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Comparing ibx/trunk/runtime/IBTable.pas (file contents):
Revision 19 by tony, Mon Jul 7 13:00:15 2014 UTC vs.
Revision 39 by tony, Tue May 17 08:14:52 2016 UTC

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1	<	{************************************************************************}
2	<	{                                                                        }
3	<	{       Borland Delphi Visual Component Library                          }
4	<	{       InterBase Express core components                                }
5	<	{                                                                        }
6	<	{       Copyright (c) 1998-2000 Inprise Corporation                      }
7	<	{                                                                        }
8	<	{    InterBase Express is based in part on the product                   }
9	<	{    Free IB Components, written by Gregory H. Deatz for                 }
10	<	{    Hoagland, Longo, Moran, Dunst & Doukas Company.                     }
11	<	{    Free IB Components is used under license.                           }
12	<	{                                                                        }
13	<	{    The contents of this file are subject to the InterBase              }
14	<	{    Public License Version 1.0 (the "License"); you may not             }
15	<	{    use this file except in compliance with the License. You            }
16	<	{    may obtain a copy of the License at http://www.Inprise.com/IPL.html }
17	<	{    Software distributed under the License is distributed on            }
18	<	{    an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either              }
19	<	{    express or implied. See the License for the specific language       }
20	<	{    governing rights and limitations under the License.                 }
21	<	{    The Original Code was created by InterBase Software Corporation     }
22	<	{       and its successors.                                              }
23	<	{    Portions created by Inprise Corporation are Copyright (C) Inprise   }
24	<	{       Corporation. All Rights Reserved.                                }
25	<	{    Contributor(s): Jeff Overcash                                       }
26	<	{                                                                        }
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                                                 }
31	<	{                                                                        }
32	<	{************************************************************************}
33	<
34	<	unit IBTable;
35	<
36	<	{$Mode Delphi}
37	<
38	<	interface
39	<
40	<	uses SysUtils, Classes, DB, IB,  IBCustomDataSet,
41	<	IBHeader, IBSQL, IBUtils;
42	<
43	<	type
44	<
45	<	{ TIBTable }
46	<
47	<	TIBTableType = (ttSystem, ttView);
48	<	TIBTableTypes = set of TIBTableType;
49	<	TIndexName = String;
50	<
51	<	TIBTable = class;
52	<
53	<	TIBTable = class(TIBCustomDataSet)
54	<	private
55	<	FSystemTable: Boolean;
56	<	FMultiTableView: Boolean;
57	<	FMasterLink: TMasterDataLink;
58	<	FMasterFieldsList: TStringList;
59	<	FDetailFieldsList: TStringList;
60	<	FStoreDefs: Boolean;
61	<	FIndexDefs: TIndexDefs;
62	<	FDefaultIndex: Boolean;
63	<	FReadOnly: Boolean;
64	<	FFieldsIndex: Boolean;
