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root/public/ibx/trunk/runtime/IBCustomDataSet.pas
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Comparing ibx/trunk/runtime/IBCustomDataSet.pas (file contents):
Revision 11 by tony, Tue Oct 9 08:10:32 2012 UTC vs.
Revision 118 by tony, Mon Jan 22 13:58:14 2018 UTC

# Line 27 | Line 27
27   {    IBX For Lazarus (Firebird Express)                                  }
28   {    Contributor: Tony Whyman, MWA Software http://www.mwasoftware.co.uk }
29   {    Portions created by MWA Software are copyright McCallum Whyman      }
30 < {    Associates Ltd 2011                                                 }
30 > {    Associates Ltd 2011 - 2015                                          }
31   {                                                                        }
32   {************************************************************************}
33  
34   unit IBCustomDataSet;
35  
36 + {$R-}
37 +
38 + {$IFDEF FPC}
39   {$Mode Delphi}
40 + {$codepage UTF8}
41 + {$ENDIF}
42  
43   {$IFDEF DELPHI}
44   {$DEFINE TDBDFIELD_IS_BCD}
# Line 47 | Line 52 | uses
52   {$ELSE}
53    unix,
54   {$ENDIF}
55 <  SysUtils, Classes, Forms, Controls, IBDatabase,
56 <  IBExternals, IB, IBHeader,  IBSQL, Db,
52 <  IBUtils, IBBlob;
55 >  SysUtils, Classes, IBDatabase, IBExternals, IB,  IBSQL, Db,
56 >  IBUtils, IBBlob, IBSQLParser, IBDatabaseInfo;
57  
58   const
59    BufferCacheSize    =  1000;  { Allocate cache in this many record chunks}
# Line 70 | Line 74 | type
74      procedure SetDataSet(ADataSet: TIBCustomDataSet); virtual; abstract;
75      procedure Apply(UpdateKind: TUpdateKind; buff: PChar); virtual; abstract;
76      function GetSQL(UpdateKind: TUpdateKind): TStrings; virtual; abstract;
77 <    procedure InternalSetParams(Query: TIBSQL; buff: PChar);
77 >    procedure InternalSetParams(Params: ISQLParams; buff: PChar); overload;
78 >    procedure InternalSetParams(Query: TIBSQL; buff: PChar); overload;
79 >    procedure UpdateRecordFromQuery(UpdateKind: TUpdateKind; QryResults: IResults; Buffer: PChar);
80      property DataSet: TIBCustomDataSet read GetDataSet write SetDataSet;
81    public
82      constructor Create(AOwner: TComponent); override;
# Line 81 | Line 87 | type
87  
88    TBlobDataArray = array[0..0] of TIBBlobStream;
89    PBlobDataArray = ^TBlobDataArray;
90 +  TIBArrayField = class;
91  
92 <  { TIBCustomDataSet }
93 <  TFieldData = record
94 <    fdDataType: Short;
95 <    fdDataScale: Short;
96 <    fdNullable: Boolean;
97 <    fdIsNull: Boolean;
98 <    fdDataSize: Short;
99 <    fdDataLength: Short;
100 <    fdDataOfs: Integer;
92 >  { TIBArray }
93 >
94 >  {Wrapper class to support array cache in TIBCustomDataset and event handling}
95 >
96 >  TIBArray = class
97 >  private
98 >    FArray: IArray;
99 >    FRecNo: integer;
100 >    FField: TIBArrayField;
101 >    procedure EventHandler(Sender: IArray; Reason: TArrayEventReason);
102 >  public
103 >    constructor Create(aField: TIBArrayField; anArray: IArray);
104 >    destructor Destroy; override;
105 >    property ArrayIntf: IArray read FArray;
106    end;
107 <  PFieldData = ^TFieldData;
107 >
108 >  TArrayDataArray = array [0..0] of TIBArray;
109 >  PArrayDataArray = ^TArrayDataArray;
110 >
111 >  { TIBCustomDataSet }
112  
113    TCachedUpdateStatus = (
114                           cusUnmodified, cusModified, cusInserted,
# Line 103 | Line 119 | type
119    end;
120    PIBDBKey = ^TIBDBKey;
121  
122 +  PFieldData = ^TFieldData;
123 +  TFieldData = record
124 +   fdIsNull: Boolean;
125 +   fdDataLength: Short;
126 + end;
127 +
128 + PColumnData = ^TColumnData;
129 + TColumnData = record
130 +  fdDataType: Short;
131 +  fdDataScale: Short;
132 +  fdNullable: Boolean;
133 +  fdDataSize: Short;
134 +  fdDataOfs: Integer;
135 +  fdCodePage: TSystemCodePage;
136 + end;
137 +
138 + PFieldColumns = ^TFieldColumns;
139 + TFieldColumns =  array[1..1] of TColumnData;
140 +
141    TRecordData = record
142      rdBookmarkFlag: TBookmarkFlag;
143      rdFieldCount: Short;
# Line 115 | Line 150 | type
150    end;
151    PRecordData = ^TRecordData;
152  
153 +  { TIBArrayField }
154 +
155 +  TIBArrayField = class(TField)
156 +  private
157 +    FArrayBounds: TArrayBounds;
158 +    FArrayDimensions: integer;
159 +    FRelationName: string;
160 +    FCacheOffset: word;
161 +    function GetArrayID: TISC_QUAD;
162 +    function GetArrayIntf: IArray;
163 +    procedure SetArrayIntf(AValue: IArray);
164 +  protected
165 +    class procedure CheckTypeSize(AValue: Longint); override;
166 +    function GetAsString: string; override;
167 +    function GetDataSize: Integer; override;
168 +    procedure Bind(Binding: Boolean); override;
169 +  public
170 +    constructor Create(AOwner: TComponent); override;
171 +    function CreateArray: IArray;
172 +    property ArrayID: TISC_QUAD read GetArrayID;
173 +    property ArrayIntf: IArray read GetArrayIntf write SetArrayIntf;
174 +    property ArrayDimensions: integer read FArrayDimensions write FArrayDimensions;
175 +    property ArrayBounds: TArrayBounds read FArrayBounds write FArrayBounds;
176 +  end;
177 +
178    { TIBStringField allows us to have strings longer than 8196 }
179  
180    TIBStringField = class(TStringField)
181 +  private
182 +    FCharacterSetName: RawByteString;
183 +    FCharacterSetSize: integer;
184 +    FAutoFieldSize: boolean;
185 +    FCodePage: TSystemCodePage;
186 +    FDataSize: integer;
187 +  protected
188 +    procedure Bind(Binding: Boolean); override;
189 +    function GetDataSize: Integer; override;
190    public
191 <    constructor create(AOwner: TComponent); override;
191 >    constructor Create(aOwner: TComponent); override;
192      class procedure CheckTypeSize(Value: Integer); override;
193      function GetAsString: string; override;
194      function GetAsVariant: Variant; override;
195      function GetValue(var Value: string): Boolean;
196      procedure SetAsString(const Value: string); override;
197 +    property CharacterSetName: RawByteString read FCharacterSetName write FCharacterSetName;
198 +    property CharacterSetSize: integer read FCharacterSetSize write FCharacterSetSize;
199 +    property CodePage: TSystemCodePage read FCodePage write FCodePage;
200 +  published
201 +    property AutoFieldSize: boolean read FAutoFieldSize write FAutoFieldSize default true;
202    end;
203  
204    { TIBBCDField }
# Line 135 | Line 209 | type
209       Note: y > 4 will default to Floats
210    }
211    TIBBCDField = class(TBCDField)
212 +  private
213 +    FIdentityColumn: boolean;
214    protected
215 +    procedure Bind(Binding: Boolean); override;
216      class procedure CheckTypeSize(Value: Integer); override;
217      function GetAsCurrency: Currency; override;
218      function GetAsString: string; override;
# Line 143 | Line 220 | type
220      function GetDataSize: Integer; override;
221    public
222      constructor Create(AOwner: TComponent); override;
223 +    property IdentityColumn: boolean read FIdentityColumn;
224    published
225      property Size default 8;
226    end;
227  
228 +  {The following integer field types extend the built in versions to enable IBX appplications
229 +   to check for an Identity column}
230 +
231 +  { TIBSmallintField }
232 +
233 +  TIBSmallintField = class(TSmallintField)
234 +  private
235 +    FIdentityColumn: boolean;
236 +  protected
237 +    procedure Bind(Binding: Boolean); override;
238 +  public
239 +    property IdentityColumn: boolean read FIdentityColumn;
240 +  end;
241 +
242 +  { TIBIntegerField }
243 +
244 +  TIBIntegerField = class(TIntegerField)
245 +  private
246 +    FIdentityColumn: boolean;
247 +  protected
248 +    procedure Bind(Binding: Boolean); override;
249 +  public
250 +    property IdentityColumn: boolean read FIdentityColumn;
251 +  end;
252 +
253 +  { TIBLargeIntField }
254 +
255 +  TIBLargeIntField = class(TLargeIntField)
256 +  private
257 +    FIdentityColumn: boolean;
258 +  protected
259 +    procedure Bind(Binding: Boolean); override;
260 +  public
261 +    property IdentityColumn: boolean read FIdentityColumn;
262 +  end;
263 +
264 +  {TIBMemoField}
265 +  {Allows us to show truncated text in DBGrids and anything else that uses
266 +   DisplayText}
267 +
268 +   TIBMemoField = class(TMemoField)
269 +   private
270 +     FCharacterSetName: RawByteString;
271 +     FCharacterSetSize: integer;
272 +     FDisplayTextAsClassName: boolean;
273 +     function GetTruncatedText: string;
274 +   protected
275 +     procedure Bind(Binding: Boolean); override;
276 +     function GetAsString: string; override;
277 +     function GetDefaultWidth: Longint; override;
278 +     procedure GetText(var AText: string; ADisplayText: Boolean); override;
279 +     procedure SetAsString(const AValue: string); override;
280 +   public
281 +     constructor Create(AOwner: TComponent); override;
282 +     property CharacterSetName: RawByteString read FCharacterSetName write FCharacterSetName;
283 +     property CharacterSetSize: integer read FCharacterSetSize write FCharacterSetSize;
284 +   published
285 +     property DisplayTextAsClassName: boolean read FDisplayTextAsClassName
286 +                                            write FDisplayTextAsClassName;
287 +   private
288 +     FCodePage: TSystemCodePage;
289 +     FFCodePage: TSystemCodePage;
290 +   public
291 +     property CodePage: TSystemCodePage read FFCodePage write FFCodePage;
292 +   end;
293 +
294    TIBDataLink = class(TDetailDataLink)
295    private
296      FDataSet: TIBCustomDataSet;
# Line 171 | Line 315 | type
315      FFieldName: string;
316      FGeneratorName: string;
317      FIncrement: integer;
318 +    FQuery: TIBSQL;
319 +    function GetDatabase: TIBDatabase;
320 +    function GetTransaction: TIBTransaction;
321 +    procedure SetDatabase(AValue: TIBDatabase);
322 +    procedure SetGeneratorName(AValue: string);
323      procedure SetIncrement(const AValue: integer);
324 +    procedure SetTransaction(AValue: TIBTransaction);
325 +    procedure SetQuerySQL;
326    protected
327 <    function GetNextValue(ADatabase: TIBDatabase; ATransaction: TIBTransaction): integer;
327 >    function GetNextValue: integer;
328    public
329      constructor Create(Owner: TIBCustomDataSet);
330 +    destructor Destroy; override;
331      procedure Apply;
332      property Owner: TIBCustomDataSet read FOwner;
333 +    property Database: TIBDatabase read GetDatabase write SetDatabase;
334 +    property Transaction: TIBTransaction read GetTransaction write SetTransaction;
335    published
336 <    property Generator: string read FGeneratorName write FGeneratorName;
336 >    property Generator: string read FGeneratorName write SetGeneratorName;
337      property Field: string read FFieldName write FFieldName;
338      property Increment: integer read FIncrement write SetIncrement default 1;
339      property ApplyOnEvent: TIBGeneratorApplyOnEvent read FApplyOnEvent write FApplyOnEvent;
340    end;
341  
342 +  {TIBControlLink - Allows IB Aware controls to react to dataset state changes}
343 +
344 +  TIBControlLink = class
345 +  private
346 +    FTIBDataSet: TIBCustomDataSet;
347 +    procedure SetIBDataSet(AValue: TIBCustomDataSet);
348 +  protected
349 +    procedure UpdateSQL(Sender: TObject); virtual;
350 +    procedure UpdateParams(Sender: TObject); virtual;
351 +  public
352 +    destructor Destroy; override;
353 +    property IBDataSet: TIBCustomDataSet read FTIBDataSet write SetIBDataSet;
354 +  end;
355 +
356 +  TIBAutoCommit = (acDisabled, acCommitRetaining);
357 +
358    { TIBCustomDataSet }
359 +
360    TIBUpdateAction = (uaFail, uaAbort, uaSkip, uaRetry, uaApply, uaApplied);
361  
362    TIBUpdateErrorEvent = procedure(DataSet: TDataSet; E: EDatabaseError;
363 <                                 UpdateKind: TUpdateKind; var UpdateAction: TIBUpdateAction)
363 >                                 UpdateKind: TUpdateKind; var TheUpdateAction: TIBUpdateAction)
364                                   of object;
365    TIBUpdateRecordEvent = procedure(DataSet: TDataSet; UpdateKind: TUpdateKind;
366                                     var UpdateAction: TIBUpdateAction) of object;
367  
368    TIBUpdateRecordTypes = set of TCachedUpdateStatus;
369  
370 +  TDataSetCloseAction = (dcDiscardChanges, dcSaveChanges);
371 +
372 +  TOnValidatePost = procedure (Sender: TObject; var CancelPost: boolean) of object;
373 +
374 +  TOnDeleteReturning = procedure (Sender: TObject; QryResults: IResults) of object;
375 +
376    TIBCustomDataSet = class(TDataset)
377    private
378 +    FAllowAutoActivateTransaction: Boolean;
379 +    FArrayFieldCount: integer;
380 +    FArrayCacheOffset: integer;
381 +    FAutoCommit: TIBAutoCommit;
382 +    FGenerateParamNames: Boolean;
383      FGeneratorField: TIBGenerator;
384      FNeedsRefresh: Boolean;
385      FForcedRefresh: Boolean;
386      FDidActivate: Boolean;
205    FIBLoaded: Boolean;
387      FBase: TIBBase;
388      FBlobCacheOffset: Integer;
389      FBlobStreamList: TList;
390 +    FArrayList: TList;
391      FBufferChunks: Integer;
392      FBufferCache,
393      FOldBufferCache: PChar;
# Line 223 | Line 405 | type
405      FDeletedRecords: Long;
406      FModelBuffer,
407      FOldBuffer: PChar;
408 +    FOnDeleteReturning: TOnDeleteReturning;
409 +    FOnValidatePost: TOnValidatePost;
410      FOpen: Boolean;
411      FInternalPrepared: Boolean;
412      FQDelete,
# Line 230 | Line 414 | type
414      FQRefresh,
415      FQSelect,
416      FQModify: TIBSQL;
417 +    FDatabaseInfo: TIBDatabaseInfo;
418      FRecordBufferSize: Integer;
419      FRecordCount: Integer;
420      FRecordSize: Integer;
421 +    FDataSetCloseAction: TDataSetCloseAction;
422      FUniDirectional: Boolean;
423      FUpdateMode: TUpdateMode;
424      FUpdateObject: TIBDataSetUpdateObject;
# Line 250 | Line 436 | type
436      FBeforeTransactionEnd,
437      FAfterTransactionEnd,
438      FTransactionFree: TNotifyEvent;
439 <
440 <    function GetSelectStmtHandle: TISC_STMT_HANDLE;
439 >    FAliasNameMap: array of string;
440 >    FAliasNameList: array of string;
441 >    FBaseSQLSelect: TStrings;
442 >    FParser: TSelectSQLParser;
443 >    FCloseAction: TTransactionAction;
444 >    FInTransactionEnd: boolean;
445 >    FIBLinks: TList;
446 >    FFieldColumns: PFieldColumns;
447 >    FBufferUpdatedOnQryReturn: boolean;
448 >    procedure ColumnDataToBuffer(QryResults: IResults; ColumnIndex,
449 >      FieldIndex: integer; Buffer: PChar);
450 >    procedure InitModelBuffer(Qry: TIBSQL; Buffer: PChar);
451 >    function GetSelectStmtIntf: IStatement;
452      procedure SetUpdateMode(const Value: TUpdateMode);
453      procedure SetUpdateObject(Value: TIBDataSetUpdateObject);
454  
# Line 263 | Line 460 | type
460      function CanRefresh: Boolean;
461      procedure CheckEditState;
462      procedure ClearBlobCache;
463 +    procedure ClearArrayCache;
464 +    procedure ClearIBLinks;
465      procedure CopyRecordBuffer(Source, Dest: Pointer);
466      procedure DoBeforeDatabaseDisconnect(Sender: TObject);
467      procedure DoAfterDatabaseDisconnect(Sender: TObject);
468      procedure DoDatabaseFree(Sender: TObject);
469 <    procedure DoBeforeTransactionEnd(Sender: TObject);
469 >    procedure DoBeforeTransactionEnd(Sender: TObject; Action: TTransactionAction);
470      procedure DoAfterTransactionEnd(Sender: TObject);
471      procedure DoTransactionFree(Sender: TObject);
472 +    procedure DoDeleteReturning(QryResults: IResults);
473      procedure FetchCurrentRecordToBuffer(Qry: TIBSQL; RecordNumber: Integer;
474                                           Buffer: PChar);
475      function GetDatabase: TIBDatabase;
276    function GetDBHandle: PISC_DB_HANDLE;
476      function GetDeleteSQL: TStrings;
477      function GetInsertSQL: TStrings;
478 <    function GetSQLParams: TIBXSQLDA;
478 >    function GetSQLParams: ISQLParams;
479      function GetRefreshSQL: TStrings;
480      function GetSelectSQL: TStrings;
481 <    function GetStatementType: TIBSQLTypes;
481 >    function GetStatementType: TIBSQLStatementTypes;
482      function GetModifySQL: TStrings;
483      function GetTransaction: TIBTransaction;
484 <    function GetTRHandle: PISC_TR_HANDLE;
484 >    function GetParser: TSelectSQLParser;
485      procedure InternalDeleteRecord(Qry: TIBSQL; Buff: Pointer); virtual;
486      function InternalLocate(const KeyFields: string; const KeyValues: Variant;
