_reset(curStatement);
1916          curStatement = queryStatement;
1917       }
1918       sqlite3_reset(queryStatement);
1919       {
1920          SerialBuffer buffer { };
1921          ((void (*)(void *, const void *, void *))(void *)type._vTbl[__ecereVMethodID_class_OnSerialize])(type, data, buffer);
1922          result = sqlite3_bind_text(queryStatement, paramID, (char *)buffer._buffer, buffer.count, SQLITE_TRANSIENT);
1923          delete buffer;
1924       }
1925       return !result;
1926    }
1927
1928    bool BindQueryData(int pos, SQLiteField fld, typed_object data)
1929    {
1930       if(curStatement != queryStatement)
1931       {
1932          if(curStatement) sqlite3_reset(curStatement);
1933          curStatement = queryStatement;
1934       }
1935       sqlite3_reset(queryStatement);
1936       return BindData(queryStatement, pos, fld, data, null);
1937    }
1938
1939    /*char * GetExtraColumn(int paramID)
1940    {
1941       SQLiteField lastFld = tbl._fields.last;
1942       return sqlite3_column_text(curStatement, lastFld.num + 1 + paramID);
1943    }*/
1944    const char * GetColumn(int paramID)
1945    {
1946       return (const char *)sqlite3_column_text(curStatement, paramID);
1947    }
1948 }