65	<	FTableName: String;
66	<	FIndexName: TIndexName;
67	<	FRegenerateSQL: Boolean;
68	<	FNameList: TStrings;
69	<	FSwitchingIndex: Boolean;
70	<	FPrimaryIndexFields: string;
71	<	FTableTypes: TIBTableTypes;
72	<	WhereAllRefreshSQL: TStrings;
73	<	WhereDBKeyRefreshSQL: TStrings;
74	<	WherePrimaryRefreshSQL: TStrings;
75	<
76	<	function GetIndexFieldCount: Integer;
77	<	function GetIndexField(Index: Integer): TField;
78	<	procedure MasterChanged(Sender: TObject);
79	<	procedure MasterDisabled(Sender: TObject);
80	<	procedure SetDataSource(Value: TDataSource);
81	<	procedure SetIndexField(Index: Integer; Value: TField);
82	<	procedure SetIndexFieldNames(const Value: string);
83	<	procedure GenerateSQL;
84	<	procedure GenerateUpdateSQL;
85	<	procedure SwitchToIndex();
86	<	procedure InternalTableRefresh();
87	<	function GetTableNames: TStrings;
88	<	procedure GetTableNamesFromServer;
89	<	procedure SetTableTypes(
90	<	const Value: TIBTableTypes);
91	<	function InternalGotoDBKey(DBKey: TIBDBKey): Boolean;
92	<	function FormatFieldsList(Value: string): string;
93	<	function GetCurrentDBKey: TIBDBKey;
94	<	function InternalGetUpdatable: Boolean;
95	<	function GetExists: Boolean;
96	<	procedure SetIndexDefs(Value: TIndexDefs);
97	<	procedure ExtractLinkFields;
98	<	function FieldDefsStored: Boolean;
99	<	function IndexDefsStored: Boolean;
100	<	function GetMasterFields: string;
101	<	procedure SetMasterFields(const Value: string);
102	<	function GetIndexFieldNames: string;
103	<	function GetIndexName: string;
104	<	procedure SetIndexName(const Value: string);
105	<	procedure SetParams;
106	<	procedure SetReadOnly(Value: Boolean);
107	<	procedure SetTableName(Value: String);
108	<	procedure SetIndex(const Value: string; FieldsIndex: Boolean);
109	<	procedure ResetSQLStatements;
110	<	procedure Reopen;
111	<
112	<	protected
113	<
114	<	procedure DoOnNewRecord; override;
115	<	procedure GetIndexParams(const IndexName: string; FieldsIndex: Boolean;
116	<	var IndexedName: string);
117	<	function GetCanModify: Boolean; override;
118	<	procedure UpdateIndexDefs; override;
119	<	procedure DataEvent(Event: TDataEvent; Info: Ptrint); override;
120	<	procedure DefChanged(Sender: TObject); virtual;
121	<	function GetDataSource: TDataSource; override;
122	<	procedure InitFieldDefs; override;
123	<	procedure InternalClose; override;
124	<	procedure InternalOpen; override;
125	<	procedure InternalRefresh; override;
126	<	procedure SetFiltered(Value: Boolean); override;
127	<	procedure SetFilterText(const Value: string); override;
128	<	procedure SetFilterOptions(Value: TFilterOptions); override;
129	<	procedure InternalRefreshRow; override;
130	<
131	<	public
132	<	constructor Create(AOwner: TComponent); override;
133	<	destructor Destroy; override;
134	<	procedure AddIndex(const Name, Fields: string; Options: TIndexOptions;
135	<	const DescFields: string = '');
136	<	procedure CreateTable;
137	<	procedure DeleteIndex(const Name: string);
138	<	procedure DeleteTable;
139	<	procedure EmptyTable;
140	<	procedure GetDetailLinkFields(MasterFields, DetailFields: TList); virtual;
141	<	procedure GetIndexNames(List: TStrings);
142	<	procedure GotoCurrent(Table: TIBTable);
143	<	property CurrentDBKey: TIBDBKey read GetCurrentDBKey;
144	<	property Exists: Boolean read GetExists;