487                              Options: TLocateOptions): Boolean; virtual;
488      procedure InternalPostRecord(Qry: TIBSQL; Buff: Pointer); virtual;
489      procedure InternalRevertRecord(RecordNumber: Integer); virtual;
490      function IsVisible(Buffer: PChar): Boolean;
491 +    procedure RegisterIBLink(Sender: TIBControlLink);
492 +    procedure UnRegisterIBLink(Sender: TIBControlLink);
493      procedure SaveOldBuffer(Buffer: PChar);
494      procedure SetBufferChunks(Value: Integer);
495      procedure SetDatabase(Value: TIBDatabase);
496      procedure SetDeleteSQL(Value: TStrings);
497      procedure SetInsertSQL(Value: TStrings);
498 <    procedure SetInternalSQLParams(Qry: TIBSQL; Buffer: Pointer);
498 >    procedure SetInternalSQLParams(Params: ISQLParams; Buffer: Pointer);
499      procedure SetRefreshSQL(Value: TStrings);
500      procedure SetSelectSQL(Value: TStrings);
501      procedure SetModifySQL(Value: TStrings);
502      procedure SetTransaction(Value: TIBTransaction);
503      procedure SetUpdateRecordTypes(Value: TIBUpdateRecordTypes);
504      procedure SetUniDirectional(Value: Boolean);
505 +    procedure UpdateRecordFromQuery(QryResults: IResults; Buffer: PChar);
506      procedure RefreshParams;
305    procedure SQLChanging(Sender: TObject); virtual;
507      function AdjustPosition(FCache: PChar; Offset: DWORD;
508                              Origin: Integer): DWORD;
509      procedure ReadCache(FCache: PChar; Offset: DWORD; Origin: Integer;
# Line 321 | Line 522 | type
522      procedure DeactivateTransaction;
523      procedure CheckDatasetClosed;
524      procedure CheckDatasetOpen;
525 +    function CreateParser: TSelectSQLParser; virtual;
526 +    procedure FieldDefsFromQuery(SourceQuery: TIBSQL);
527      function GetActiveBuf: PChar;
528      procedure InternalBatchInput(InputObject: TIBBatchInput); virtual;
529      procedure InternalBatchOutput(OutputObject: TIBBatchOutput); virtual;
# Line 330 | Line 533 | type
533      procedure InternalRefreshRow; virtual;
534      procedure InternalSetParamsFromCursor; virtual;
535      procedure CheckNotUniDirectional;
536 +    procedure SQLChanging(Sender: TObject); virtual;
537 +    procedure SQLChanged(Sender: TObject); virtual;
538  
539 < (*    { IProviderSupport }
539 >    { IProviderSupport }
540      procedure PSEndTransaction(Commit: Boolean); override;
541      function PSExecuteStatement(const ASQL: string; AParams: TParams;
542        ResultSet: Pointer = nil): Integer; override;
# Line 344 | Line 549 | type
549      procedure PSStartTransaction; override;
550      procedure PSReset; override;
551      function PSUpdateRecord(UpdateKind: TUpdateKind; Delta: TDataSet): Boolean; override;
552 < *)
552 >
553      { TDataSet support }
554      procedure InternalInsert; override;
555      procedure InitRecord(Buffer: PChar); override;
# Line 353 | Line 558 | type
558      procedure ClearCalcFields(Buffer: PChar); override;
559      function AllocRecordBuffer: PChar; override;
560      procedure DoBeforeDelete; override;
561 +    procedure DoAfterDelete; override;
562      procedure DoBeforeEdit; override;
563 +    procedure DoAfterEdit; override;
564      procedure DoBeforeInsert; override;
565      procedure DoAfterInsert; override;
566 +    procedure DoBeforeClose; override;
567 +    procedure DoBeforeOpen; override;
568      procedure DoBeforePost; override;
569 +    procedure DoAfterPost; override;
570      procedure FreeRecordBuffer(var Buffer: PChar); override;
571      procedure GetBookmarkData(Buffer: PChar; Data: Pointer); override;
572      function GetBookmarkFlag(Buffer: PChar): TBookmarkFlag; override;
573      function GetCanModify: Boolean; override;
574      function GetDataSource: TDataSource; override;
575 +    function GetDBAliasName(FieldNo: integer): string;
576 +    function GetFieldDefFromAlias(aliasName: string): TFieldDef;
577      function GetFieldClass(FieldType: TFieldType): TFieldClass; override;
578      function GetRecNo: Integer; override;
579      function GetRecord(Buffer: PChar; GetMode: TGetMode;
580                         DoCheck: Boolean): TGetResult; override;
581      function GetRecordCount: Integer; override;
582      function GetRecordSize: Word; override;
583 +    procedure InternalAutoCommit;
584      procedure InternalAddRecord(Buffer: Pointer; Append: Boolean); override;
585      procedure InternalCancel; override;
586      procedure InternalClose; override;
# Line 385 | Line 598 | type
598      procedure InternalSetFieldData(Field: TField; Buffer: Pointer); virtual;
599      procedure InternalSetToRecord(Buffer: PChar); override;
600      function IsCursorOpen: Boolean; override;
601 +    procedure Loaded; override;
602      procedure ReQuery;
603      procedure SetBookmarkFlag(Buffer: PChar; Value: TBookmarkFlag); override;
604      procedure SetBookmarkData(Buffer: PChar; Data: Pointer); override;
605      procedure SetCachedUpdates(Value: Boolean);
606      procedure SetDataSource(Value: TDataSource);
607 +    procedure SetGenerateParamNames(AValue: Boolean); virtual;
608      procedure SetFieldData(Field : TField; Buffer : Pointer); override;
609      procedure SetFieldData(Field : TField; Buffer : Pointer;
610        NativeFormat : Boolean); overload; override;
# Line 397 | Line 612 | type
612  
613    protected
614      {Likely to be made public by descendant classes}
615 <    property SQLParams: TIBXSQLDA read GetSQLParams;
616 <    property Params: TIBXSQLDA read GetSQLParams;
615 >    property AutoCommit: TIBAutoCommit read FAutoCommit write FAutoCommit default acDisabled;
616 >    property SQLParams: ISQLParams read GetSQLParams;
617 >    property Params: ISQLParams read GetSQLParams;
618      property InternalPrepared: Boolean read FInternalPrepared;
619      property QDelete: TIBSQL read FQDelete;
620      property QInsert: TIBSQL read FQInsert;
621      property QRefresh: TIBSQL read FQRefresh;
622      property QSelect: TIBSQL read FQSelect;
623      property QModify: TIBSQL read FQModify;
624 <    property StatementType: TIBSQLTypes read GetStatementType;
625 <    property SelectStmtHandle: TISC_STMT_HANDLE read GetSelectStmtHandle;
624 >    property StatementType: TIBSQLStatementTypes read GetStatementType;
625 >    property SelectStmtHandle: IStatement read GetSelectStmtIntf;
626  
627      {Likely to be made published by descendant classes}
628      property BufferChunks: Integer read FBufferChunks write SetBufferChunks;
# Line 420 | Line 636 | type
636      property ModifySQL: TStrings read GetModifySQL write SetModifySQL;
637      property UpdateMode: TUpdateMode read FUpdateMode write SetUpdateMode default upWhereAll;
638      property ParamCheck: Boolean read FParamCheck write FParamCheck default True;
639 +    property Parser: TSelectSQLParser read GetParser;
640 +    property BaseSQLSelect: TStrings read FBaseSQLSelect;
641  
642      property BeforeDatabaseDisconnect: TNotifyEvent read FBeforeDatabaseDisconnect
643                                                   write FBeforeDatabaseDisconnect;
# Line 433 | Line 651 | type
651                                              write FAfterTransactionEnd;
652      property TransactionFree: TNotifyEvent read FTransactionFree
653                                             write FTransactionFree;
654 +    property OnValidatePost: TOnValidatePost read FOnValidatePost write FOnValidatePost;
655  
656    public
657      constructor Create(AOwner: TComponent); override;
# Line 440 | Line 659 | type
659      procedure ApplyUpdates;
660      function CachedUpdateStatus: TCachedUpdateStatus;
661      procedure CancelUpdates;
662 +    function GetFieldPosition(AliasName: string): integer;
663      procedure FetchAll;
664      function LocateNext(const KeyFields: string; const KeyValues: Variant;
665                          Options: TLocateOptions): Boolean;
666      procedure RecordModified(Value: Boolean);
667      procedure RevertRecord;
668      procedure Undelete;
669 +    procedure ResetParser; virtual;
670 +    function HasParser: boolean;
671  
672      { TDataSet support methods }
673      function BookmarkValid(Bookmark: TBookmark): Boolean; override;
674      function CompareBookmarks(Bookmark1, Bookmark2: TBookmark): Integer; override;
675      function CreateBlobStream(Field: TField; Mode: TBlobStreamMode): TStream; override;
676 +    function GetArray(Field: TIBArrayField): IArray;
677 +    procedure SetArrayIntf(AnArray: IArray; Field: TIBArrayField);
678      function GetCurrentRecord(Buffer: PChar): Boolean; override;
679      function GetFieldData(Field : TField; Buffer : Pointer) : Boolean; overload; override;
680      function GetFieldData(FieldNo: Integer; Buffer: Pointer): Boolean; overload; (*override;*)
681      function GetFieldData(Field : TField; Buffer : Pointer;
682        NativeFormat : Boolean) : Boolean; overload; override;
683 +    property GenerateParamNames: Boolean read FGenerateParamNames write SetGenerateParamNames;
684      function Locate(const KeyFields: string; const KeyValues: Variant;
685                      Options: TLocateOptions): Boolean; override;
686      function Lookup(const KeyFields: string; const KeyValues: Variant;
687                      const ResultFields: string): Variant; override;
688      function UpdateStatus: TUpdateStatus; override;
689      function IsSequenced: Boolean; override;
690 <    function ParamByName(ParamName: String): TIBXSQLVAR;
691 <    property DBHandle: PISC_DB_HANDLE read GetDBHandle;
692 <    property TRHandle: PISC_TR_HANDLE read GetTRHandle;
690 >    procedure Post; override;
691 >    function ParamByName(ParamName: String): ISQLParam;
692 >    property ArrayFieldCount: integer read FArrayFieldCount;
693 >    property DatabaseInfo: TIBDatabaseInfo read FDatabaseInfo;
694      property UpdateObject: TIBDataSetUpdateObject read FUpdateObject write SetUpdateObject;
695      property UpdatesPending: Boolean read FUpdatesPending;
696      property UpdateRecordTypes: TIBUpdateRecordTypes read FUpdateRecordTypes
697                                                        write SetUpdateRecordTypes;
698 +    property DataSetCloseAction: TDataSetCloseAction
699 +               read FDataSetCloseAction write FDataSetCloseAction;
700  
701    published
702 +    property AllowAutoActivateTransaction: Boolean read FAllowAutoActivateTransaction
703 +                 write FAllowAutoActivateTransaction;
704      property Database: TIBDatabase read GetDatabase write SetDatabase;
705      property Transaction: TIBTransaction read GetTransaction
706                                            write SetTransaction;
# Line 505 | Line 735 | type
735                                                   write FOnUpdateError;
736      property OnUpdateRecord: TIBUpdateRecordEvent read FOnUpdateRecord
737                                                     write FOnUpdateRecord;
738 +    property OnDeleteReturning: TOnDeleteReturning read FOnDeleteReturning
739 +                                                   write FOnDeleteReturning;
740    end;
741  
742 <  TIBDataSet = class(TIBCustomDataSet)
742 >  TIBParserDataSet = class(TIBCustomDataSet)
743 >  public
744 >    property Parser;
745 >  end;
746 >
747 >  TIBDataSet = class(TIBParserDataSet)
748    private
749      function GetPrepared: Boolean;
750  
# Line 532 | Line 769 | type
769      property QModify;
770      property StatementType;
771      property SelectStmtHandle;
772 +    property BaseSQLSelect;
773  
774    published
775      { TIBCustomDataSet }
776 +    property AutoCommit;
777      property BufferChunks;
778      property CachedUpdates;
779      property DeleteSQL;
# Line 543 | Line 782 | type
782      property SelectSQL;
783      property ModifySQL;
784      property GeneratorField;
785 +    property GenerateParamNames;
786      property ParamCheck;
787      property UniDirectional;
788      property Filtered;
789 +    property DataSetCloseAction;
790  
791      property BeforeDatabaseDisconnect;
792      property AfterDatabaseDisconnect;
# Line 581 | Line 822 | type
822      property OnFilterRecord;
823      property OnNewRecord;
824      property OnPostError;
825 +    property OnValidatePost;
826 +    property OnDeleteReturning;
827    end;
828  
829    { TIBDSBlobStream }
830    TIBDSBlobStream = class(TStream)
831 +  private
832 +    FHasWritten: boolean;
833    protected
834      FField: TField;
835      FBlobStream: TIBBlobStream;
836 +    function  GetSize: Int64; override;
837    public
838      constructor Create(AField: TField; ABlobStream: TIBBlobStream;
839                         Mode: TBlobStreamMode);
840 +    destructor Destroy; override;
841      function Read(var Buffer; Count: Longint): Longint; override;
842      function Seek(Offset: Longint; Origin: Word): Longint; override;
843      procedure SetSize(NewSize: Longint); override;
844      function Write(const Buffer; Count: Longint): Longint; override;
845    end;
846  
847 +  {Extended Field Def for character set info}
848 +
849 +  { TIBFieldDef }
850 +
851 +  TIBFieldDef = class(TFieldDef)
852 +  private
853 +    FArrayBounds: TArrayBounds;
854 +    FArrayDimensions: integer;
855 +    FCharacterSetName: RawByteString;
856 +    FCharacterSetSize: integer;
857 +    FCodePage: TSystemCodePage;
858 +    FIdentityColumn: boolean;
859 +    FRelationName: string;
860 +    FDataSize: integer;
861 +  published
862 +    property CharacterSetName: RawByteString read FCharacterSetName write FCharacterSetName;
863 +    property CharacterSetSize: integer read FCharacterSetSize write FCharacterSetSize;
864 +    property CodePage: TSystemCodePage read FCodePage write FCodePage;
865 +    property DataSize: integer read FDataSize write FDataSize;
866 +    property RelationName: string read FRelationName write FRelationName;
867 +    property ArrayDimensions: integer read FArrayDimensions write FArrayDimensions;
868 +    property ArrayBounds: TArrayBounds read FArrayBounds write FArrayBounds;
869 +    property IdentityColumn: boolean read FIdentityColumn write FIdentityColumn default false;
870 +  end;
871 +
872   const
873   DefaultFieldClasses: array[TFieldType] of TFieldClass = (
874      nil,                { ftUnknown }
875      TIBStringField,     { ftString }
876 <    TSmallintField,     { ftSmallint }
877 <    TIntegerField,      { ftInteger }
876 >    TIBSmallintField,   { ftSmallint }
877 >    TIBIntegerField,      { ftInteger }
878      TWordField,         { ftWord }
879      TBooleanField,      { ftBoolean }
880      TFloatField,        { ftFloat }
# Line 615 | Line 887 | DefaultFieldClasses: array[TFieldType] o
887      TVarBytesField,     { ftVarBytes }
888      TAutoIncField,      { ftAutoInc }
889      TBlobField,         { ftBlob }
890 <    TMemoField,         { ftMemo }
890 >    TIBMemoField,       { ftMemo }
891      TGraphicField,      { ftGraphic }
892      TBlobField,         { ftFmtMemo }
893      TBlobField,         { ftParadoxOle }
# Line 623 | Line 895 | DefaultFieldClasses: array[TFieldType] o
895      TBlobField,         { ftTypedBinary }
896      nil,                { ftCursor }
897      TStringField,       { ftFixedChar }
898 <    TWideStringField,    { ftWideString }
899 <    TLargeIntField,     { ftLargeInt }
898 >    nil,    { ftWideString }
899 >    TIBLargeIntField,     { ftLargeInt }
900      nil,          { ftADT }
901 <    nil,        { ftArray }
901 >    TIBArrayField,        { ftArray }
902      nil,    { ftReference }
903      nil,     { ftDataSet }
904      TBlobField,         { ftOraBlob }
# Line 638 | Line 910 | DefaultFieldClasses: array[TFieldType] o
910      TDateTimeField,    {ftTimestamp}
911      TIBBCDField,       {ftFMTBcd}
912      nil,  {ftFixedWideChar}
913 <    TWideMemoField);   {ftWideMemo}
913 >    nil);   {ftWideMemo}
914   (*
915      TADTField,          { ftADT }
916      TArrayField,        { ftArray }
# Line 655 | Line 927 | DefaultFieldClasses: array[TFieldType] o
927  
928   implementation
929  
930 < uses IBIntf, Variants, FmtBCD;
930 > uses Variants, FmtBCD, LazUTF8, FBMessages, IBQuery;
931  
932   const FILE_BEGIN = 0;
933        FILE_CURRENT = 1;
# Line 668 | Line 940 | type
940      FieldName : String;
941      COMPUTED_BLR : Boolean;
942      DEFAULT_VALUE : boolean;
943 +    IDENTITY_COLUMN : boolean;
944      NextField : TFieldNode;
945    end;
946  
# Line 679 | Line 952 | type
952    end;
953  
954  