145	<	property IndexFieldCount: Integer read GetIndexFieldCount;
146	<	property IndexFields[Index: Integer]: TField read GetIndexField write SetIndexField;
147	<	property TableNames: TStrings read GetTableNames;
148	<
149	<	published
150	<	property Active;
151	<	property BufferChunks;
152	<	property CachedUpdates;
153	<	//    property Constraints stored ConstraintsStored;
154	<	property DefaultIndex: Boolean read FDefaultIndex write FDefaultIndex default True;
155	<	property FieldDefs stored FieldDefsStored;
156	<	property Filter;
157	<	property Filtered;
158	<	property IndexDefs: TIndexDefs read FIndexDefs write SetIndexDefs stored IndexDefsStored;
159	<	property IndexFieldNames: string read GetIndexFieldNames write SetIndexFieldNames;
160	<	property IndexName: string read GetIndexName write SetIndexName;
161	<	property MasterFields: string read GetMasterFields write SetMasterFields;
162	<	property MasterSource: TDataSource read GetDataSource write SetDataSource;
163	<	property ReadOnly: Boolean read FReadOnly write SetReadOnly default False;
164	<	property StoreDefs: Boolean read FStoreDefs write FStoreDefs default False;
165	<	property TableName: String read FTableName write SetTableName;
166	<	property TableTypes: TIBTableTypes read FTableTypes write SetTableTypes default [];
167	<	property UpdateObject;
168	<	property UniDirectional;
169	<
170	<	property BeforeDatabaseDisconnect;
171	<	property AfterDatabaseDisconnect;
172	<	property DatabaseFree;
173	<	property BeforeTransactionEnd;
174	<	property AfterTransactionEnd;
175	<	property TransactionFree;
176	<	property OnFilterRecord;
177	<	end;
178	<
179	<	implementation
180	<
181	<	{ TIBTable }
182	<
183	<	constructor TIBTable.Create(AOwner: TComponent);
184	<	begin
185	<	inherited Create(AOwner);
186	<	FNameList := TStringList.Create;
187	<	FSwitchingIndex := False;
188	<	FIndexDefs := TIndexDefs.Create(Self);
189	<	WhereAllRefreshSQL := TStringList.Create;
190	<	WhereDBKeyRefreshSQL := TStringList.Create;
191	<	WherePrimaryRefreshSQL := TStringList.Create;
192	<	FDefaultIndex := True;
193	<	FRegenerateSQL := True;
194	<	FMasterFieldsList := TStringList.Create;
195	<	FDetailFieldsList := TStringList.Create;
196	<	FMasterLink := TMasterDataLink.Create(Self);
197	<	FMasterLink.OnMasterChange := MasterChanged;
198	<	FMasterLink.OnMasterDisable := MasterDisabled;
199	<	QRefresh.OnSQLChanging := nil;
200	<	QDelete.OnSQLChanging := nil;
201	<	QInsert.OnSQLChanging := nil;
202	<	QModify.OnSQLChanging := nil;
203	<	end;
204	<
205	<	destructor TIBTable.Destroy;
206	<	begin
207	<	FNameList.Free;
208	<	FIndexDefs.Free;
209	<	FMasterFieldsList.Free;
210	<	FDetailFieldsList.Free;
211	<	FMasterLink.Free;
212	<	WhereAllRefreshSQL.Free;
213	<	WhereDBKeyRefreshSQL.Free;
214	<	WherePrimaryRefreshSQL.Free;
215	<	inherited Destroy;
216	<	end;
217	<
218	<	procedure TIBTable.InternalClose;
219	<	begin
220	<	DataEvent(dePropertyChange, 0);
221	<	inherited InternalClose;
222	<	end;
223	<
224	<	procedure TIBTable.InternalOpen;
225	<	begin
226	<	if FTableName = '' then IBError(ibxeNoTableName, [nil]);
227	<	ActivateConnection;
228	<	ActivateTransaction;
229	<	if FRegenerateSQL then
230	<	begin
231	<	InternalUnprepare;
232	<	GenerateSQL;
233	<	if not FReadOnly then
234	<	GenerateUpdateSQL;