955 < { TIBStringField}
955 >  {  Copied from LCLProc in order to avoid LCL dependency
956 >
957 >    Ensures the covenient look of multiline string
958 >    when displaying it in the single line
959 >    * Replaces CR and LF with spaces
960 >    * Removes duplicate spaces
961 >  }
962 >  function TextToSingleLine(const AText: string): string;
963 >  var
964 >    str: string;
965 >    i, wstart, wlen: Integer;
966 >  begin
967 >    str := Trim(AText);
968 >    wstart := 0;
969 >    wlen := 0;
970 >    i := 1;
971 >    while i < Length(str) - 1 do
972 >    begin
973 >      if (str[i] in [' ', #13, #10]) then
974 >      begin
975 >        if (wstart = 0) then
976 >        begin
977 >          wstart := i;
978 >          wlen := 1;
979 >        end else
980 >          Inc(wlen);
981 >      end else
982 >      begin
983 >        if wstart > 0 then
984 >        begin
985 >          str[wstart] := ' ';
986 >          Delete(str, wstart+1, wlen-1);
987 >          Dec(i, wlen-1);
988 >          wstart := 0;
989 >        end;
990 >      end;
991 >      Inc(i);
992 >    end;
993 >    Result := str;
994 >  end;
995 >
996 > { TIBLargeIntField }
997 >
998 > procedure TIBLargeIntField.Bind(Binding: Boolean);
999 > begin
1000 >  inherited Bind(Binding);
1001 >  if Binding and (FieldDef <> nil) then
1002 >     FIdentityColumn := (FieldDef as TIBFieldDef).IdentityColumn;
1003 > end;
1004 >
1005 > { TIBIntegerField }
1006 >
1007 > procedure TIBIntegerField.Bind(Binding: Boolean);
1008 > begin
1009 >  inherited Bind(Binding);
1010 >  if Binding and (FieldDef <> nil) then
1011 >     FIdentityColumn := (FieldDef as TIBFieldDef).IdentityColumn;
1012 > end;
1013 >
1014 > { TIBSmallintField }
1015 >
1016 > procedure TIBSmallintField.Bind(Binding: Boolean);
1017 > begin
1018 >  inherited Bind(Binding);
1019 >  if Binding and (FieldDef <> nil) then
1020 >     FIdentityColumn := (FieldDef as TIBFieldDef).IdentityColumn;
1021 > end;
1022 >
1023 > { TIBArray }
1024 >
1025 > procedure TIBArray.EventHandler(Sender: IArray; Reason: TArrayEventReason);
1026 > begin
1027 >  case Reason of
1028 >  arChanging:
1029 >    if FRecNo <> FField.Dataset.RecNo then
1030 >      IBError(ibxeNotCurrentArray,[nil]);
1031 >
1032 >  arChanged:
1033 >    FField.DataChanged;
1034 >  end;
1035 > end;
1036 >
1037 > constructor TIBArray.Create(aField: TIBArrayField; anArray: IArray);
1038 > begin
1039 >  inherited Create;
1040 >  FField := aField;
1041 >  FArray := anArray;
1042 >  FRecNo := FField.Dataset.RecNo;
1043 >  FArray.AddEventHandler(EventHandler);
1044 > end;
1045 >
1046 > destructor TIBArray.Destroy;
1047 > begin
1048 >  FArray.RemoveEventHandler(EventHandler);
1049 >  inherited Destroy;
1050 > end;
1051 >
1052 > { TIBArrayField }
1053 >
1054 > function TIBArrayField.GetArrayIntf: IArray;
1055 > begin
1056 >  Result := TIBCustomDataSet(DataSet).GetArray(self);
1057 > end;
1058 >
1059 > function TIBArrayField.GetArrayID: TISC_QUAD;
1060 > begin
1061 >  GetData(@Result);
1062 > end;
1063 >
1064 > procedure TIBArrayField.SetArrayIntf(AValue: IArray);
1065 > begin
1066 >  TIBCustomDataSet(DataSet).SetArrayIntf(AValue,self);
1067 >  DataChanged;
1068 > end;
1069 >
1070 > class procedure TIBArrayField.CheckTypeSize(AValue: Longint);
1071 > begin
1072 >  //Ignore
1073 > end;
1074 >
1075 > function TIBArrayField.GetAsString: string;
1076 > begin
1077 >  Result := '(Array)';
1078 > end;
1079 >
1080 > function TIBArrayField.GetDataSize: Integer;
1081 > begin
1082 >  Result := sizeof(TISC_QUAD);
1083 > end;
1084 >
1085 > procedure TIBArrayField.Bind(Binding: Boolean);
1086 > begin
1087 >  inherited Bind(Binding);
1088 >  if Binding then
1089 >  begin
1090 >    FCacheOffset := TIBCustomDataSet(DataSet).ArrayFieldCount;
1091 >    Inc(TIBCustomDataSet(DataSet).FArrayFieldCount);
1092 >    if FieldDef <> nil then
1093 >    begin
1094 >      FRelationName := TIBFieldDef(FieldDef).FRelationName;
1095 >      FArrayDimensions := TIBFieldDef(FieldDef).ArrayDimensions;
1096 >      FArrayBounds :=  TIBFieldDef(FieldDef).ArrayBounds;
1097 >    end;
1098 >  end;
1099 > end;
1100 >
1101 > constructor TIBArrayField.Create(AOwner: TComponent);
1102 > begin
1103 >  inherited Create(AOwner);
1104 >  SetDataType(ftArray);
1105 > end;
1106 >
1107 > function TIBArrayField.CreateArray: IArray;
1108 > begin
1109 > with DataSet as TIBCustomDataSet do
1110 >  Result := Database.Attachment.CreateArray(Transaction.TransactionIntf,FRelationName,FieldName);
1111 > end;
1112 >
1113 > { TIBMemoField }
1114 >
1115 > function TIBMemoField.GetTruncatedText: string;
1116 > begin
1117 >   Result := GetAsString;
1118 >
1119 >   if Result <> '' then
1120 >   begin
1121 >       case CharacterSetSize of
1122 >       1:
1123 >         if DisplayWidth = 0 then
1124 >           Result := TextToSingleLine(Result)
1125 >         else
1126 >         if Length(Result) > DisplayWidth then {Show truncation with elipses}
1127 >           Result := TextToSingleLine(system.copy(Result,1,DisplayWidth-3)) + '...';
1128 >
1129 >       {2: case 2 ignored. This should be handled by TIBWideMemo}
1130 >
1131 >       3, {Assume UNICODE_FSS is really UTF8}
1132 >       4: {Include GB18030 - assuming UTF8 routines work for this codeset}
1133 >         if DisplayWidth = 0 then
1134 >           Result := ValidUTF8String(TextToSingleLine(Result))
1135 >         else
1136 >         if UTF8Length(Result) > DisplayWidth then {Show truncation with elipses}
1137 >           Result := ValidUTF8String(TextToSingleLine(UTF8Copy(Result,1,DisplayWidth-3))) + '...';
1138 >       end;
1139 >   end
1140 > end;
1141  
1142 < constructor TIBStringField.Create(AOwner: TComponent);
1142 > procedure TIBMemoField.Bind(Binding: Boolean);
1143 > var IBFieldDef: TIBFieldDef;
1144 > begin
1145 >  inherited Bind(Binding);
1146 >  if Binding and (FieldDef <> nil) then
1147 >  begin
1148 >    IBFieldDef := FieldDef as TIBFieldDef;
1149 >    CharacterSetSize := IBFieldDef.CharacterSetSize;
1150 >    CharacterSetName := IBFieldDef.CharacterSetName;
1151 >    CodePage := IBFieldDef.CodePage;
1152 >  end;
1153 > end;
1154 >
1155 > function TIBMemoField.GetAsString: string;
1156 > var s: RawByteString;
1157 > begin
1158 >  s := inherited GetAsString;
1159 >  SetCodePage(s,CodePage,false);
1160 >  if (CodePage <> CP_NONE) and (CodePage <> CP_UTF8) then
1161 >    SetCodePage(s,CP_UTF8,true);  {LCL only accepts UTF8}
1162 >  Result := s;
1163 > end;
1164 >
1165 > function TIBMemoField.GetDefaultWidth: Longint;
1166 > begin
1167 >  if DisplayTextAsClassName then
1168 >    Result := inherited
1169 >  else
1170 >    Result := 128;
1171 > end;
1172 >
1173 > procedure TIBMemoField.GetText(var AText: string; ADisplayText: Boolean);
1174 > begin
1175 >  if ADisplayText then
1176 >  begin
1177 >    if not DisplayTextAsClassName and (CharacterSetName <> '') then
1178 >      AText := GetTruncatedText
1179 >    else
1180 >      inherited GetText(AText, ADisplayText);
1181 >  end
1182 >  else
1183 >    AText := GetAsString;
1184 > end;
1185 >
1186 > procedure TIBMemoField.SetAsString(const AValue: string);
1187 > var s: RawByteString;
1188 > begin
1189 >  s := AValue;
1190 >  if StringCodePage(s) <> CodePage then
1191 >    SetCodePage(s,CodePage,CodePage<>CP_NONE);
1192 >  inherited SetAsString(s);
1193 > end;
1194 >
1195 > constructor TIBMemoField.Create(AOwner: TComponent);
1196   begin
1197    inherited Create(AOwner);
1198 +  BlobType := ftMemo;
1199 +  FCodePage := CP_NONE;
1200 + end;
1201 +
1202 + { TIBControlLink }
1203 +
1204 + destructor TIBControlLink.Destroy;
1205 + begin
1206 +  IBDataSet := nil;
1207 +  inherited Destroy;
1208 + end;
1209 +
1210 + procedure TIBControlLink.UpdateParams(Sender: TObject);
1211 + begin
1212 +
1213 + end;
1214 +
1215 + procedure TIBControlLink.UpdateSQL(Sender: TObject);
1216 + begin
1217 +
1218 + end;
1219 +
1220 + procedure TIBControlLink.SetIBDataSet(AValue: TIBCustomDataSet);
1221 + begin
1222 +  if FTIBDataSet = AValue then Exit;
1223 +  if IBDataSet <> nil then
1224 +    IBDataSet.UnRegisterIBLink(self);
1225 +  FTIBDataSet := AValue;
1226 +  if IBDataSet <> nil then
1227 +    IBDataSet.RegisterIBLink(self);
1228 + end;
1229 +
1230 +
1231 + { TIBStringField}
1232 +
1233 + procedure TIBStringField.Bind(Binding: Boolean);
1234 + var IBFieldDef: TIBFieldDef;
1235 + begin
1236 +  inherited Bind(Binding);
1237 +  if Binding and (FieldDef <> nil) then
1238 +  begin
1239 +    IBFieldDef := FieldDef as TIBFieldDef;
1240 +    CharacterSetSize := IBFieldDef.CharacterSetSize;
1241 +    CharacterSetName := IBFieldDef.CharacterSetName;
1242 +    FDataSize := IBFieldDef.DataSize + 1;
1243 +    if AutoFieldSize then
1244 +      Size := IBFieldDef.Size;
1245 +    CodePage := IBFieldDef.CodePage;
1246 +  end;
1247 + end;
1248 +
1249 + function TIBStringField.GetDataSize: Integer;
1250 + begin
1251 +  Result := FDataSize;
1252 + end;
1253 +
1254 + constructor TIBStringField.Create(aOwner: TComponent);
1255 + begin
1256 +  inherited Create(aOwner);
1257 +  FCharacterSetSize := 1;
1258 +  FCodePage := CP_NONE;
1259 +  FAutoFieldSize := true;
1260   end;
1261  
1262   class procedure TIBStringField.CheckTypeSize(Value: Integer);
# Line 706 | Line 1279 | end;
1279   function TIBStringField.GetValue(var Value: string): Boolean;
1280   var
1281    Buffer: PChar;
1282 +  s: RawByteString;
1283   begin
1284    Buffer := nil;
1285 <  IBAlloc(Buffer, 0, Size + 1);
1285 >  IBAlloc(Buffer, 0, DataSize);
1286    try
1287      Result := GetData(Buffer);
1288      if Result then
1289      begin
1290 <      Value := string(Buffer);
1290 >      s := strpas(Buffer);
1291 >      SetCodePage(s,CodePage,false);
1292 >      if (CodePage <> CP_NONE) and (CodePage <> CP_UTF8) then
1293 >        SetCodePage(s,CP_UTF8,true);  {LCL only accepts UTF8}
1294 >      Value := s;
1295 > //      writeln(FieldName,': ', StringCodePage(Value),', ',Value);
1296        if Transliterate and (Value <> '') then
1297          DataSet.Translate(PChar(Value), PChar(Value), False);
1298      end
# Line 725 | Line 1304 | end;
1304   procedure TIBStringField.SetAsString(const Value: string);
1305   var
1306    Buffer: PChar;
1307 +  s: RawByteString;
1308   begin
1309    Buffer := nil;
1310 <  IBAlloc(Buffer, 0, Size + 1);
1310 >  IBAlloc(Buffer, 0, DataSize);
1311    try
1312 <    StrLCopy(Buffer, PChar(Value), Size);
1312 >    s := Value;
1313 >    if StringCodePage(s) <> CodePage then
1314 >      SetCodePage(s,CodePage,CodePage<>CP_NONE);
1315 >    StrLCopy(Buffer, PChar(s), DataSize-1);
1316      if Transliterate then
1317        DataSet.Translate(Buffer, Buffer, True);
1318      SetData(Buffer);
# Line 738 | Line 1321 | begin
1321    end;
1322   end;
1323  
1324 +
1325   { TIBBCDField }
1326  
1327   constructor TIBBCDField.Create(AOwner: TComponent);
# Line 747 | Line 1331 | begin
1331    Size := 8;
1332   end;
1333  
1334 + procedure TIBBCDField.Bind(Binding: Boolean);
1335 + begin
1336 +  inherited Bind(Binding);
1337 +  if Binding and (FieldDef <> nil) then
1338 +     FIdentityColumn := (FieldDef as TIBFieldDef).IdentityColumn;
1339 + end;
1340 +
1341   class procedure TIBBCDField.CheckTypeSize(Value: Integer);
1342   begin
1343   { No need to check as the base type is currency, not BCD }
# Line 831 | Line 1422 | end;
1422   constructor TIBCustomDataSet.Create(AOwner: TComponent);
1423   begin
1424    inherited Create(AOwner);
834  FIBLoaded := False;
835  CheckIBLoaded;
836  FIBLoaded := True;
1425    FBase := TIBBase.Create(Self);
1426 +  FDatabaseInfo := TIBDatabaseInfo.Create(self);
1427 +  FIBLinks := TList.Create;
1428    FCurrentRecord := -1;
1429    FDeletedRecords := 0;
1430    FUniDirectional := False;
1431    FBufferChunks := BufferCacheSize;
1432    FBlobStreamList := TList.Create;
1433 +  FArrayList := TList.Create;
1434    FGeneratorField := TIBGenerator.Create(self);
1435    FDataLink := TIBDataLink.Create(Self);
1436    FQDelete := TIBSQL.Create(Self);
# Line 853 | Line 1444 | begin
1444    FQRefresh.GoToFirstRecordOnExecute := False;
1445    FQSelect := TIBSQL.Create(Self);
1446    FQSelect.OnSQLChanging := SQLChanging;
1447 +  FQSelect.OnSQLChanged := SQLChanged;
1448    FQSelect.GoToFirstRecordOnExecute := False;
1449    FQModify := TIBSQL.Create(Self);
1450    FQModify.OnSQLChanging := SQLChanging;
1451    FQModify.GoToFirstRecordOnExecute := False;
1452    FUpdateRecordTypes := [cusUnmodified, cusModified, cusInserted];
1453    FParamCheck := True;
1454 +  FGenerateParamNames := False;
1455    FForcedRefresh := False;
1456 +  FAutoCommit:= acDisabled;
1457 +  FDataSetCloseAction := dcDiscardChanges;
1458    {Bookmark Size is Integer for IBX}
1459    BookmarkSize := SizeOf(Integer);
1460    FBase.BeforeDatabaseDisconnect := DoBeforeDatabaseDisconnect;
# Line 873 | Line 1468 | begin
1468    else
1469      if AOwner is TIBTransaction then
1470        Transaction := TIBTransaction(AOwner);
1471 +  FBaseSQLSelect := TStringList.Create;
1472   end;
1473  
1474   destructor TIBCustomDataSet.Destroy;
1475   begin
1476    if Active then Active := false;
1477 <  if FIBLoaded then
1478 <  begin
1479 <    if assigned(FGeneratorField) then FGeneratorField.Free;
1480 <    FDataLink.Free;
1481 <    FBase.Free;
1482 <    ClearBlobCache;
1483 <    FBlobStreamList.Free;
1484 <    FreeMem(FBufferCache);
1485 <    FBufferCache := nil;
1486 <    FreeMem(FOldBufferCache);
1487 <    FOldBufferCache := nil;
1488 <    FCacheSize := 0;
1489 <    FOldCacheSize := 0;
1490 <    FMappedFieldPosition := nil;
1491 <  end;
1477 >  if assigned(FGeneratorField) then FGeneratorField.Free;
1478 >  FDataLink.Free;
1479 >  FBase.Free;
1480 >  ClearBlobCache;
1481 >  ClearIBLinks;
1482 >  FIBLinks.Free;
1483 >  FBlobStreamList.Free;
1484 >  FArrayList.Free;
1485 >  FreeMem(FBufferCache);
1486 >  FBufferCache := nil;
1487 >  FreeMem(FOldBufferCache);
1488 >  FOldBufferCache := nil;
1489 >  FCacheSize := 0;
1490 >  FOldCacheSize := 0;
1491 >  FMappedFieldPosition := nil;
1492 >  if assigned(FBaseSQLSelect) then FBaseSQLSelect.Free;
1493 >  if assigned(FParser) then FParser.Free;
1494    inherited Destroy;
1495   end;
1496  
# Line 915 | Line 1513 | begin
1513        Inc(FCurrentRecord);
1514        if (FCurrentRecord = FRecordCount) then
1515        begin
1516 <        if (not FQSelect.EOF) and (FQSelect.Next <> nil) then
1516 >        if (not FQSelect.EOF) and FQSelect.Next  then
1517          begin
1518            FetchCurrentRecordToBuffer(FQSelect, FCurrentRecord, Buffer);
1519            Inc(FRecordCount);
# Line 934 | Line 1532 | end;
1532  
1533   procedure TIBCustomDataSet.ApplyUpdates;
1534   var
937  {$IF FPC_FULLVERSION > 20602 }
1535    CurBookmark: TBookmark;
939  {$ELSE}
940  CurBookmark: string;
941  {$ENDIF}
1536    Buffer: PRecordData;
1537    CurUpdateTypes: TIBUpdateRecordTypes;
1538    UpdateAction: TIBUpdateAction;
# Line 1136 | Line 1730 | begin
1730    end;
1731   end;
1732  
1733 + function TIBCustomDataSet.GetFieldPosition(AliasName: string): integer;
1734 + var i: integer;
1735 +    Prepared: boolean;
1736 + begin
1737 +  Result := 0;
1738 +  Prepared := FInternalPrepared;
1739 +  if not Prepared then
1740 +    InternalPrepare;
1741 +  try
1742 +    for i := 0 to Length(FAliasNameList) - 1 do
1743 +      if FAliasNameList[i] = AliasName then
1744 +      begin
1745 +        Result := i + 1;
1746 +        Exit
1747 +      end;
1748 +  finally
1749 +    if not Prepared then
1750 +      InternalUnPrepare;
1751 +  end;
1752 + end;
1753 +
1754   procedure TIBCustomDataSet.ActivateConnection;
1755   begin
1756    if not Assigned(Database) then
# Line 1148 | Line 1763 | end;
1763   function TIBCustomDataSet.ActivateTransaction: Boolean;
1764   begin
1765    Result := False;
1766 <  if not Assigned(Transaction) then
1152 <    IBError(ibxeTransactionNotAssigned, [nil]);
1153 <  if not Transaction.Active then
1766 >  if AllowAutoActivateTransaction or (csDesigning in ComponentState) then
1767    begin
1768 <    Result := True;
1769 <    Transaction.StartTransaction;
1770 <    FDidActivate := True;
1768 >    if not Assigned(Transaction) then
1769 >      IBError(ibxeTransactionNotAssigned, [nil]);
1770 >    if not Transaction.Active then
1771 >    begin
1772 >      Result := True;
1773 >      Transaction.StartTransaction;
1774 >      FDidActivate := True;
1775 >    end;
1776    end;
1777   end;
1778  
# Line 1196 | Line 1814 | begin
1814      IBError(ibxeDatasetClosed, [nil]);
1815   end;
1816  
1817 + function TIBCustomDataSet.CreateParser: TSelectSQLParser;