235	<	FRegenerateSQL := False;
236	<	end;
237	<	{  writeln(SelectSQL.Text);
238	<	writeln(InsertSQL.Text);
239	<	writeln(DeleteSQL.Text);
240	<	writeln(ModifySQL.Text); }
241	<	SetParams;
242	<	inherited InternalOpen;
243	<	end;
244	<
245	<	procedure TIBTable.InternalRefresh;
246	<	var
247	<	DBKey: TIBDBKey;
248	<	begin
249	<	DBKey := CurrentDBKey;
250	<	Reopen;
251	<	if DBKey.DBKey[0] <> 0 then
252	<	InternalGotoDBKey(DBKey);
253	<	end;
254	<
255	<	procedure TIBTable.SetFiltered(Value: Boolean);
256	<	begin
257	<	if(Filtered <> Value) then
258	<	begin
259	<	inherited SetFiltered(value);
260	<	if Active then
261	<	InternalTableRefresh;
262	<	end
263	<	else
264	<	inherited SetFiltered(value);
265	<	end;
266	<
267	<	procedure TIBTable.SetFilterText(const Value: string);
268	<	begin
269	<	if Filtered and (Value <> Filter) then
270	<	begin
271	<	inherited SetFilterText(value);
272	<	InternalTableRefresh;
273	<	end
274	<	else
275	<	inherited SetFilterText(value);
276	<	end;
277	<
278	<	procedure TIBTable.SetFilterOptions(Value: TFilterOptions);
279	<	begin
280	<	if Value <> [] then
281	<	IBError(ibxeNotSupported, [nil]);
282	<	end;
283	<
284	<	procedure TIBTable.InternalRefreshRow;
285	<	begin
286	<	if CurrentDBKey.DBKey[0] <> 0 then
287	<	QRefresh.SQL.Assign(WhereDBKeyRefreshSQL)
288	<	else if WherePrimaryRefreshSQL.Text <> '' then
289	<	QRefresh.SQL.Assign(WherePrimaryRefreshSQL)
290	<	else
291	<	QRefresh.SQL.Assign(WhereAllRefreshSQL);
292	<	inherited InternalRefreshRow;
293	<	end;
294	<
295	<	procedure TIBTable.DefChanged(Sender: TObject);
296	<	begin
297	<	StoreDefs := True;
298	<	end;
299	<
300	<	procedure TIBTable.InitFieldDefs;
301	<	var
302	<	DidActivate: Boolean;
303	<	Query: TIBSQL;
304	<	begin
305	<	if FTableName = '' then IBError(ibxeNoTableName, [nil]);
306	<	if (InternalPrepared) then
307	<	InternalInitFieldDefs
308	<	else
309	<	begin
310	<	{Get the field defs from a simple query on the table}
311	<	ActivateConnection;
312	<	Query := TIBSQL.Create(self);
313	<	try
314	<	Query.Database := DataBase;
315	<	Query.Transaction := Database.InternalTransaction;
316	<	DidActivate := false;
317	<	Query.SQL.Text := 'Select * from ' + QuoteIdentifier(DataBase.SQLDialect, FTableName);
318	<	with Query.Transaction do
319	<	begin
320	<	if not InTransaction then
321	<	begin
322	<	StartTransaction;
323	<	DidActivate := true
324	<	end;
325	<	end;
326	<	Query.Prepare;
327	<	if DidActivate then
328	<	Query.Transaction.Rollback;
329	<	FieldDefsFromQuery(Query);
330	<	finally
331	<	Query.Free;
332	<	end;
333	<	end;
334	<	end;
335	<
336	<	{ Index / Ranges / Keys }
337	<
338	<	procedure TIBTable.AddIndex(const Name, Fields: string; Options: TIndexOptions;
339	<	const DescFields: string);
340	<	var
341	<	Query: TIBSQL;
342	<	FieldList: string;
343	<	begin
344	<	FieldDefs.Update;
345	<	if Active then begin
346	<	CheckBrowseMode;
347	<	CursorPosChanged;
348	<	end;
349	<	Query := TIBSQL.Create(self);
350	<	try
351	<	Query.Database := DataBase;
352	<	Query.Transaction := Transaction;
353	<	FieldList := FormatFieldsList(Fields);
354	<	if (ixPrimary in Options) then
355	<	begin
356	<	Query.SQL.Text := 'Alter Table ' + {do not localize}
357	<	QuoteIdentifier(Database.SQLDialect, FTableName) +
358	<	' Add CONSTRAINT ' +   {do not localize}
359	<	QuoteIdentifier(Database.SQLDialect, Name)