1818 + begin
1819 +  Result := TSelectSQLParser.Create(self,FBaseSQLSelect);
1820 +  Result.OnSQLChanging := SQLChanging
1821 + end;
1822 +
1823   procedure TIBCustomDataSet.CheckNotUniDirectional;
1824   begin
1825    if UniDirectional then
# Line 1273 | Line 1897 | begin
1897    FBlobStreamList.Pack;
1898   end;
1899  
1900 + procedure TIBCustomDataSet.ClearArrayCache;
1901 + var
1902 +  i: Integer;
1903 + begin
1904 +  for i := 0 to FArrayList.Count - 1 do
1905 +  begin
1906 +    TIBArray(FArrayList[i]).Free;
1907 +    FArrayList[i] := nil;
1908 +  end;
1909 +  FArrayList.Pack;
1910 + end;
1911 +
1912   procedure TIBCustomDataSet.CopyRecordBuffer(Source, Dest: Pointer);
1913   begin
1914    Move(Source^, Dest^, FRecordBufferSize);
# Line 1282 | Line 1918 | procedure TIBCustomDataSet.DoBeforeDatab
1918   begin
1919    if Active then
1920      Active := False;
1921 <  FInternalPrepared := False;
1921 >  InternalUnPrepare;
1922    if Assigned(FBeforeDatabaseDisconnect) then
1923      FBeforeDatabaseDisconnect(Sender);
1924   end;
# Line 1299 | Line 1935 | begin
1935      FDatabaseFree(Sender);
1936   end;
1937  
1938 < procedure TIBCustomDataSet.DoBeforeTransactionEnd(Sender: TObject);
1938 > procedure TIBCustomDataSet.DoBeforeTransactionEnd(Sender: TObject;
1939 >  Action: TTransactionAction);
1940   begin
1941 <  if Active then
1942 <    Active := False;
1941 >  FCloseAction := Action;
1942 >  FInTransactionEnd := true;
1943 >  try
1944 >    if Active then
1945 >      Active := False;
1946 >  finally
1947 >    FInTransactionEnd := false;
1948 >  end;
1949    if FQSelect <> nil then
1950      FQSelect.FreeHandle;
1951    if FQDelete <> nil then
# Line 1313 | Line 1956 | begin
1956      FQModify.FreeHandle;
1957    if FQRefresh <> nil then
1958      FQRefresh.FreeHandle;
1959 +  InternalUnPrepare;
1960    if Assigned(FBeforeTransactionEnd) then
1961      FBeforeTransactionEnd(Sender);
1962   end;
# Line 1329 | Line 1973 | begin
1973      FTransactionFree(Sender);
1974   end;
1975  
1976 < { Read the record from FQSelect.Current into the record buffer
1977 <  Then write the buffer to in memory cache }
1978 < procedure TIBCustomDataSet.FetchCurrentRecordToBuffer(Qry: TIBSQL;
1979 <  RecordNumber: Integer; Buffer: PChar);
1980 < var
1981 <  p: PRecordData;
1982 <  pbd: PBlobDataArray;
1983 <  i, j: Integer;
1984 <  LocalData: Pointer;
1985 <  LocalDate, LocalDouble: Double;
1986 <  LocalInt: Integer;
1343 <  LocalInt64: Int64;
1344 <  LocalCurrency: Currency;
1345 <  FieldsLoaded: Integer;
1346 <  temp: TIBXSQLVAR;
1976 > procedure TIBCustomDataSet.DoDeleteReturning(QryResults: IResults);
1977 > begin
1978 >  if assigned(FOnDeleteReturning) then
1979 >     OnDeleteReturning(self,QryResults);
1980 > end;
1981 >
1982 > procedure TIBCustomDataSet.InitModelBuffer(Qry: TIBSQL; Buffer: PChar);
1983 > var i, j: Integer;
1984 >    FieldsLoaded: integer;
1985 >    p: PRecordData;
1986 >    colMetadata: IColumnMetaData;
1987   begin
1988    p := PRecordData(Buffer);
1349  { Make sure blob cache is empty }
1350  pbd := PBlobDataArray(Buffer + FBlobCacheOffset);
1351  if RecordNumber > -1 then
1352    for i := 0 to BlobFieldCount - 1 do
1353      pbd^[i] := nil;
1989    { Get record information }
1990    p^.rdBookmarkFlag := bfCurrent;
1991 <  p^.rdFieldCount := Qry.Current.Count;
1992 <  p^.rdRecordNumber := RecordNumber;
1991 >  p^.rdFieldCount := Qry.FieldCount;
1992 >  p^.rdRecordNumber := -1;
1993    p^.rdUpdateStatus := usUnmodified;
1994    p^.rdCachedUpdateStatus := cusUnmodified;
1995    p^.rdSavedOffset := $FFFFFFFF;
1996  
1997    { Load up the fields }
1998 <  FieldsLoaded := FQSelect.Current.Count;
1998 >  FieldsLoaded := FQSelect.MetaData.Count;
1999    j := 1;
2000 <  for i := 0 to Qry.Current.Count - 1 do
2000 >  for i := 0 to Qry.MetaData.Count - 1 do
2001    begin
2002      if (Qry = FQSelect) then
2003        j := i + 1
2004 <    else begin
2004 >    else
2005 >    begin
2006        if FieldsLoaded = 0 then
2007          break;
2008 <      j := FQSelect.FieldIndex[Qry.Current[i].Name] + 1;
2008 >      j := FQSelect.FieldIndex[Qry[i].Name] + 1;
2009        if j < 1 then
2010          continue
2011        else
2012          Dec(FieldsLoaded);
2013      end;
2014 <    with FQSelect.Current[j - 1].Data^ do
2015 <      if aliasname = 'IBX_INTERNAL_DBKEY' then {do not localize}
2014 >    if j > 0 then
2015 >    begin
2016 >      colMetadata := Qry.MetaData[i];
2017 >      with p^.rdFields[j], FFieldColumns^[j] do
2018        begin
2019 <        if sqllen <= 8 then
2020 <          p^.rdDBKey := PIBDBKEY(Qry.Current[i].AsPointer)^;
2021 <        continue;
2019 >        fdDataType := colMetadata.GetSQLType;
2020 >        if fdDataType = SQL_BLOB then
2021 >          fdDataScale := 0
2022 >        else
2023 >          fdDataScale := colMetadata.getScale;
2024 >        fdNullable := colMetadata.getIsNullable;
2025 >        fdIsNull := true;
2026 >        fdDataSize := colMetadata.GetSize;
2027 >        fdDataLength := 0;
2028 >        fdCodePage := CP_NONE;
2029 >
2030 >        case fdDataType of
2031 >        SQL_TIMESTAMP,
2032 >        SQL_TYPE_DATE,
2033 >        SQL_TYPE_TIME:
2034 >          fdDataSize := SizeOf(TDateTime);
2035 >        SQL_SHORT, SQL_LONG:
2036 >        begin
2037 >          if (fdDataScale = 0) then
2038 >            fdDataSize := SizeOf(Integer)
2039 >          else
2040 >          if (fdDataScale >= (-4)) then
2041 >            fdDataSize := SizeOf(Currency)
2042 >          else
2043 >            fdDataSize := SizeOf(Double);
2044 >        end;
2045 >        SQL_INT64:
2046 >        begin
2047 >          if (fdDataScale = 0) then
2048 >            fdDataSize := SizeOf(Int64)
2049 >          else
2050 >          if (fdDataScale >= (-4)) then
2051 >            fdDataSize := SizeOf(Currency)
2052 >          else
2053 >            fdDataSize := SizeOf(Double);
2054 >        end;
2055 >        SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
2056 >          fdDataSize := SizeOf(Double);
2057 >        SQL_BOOLEAN:
2058 >          fdDataSize := SizeOf(wordBool);
2059 >        SQL_VARYING,
2060 >        SQL_TEXT,
2061 >        SQL_BLOB:
2062 >          fdCodePage := Qry.Metadata[i].getCodePage;
2063 >        end;
2064 >        fdDataOfs := FRecordSize;
2065 >        Inc(FRecordSize, fdDataSize);
2066        end;
2067 <    if j > 0 then with p^ do
2067 >    end;
2068 >  end;
2069 > end;
2070 >
2071 > {Update Buffer Fields from Query Results}
2072 >
2073 > procedure TIBCustomDataSet.UpdateRecordFromQuery(QryResults: IResults;
2074 >  Buffer: PChar);
2075 > var i, j: integer;
2076 > begin
2077 >  for i := 0 to QryResults.Count - 1 do
2078 >  begin
2079 >    j := GetFieldPosition(QryResults[i].GetAliasName);
2080 >    if j > 0 then
2081 >    begin
2082 >      ColumnDataToBuffer(QryResults,i,j,Buffer);
2083 >      FBufferUpdatedOnQryReturn := true;
2084 >    end;
2085 >  end;
2086 > end;
2087 >
2088 >
2089 > {Move column data returned from query to row buffer}
2090 >
2091 > procedure TIBCustomDataSet.ColumnDataToBuffer(QryResults: IResults;
2092 >               ColumnIndex, FieldIndex: integer; Buffer: PChar);
2093 > var
2094 >  LocalData: PByte;
2095 >  LocalDate: TDateTime;
2096 >  LocalDouble: Double;
2097 >  LocalInt: Integer;
2098 >  LocalBool: wordBool;
2099 >  LocalInt64: Int64;
2100 >  LocalCurrency: Currency;
2101 >  ColData: ISQLData;
2102 > begin
2103 >  LocalData := nil;
2104 >  with PRecordData(Buffer)^.rdFields[FieldIndex], FFieldColumns^[FieldIndex] do
2105 >  begin
2106 >    QryResults.GetData(ColumnIndex,fdIsNull,fdDataLength,LocalData);
2107 >    if not fdIsNull then
2108      begin
2109 <      rdFields[j].fdDataType :=
2110 <        Qry.Current[i].Data^.sqltype and (not 1);
2111 <      rdFields[j].fdDataScale :=
2112 <        Qry.Current[i].Data^.sqlscale;
1391 <      rdFields[j].fdNullable :=
1392 <        (Qry.Current[i].Data^.sqltype and 1 = 1);
1393 <      rdFields[j].fdIsNull :=
1394 <        (rdFields[j].fdNullable and (Qry.Current[i].Data^.sqlind^ = -1));
1395 <      LocalData := Qry.Current[i].Data^.sqldata;
1396 <      case rdFields[j].fdDataType of
2109 >      ColData := QryResults[ColumnIndex];
2110 >      case fdDataType of  {Get Formatted data for column types that need formatting}
2111 >        SQL_TYPE_DATE,
2112 >        SQL_TYPE_TIME,
2113          SQL_TIMESTAMP:
2114          begin
2115 <          rdFields[j].fdDataSize := SizeOf(TDateTime);
2116 <          if RecordNumber >= 0 then
2117 <            LocalDate := TimeStampToMSecs(DateTimeToTimeStamp(Qry.Current[i].AsDateTime));
1402 <          LocalData := PChar(@LocalDate);
1403 <        end;
1404 <        SQL_TYPE_DATE:
1405 <        begin
1406 <          rdFields[j].fdDataSize := SizeOf(TDateTime);
1407 <          if RecordNumber >= 0 then
1408 <            LocalInt := DateTimeToTimeStamp(Qry.Current[i].AsDateTime).Date;
1409 <          LocalData := PChar(@LocalInt);
1410 <        end;
1411 <        SQL_TYPE_TIME:
1412 <        begin
1413 <          rdFields[j].fdDataSize := SizeOf(TDateTime);
1414 <          if RecordNumber >= 0 then
1415 <            LocalInt := DateTimeToTimeStamp(Qry.Current[i].AsDateTime).Time;
1416 <          LocalData := PChar(@LocalInt);
2115 >          {This is an IBX native format and not the TDataset approach. See also GetFieldData}
2116 >          LocalDate := ColData.AsDateTime;
2117 >          LocalData := PByte(@LocalDate);
2118          end;
2119          SQL_SHORT, SQL_LONG:
2120          begin
2121 <          if (rdFields[j].fdDataScale = 0) then
2121 >          if (fdDataScale = 0) then
2122            begin
2123 <            rdFields[j].fdDataSize := SizeOf(Integer);
2124 <            if RecordNumber >= 0 then
1424 <              LocalInt := Qry.Current[i].AsLong;
1425 <            LocalData := PChar(@LocalInt);
2123 >            LocalInt := ColData.AsLong;
2124 >            LocalData := PByte(@LocalInt);
2125            end
2126 <          else if (rdFields[j].fdDataScale >= (-4)) then
2127 <               begin
2128 <                 rdFields[j].fdDataSize := SizeOf(Currency);
2129 <                 if RecordNumber >= 0 then
2130 <                   LocalCurrency := Qry.Current[i].AsCurrency;
2131 <                 LocalData := PChar(@LocalCurrency);
2132 <               end
2133 <               else begin
2134 <                 rdFields[j].fdDataSize := SizeOf(Double);
2135 <                 if RecordNumber >= 0 then
2136 <                   LocalDouble := Qry.Current[i].AsDouble;
1438 <                LocalData := PChar(@LocalDouble);
1439 <              end;
2126 >          else
2127 >          if (fdDataScale >= (-4)) then
2128 >          begin
2129 >            LocalCurrency := ColData.AsCurrency;
2130 >            LocalData := PByte(@LocalCurrency);
2131 >          end
2132 >          else
2133 >          begin
2134 >           LocalDouble := ColData.AsDouble;
2135 >           LocalData := PByte(@LocalDouble);
2136 >          end;
2137          end;
2138          SQL_INT64:
2139          begin
2140 <          if (rdFields[j].fdDataScale = 0) then
2140 >          if (fdDataScale = 0) then
2141            begin
2142 <            rdFields[j].fdDataSize := SizeOf(Int64);
2143 <            if RecordNumber >= 0 then
1447 <              LocalInt64 := Qry.Current[i].AsInt64;
1448 <            LocalData := PChar(@LocalInt64);
2142 >            LocalInt64 := ColData.AsInt64;
2143 >            LocalData := PByte(@LocalInt64);
2144            end
2145 <          else if (rdFields[j].fdDataScale >= (-4)) then
2146 <               begin
1452 <                 rdFields[j].fdDataSize := SizeOf(Currency);
1453 <                 if RecordNumber >= 0 then
1454 <                   LocalCurrency := Qry.Current[i].AsCurrency;
1455 <                   LocalData := PChar(@LocalCurrency);
1456 <               end
1457 <               else begin
1458 <                  rdFields[j].fdDataSize := SizeOf(Double);
1459 <                  if RecordNumber >= 0 then
1460 <                    LocalDouble := Qry.Current[i].AsDouble;
1461 <                  LocalData := PChar(@LocalDouble);
1462 <               end
1463 <        end;
1464 <        SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
1465 <        begin
1466 <          rdFields[j].fdDataSize := SizeOf(Double);
1467 <          if RecordNumber >= 0 then
1468 <            LocalDouble := Qry.Current[i].AsDouble;
1469 <          LocalData := PChar(@LocalDouble);
1470 <        end;
1471 <        SQL_VARYING:
1472 <        begin
1473 <          rdFields[j].fdDataSize := Qry.Current[i].Data^.sqllen;
1474 <          rdFields[j].fdDataLength := isc_vax_integer(Qry.Current[i].Data^.sqldata, 2);
1475 <          if RecordNumber >= 0 then
2145 >          else
2146 >          if (fdDataScale >= (-4)) then
2147            begin
2148 <            if (rdFields[j].fdDataLength = 0) then
2149 <              LocalData := nil
2148 >            LocalCurrency := ColData.AsCurrency;
2149 >            LocalData := PByte(@LocalCurrency);
2150 >            end
2151              else
2152              begin
2153 <              temp :=  Qry.Current[i];
2154 <              LocalData := @temp.Data^.sqldata[2];
2155 < (*              LocalData := @Qry.Current[i].Data^.sqldata[2];*)
1484 <            end;
1485 <          end;
2153 >              LocalDouble := ColData.AsDouble;
2154 >              LocalData := PByte(@LocalDouble);
2155 >            end
2156          end;
2157 <        else { SQL_TEXT, SQL_BLOB, SQL_ARRAY, SQL_QUAD }
2157 >        SQL_DOUBLE, SQL_FLOAT, SQL_D_FLOAT:
2158          begin
2159 <          rdFields[j].fdDataSize := Qry.Current[i].Data^.sqllen;
2160 <          if (rdFields[j].fdDataType = SQL_TEXT) then
1491 <            rdFields[j].fdDataLength := rdFields[j].fdDataSize;
2159 >          LocalDouble := ColData.AsDouble;
2160 >          LocalData := PByte(@LocalDouble);
2161          end;
2162 <      end;
1494 <      if RecordNumber < 0 then
1495 <      begin
1496 <        rdFields[j].fdIsNull := True;
1497 <        rdFields[j].fdDataOfs := FRecordSize;
1498 <        Inc(FRecordSize, rdFields[j].fdDataSize);
1499 <      end
1500 <      else begin
1501 <        if rdFields[j].fdDataType = SQL_VARYING then
2162 >        SQL_BOOLEAN:
2163          begin
2164 <          if LocalData <> nil then
2165 <            Move(LocalData^, Buffer[rdFields[j].fdDataOfs], rdFields[j].fdDataLength)
2166 <        end
1506 <        else
1507 <          Move(LocalData^, Buffer[rdFields[j].fdDataOfs], rdFields[j].fdDataSize)
2164 >          LocalBool := ColData.AsBoolean;
2165 >          LocalData := PByte(@LocalBool);
2166 >        end;
2167        end;
2168 +
2169 +      if fdDataType = SQL_VARYING then
2170 +        Move(LocalData^, Buffer[fdDataOfs], fdDataLength)
2171 +      else
2172 +        Move(LocalData^, Buffer[fdDataOfs], fdDataSize)
2173 +    end
2174 +    else {Null column}
2175 +    if fdDataType = SQL_VARYING then
2176 +      FillChar(Buffer[fdDataOfs],fdDataLength,0)
2177 +    else
2178 +      FillChar(Buffer[fdDataOfs],fdDataSize,0);
2179 +  end;
2180 + end;
2181 +
2182 + { Read the record from FQSelect.Current into the record buffer
2183 +  Then write the buffer to in memory cache }
2184 + procedure TIBCustomDataSet.FetchCurrentRecordToBuffer(Qry: TIBSQL;
2185 +  RecordNumber: Integer; Buffer: PChar);
2186 + var
2187 +  pbd: PBlobDataArray;
2188 +  pda: PArrayDataArray;
2189 +  i, j: Integer;
2190 +  FieldsLoaded: Integer;
2191 +  p: PRecordData;
2192 + begin
2193 +  if RecordNumber = -1 then
2194 +  begin
2195 +    InitModelBuffer(Qry,Buffer);
2196 +    Exit;
2197 +  end;
2198 +  p := PRecordData(Buffer);
2199 +  { Make sure blob cache is empty }
2200 +  pbd := PBlobDataArray(Buffer + FBlobCacheOffset);
2201 +  pda := PArrayDataArray(Buffer + FArrayCacheOffset);
2202 +  for i := 0 to BlobFieldCount - 1 do
2203 +    pbd^[i] := nil;
2204 +  for i := 0 to ArrayFieldCount - 1 do
2205 +    pda^[i] := nil;
2206 +
2207 +  { Get record information }
2208 +  p^.rdBookmarkFlag := bfCurrent;
2209 +  p^.rdFieldCount := Qry.FieldCount;
2210 +  p^.rdRecordNumber := RecordNumber;
2211 +  p^.rdUpdateStatus := usUnmodified;
2212 +  p^.rdCachedUpdateStatus := cusUnmodified;
2213 +  p^.rdSavedOffset := $FFFFFFFF;
2214 +
2215 +  { Load up the fields }
2216 +  FieldsLoaded := FQSelect.MetaData.Count;
2217 +  j := 1;
2218 +  for i := 0 to Qry.FieldCount - 1 do
2219 +  begin
2220 +    if (Qry = FQSelect) then
2221 +      j := i + 1
2222 +    else
2223 +    begin
2224 +      if FieldsLoaded = 0 then
2225 +        break;
2226 +      j := FQSelect.FieldIndex[Qry[i].Name] + 1;
2227 +      if j < 1 then
2228 +        continue
2229 +      else
2230 +        Dec(FieldsLoaded);
2231      end;
2232 +    with FQSelect.MetaData[j - 1] do
2233 +      if GetAliasname = 'IBX_INTERNAL_DBKEY' then {do not localize}
2234 +      begin
2235 +        if (GetSize <= 8) then
2236 +          p^.rdDBKey := PIBDBKEY(Qry[i].AsPointer)^;
2237 +        continue;
2238 +      end;
2239 +    if j > 0 then
2240 +      ColumnDataToBuffer(Qry.Current,i,j,Buffer);
2241    end;
2242 <  WriteRecordCache(RecordNumber, PChar(p));
2242 >  WriteRecordCache(RecordNumber, Buffer);
2243   end;
2244  
2245   function TIBCustomDataSet.GetActiveBuf: PChar;
# Line 1553 | Line 2284 | begin
2284    result := FBase.Database;
2285   end;
2286  
1556 function TIBCustomDataSet.GetDBHandle: PISC_DB_HANDLE;
1557 begin
1558  result := FBase.DBHandle;
1559 end;
1560
2287   function TIBCustomDataSet.GetDeleteSQL: TStrings;
2288   begin
2289    result := FQDelete.SQL;
# Line 1568 | Line 2294 | begin
2294    result := FQInsert.SQL;
2295   end;
2296  
2297 < function TIBCustomDataSet.GetSQLParams: TIBXSQLDA;
2297 > function TIBCustomDataSet.GetSQLParams: ISQLParams;
2298   begin
2299    if not FInternalPrepared then
2300      InternalPrepare;
# Line 1585 | Line 2311 | begin
2311    result := FQSelect.SQL;
2312   end;
2313  
2314 < function TIBCustomDataSet.GetStatementType: TIBSQLTypes;
2314 > function TIBCustomDataSet.GetStatementType: TIBSQLStatementTypes;
2315   begin
2316 <  result := FQSelect.SQLType;
2316 >  result := FQSelect.SQLStatementType;
2317   end;
2318  
2319   function TIBCustomDataSet.GetModifySQL: TStrings;
# Line 1600 | Line 2326 | begin
2326    result := FBase.Transaction;
2327   end;
2328  
1603 function TIBCustomDataSet.GetTRHandle: PISC_TR_HANDLE;
1604 begin
1605  result := FBase.TRHandle;
1606 end;
1607
2329   procedure TIBCustomDataSet.InternalDeleteRecord(Qry: TIBSQL; Buff: Pointer);
2330   begin
2331    if (Assigned(FUpdateObject) and (FUpdateObject.GetSQL(ukDelete).Text <> '')) then
2332      FUpdateObject.Apply(ukDelete,Buff)
2333    else
2334    begin
2335 <    SetInternalSQLParams(FQDelete, Buff);
2335 >    SetInternalSQLParams(FQDelete.Params, Buff);
2336      FQDelete.ExecQuery;
2337 +    if (FQDelete.FieldCount > 0)  then
2338 +      DoDeleteReturning(FQDelete.Current);
2339    end;
2340    with PRecordData(Buff)^ do
2341    begin
# Line 1626 | Line 2349 | function TIBCustomDataSet.InternalLocate
2349    const KeyValues: Variant; Options: TLocateOptions): Boolean;
2350   var
2351    keyFieldList: TList;
1629  {$IF FPC_FULLVERSION >  20602 }
2352    CurBookmark: TBookmark;
1631  {$ELSE}
1632  CurBookmark: string;
1633  {$ENDIF}
2353    fieldValue: Variant;
2354    lookupValues: array of variant;
2355    i, fieldCount: Integer;
# Line 1712 | Line 2431 | end;
2431  
2432   procedure TIBCustomDataSet.InternalPostRecord(Qry: TIBSQL; Buff: Pointer);
2433   var
2434 <  i, j, k: Integer;
2434 >  i, j, k, arr: Integer;
2435    pbd: PBlobDataArray;
2436 +  pda: PArrayDataArray;
2437   begin
2438    pbd := PBlobDataArray(PChar(Buff) + FBlobCacheOffset);
2439 <  j := 0;
2439 >  pda := PArrayDataArray(PChar(Buff) + FArrayCacheOffset);
2440 >  j := 0; arr := 0;
2441    for i := 0 to FieldCount - 1 do
2442      if Fields[i].IsBlob then
2443      begin
# Line 1725 | Line 2446 | begin
2446        begin
2447          pbd^[j].Finalize;
2448          PISC_QUAD(
2449 <          PChar(Buff) + PRecordData(Buff)^.rdFields[k].fdDataOfs)^ :=
2449 >          PChar(Buff) + FFieldColumns^[k].fdDataOfs)^ :=
2450            pbd^[j].BlobID;
2451          PRecordData(Buff)^.rdFields[k].fdIsNull := pbd^[j].Size = 0;
2452 +      end
2453 +      else
2454 +      begin
2455 +        PRecordData(Buff)^.rdFields[k].fdIsNull := true;
2456 +        with PISC_QUAD(PChar(Buff) + FFieldColumns^[k].fdDataOfs)^ do
2457 +        begin
2458 +          gds_quad_high := 0;
2459 +          gds_quad_low := 0;
2460 +        end;
2461        end;
2462        Inc(j);
2463 +    end
2464 +    else
2465 +    if Fields[i] is TIBArrayField then
2466 +    begin
2467 +      if pda^[arr] <> nil then
2468 +      begin
2469 +        k := FMappedFieldPosition[Fields[i].FieldNo -1];
2470 +        PISC_QUAD(
2471 +          PChar(Buff) + FFieldColumns^[k].fdDataOfs)^ :=  pda^[arr].ArrayIntf.GetArrayID;
2472 +        PRecordData(Buff)^.rdFields[k].fdIsNull := pda^[arr].ArrayIntf.IsEmpty;
2473 +      end;
2474 +      Inc(arr);
2475      end;
2476 +  FBufferUpdatedOnQryReturn := false;
2477    if Assigned(FUpdateObject) then
2478    begin
2479      if (Qry = FQDelete) then
# Line 1741 | Line 2484 | begin
2484        FUpdateObject.Apply(ukModify,Buff);
2485    end
2486    else begin
2487 <    SetInternalSQLParams(Qry, Buff);
2487 >    SetInternalSQLParams(Qry.Params, Buff);
2488      Qry.ExecQuery;
2489 +    if Qry.FieldCount > 0 then {Has RETURNING Clause}
2490 +      UpdateRecordFromQuery(Qry.Current,Buff);
2491    end;
2492    PRecordData(Buff)^.rdUpdateStatus := usUnmodified;
2493    PRecordData(Buff)^.rdCachedUpdateStatus := cusUnmodified;
2494    SetModified(False);
2495    WriteRecordCache(PRecordData(Buff)^.rdRecordNumber, Buff);
2496 <  if (FForcedRefresh or FNeedsRefresh) and CanRefresh then
2496 >  if (FForcedRefresh or (FNeedsRefresh and not FBufferUpdatedOnQryReturn)) and CanRefresh then
2497      InternalRefreshRow;
2498   end;
2499  
2500   procedure TIBCustomDataSet.InternalRefreshRow;
2501   var
2502    Buff: PChar;
1758  SetCursor: Boolean;
2503    ofs: DWORD;
2504    Qry: TIBSQL;
2505   begin
2506 <  SetCursor := (GetCurrentThreadID = MainThreadID) and (Screen.Cursor = crDefault);
1763 <  if SetCursor then
1764 <    Screen.Cursor := crHourGlass;
2506 >  FBase.SetCursor;
2507    try
2508      Buff := GetActiveBuf;
2509      if CanRefresh then
# Line 1778 | Line 2520 | begin
2520          end
2521          else
2522            Qry := FQRefresh;
2523 <        SetInternalSQLParams(Qry, Buff);
2523 >        SetInternalSQLParams(Qry.Params, Buff);
2524          Qry.ExecQuery;
2525          try
2526 <          if (Qry.SQLType = SQLExecProcedure) or
1785 <             (Qry.Next <> nil) then
2526 >          if (Qry.SQLStatementType = SQLExecProcedure) or Qry.Next then
2527            begin
2528              ofs := PRecordData(Buff)^.rdSavedOffset;
2529              FetchCurrentRecordToBuffer(Qry,
# Line 1805 | Line 2546 | begin
2546      else
2547        IBError(ibxeCannotRefresh, [nil]);
2548    finally
2549 <    if SetCursor and (Screen.Cursor = crHourGlass) then
1809 <      Screen.Cursor := crDefault;
2549 >    FBase.RestoreCursor;
2550    end;
2551   end;
2552  
# Line 1876 | Line 2616 | begin
2616   end;
2617  
2618   procedure TIBCustomDataSet.InternalPrepare;
1879 var
1880  SetCursor: Boolean;
1881  DidActivate: Boolean;
2619   begin
2620    if FInternalPrepared then
2621      Exit;
2622 <  DidActivate := False;
1886 <  SetCursor := (GetCurrentThreadID = MainThreadID) and (Screen.Cursor = crDefault);
1887 <  if SetCursor then
1888 <    Screen.Cursor := crHourGlass;
2622 >  FBase.SetCursor;
2623    try
2624      ActivateConnection;
2625 <    DidActivate := ActivateTransaction;
2625 >    ActivateTransaction;
2626      FBase.CheckDatabase;
2627      FBase.CheckTransaction;
2628 +    if HasParser and (FParser.SQLText <> FQSelect.SQL.Text) then
2629 +    begin
2630 +      FQSelect.OnSQLChanged := nil; {Do not react to change}
2631 +      try
2632 +        FQSelect.SQL.Text := FParser.SQLText;
2633 +      finally
2634 +        FQSelect.OnSQLChanged := SQLChanged;
2635 +      end;
2636 +    end;
2637 + //   writeln( FQSelect.SQL.Text);
2638      if FQSelect.SQL.Text <> '' then
2639      begin
2640        if not FQSelect.Prepared then
2641        begin
2642 +        FQSelect.GenerateParamNames := FGenerateParamNames;
2643          FQSelect.ParamCheck := ParamCheck;
2644          FQSelect.Prepare;
2645        end;
2646 +      FQDelete.GenerateParamNames := FGenerateParamNames;
2647        if (Trim(FQDelete.SQL.Text) <> '') and (not FQDelete.Prepared) then
2648          FQDelete.Prepare;
2649 +      FQInsert.GenerateParamNames := FGenerateParamNames;
2650        if (Trim(FQInsert.SQL.Text) <> '') and (not FQInsert.Prepared) then
2651          FQInsert.Prepare;
2652 +      FQRefresh.GenerateParamNames := FGenerateParamNames;
2653        if (Trim(FQRefresh.SQL.Text) <> '') and (not FQRefresh.Prepared) then
2654          FQRefresh.Prepare;
2655 +      FQModify.GenerateParamNames := FGenerateParamNames;
2656        if (Trim(FQModify.SQL.Text) <> '') and (not FQModify.Prepared) then
2657          FQModify.Prepare;
2658        FInternalPrepared := True;
# Line 1911 | Line 2660 | begin
2660      end else
2661        IBError(ibxeEmptyQuery, [nil]);
2662    finally
2663 <    if DidActivate then
1915 <      DeactivateTransaction;
1916 <    if SetCursor and (Screen.Cursor = crHourGlass) then
1917 <      Screen.Cursor := crDefault;
2663 >    FBase.RestoreCursor;
2664    end;
2665   end;
2666  
# Line 1943 | Line 2689 | var
2689    begin
2690      CopyRecordBuffer(Buffer, OldBuffer);
2691      if BlobFieldCount > 0 then
2692 <      FillChar(PChar(OldBuffer)[FBlobCacheOffset], BlobFieldCount * SizeOf(TIBBlobStream),
2692 >      FillChar(PChar(OldBuffer)[FBlobCacheOffset],
2693 >               BlobFieldCount * SizeOf(TIBBlobStream) + ArrayFieldCount * SizeOf(IArray),
2694                 0);
2695    end;
2696  
# Line 1982 | Line 2729 | end;
2729  
2730   procedure TIBCustomDataSet.SetDatabase(Value: TIBDatabase);
2731   begin
2732 <  if (FBase.Database <> Value) then
2732 >  if (csLoading in ComponentState) or (FBase.Database <> Value) then
2733    begin
2734      CheckDatasetClosed;
2735 +    InternalUnPrepare;
2736      FBase.Database := Value;
2737      FQDelete.Database := Value;
2738      FQInsert.Database := Value;
2739      FQRefresh.Database := Value;
2740      FQSelect.Database := Value;
2741      FQModify.Database := Value;
2742 +    FDatabaseInfo.Database := Value;
2743 +    FGeneratorField.Database := Value;
2744    end;
2745   end;
2746  
# Line 2012 | Line 2762 | begin
2762    end;
2763   end;
2764  
2765 < procedure TIBCustomDataSet.SetInternalSQLParams(Qry: TIBSQL; Buffer: Pointer);
2765 > procedure TIBCustomDataSet.SetInternalSQLParams(Params: ISQLParams; Buffer: Pointer);
2766   var
2767    i, j: Integer;
2768    cr, data: PChar;
2769 <  fn, st: string;
2769 >  fn: string;
2770 >  st: RawByteString;
2771    OldBuffer: Pointer;
2772    ts: TTimeStamp;
2773 +  Param: ISQLParam;
2774   begin
2775    if (Buffer = nil) then
2776      IBError(ibxeBufferNotSet, [nil]);
# Line 2026 | Line 2778 | begin
2778      InternalPrepare;
2779    OldBuffer := nil;
2780    try
2781 <    for i := 0 to Qry.Params.Count - 1 do
2781 >    for i := 0 to Params.GetCount - 1 do
2782      begin
2783 <      fn := Qry.Params[i].Name;
2783 >      Param := Params[i];
2784 >      fn := Param.Name;
2785        if (Pos('OLD_', fn) = 1) then {mbcs ok}
2786        begin
2787          fn := Copy(fn, 5, Length(fn));
# Line 2048 | Line 2801 | begin
2801               cr := Buffer;
2802        j := FQSelect.FieldIndex[fn] + 1;
2803        if (j > 0) then
2804 <        with PRecordData(cr)^ do
2804 >        with PRecordData(cr)^,rdFields[j], FFieldColumns^[j] do
2805          begin
2806 <          if Qry.Params[i].name = 'IBX_INTERNAL_DBKEY' then {do not localize}
2806 >          if Param.name = 'IBX_INTERNAL_DBKEY' then {do not localize}
2807            begin
2808 <            PIBDBKey(Qry.Params[i].AsPointer)^ := rdDBKey;
2808 >            PIBDBKey(Param.AsPointer)^ := rdDBKey;
2809              continue;
2810            end;
2811 <          if rdFields[j].fdIsNull then
2812 <            Qry.Params[i].IsNull := True
2811 >          if fdIsNull then
2812 >            Param.IsNull := True
2813            else begin
2814 <            Qry.Params[i].IsNull := False;
2815 <            data := cr + rdFields[j].fdDataOfs;
2816 <            case rdFields[j].fdDataType of
2814 >            Param.IsNull := False;
2815 >            data := cr + fdDataOfs;
2816 >            case fdDataType of
2817                SQL_TEXT, SQL_VARYING:
2818                begin
2819 <                SetString(st, data, rdFields[j].fdDataLength);
2820 <                Qry.Params[i].AsString := st;
2819 >                SetString(st, data, fdDataLength);
2820 >                SetCodePage(st,fdCodePage,false);
2821 >                Param.AsString := st;
2822                end;
2823              SQL_FLOAT, SQL_DOUBLE, SQL_D_FLOAT:
2824 <              Qry.Params[i].AsDouble := PDouble(data)^;
2824 >              Param.AsDouble := PDouble(data)^;
2825              SQL_SHORT, SQL_LONG:
2826              begin
2827 <              if rdFields[j].fdDataScale = 0 then
2828 <                Qry.Params[i].AsLong := PLong(data)^
2075 <              else if rdFields[j].fdDataScale >= (-4) then
2076 <                Qry.Params[i].AsCurrency := PCurrency(data)^
2827 >              if fdDataScale = 0 then
2828 >                Param.AsLong := PLong(data)^
2829                else
2830 <                Qry.Params[i].AsDouble := PDouble(data)^;
2830 >              if fdDataScale >= (-4) then
2831 >                Param.AsCurrency := PCurrency(data)^
2832 >              else
2833 >                Param.AsDouble := PDouble(data)^;
2834              end;
2835              SQL_INT64:
2836              begin
2837 <              if rdFields[j].fdDataScale = 0 then
2838 <                Qry.Params[i].AsInt64 := PInt64(data)^
2839 <              else if rdFields[j].fdDataScale >= (-4) then
2840 <                Qry.Params[i].AsCurrency := PCurrency(data)^
2837 >              if fdDataScale = 0 then
2838 >                Param.AsInt64 := PInt64(data)^
2839 >              else
2840 >              if fdDataScale >= (-4) then
2841 >                Param.AsCurrency := PCurrency(data)^
2842                else
2843 <                Qry.Params[i].AsDouble := PDouble(data)^;
2843 >                Param.AsDouble := PDouble(data)^;
2844              end;
2845              SQL_BLOB, SQL_ARRAY, SQL_QUAD:
2846 <              Qry.Params[i].AsQuad := PISC_QUAD(data)^;
2847 <            SQL_TYPE_DATE:
2848 <            begin
2093 <              ts.Date := PInt(data)^;
2094 <              ts.Time := 0;
2095 <              Qry.Params[i].AsDate :=
2096 <                TimeStampToDateTime(ts);
2097 <            end;
2098 <            SQL_TYPE_TIME:
2099 <            begin
2100 <              ts.Date := 0;
2101 <              ts.Time := PInt(data)^;
2102 <              Qry.Params[i].AsTime :=
2103 <                TimeStampToDateTime(ts);
2104 <            end;
2846 >              Param.AsQuad := PISC_QUAD(data)^;
2847 >            SQL_TYPE_DATE,
2848 >            SQL_TYPE_TIME,
2849              SQL_TIMESTAMP:
2850 <              Qry.Params[i].AsDateTime :=
2851 <                       TimeStampToDateTime(MSecsToTimeStamp(trunc(PDouble(data)^)));
2850 >            {This is an IBX native format and not the TDataset approach. See also SetFieldData}
2851 >              Param.AsDateTime := PDateTime(data)^;
2852 >            SQL_BOOLEAN:
2853 >              Param.AsBoolean := PWordBool(data)^;
2854            end;
2855          end;
2856        end;
# Line 2153 | Line 2899 | begin
2899      FQRefresh.Transaction := Value;
2900      FQSelect.Transaction := Value;
2901      FQModify.Transaction := Value;
2902 +    FGeneratorField.Transaction := Value;
2903    end;
2904   end;
2905  
# Line 2190 | Line 2937 | begin
2937    end;
2938   end;
2939  
2940 + procedure TIBCustomDataSet.RegisterIBLink(Sender: TIBControlLink);
2941 + begin
2942 +  if FIBLinks.IndexOf(Sender) = -1 then
2943 +    FIBLinks.Add(Sender);
2944 + end;
2945 +
2946  
2947   procedure TIBCustomDataSet.SQLChanging(Sender: TObject);
2948   begin
2949 <  if FOpen then
2950 <    InternalClose;
2949 >  Active := false;
2950 > {  if FOpen then
2951 >    InternalClose;}
2952    if FInternalPrepared then
2953      InternalUnPrepare;
2954 +  FieldDefs.Clear;
2955 +  FieldDefs.Updated := false;
2956 + end;
2957 +
2958 + procedure TIBCustomDataSet.SQLChanged(Sender: TObject);
2959 + begin
2960 +  FBaseSQLSelect.assign(FQSelect.SQL);
2961   end;
2962  
2963   { I can "undelete" uninserted records (make them "inserted" again).