360	<	+ ' Primary Key (' + {do not localize}
361	<	FormatFieldsList(Fields) +
362	<	')';
363	<	end
364	<	else if ([ixUnique, ixDescending] * Options = [ixUnique, ixDescending]) then
365	<	Query.SQL.Text := 'Create unique Descending Index ' + {do not localize}
366	<	QuoteIdentifier(Database.SQLDialect, Name) +
367	<	' on ' + {do not localize}
368	<	QuoteIdentifier(Database.SQLDialect, FTableName) +
369	<	' (' + FieldList + ')'
370	<	else if (ixUnique in Options) then
371	<	Query.SQL.Text := 'Create unique Index ' + {do not localize}
372	<	QuoteIdentifier(Database.SQLDialect, Name) +
373	<	' on ' + {do not localize}
374	<	QuoteIdentifier(Database.SQLDialect, FTableName) +
375	<	' (' + FieldList + ')'
376	<	else if (ixDescending in Options) then
377	<	Query.SQL.Text := 'Create Descending Index ' + {do not localize}
378	<	QuoteIdentifier(Database.SQLDialect, Name) +
379	<	' on ' + {do not localize}
380	<	QuoteIdentifier(Database.SQLDialect, FTableName) +
381	<	' (' + FieldList + ')'
382	<	else
383	<	Query.SQL.Text := 'Create Index ' + {do not localize}
384	<	QuoteIdentifier(Database.SQLDialect, Name) +
385	<	' on ' + {do not localize}
386	<	QuoteIdentifier(Database.SQLDialect, FTableName) +
387	<	' (' + FieldList + ')';
388	<	Query.Prepare;
389	<	Query.ExecQuery;
390	<	IndexDefs.Updated := False;
391	<	finally
392	<	Query.free
393	<	end;
394	<	end;
395	<
396	<	procedure TIBTable.DeleteIndex(const Name: string);
397	<	var
398	<	Query: TIBSQL;
399	<
400	<	procedure DeleteByIndex;
401	<	begin
402	<	Query := TIBSQL.Create(self);
403	<	try
404	<	Query.Database := DataBase;
405	<	Query.Transaction := Transaction;
406	<	Query.SQL.Text := 'Drop index ' +  {do not localize}
407	<	QuoteIdentifier(Database.SQLDialect, Name);
408	<	Query.Prepare;
409	<	Query.ExecQuery;
410	<	IndexDefs.Updated := False;
411	<	finally
412	<	Query.Free;
413	<	end;
414	<	end;
415	<
416	<	function DeleteByConstraint: Boolean;
417	<	begin
418	<	Result := False;
419	<	Query := TIBSQL.Create(self);
420	<	try
421	<	Query.Database := DataBase;
422	<	Query.Transaction := Transaction;
423	<	Query.SQL.Text := 'Select ''foo'' from RDB$RELATION_CONSTRAINTS ' +
424	<	'where RDB$RELATION_NAME = ' +
425	<	'''' +
426	<	FormatIdentifierValue(Database.SQLDialect,
427	<	QuoteIdentifier(DataBase.SQLDialect, FTableName)) +
428	<	''' ' +
429	<	' AND RDB$CONSTRAINT_NAME = ' +
430	<	'''' +
431	<	FormatIdentifierValue(Database.SQLDialect,
432	<	QuoteIdentifier(DataBase.SQLDialect, Name)) +
433	<	''' ' +
434	<	'AND RDB$CONSTRAINT_TYPE = ''PRIMARY KEY''';
435	<	Query.Prepare;
436	<	Query.ExecQuery;
437	<	if not Query.EOF then
438	<	begin
439	<	Query.Close;
440	<	Query.SQL.Text := 'Alter Table ' +  {do not localize}
441	<	QuoteIdentifier(DataBase.SQLDialect, FTableName) +
442	<	' Drop Constraint ' +
443	<	QuoteIdentifier(DataBase.SQLDialect, Name);
444	<	Query.Prepare;
445	<	Query.ExecQuery;
446	<	IndexDefs.Updated := False;
447	<	Result := True;
448	<	end;
449	<	finally
450	<	Query.Free;
451	<	end;
452	<	end;
453	<
454	<	procedure DeleteByKey;
455	<	begin
456	<	Query := TIBSQL.Create(self);
457	<	try
458	<	Query.Database := DataBase;
459	<	Query.Transaction := Transaction;
460	<	Query.SQL.Text := 'Select RDB$CONSTRAINT_NAME from RDB$RELATION_CONSTRAINTS ' +
461	<	'where RDB$RELATION_NAME = ' +