# Line 2225 | Line 2986 | begin
2986    end;
2987   end;
2988  
2989 + procedure TIBCustomDataSet.UnRegisterIBLink(Sender: TIBControlLink);
2990 + begin
2991 +  FIBLinks.Remove(Sender);
2992 + end;
2993 +
2994   function TIBCustomDataSet.UpdateStatus: TUpdateStatus;
2995   begin
2996    if Active then
# Line 2241 | Line 3007 | begin
3007    Result := Assigned( FQSelect ) and FQSelect.EOF;
3008   end;
3009  
3010 < function TIBCustomDataSet.ParamByName(ParamName: String): TIBXSQLVAR;
3010 > function TIBCustomDataSet.ParamByName(ParamName: String): ISQLParam;
3011   begin
3012    ActivateConnection;
3013    ActivateTransaction;
# Line 2378 | Line 3144 | var
3144    Buff: PChar;
3145    bTr, bDB: Boolean;
3146   begin
3147 +  if (Field = nil) or (Field.DataSet <> self) then
3148 +    IBError(ibxFieldNotinDataSet,[Field.Name,Name]);
3149    Buff := GetActiveBuf;
3150    if Buff = nil then
3151    begin
3152      fs := TIBBlobStream.Create;
3153      fs.Mode := bmReadWrite;
3154 +    fs.Database := Database;
3155 +    fs.Transaction := Transaction;
3156 +    fs.SetField(Field);
3157      FBlobStreamList.Add(Pointer(fs));
3158      result := TIBDSBlobStream.Create(Field, fs, Mode);
3159      exit;
# Line 2397 | Line 3168 | begin
3168      fs.Mode := bmReadWrite;
3169      fs.Database := Database;
3170      fs.Transaction := Transaction;
3171 +    fs.SetField(Field);
3172      fs.BlobID :=
3173 <      PISC_QUAD(@Buff[PRecordData(Buff)^.rdFields[FMappedFieldPosition[Field.FieldNo - 1]].fdDataOfs])^;
3173 >      PISC_QUAD(@Buff[FFieldColumns^[FMappedFieldPosition[Field.FieldNo - 1]].fdDataOfs])^;
3174      if (CachedUpdates) then
3175      begin
3176        bTr := not Transaction.InTransaction;
# Line 2419 | Line 3191 | begin
3191    result := TIBDSBlobStream.Create(Field, fs, Mode);
3192   end;
3193  
3194 + function TIBCustomDataSet.GetArray(Field: TIBArrayField): IArray;
3195 + var Buff: PChar;
3196 +    pda: PArrayDataArray;
3197 +    bTr, bDB: Boolean;
3198 + begin
3199 +  if (Field = nil) or (Field.DataSet <> self) then
3200 +    IBError(ibxFieldNotinDataSet,[Field.Name,Name]);
3201 +  Buff := GetActiveBuf;
3202 +  if Buff = nil then
3203 +    Result := Database.Attachment.CreateArray(Transaction.TransactionIntf,
3204 +                              Field.FRelationName,Field.FieldName)
3205 +  else
3206 +  begin
3207 +    pda := PArrayDataArray(Buff + FArrayCacheOffset);
3208 +    if pda^[Field.FCacheOffset] = nil then
3209 +    begin
3210 +      AdjustRecordOnInsert(Buff);
3211 +      if Field.IsNull then
3212 +        Result := Database.Attachment.CreateArray(Transaction.TransactionIntf,
3213 +                                Field.FRelationName,Field.FieldName)
3214 +      else
3215 +        Result := Database.Attachment.OpenArray(Transaction.TransactionIntf,
3216 +                            Field.FRelationName,Field.FieldName,Field.ArrayID);
3217 +      pda^[Field.FCacheOffset] := TIBArray.Create(Field,Result);
3218 +      FArrayList.Add(pda^[Field.FCacheOffset]);
3219 +      if (CachedUpdates) then
3220 +      begin
3221 +        bTr := not Transaction.InTransaction;
3222 +        bDB := not Database.Connected;
3223 +        if bDB then
3224 +          Database.Open;
3225 +        if bTr then
3226 +          Transaction.StartTransaction;
3227 +         pda^[Field.FCacheOffset].ArrayIntf.PreLoad;
3228 +        if bTr then
3229 +          Transaction.Commit;
3230 +        if bDB then
3231 +          Database.Close;
3232 +      end;
3233 +      WriteRecordCache(PRecordData(Buff)^.rdRecordNumber, Pointer(Buff));
3234 +    end
3235 +    else
3236 +      Result := pda^[Field.FCacheOffset].ArrayIntf;
3237 +  end;
3238 + end;
3239 +
3240 + procedure TIBCustomDataSet.SetArrayIntf(AnArray: IArray; Field: TIBArrayField);
3241 + var Buff: PChar;
3242 +    pda: PArrayDataArray;
3243 + begin
3244 +  if (Field = nil) or (Field.DataSet <> self) then
3245 +    IBError(ibxFieldNotinDataSet,[Field.Name,Name]);
3246 +  Buff := GetActiveBuf;
3247 +  if Buff <> nil then
3248 +  begin
3249 +    AdjustRecordOnInsert(Buff);
3250 +    pda := PArrayDataArray(Buff + FArrayCacheOffset);
3251 +    pda^[Field.FCacheOffset].FArray := AnArray;
3252 +    WriteRecordCache(PRecordData(Buff)^.rdRecordNumber, Pointer(Buff));
3253 +  end;
3254 + end;
3255 +
3256   function TIBCustomDataSet.CompareBookmarks(Bookmark1, Bookmark2: TBookmark): Integer;
3257   const
3258    CMPLess = -1;
# Line 2454 | Line 3288 | begin
3288    inherited DoBeforeDelete;
3289   end;
3290  
3291 + procedure TIBCustomDataSet.DoAfterDelete;
3292 + begin
3293 +  inherited DoAfterDelete;
3294 +  FBase.DoAfterDelete(self);
3295 +  InternalAutoCommit;
3296 + end;
3297 +
3298   procedure TIBCustomDataSet.DoBeforeEdit;
3299   var
3300    Buff: PRecordData;
# Line 2468 | Line 3309 | begin
3309    inherited DoBeforeEdit;
3310   end;
3311  
3312 + procedure TIBCustomDataSet.DoAfterEdit;
3313 + begin
3314 +  inherited DoAfterEdit;
3315 +  FBase.DoAfterEdit(self);
3316 + end;
3317 +
3318   procedure TIBCustomDataSet.DoBeforeInsert;
3319   begin
3320    if not CanInsert then
# Line 2480 | Line 3327 | begin
3327    if GeneratorField.ApplyOnEvent = gaeOnNewRecord then
3328      GeneratorField.Apply;
3329    inherited DoAfterInsert;
3330 +  FBase.DoAfterInsert(self);
3331 + end;
3332 +
3333 + procedure TIBCustomDataSet.DoBeforeClose;
3334 + begin
3335 +  inherited DoBeforeClose;
3336 +  if FInTransactionEnd and (FCloseAction = TARollback) then
3337 +     Exit;
3338 +  if State in [dsInsert,dsEdit] then
3339 +  begin
3340 +    if DataSetCloseAction = dcSaveChanges then
3341 +      Post;
3342 +      {Note this can fail with an exception e.g. due to
3343 +       database validation error. In which case the dataset remains open }
3344 +  end;
3345 +  if FCachedUpdates and FUpdatesPending and (DataSetCloseAction = dcSaveChanges) then
3346 +    ApplyUpdates;
3347 + end;
3348 +
3349 + procedure TIBCustomDataSet.DoBeforeOpen;
3350 + var i: integer;
3351 + begin
3352 +  if assigned(FParser) then
3353 +     FParser.Reset;
3354 +  for i := 0 to FIBLinks.Count - 1 do
3355 +    TIBControlLink(FIBLinks[i]).UpdateSQL(self);
3356 +  inherited DoBeforeOpen;
3357 +  for i := 0 to FIBLinks.Count - 1 do
3358 +    TIBControlLink(FIBLinks[i]).UpdateParams(self);
3359   end;
3360  
3361   procedure TIBCustomDataSet.DoBeforePost;
# Line 2490 | Line 3366 | begin
3366       GeneratorField.Apply
3367   end;
3368  
3369 + procedure TIBCustomDataSet.DoAfterPost;
3370 + begin
3371 +  inherited DoAfterPost;
3372 +  FBase.DoAfterPost(self);
3373 +  InternalAutoCommit;
3374 + end;
3375 +
3376   procedure TIBCustomDataSet.FetchAll;
3377   var
2495  SetCursor: Boolean;
2496  {$IF FPC_FULLVERSION >  20602 }
3378    CurBookmark: TBookmark;
3379 <  {$ELSE}
3380 <  CurBookmark: string;
3381 <  {$ENDIF}
2501 < begin
2502 <  SetCursor := (GetCurrentThreadID = MainThreadID) and (Screen.Cursor = crDefault);
2503 <  if SetCursor then
2504 <    Screen.Cursor := crHourGlass;
2505 <  try
3379 > begin
3380 >  FBase.SetCursor;
3381 > try
3382      if FQSelect.EOF or not FQSelect.Open then
3383        exit;
3384      DisableControls;
# Line 2514 | Line 3390 | begin
3390        EnableControls;
3391      end;
3392    finally
3393 <    if SetCursor and (Screen.Cursor = crHourGlass) then
2518 <      Screen.Cursor := crDefault;
3393 >    FBase.RestoreCursor;
3394    end;
3395   end;
3396  
# Line 2563 | Line 3438 | begin
3438      result := FDataLink.DataSource;
3439   end;
3440  
3441 + function TIBCustomDataSet.GetDBAliasName(FieldNo: integer): string;
3442 + begin
3443 +  Result := FAliasNameMap[FieldNo-1]
3444 + end;
3445 +
3446 + function TIBCustomDataSet.GetFieldDefFromAlias(aliasName: string): TFieldDef;
3447 + var
3448 +   i: integer;
3449 + begin
3450 +   Result := nil;
3451 +   for i := 0 to Length(FAliasNameMap) - 1 do
3452 +       if FAliasNameMap[i] = aliasName then
3453 +       begin
3454 +         Result := FieldDefs[i];
3455 +         Exit
3456 +       end;
3457 + end;
3458 +
3459   function TIBCustomDataSet.GetFieldClass(FieldType: TFieldType): TFieldClass;
3460   begin
3461    Result := DefaultFieldClasses[FieldType];
# Line 2593 | Line 3486 | begin
3486      if result and (Buffer <> nil) then
3487        Move(Buff[1], Buffer^, Field.DataSize);
3488    end
3489 <  else if (FMappedFieldPosition[Field.FieldNo - 1] > 0) and
3489 >  else
3490 >  if (FMappedFieldPosition[Field.FieldNo - 1] > 0) and
3491       (FMappedFieldPosition[Field.FieldNo - 1] <= CurrentRecord^.rdFieldCount) then
3492 +  with CurrentRecord^.rdFields[FMappedFieldPosition[Field.FieldNo - 1]],
3493 +                         FFieldColumns^[FMappedFieldPosition[Field.FieldNo - 1]] do
3494    begin
3495 <    result := not CurrentRecord^.rdFields[FMappedFieldPosition[Field.FieldNo - 1]].fdIsNull;
3495 >    result := not fdIsNull;
3496      if result and (Buffer <> nil) then
2601      with CurrentRecord^.rdFields[FMappedFieldPosition[Field.FieldNo - 1]] do
3497        begin
3498 <        Data := Buff + CurrentRecord^.rdFields[FMappedFieldPosition[Field.FieldNo - 1]].fdDataOfs;
3498 >        Data := Buff + fdDataOfs;
3499          if (fdDataType = SQL_VARYING) or (fdDataType = SQL_TEXT) then
3500          begin
3501 <          if fdDataLength <= Field.Size then
3501 >          if fdDataLength < Field.DataSize then
3502            begin
3503              Move(Data^, Buffer^, fdDataLength);
3504              PChar(Buffer)[fdDataLength] := #0;
# Line 2652 | Line 3547 | begin
3547          if not Accept and (GetMode = gmCurrent) then
3548            GetMode := gmPrior;
3549        except
3550 < //        Application.HandleException(Self);
3550 > //        FBase.HandleException(Self);
3551        end;
3552      end;
3553      RestoreState(SaveState);
# Line 2671 | Line 3566 | begin
3566          if FCurrentRecord < FRecordCount then
3567            ReadRecordCache(FCurrentRecord, Buffer, False)
3568          else begin
3569 <          while (not FQSelect.EOF) and
2675 <                (FQSelect.Next <> nil) and
3569 >          while (not FQSelect.EOF) and FQSelect.Next  and
3570                  (FCurrentRecord >= FRecordCount) do begin
3571              FetchCurrentRecordToBuffer(FQSelect, FRecordCount, Buffer);
3572              Inc(FRecordCount);
# Line 2746 | Line 3640 | begin
3640    result := FRecordBufferSize;
3641   end;
3642  
3643 + procedure TIBCustomDataSet.InternalAutoCommit;
3644 + begin
3645 +  with Transaction do
3646 +    if InTransaction and (FAutoCommit = acCommitRetaining) then
3647 +    begin
3648 +      if CachedUpdates then ApplyUpdates;
3649 +      CommitRetaining;
3650 +    end;
3651 + end;
3652 +
3653   procedure TIBCustomDataSet.InternalAddRecord(Buffer: Pointer; Append: Boolean);
3654   begin
3655    CheckEditState;
# Line 2773 | Line 3677 | procedure TIBCustomDataSet.InternalCance
3677   var
3678    Buff: PChar;
3679    CurRec: Integer;
3680 +  pda: PArrayDataArray;
3681 +  i: integer;
3682   begin
3683    inherited InternalCancel;
3684    Buff := GetActiveBuf;
3685 <  if Buff <> nil then begin
3685 >  if Buff <> nil then
3686 >  begin
3687 >    pda := PArrayDataArray(Buff + FArrayCacheOffset);
3688 >    for i := 0 to ArrayFieldCount - 1 do
3689 >      pda^[i].ArrayIntf.CancelChanges;
3690      CurRec := FCurrentRecord;
3691      AdjustRecordOnInsert(Buff);
3692      if (State = dsEdit) then begin
# Line 2799 | Line 3709 | begin
3709      DeactivateTransaction;
3710    FQSelect.Close;
3711    ClearBlobCache;
3712 +  ClearArrayCache;
3713    FreeRecordBuffer(FModelBuffer);
3714    FreeRecordBuffer(FOldBuffer);
3715    FCurrentRecord := -1;
# Line 2814 | Line 3725 | begin
3725    FOBEnd := 0;
3726    FreeMem(FBufferCache);
3727    FBufferCache := nil;
3728 +  FreeMem(FFieldColumns);
3729 +  FFieldColumns := nil;
3730    FreeMem(FOldBufferCache);
3731    FOldBufferCache := nil;
3732    BindFields(False);
3733 +  ResetParser;
3734    if DefaultFields then DestroyFields;
3735   end;
3736  
3737   procedure TIBCustomDataSet.InternalDelete;
3738   var
3739    Buff: PChar;
2826  SetCursor: Boolean;
3740   begin
3741 <  SetCursor := (GetCurrentThreadID = MainThreadID) and (Screen.Cursor = crDefault);
2829 <  if SetCursor then
2830 <    Screen.Cursor := crHourGlass;
3741 >  FBase.SetCursor;
3742    try
3743      Buff := GetActiveBuf;
3744      if CanDelete then
# Line 2852 | Line 3763 | begin
3763      end else
3764        IBError(ibxeCannotDelete, [nil]);
3765    finally
3766 <    if SetCursor and (Screen.Cursor = crHourGlass) then
2856 <      Screen.Cursor := crDefault;
3766 >    FBase.RestoreCursor;
3767    end;
3768   end;
3769  
# Line 2869 | Line 3779 | end;
3779  
3780   procedure TIBCustomDataSet.InternalHandleException;
3781   begin
3782 <  Application.HandleException(Self)
3782 >  FBase.HandleException(Self)
3783   end;
3784  
3785   procedure TIBCustomDataSet.InternalInitFieldDefs;
3786 + begin
3787 +  if not InternalPrepared then
3788 +  begin
3789 +    InternalPrepare;
3790 +    exit;
3791 +  end;
3792 +   FieldDefsFromQuery(FQSelect);
3793 + end;
3794 +
3795 + procedure TIBCustomDataSet.FieldDefsFromQuery(SourceQuery: TIBSQL);
3796   const
3797    DefaultSQL = 'Select F.RDB$COMPUTED_BLR, ' + {do not localize}
3798                 'F.RDB$DEFAULT_VALUE, R.RDB$FIELD_NAME ' + {do not localize}
# Line 2881 | Line 3801 | const
3801                 'and R.RDB$FIELD_SOURCE = F.RDB$FIELD_NAME '+ {do not localize}
3802                 'and ((not F.RDB$COMPUTED_BLR is NULL) or ' + {do not localize}
3803                 '     (not F.RDB$DEFAULT_VALUE is NULL)) '; {do not localize}
3804 +
3805 +  DefaultSQLODS12 = 'Select F.RDB$COMPUTED_BLR, ' + {do not localize}
3806 +               'F.RDB$DEFAULT_VALUE, R.RDB$FIELD_NAME, R.RDB$IDENTITY_TYPE ' + {do not localize}
3807 +               'from RDB$RELATION_FIELDS R, RDB$FIELDS F ' + {do not localize}
3808 +               'where R.RDB$RELATION_NAME = :RELATION ' +  {do not localize}
3809 +               'and R.RDB$FIELD_SOURCE = F.RDB$FIELD_NAME '+ {do not localize}
3810 +               'and ((not F.RDB$COMPUTED_BLR is NULL) or ' + {do not localize}
3811 +               '     (not F.RDB$DEFAULT_VALUE is NULL) or ' + {do not localize}
3812 +               '     ( not R.RDB$IDENTITY_TYPE is NULL))' ; {do not localize}
3813 +
3814   var
3815    FieldType: TFieldType;
3816    FieldSize: Word;
3817 +  FieldDataSize: integer;
3818 +  charSetID: short;