462	<	'''' +
463	<	FormatIdentifierValue(Database.SQLDialect,
464	<	QuoteIdentifier(DataBase.SQLDialect, FTableName)) +
465	<	''' ' +
466	<	'AND RDB$INDEX_NAME = ' +
467	<	'''' +
468	<	FormatIdentifierValue(Database.SQLDialect,
469	<	QuoteIdentifier(DataBase.SQLDialect, Name)) +
470	<	''' ' +
471	<	'AND RDB$CONSTRAINT_TYPE = ''PRIMARY KEY''';
472	<	Query.Prepare;
473	<	Query.ExecQuery;
474	<	if not Query.EOF then
475	<	begin
476	<	Query.Close;
477	<	Query.SQL.Text := 'Alter Table ' +  {do not localize}
478	<	QuoteIdentifier(DataBase.SQLDialect, FTableName) +
479	<	' Drop Constraint ' +
480	<	QuoteIdentifier(DataBase.SQLDialect, Query.Current.ByName('RDB$CONSTRAINT_NAME').AsString);
481	<	Query.Prepare;
482	<	Query.ExecQuery;
483	<	IndexDefs.Updated := False;
484	<	end;
485	<	finally
486	<	Query.Free;
487	<	end;
488	<	end;
489	<
490	<	begin
491	<	if Active then
492	<	CheckBrowseMode;
493	<	IndexDefs.Update;
494	<	if (Pos('RDB$PRIMARY', Name) <> 0 ) then {do not localize} {mbcs ok}
495	<	DeleteByKey
496	<	else if not DeleteByConstraint then
497	<	DeleteByIndex;
498	<	end;
499	<
500	<	function TIBTable.GetIndexFieldNames: string;
501	<	begin
502	<	if FFieldsIndex then Result := FIndexName else Result := '';
503	<	end;
504	<
505	<	function TIBTable.GetIndexName: string;
506	<	begin
507	<	if FFieldsIndex then Result := '' else Result := FIndexName;
508	<	end;
509	<
510	<	procedure TIBTable.GetIndexNames(List: TStrings);
511	<	begin
512	<	IndexDefs.Update;
513	<	IndexDefs.GetItemNames(List);
514	<	end;
515	<
516	<	procedure TIBTable.GetIndexParams(const IndexName: string;
517	<	FieldsIndex: Boolean; var IndexedName: string);
518	<	var
519	<	IndexStr: TIndexName;
520	<	begin
521	<	if IndexName <> '' then
522	<	begin
523	<	IndexDefs.Update;
524	<	IndexStr := IndexName;
525	<	if FieldsIndex then
526	<	IndexStr := IndexDefs.FindIndexForFields(IndexName).Name;
527	<	end;
528	<	IndexedName := IndexStr;
529	<	end;
530	<
531	<	procedure TIBTable.SetIndexDefs(Value: TIndexDefs);
532	<	begin
533	<	IndexDefs.Assign(Value);
534	<	end;
535	<
536	<	procedure TIBTable.SetIndex(const Value: string; FieldsIndex: Boolean);
537	<	begin
538	<	if Active then CheckBrowseMode;
539	<	if (FIndexName <> Value) or (FFieldsIndex <> FieldsIndex) then
540	<	begin
541	<	FIndexName := Value;
542	<	FFieldsIndex := FieldsIndex;
543	<	if Active then
544	<	begin
545	<	SwitchToIndex;
546	<	end;
547	<	end;
548	<	end;
549	<
550	<	procedure TIBTable.SetIndexFieldNames(const Value: string);
551	<	begin
552	<	SetIndex(Value, Value <> '');
553	<	end;
554	<
555	<	procedure TIBTable.SetIndexName(const Value: string);
556	<	begin
557	<	SetIndex(Value, False);
558	<	end;
559	<
560	<	procedure TIBTable.UpdateIndexDefs;
561	<	var
562	<	Opts: TIndexOptions;
563	<	Flds: string;
564	<	Query, SubQuery: TIBSQL;
565	<	fn: string;
566	<	aField: TFieldDef;
567	<	begin
568	<	if not (csReading in ComponentState) then begin
569	<	if not Active and not FSwitchingIndex  then
570	<	FieldDefs.Update;
571	<	IndexDefs.Clear;
572	<	Database.InternalTransaction.StartTransaction;
573	<	Query := TIBSQL.Create(self);
574	<	try
575	<	FPrimaryIndexFields := '';
576	<	Query.GoToFirstRecordOnExecute := False;
577	<	Query.Database := DataBase;
578	<	Query.Transaction := Database.InternalTransaction;