3819 +  CharSetSize: integer;
3820 +  CharSetName: RawByteString;
3821 +  FieldCodePage: TSystemCodePage;
3822    FieldNullable : Boolean;
3823    i, FieldPosition, FieldPrecision: Integer;
3824 <  FieldAliasName: string;
3825 <  RelationName, FieldName: string;
3824 >  FieldAliasName, DBAliasName: string;
3825 >  aRelationName, FieldName: string;
3826    Query : TIBSQL;
3827    FieldIndex: Integer;
3828    FRelationNodes : TRelationNode;
3829 +  aArrayDimensions: integer;
3830 +  aArrayBounds: TArrayBounds;
3831 +  ArrayMetaData: IArrayMetaData;
3832  
3833    function Add_Node(Relation, Field : String) : TRelationNode;
3834    var
# Line 2913 | Line 3851 | var
3851        FField.FieldName := Query.Fields[2].AsString;
3852        FField.DEFAULT_VALUE := not Query.Fields[1].IsNull;
3853        FField.COMPUTED_BLR := not Query.Fields[0].IsNull;
3854 +      FField.IDENTITY_COLUMN := (Query.FieldCount > 3) and not Query.Fields[3].IsNull;
3855        FField.NextField := Result.FieldNodes;
3856        Result.FieldNodes := FField;
3857        Query.Next;
# Line 2966 | Line 3905 | var
3905          FField := Ffield.NextField;
3906    end;
3907  
3908 +  function Is_IDENTITY_COLUMN(Relation, Field : String) : Boolean;
3909 +  var
3910 +    FRelation : TRelationNode;
3911 +    FField : TFieldNode;
3912 +  begin
3913 +    FRelation := FRelationNodes;
3914 +    while Assigned(FRelation) and
3915 +         (FRelation.RelationName <> Relation) do
3916 +      FRelation := FRelation.NextRelation;
3917 +    if not Assigned(FRelation) then
3918 +      FRelation := Add_Node(Relation, Field);
3919 +    Result := false;
3920 +    FField := FRelation.FieldNodes;
3921 +    while Assigned(FField) do
3922 +      if FField.FieldName = Field then
3923 +      begin
3924 +        Result := Ffield.IDENTITY_COLUMN;
3925 +        Exit;
3926 +      end
3927 +      else
3928 +        FField := Ffield.NextField;
3929 +  end;
3930 +
3931    Procedure FreeNodes;
3932    var
3933      FRelation : TRelationNode;
# Line 2986 | Line 3948 | var
3948    end;
3949  
3950   begin
2989  if not InternalPrepared then
2990  begin
2991    InternalPrepare;
2992    exit;
2993  end;
3951    FRelationNodes := TRelationNode.Create;
3952    FNeedsRefresh := False;
3953 <  Database.InternalTransaction.StartTransaction;
3953 >  if not Database.InternalTransaction.InTransaction then
3954 >    Database.InternalTransaction.StartTransaction;
3955    Query := TIBSQL.Create(self);
3956    try
3957      Query.Database := DataBase;
# Line 3001 | Line 3959 | begin
3959      FieldDefs.BeginUpdate;
3960      FieldDefs.Clear;
3961      FieldIndex := 0;
3962 <    if (Length(FMappedFieldPosition) < FQSelect.Current.Count) then
3963 <      SetLength(FMappedFieldPosition, FQSelect.Current.Count);
3964 <    Query.SQL.Text := DefaultSQL;
3962 >    if (Length(FMappedFieldPosition) < SourceQuery.MetaData.Count) then
3963 >      SetLength(FMappedFieldPosition, SourceQuery.MetaData.Count);
3964 >    if FDatabaseInfo.ODSMajorVersion >= 12 then
3965 >      Query.SQL.Text := DefaultSQLODS12
3966 >    else
3967 >      Query.SQL.Text := DefaultSQL;
3968      Query.Prepare;
3969 <    for i := 0 to FQSelect.Current.Count - 1 do
3970 <      with FQSelect.Current[i].Data^ do
3969 >    SetLength(FAliasNameMap, SourceQuery.MetaData.Count);
3970 >    SetLength(FAliasNameList, SourceQuery.MetaData.Count);
3971 >    for i := 0 to SourceQuery.MetaData.GetCount - 1 do
3972 >      with SourceQuery.MetaData[i] do
3973        begin
3974          { Get the field name }
3975 <        SetString(FieldAliasName, aliasname, aliasname_length);
3976 <        SetString(RelationName, relname, relname_length);
3977 <        SetString(FieldName, sqlname, sqlname_length);
3975 >        FieldAliasName := GetName;
3976 >        DBAliasName := GetAliasname;
3977 >        aRelationName := getRelationName;
3978 >        FieldName := getSQLName;
3979 >        FAliasNameList[i] := DBAliasName;
3980          FieldSize := 0;
3981 +        FieldDataSize := GetSize;
3982          FieldPrecision := 0;
3983 <        FieldNullable := FQSelect.Current[i].IsNullable;
3984 <        case sqltype and not 1 of
3983 >        FieldNullable := IsNullable;
3984 >        CharSetSize := 0;
3985 >        CharSetName := '';
3986 >        FieldCodePage := CP_NONE;
3987 >        aArrayDimensions := 0;
3988 >        SetLength(aArrayBounds,0);
3989 >        case SQLType of
3990            { All VARCHAR's must be converted to strings before recording
3991             their values }
3992            SQL_VARYING, SQL_TEXT:
3993            begin
3994 <            FieldSize := sqllen;
3994 >            if not Database.Attachment.CharSetWidth(getCharSetID,CharSetSize) then
3995 >              CharSetSize := 1;
3996 >            CharSetName := Database.Attachment.GetCharsetName(getCharSetID);
3997 >            Database.Attachment.CharSetID2CodePage(getCharSetID,FieldCodePage);
3998 >            FieldSize := FieldDataSize div CharSetSize;
3999              FieldType := ftString;
4000            end;
4001            { All Doubles/Floats should be cast to doubles }
# Line 3028 | Line 4003 | begin
4003              FieldType := ftFloat;
4004            SQL_SHORT:
4005            begin
4006 <            if (sqlscale = 0) then
4006 >            if (getScale = 0) then
4007                FieldType := ftSmallInt
4008              else begin
4009                FieldType := ftBCD;
4010                FieldPrecision := 4;
4011 <              FieldSize := -sqlscale;
4011 >              FieldSize := -getScale;
4012              end;
4013            end;
4014            SQL_LONG:
4015            begin
4016 <            if (sqlscale = 0) then
4016 >            if (getScale = 0) then
4017                FieldType := ftInteger
4018 <            else if (sqlscale >= (-4)) then
4018 >            else if (getScale >= (-4)) then
4019              begin
4020                FieldType := ftBCD;
4021                FieldPrecision := 9;
4022 <              FieldSize := -sqlscale;
4022 >              FieldSize := -getScale;
4023              end
4024              else
4025              if Database.SQLDialect = 1 then
# Line 3056 | Line 4031 | begin
4031              begin
4032                FieldType := ftFMTBCD;
4033                FieldPrecision := 9;
4034 <              FieldSize := -sqlscale;
4034 >              FieldSize := -getScale;
4035              end;
4036            end;
4037  
4038            SQL_INT64:
4039            begin
4040 <            if (sqlscale = 0) then
4040 >            if (getScale = 0) then
4041                FieldType := ftLargeInt
4042 <            else if (sqlscale >= (-4)) then
4042 >            else if (getScale >= (-4)) then
4043              begin
4044                FieldType := ftBCD;
4045                FieldPrecision := 18;
4046 <              FieldSize := -sqlscale;
4046 >              FieldSize := -getScale;
4047              end
4048              else
4049 <              FieldType := ftFloat
4049 >              FieldType := ftFloat;
4050            end;
4051            SQL_TIMESTAMP: FieldType := ftDateTime;
4052            SQL_TYPE_TIME: FieldType := ftTime;
# Line 3079 | Line 4054 | begin
4054            SQL_BLOB:
4055            begin
4056              FieldSize := sizeof (TISC_QUAD);
4057 <            if (sqlsubtype = 1) then
4058 <              FieldType := ftmemo
4057 >            if (getSubtype = 1) then
4058 >            begin
4059 >              if not Database.Attachment.CharSetWidth(getCharSetID,CharSetSize) then
4060 >                CharSetSize := 1;
4061 >              CharSetName := Database.Attachment.GetCharsetName(getCharSetID);
4062 >              Database.Attachment.CharSetID2CodePage(getCharSetID,FieldCodePage);
4063 >              FieldType := ftMemo;
4064 >            end
4065              else
4066                FieldType := ftBlob;
4067            end;
4068            SQL_ARRAY:
4069            begin
4070              FieldSize := sizeof (TISC_QUAD);
4071 <            FieldType := ftUnknown;
4071 >            FieldType := ftArray;
4072 >            ArrayMetaData := GetArrayMetaData;
4073 >            if ArrayMetaData <> nil then
4074 >            begin
4075 >              aArrayDimensions := ArrayMetaData.GetDimensions;
4076 >              aArrayBounds := ArrayMetaData.GetBounds;
4077 >            end;
4078            end;
4079 +          SQL_BOOLEAN:
4080 +             FieldType:= ftBoolean;
4081            else
4082              FieldType := ftUnknown;
4083          end;
# Line 3097 | Line 4086 | begin
4086          begin
4087            FMappedFieldPosition[FieldIndex] := FieldPosition;
4088            Inc(FieldIndex);
4089 <          with FieldDefs.AddFieldDef do
4089 >          with TIBFieldDef.Create(FieldDefs,'',FieldType,0,False,FieldDefs.Count+1) do
4090            begin
4091              Name := FieldAliasName;
4092 < (*           FieldNo := FieldPosition;*)
3104 <            DataType := FieldType;
4092 >            FAliasNameMap[FieldNo-1] := DBAliasName;
4093              Size := FieldSize;
4094 +            DataSize := FieldDataSize;
4095              Precision := FieldPrecision;
4096              Required := not FieldNullable;
4097 +            RelationName := aRelationName;
4098              InternalCalcField := False;
4099 +            CharacterSetSize := CharSetSize;
4100 +            CharacterSetName := CharSetName;
4101 +            CodePage := FieldCodePage;
4102 +            ArrayDimensions := aArrayDimensions;
4103 +            ArrayBounds := aArrayBounds;
4104              if (FieldName <> '') and (RelationName <> '') then
4105              begin
4106 +              IdentityColumn := Is_IDENTITY_COLUMN(RelationName, FieldName);
4107                if Has_COMPUTED_BLR(RelationName, FieldName) then
4108                begin
4109                  Attributes := [faReadOnly];
# Line 3133 | Line 4129 | begin
4129      FreeNodes;
4130      Database.InternalTransaction.Commit;
4131      FieldDefs.EndUpdate;
4132 +    FieldDefs.Updated := true;
4133    end;
4134   end;
4135  
# Line 3150 | Line 4147 | begin
4147    else begin
4148      Buffer := AllocRecordBuffer;
4149      try
4150 <      while FQSelect.Next <> nil do
4150 >      while FQSelect.Next do
4151        begin
4152          FetchCurrentRecordToBuffer(FQSelect, FRecordCount, Buffer);
4153          Inc(FRecordCount);
# Line 3165 | Line 4162 | end;
4162   procedure TIBCustomDataSet.InternalSetParamsFromCursor;
4163   var
4164    i: Integer;
4165 <  cur_param: TIBXSQLVAR;
4165 >  cur_param: ISQLParam;
4166    cur_field: TField;
4167    s: TStream;
4168   begin
# Line 3173 | Line 4170 | begin
4170      IBError(ibxeEmptyQuery, [nil]);
4171    if not FInternalPrepared then
4172      InternalPrepare;
4173 <  if (SQLParams.Count > 0) and (DataSource <> nil) and (DataSource.DataSet <> nil) then
4173 >  if (SQLParams.GetCount > 0) and (DataSource <> nil) and (DataSource.DataSet <> nil) then
4174    begin
4175 <    for i := 0 to SQLParams.Count - 1 do
4175 >    for i := 0 to SQLParams.GetCount - 1 do
4176      begin
4177        cur_field := DataSource.DataSet.FindField(SQLParams[i].Name);
4178 <      cur_param := SQLParams[i];
4179 <      if (cur_field <> nil) then begin
4178 >      if (cur_field <> nil) then
4179 >      begin
4180 >        cur_param := SQLParams[i];
4181          if (cur_field.IsNull) then
4182            cur_param.IsNull := True
4183 <        else case cur_field.DataType of
4183 >        else
4184 >        case cur_field.DataType of
4185            ftString:
4186              cur_param.AsString := cur_field.AsString;
4187 <          ftBoolean, ftSmallint, ftWord:
4187 >          ftBoolean:
4188 >            cur_param.AsBoolean := cur_field.AsBoolean;
4189 >          ftSmallint, ftWord:
4190              cur_param.AsShort := cur_field.AsInteger;
4191            ftInteger:
4192              cur_param.AsLong := cur_field.AsInteger;
4193            ftLargeInt:
4194 <            cur_param.AsInt64 := TLargeIntField(cur_field).AsLargeInt;
4194 >            cur_param.AsInt64 := cur_field.AsLargeInt;
4195            ftFloat, ftCurrency:
4196             cur_param.AsDouble := cur_field.AsFloat;
4197            ftBCD:
# Line 3207 | Line 4208 | begin
4208              try
4209                s := DataSource.DataSet.
4210                       CreateBlobStream(cur_field, bmRead);
4211 <              cur_param.LoadFromStream(s);
4211 >              cur_param.AsBlob := TIBDSBlobStream(s).FBlobStream.Blob;
4212              finally
4213                s.free;
4214              end;
4215            end;
4216 +          ftArray:
4217 +            cur_param.AsArray := TIBArrayField(cur_field).ArrayIntf;
4218            else
4219              IBError(ibxeNotSupported, [nil]);
4220          end;
# Line 3238 | Line 4241 | begin
4241   end;
4242  
4243   procedure TIBCustomDataSet.InternalOpen;
3241 var
3242  SetCursor: Boolean;
4244  
4245    function RecordDataLength(n: Integer): Long;
4246    begin
# Line 3247 | Line 4248 | var
4248    end;
4249  
4250   begin
4251 <  SetCursor := (GetCurrentThreadID = MainThreadID) and (Screen.Cursor = crDefault);
3251 <  if SetCursor then
3252 <    Screen.Cursor := crHourGlass;
4251 >  FBase.SetCursor;
4252    try
4253      ActivateConnection;
4254      ActivateTransaction;
# Line 3257 | Line 4256 | begin
4256        IBError(ibxeEmptyQuery, [nil]);
4257      if not FInternalPrepared then
4258        InternalPrepare;
4259 <   if FQSelect.SQLType = SQLSelect then
4259 >   if FQSelect.SQLStatementType = SQLSelect then
4260     begin
4261        if DefaultFields then
4262          CreateFields;
4263 +      FArrayFieldCount := 0;
4264        BindFields(True);
4265        FCurrentRecord := -1;
4266        FQSelect.ExecQuery;
# Line 3272 | Line 4272 | begin
4272          3. After the dummy fetch, FRecordSize will be appropriately
4273             adjusted to reflect the additional "weight" of the field
4274             data.
4275 <        4. Set up the FCalcFieldsOffset, FBlobCacheOffset and FRecordBufferSize.
4275 >        4. Set up the FCalcFieldsOffset, FBlobCacheOffset, FArrayCacheOffset and FRecordBufferSize.
4276          5. Now, with the BufferSize available, allocate memory for chunks of records
4277          6. Re-allocate the model buffer, accounting for the new
4278             FRecordBufferSize.
4279          7. Finally, calls to AllocRecordBuffer will work!.
4280         }
4281        {Step 1}
4282 <      FRecordSize := RecordDataLength(FQSelect.Current.Count);
4282 >      FRecordSize := RecordDataLength(FQSelect.FieldCount);
4283        {Step 2, 3}
4284 +      GetMem(FFieldColumns,sizeof(TFieldColumns) * (FQSelect.FieldCount));
4285        IBAlloc(FModelBuffer, 0, FRecordSize);
4286 <      FetchCurrentRecordToBuffer(FQSelect, -1, FModelBuffer);
4286 >      InitModelBuffer(FQSelect, FModelBuffer);
4287        {Step 4}
4288        FCalcFieldsOffset := FRecordSize;
4289        FBlobCacheOffset := FCalcFieldsOffset + CalcFieldsSize;
4290 <      FRecordBufferSize := (FBlobCacheOffset + (BlobFieldCount * SizeOf(TIBBlobStream)));
4290 >      FArrayCacheOffset := (FBlobCacheOffset + (BlobFieldCount * SizeOf(TIBBlobStream)));
4291 >      FRecordBufferSize := FArrayCacheOffset + (ArrayFieldCount * sizeof(IArray));
4292        {Step 5}
4293        if UniDirectional then
4294          FBufferChunkSize := FRecordBufferSize * UniCache
# Line 3302 | Line 4304 | begin
4304        FCacheSize := FBufferChunkSize;
4305        FOldCacheSize := FBufferChunkSize;
4306        {Step 6}
4307 <      IBAlloc(FModelBuffer, RecordDataLength(FQSelect.Current.Count),
4307 >      IBAlloc(FModelBuffer, RecordDataLength(FQSelect.FieldCount),
4308                               FRecordBufferSize);
4309        {Step 7}
4310        FOldBuffer := AllocRecordBuffer;
# Line 3310 | Line 4312 | begin
4312      else
4313        FQSelect.ExecQuery;
4314    finally
4315 <    if SetCursor and (Screen.Cursor = crHourGlass) then
3314 <      Screen.Cursor := crDefault;
4315 >    FBase.RestoreCursor;
4316    end;
4317   end;
4318  
# Line 3319 | Line 4320 | procedure TIBCustomDataSet.InternalPost;
4320   var
4321    Qry: TIBSQL;
4322    Buff: PChar;
3322  SetCursor: Boolean;
4323    bInserting: Boolean;
4324   begin
4325 <  SetCursor := (GetCurrentThreadID = MainThreadID) and (Screen.Cursor = crDefault);
3326 <  if SetCursor then
3327 <    Screen.Cursor := crHourGlass;
4325 >  FBase.SetCursor;
4326    try
4327      Buff := GetActiveBuf;
4328      CheckEditState;
# Line 3362 | Line 4360 | begin
4360      if bInserting then
4361        Inc(FRecordCount);
4362    finally
4363 <    if SetCursor and (Screen.Cursor = crHourGlass) then
3366 <      Screen.Cursor := crDefault;
4363 >    FBase.RestoreCursor;
4364    end;
4365   end;
4366  
# Line 3383 | Line 4380 | begin
4380    result := FOpen;
4381   end;
4382  
4383 + procedure TIBCustomDataSet.Loaded;
4384 + begin
4385 +  if assigned(FQSelect) then
4386 +    FBaseSQLSelect.assign(FQSelect.SQL);
4387 +  inherited Loaded;
4388 + end;
4389 +
4390 + procedure TIBCustomDataSet.Post;
4391 + var CancelPost: boolean;
4392 + begin
4393 +  CancelPost := false;
4394 +  if assigned(FOnValidatePost) then
4395 +    OnValidatePost(self,CancelPost);
4396 +  if CancelPost then
4397 +    Cancel
4398 +  else
4399 +   inherited Post;
4400 + end;
4401 +
4402   function TIBCustomDataSet.Locate(const KeyFields: string; const KeyValues: Variant;
4403                                   Options: TLocateOptions): Boolean;
4404   var
3389  {$IF FPC_FULLVERSION >  20602 }
4405    CurBookmark: TBookmark;
3391  {$ELSE}
3392  CurBookmark: string;
3393  {$ENDIF}
4406   begin
4407    DisableControls;
4408    try
# Line 3408 | Line 4420 | function TIBCustomDataSet.Lookup(const K
4420                                   const ResultFields: string): Variant;
4421   var
4422    fl: TList;
3411  {$IF FPC_FULLVERSION >  20602 }
4423    CurBookmark: TBookmark;
3413  {$ELSE}
3414  CurBookmark: string;
3415  {$ENDIF}
4424   begin
4425    DisableControls;
4426    fl := TList.Create;
# Line 3465 | Line 4473 | end;
4473   procedure TIBCustomDataSet.InternalSetFieldData(Field: TField; Buffer: Pointer);
4474   var
4475    Buff, TmpBuff: PChar;
4476 +  MappedFieldPos: integer;
4477   begin
4478    Buff := GetActiveBuf;
4479    if Field.FieldNo < 0 then
# Line 3481 | Line 4490 | begin
4490      begin
4491        { If inserting, Adjust record position }
4492        AdjustRecordOnInsert(Buff);
4493 <      if (FMappedFieldPosition[Field.FieldNo - 1] > 0) and
4494 <         (FMappedFieldPosition[Field.FieldNo - 1] <= rdFieldCount) then
4493 >      MappedFieldPos := FMappedFieldPosition[Field.FieldNo - 1];
4494 >      if (MappedFieldPos > 0) and
4495 >         (MappedFieldPos <= rdFieldCount) then
4496 >      with rdFields[MappedFieldPos], FFieldColumns^[MappedFieldPos] do
4497        begin
4498          Field.Validate(Buffer);
4499          if (Buffer = nil) or
4500             (Field is TIBStringField) and (PChar(Buffer)[0] = #0) then
4501 <          rdFields[FMappedFieldPosition[Field.FieldNo - 1]].fdIsNull := True
4502 <        else begin
4503 <          Move(Buffer^, Buff[rdFields[FMappedFieldPosition[Field.FieldNo - 1]].fdDataOfs],
4504 <                 rdFields[FMappedFieldPosition[Field.FieldNo - 1]].fdDataSize);
4505 <          if (rdFields[FMappedFieldPosition[Field.FieldNo - 1]].fdDataType = SQL_TEXT) or
4506 <             (rdFields[FMappedFieldPosition[Field.FieldNo - 1]].fdDataType = SQL_VARYING) then
4507 <            rdFields[FMappedFieldPosition[Field.FieldNo - 1]].fdDataLength := StrLen(PChar(Buffer));
3497 <          rdFields[FMappedFieldPosition[Field.FieldNo - 1]].fdIsNull := False;
4501 >          fdIsNull := True
4502 >        else
4503 >        begin
4504 >          Move(Buffer^, Buff[fdDataOfs],fdDataSize);
4505 >          if (fdDataType = SQL_TEXT) or (fdDataType = SQL_VARYING) then
4506 >            fdDataLength := StrLen(PChar(Buffer));
4507 >          fdIsNull := False;
4508            if rdUpdateStatus = usUnmodified then
4509            begin
4510              if CachedUpdates then
# Line 3582 | Line 4592 | begin
4592   FillChar(Buffer[FRecordSize], CalcFieldsSize, 0);
4593   end;
4594  
4595 + procedure TIBCustomDataSet.ClearIBLinks;
4596 + var i: integer;
4597 + begin
4598 +  for i := FIBLinks.Count - 1 downto 0 do
4599 +    TIBControlLink(FIBLinks[i]).IBDataSet := nil;
4600 + end;
4601 +
4602  
4603   procedure TIBCustomDataSet.InternalUnPrepare;
4604   begin
4605    if FInternalPrepared then
4606    begin
4607      CheckDatasetClosed;
4608 +    if FDidActivate then
4609 +      DeactivateTransaction;
4610      FieldDefs.Clear;
4611 +    FieldDefs.Updated := false;
4612      FInternalPrepared := False;
4613 +    Setlength(FAliasNameList,0);
4614    end;
4615   end;
4616  
4617   procedure TIBCustomDataSet.InternalExecQuery;
4618   var
4619    DidActivate: Boolean;
3599  SetCursor: Boolean;
4620   begin
4621    DidActivate := False;
4622 <  SetCursor := (GetCurrentThreadID = MainThreadID) and (Screen.Cursor = crDefault);
3603 <  if SetCursor then
3604 <    Screen.Cursor := crHourGlass;
4622 >  FBase.SetCursor;
4623    try
4624      ActivateConnection;
4625      DidActivate := ActivateTransaction;
# Line 3609 | Line 4627 | begin
4627        IBError(ibxeEmptyQuery, [nil]);
4628      if not FInternalPrepared then
4629        InternalPrepare;
4630 <    if FQSelect.SQLType = SQLSelect then
4630 >    if FQSelect.SQLStatementType = SQLSelect then
4631      begin
4632        IBError(ibxeIsASelectStatement, [nil]);
4633      end
# Line 3618 | Line 4636 | begin
4636    finally
4637      if DidActivate then
4638        DeactivateTransaction;
4639 <    if SetCursor and (Screen.Cursor = crHourGlass) then
3622 <      Screen.Cursor := crDefault;
4639 >    FBase.RestoreCursor;
4640    end;
4641   end;
4642  
4643 < function TIBCustomDataSet.GetSelectStmtHandle: TISC_STMT_HANDLE;
4643 > function TIBCustomDataSet.GetSelectStmtIntf: IStatement;
4644   begin
4645 <  Result := FQSelect.Handle;
4645 >  Result := FQSelect.Statement;
4646 > end;
4647 >
4648 > function TIBCustomDataSet.GetParser: TSelectSQLParser;
4649 > begin
4650 >  if not assigned(FParser) then
4651 >    FParser := CreateParser;
4652 >  Result := FParser
4653 > end;
4654 >
4655 > procedure TIBCustomDataSet.ResetParser;
4656 > begin
4657 >  if assigned(FParser) then
4658 >  begin
4659 >    FParser.Free;
4660 >    FParser := nil;
4661 >    FQSelect.OnSQLChanged := nil; {Do not react to change}
4662 >    try
4663 >      FQSelect.SQL.Assign(FBaseSQLSelect);
4664 >    finally
4665 >      FQSelect.OnSQLChanged := SQLChanged;
4666 >    end;
4667 >  end;
4668 > end;
4669 >
4670 > function TIBCustomDataSet.HasParser: boolean;
4671 > begin
4672 >  Result := not (csDesigning in ComponentState) and (FParser <> nil)
4673 > end;
4674 >
4675 > procedure TIBCustomDataSet.SetGenerateParamNames(AValue: Boolean);
4676 > begin
4677 >  if FGenerateParamNames = AValue then Exit;
4678 >  FGenerateParamNames := AValue;
4679 >  Disconnect
4680   end;
4681  
4682   procedure TIBCustomDataSet.InitRecord(Buffer: PChar);
# Line 3646 | Line 4697 | end;
4697  
4698   { TIBDataSet IProviderSupport }
4699  
4700 < (*procedure TIBCustomDataSet.PSEndTransaction(Commit: Boolean);
4700 > procedure TIBCustomDataSet.PSEndTransaction(Commit: Boolean);
4701   begin
4702    if Commit then
4703      Transaction.Commit else
# Line 3799 | Line 4850 | begin
4850    Transaction.StartTransaction;
4851   end;
4852  
4853 < function TIBCustomDataSet.PSGetTableName: string;
4853 > function TIBCustomDataSet.PsGetTableName: string;
4854   begin
4855   //  if not FInternalPrepared then
4856   //    InternalPrepare;
# Line 3809 | Line 4860 | begin
4860    if not FQSelect.Prepared then
4861      FQSelect.Prepare;
4862    Result := FQSelect.UniqueRelationName;
4863 < end;*)
4863 > end;
4864  
4865   procedure TIBDataSet.BatchInput(InputObject: TIBBatchInput);
4866   begin
# Line 3894 | Line 4945 | end;
4945   function TIBCustomDataSet.GetFieldData(Field: TField; Buffer: Pointer;
4946    NativeFormat: Boolean): Boolean;
4947   begin
4948 <  if (Field.DataType = ftBCD) and not NativeFormat then
4948 >  {These datatypes use IBX conventions and not TDataset conventions}
4949 >  if (Field.DataType in [ftBCD,ftDateTime,ftDate,ftTime]) and not NativeFormat then
4950      Result := InternalGetFieldData(Field, Buffer)
4951    else
4952      Result := inherited GetFieldData(Field, Buffer, NativeFormat);
# Line 3920 | Line 4972 | end;
4972   procedure TIBCustomDataSet.SetFieldData(Field: TField; Buffer: Pointer;
4973    NativeFormat: Boolean);
4974   begin
4975 <  if (not NativeFormat) and (Field.DataType = ftBCD) then
4975 >  {These datatypes use IBX conventions and not TDataset conventions}
4976 >  if (not NativeFormat) and (Field.DataType in [ftBCD,ftDateTime,ftDate,ftTime]) then
4977      InternalSetfieldData(Field, Buffer)
4978    else
4979      inherited SetFieldData(Field, buffer, NativeFormat);
# Line 3940 | Line 4993 | begin
4993    inherited Destroy;
4994   end;
4995  
4996 < procedure TIBDataSetUpdateObject.SetRefreshSQL(Value: TStrings);
4996 > procedure TIBDataSetUpdateObject.SetRefreshSQL(value: TStrings);
4997   begin
4998    FRefreshSQL.Assign(Value);
4999   end;
5000  
5001 + procedure TIBDataSetUpdateObject.InternalSetParams(Params: ISQLParams;
5002 +  buff: PChar);
5003 + begin
5004 +  if not Assigned(DataSet) then Exit;
5005 +  DataSet.SetInternalSQLParams(Params, buff);
5006 + end;
5007 +
5008   procedure TIBDataSetUpdateObject.InternalSetParams(Query: TIBSQL; buff: PChar);
5009   begin
5010 +  InternalSetParams(Query.Params,buff);
5011 + end;
5012 +
5013 + procedure TIBDataSetUpdateObject.UpdateRecordFromQuery(UpdateKind: TUpdateKind;
5014 +  QryResults: IResults; Buffer: PChar);
5015 + begin
5016    if not Assigned(DataSet) then Exit;
5017 <  DataSet.SetInternalSQLParams(Query, buff);
5017 >  case UpdateKind of
5018 >  ukModify, ukInsert:
5019 >    DataSet.UpdateRecordFromQuery(QryResults, Buffer);
5020 >  ukDelete:
5021 >    DataSet.DoDeleteReturning(QryResults);
5022 >  end;
5023 > end;
5024 >
5025 > function TIBDSBlobStream.GetSize: Int64;
5026 > begin
5027 >  Result := FBlobStream.BlobSize;
5028   end;
5029  
5030   { TIBDSBlobStream }
# Line 3959 | Line 5035 | begin
5035    FBlobStream := ABlobStream;
5036    FBlobStream.Seek(0, soFromBeginning);
5037    if (Mode = bmWrite) then
5038 +  begin
5039      FBlobStream.Truncate;
5040 +    TIBCustomDataSet(FField.DataSet).RecordModified(True);
5041 +    TBlobField(FField).Modified := true;
5042 +    FHasWritten := true;
5043 +  end;
5044 + end;
5045 +
5046 + destructor TIBDSBlobStream.Destroy;
5047 + begin
5048 +  if FHasWritten then
5049 +     TIBCustomDataSet(FField.DataSet).DataEvent(deFieldChange, PtrInt(FField));
5050 +  inherited Destroy;
5051   end;
5052  
5053   function TIBDSBlobStream.Read(var Buffer; Count: Longint): Longint;
# Line 3984 | Line 5072 | begin
5072    TIBCustomDataSet(FField.DataSet).RecordModified(True);
5073    TBlobField(FField).Modified := true;
5074    result := FBlobStream.Write(Buffer, Count);
5075 <  TIBCustomDataSet(FField.DataSet).DataEvent(deFieldChange, PtrInt(FField));
5075 >  FHasWritten := true;
5076 > {  TIBCustomDataSet(FField.DataSet).DataEvent(deFieldChange, PtrInt(FField));
5077 >  Removed as this caused a seek to beginning of the blob stream thus corrupting
5078 >  the blob stream. Moved to the destructor i.e. called after blob written}
5079   end;
5080  
5081   { TIBGenerator }
5082  
5083   procedure TIBGenerator.SetIncrement(const AValue: integer);
5084   begin
5085 +  if FIncrement = AValue then Exit;
5086    if AValue < 0 then
5087 <     raise Exception.Create('A Generator Increment cannot be negative');
5088 <  FIncrement := AValue
5087 >    IBError(ibxeNegativeGenerator,[]);
5088 >  FIncrement := AValue;
5089 >  SetQuerySQL;
5090   end;
5091  
5092 < function TIBGenerator.GetNextValue(ADatabase: TIBDatabase;
4000 <  ATransaction: TIBTransaction): integer;
5092 > procedure TIBGenerator.SetTransaction(AValue: TIBTransaction);
5093   begin
5094 <  with TIBSQL.Create(nil) do
5095 <  try
5096 <    Database := ADatabase;
5097 <    Transaction := ATransaction;
5098 <    if not assigned(Database) then
5099 <       IBError(ibxeCannotSetDatabase,[]);
5100 <    if not assigned(Transaction) then
5101 <       IBError(ibxeCannotSetTransaction,[]);
5102 <    with Transaction do
5103 <      if not InTransaction then StartTransaction;
5104 <    SQL.Text := Format('Select Gen_ID(%s,%d) as ID From RDB$Database',[FGeneratorName,Increment]);
5105 <    Prepare;
5094 >  FQuery.Transaction := AValue;
5095 > end;
5096 >
5097 > procedure TIBGenerator.SetQuerySQL;
5098 > begin
5099 >  FQuery.SQL.Text := Format('Select Gen_ID(%s,%d) From RDB$Database',[FGeneratorName,Increment]);
5100 > end;
5101 >
5102 > function TIBGenerator.GetDatabase: TIBDatabase;
5103 > begin
5104 >  Result := FQuery.Database;
5105 > end;
5106 >
5107 > function TIBGenerator.GetTransaction: TIBTransaction;
5108 > begin
5109 >  Result := FQuery.Transaction;
5110 > end;
5111 >
5112 > procedure TIBGenerator.SetDatabase(AValue: TIBDatabase);
5113 > begin
5114 >  FQuery.Database := AValue;
5115 > end;
5116 >
5117 > procedure TIBGenerator.SetGeneratorName(AValue: string);
5118 > begin
5119 >  if FGeneratorName = AValue then Exit;
5120 >  FGeneratorName := AValue;
5121 >  SetQuerySQL;
5122 > end;
5123 >
5124 > function TIBGenerator.GetNextValue: integer;
5125 > begin
5126 >  with FQuery do
5127 >  begin
5128 >    Transaction.Active := true;
5129      ExecQuery;
5130      try
5131 <      Result := FieldByName('ID').AsInteger
5131 >      Result := Fields[0].AsInteger
5132      finally
5133        Close
5134      end;
4020  finally
4021    Free
5135    end;
5136   end;
5137  
# Line 4026 | Line 5139 | constructor TIBGenerator.Create(Owner: T
5139   begin
5140    FOwner := Owner;
5141    FIncrement := 1;
5142 +  FQuery := TIBSQL.Create(nil);
5143 + end;
5144 +
5145 + destructor TIBGenerator.Destroy;
5146 + begin
5147 +  if assigned(FQuery) then FQuery.Free;
5148 +  inherited Destroy;
5149   end;
5150  
5151  
5152   procedure TIBGenerator.Apply;
5153   begin
5154 <  if (FGeneratorName <> '') and (FFieldName <> '')  then
5155 <    Owner.FieldByName(FFieldName).AsInteger := GetNextValue(Owner.Database,Owner.Transaction);
5154 >  if assigned(Database) and assigned(Transaction) and
5155 >       (FGeneratorName <> '') and (FFieldName <> '') and Owner.FieldByName(FFieldName).IsNull then
5156 >    Owner.FieldByName(FFieldName).AsInteger := GetNextValue;
5157   end;
5158  
5159 +
5160   end.

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