579	<	Query.SQL.Text :=
580	<	'Select I.RDB$INDEX_NAME, I.RDB$UNIQUE_FLAG, I.RDB$INDEX_TYPE, ' + {do not localize}
581	<	'I.RDB$SEGMENT_COUNT, S.RDB$FIELD_NAME from RDB$INDICES I, ' + {do not localize}
582	<	'RDB$INDEX_SEGMENTS S where I.RDB$INDEX_NAME = S.RDB$INDEX_NAME '+ {do not localize}
583	<	'and I.RDB$RELATION_NAME = ' + '''' + {do not localize}
584	<	FormatIdentifierValue(Database.SQLDialect,
585	<	QuoteIdentifier(DataBase.SQLDialect, FTableName)) + '''';
586	<	Query.Prepare;
587	<	Query.ExecQuery;
588	<	while (not Query.EOF) and (Query.Next <> nil) do
589	<	begin
590	<	with IndexDefs.AddIndexDef do
591	<	begin
592	<	Name := TrimRight(Query.Current.ByName('RDB$INDEX_NAME').AsString); {do not localize}
593	<	Opts := [];
594	<	if Pos ('RDB$PRIMARY', Name) = 1 then Include(Opts, ixPrimary); {do not localize} {mbcs ok}
595	<	if Query.Current.ByName('RDB$UNIQUE_FLAG').AsInteger = 1 then Include(Opts, ixUnique); {do not localize}
596	<	if Query.Current.ByName('RDB$INDEX_TYPE').AsInteger = 2  then Include(Opts, ixDescending); {do not localize}
597	<	Options := Opts;
598	<	if (Query.Current.ByName('RDB$SEGMENT_COUNT').AsInteger = 1) then {do not localize}
599	<	begin
600	<	fn := Trim(Query.Current.ByName('RDB$FIELD_NAME').AsString); {do not localize}
601	<	aField := GetFieldDefFromAlias(fn);
602	<	if assigned(aField) then
603	<	Fields := aField.Name
604	<	else
605	<	Fields := fn;
606	<	end
607	<	else begin
608	<	SubQuery := TIBSQL.Create(self);
609	<	try
610	<	SubQuery.GoToFirstRecordOnExecute := False;
611	<	SubQuery.Database := DataBase;
612	<	SubQuery.Transaction := Database.InternalTransaction;
613	<	SubQuery.SQL.Text :=
614	<	'Select RDB$FIELD_NAME from RDB$INDEX_SEGMENTS where RDB$INDEX_NAME = ' + {do not localize}
615	<	'''' +
616	<	FormatIdentifierValue(Database.SQLDialect,
617	<	QuoteIdentifier(DataBase.SQLDialect, Name)) +
618	<	'''' + 'ORDER BY RDB$FIELD_POSITION'; {do not localize}
619	<	SubQuery.Prepare;
620	<	SubQuery.ExecQuery;
621	<	Flds := '';
622	<	while (not SubQuery.EOF) and (SubQuery.Next <> nil) do
623	<	begin
624	<	fn := TrimRight(SubQuery.Current.ByName('RDB$FIELD_NAME').AsString); {do not localize}
625	<	aField := GetFieldDefFromAlias(fn);
626	<	if assigned(aField) then
627	<	fn := aField.Name;
628	<	if (Flds = '') then
629	<	Flds := fn
630	<	else begin
631	<	Query.Next;
632	<	Flds := Flds + ';' + fn;
633	<	end;
634	<	end;
635	<	Fields := Flds;
636	<	finally
637	<	SubQuery.Free;
638	<	end;
639	<	end;
640	<	if (ixDescending in Opts) then
641	<	DescFields := Fields;
642	<	if ixPrimary in Opts then
643	<	FPrimaryIndexFields := Fields;
644	<	end;
645	<	end;
646	<	finally
647	<	Query.Free;
648	<	Database.InternalTransaction.Commit;
649	<	end;
650	<	end;
651	<	end;
652	<
653	<	function TIBTable.GetExists: Boolean;
654	<	var
655	<	Query: TIBSQL;
656	<	begin
657	<	Result := Active;
658	<	if Result or (TableName = '') then Exit;
659	<	Database.InternalTransaction.StartTransaction;
660	<	Query := TIBSQL.Create(self);
661	<	try
662	<	Query.Database := DataBase;
663	<	Query.Transaction := Database.InternalTransaction;
664	<	Query.SQL.Text :=
665	<	'Select USER from RDB$RELATIONS where RDB$RELATION_NAME = ' + {do not localize}
666	<	'''' +
667	<	FormatIdentifierValue(Database.SQLDialect,
668	<	QuoteIdentifier(DataBase.SQLDialect, FTableName)) + '''';
669	<	Query.Prepare;
670	<	Query.ExecQuery;
671	<	Result := not Query.EOF;
672	<	finally
673	<	Query.Free;
674	<	Database.InternalTransaction.Commit;
675	<	end;
676	<	end;
677	<
678	<	procedure TIBTable.GotoCurrent(Table: TIBTable);
679	<	begin
680	<	CheckBrowseMode;
681	<	Table.CheckBrowseMode;
682	<	if (Database <> Table.Database) or
683	<	(CompareText(TableName, Table.TableName) <> 0) then
684	<	IBError(ibxeTableNameMismatch, [nil]);
685	<	Table.UpdateCursorPos;
686	<	InternalGotoDBKey(Table.CurrentDBKey);
687	<	DoBeforeScroll;
688	<	Resync([rmExact, rmCenter]);
689	<	DoAfterScroll;
690	<	end;
691	<
692	<
693	<	procedure TIBTable.CreateTable;
694	<	var
695	<	FieldList: string;
696	<
697	<	procedure InitFieldsList;
698	<	var
699	<	I: Integer;
700	<	begin
701	<	InitFieldDefsFromFields;
702	<	for I := 0 to FieldDefs.Count - 1 do begin
703	<	if ( I > 0) then
704	<	FieldList := FieldList + ', ';
705	<	with FieldDefs[I] do
706	<	begin
707	<	case DataType of
708	<	ftString:
709	<	FieldList := FieldList +
710	<	QuoteIdentifier(DataBase.SQLDialect, Name) +
711	<	' VARCHAR(' + IntToStr(Size) + ')'; {do not localize}
712	<	ftFixedChar:
713	<	FieldList := FieldList +
714	<	QuoteIdentifier(DataBase.SQLDialect, Name) +
715	<	' CHAR(' + IntToStr(Size) + ')'; {do not localize}
716	<	ftBoolean, ftSmallint, ftWord:
717	<	FieldList := FieldList +
718	<	QuoteIdentifier(DataBase.SQLDialect, Name) +
719	<	' SMALLINT'; {do not localize}
720	<	ftInteger:
721	<	FieldList := FieldList +
722	<	QuoteIdentifier(DataBase.SQLDialect, Name) +
723	<	' INTEGER'; {do not localize}
724	<	ftFloat, ftCurrency:
725	<	FieldList := FieldList +
726	<	QuoteIdentifier(DataBase.SQLDialect, Name) +
727	<	' DOUBLE PRECISION'; {do not localize}
728	<	ftBCD: begin
729	<	if (Database.SQLDialect = 1) then begin
730	<	if (Precision > 9) then
731	<	IBError(ibxeFieldUnsupportedType,[nil]);
732	<	if (Precision <= 4) then
733	<	Precision := 9;
734	<	end;
735	<	if (Precision <= 4 ) then
736	<	FieldList := FieldList +
737	<	QuoteIdentifier(DataBase.SQLDialect, Name) +
738	<	' Numeric(18, 4)' {do not localize}
739	<	else
740	<	FieldList := FieldList +
741	<	QuoteIdentifier(DataBase.SQLDialect, Name) +
742	<	' Numeric(' + IntToStr(Precision) + ', 4)'; {do not localize}
743	<	end;
744	<	ftDate:
745	<	FieldList := FieldList +
746	<	QuoteIdentifier(DataBase.SQLDialect, Name) +
747	<	' DATE'; {do not localize}
748	<	ftTime:
749	<	FieldList := FieldList +
750	<	QuoteIdentifier(DataBase.SQLDialect, Name) +
751	<	' TIME'; {do not localize}
752	<	ftDateTime:
753	<	if (Database.SQLDialect = 1) then
754	<	FieldList := FieldList +
755	<	QuoteIdentifier(DataBase.SQLDialect, Name) +
756	<	' DATE' {do not localize}
757	<	else
758	<	FieldList := FieldList +
759	<	QuoteIdentifier(DataBase.SQLDialect, Name) +
760	<	' TIMESTAMP'; {do not localize}
761	<	ftLargeInt:
762	<	if (Database.SQLDialect = 1) then
763	<	IBError(ibxeFieldUnsupportedType,[nil])
764	<	else
765	<	FieldList := FieldList +
766	<	QuoteIdentifier(DataBase.SQLDialect, Name) +
767	<	' Numeric(18, 0)'; {do not localize}
768	<	ftBlob, ftMemo:
769	<	FieldList := FieldList +
770	<	QuoteIdentifier(DataBase.SQLDialect, Name) +
771	<	' BLOB SUB_TYPE 1'; {do not localize}
772	<	ftBytes, ftVarBytes, ftGraphic..ftTypedBinary:
773	<	FieldList := FieldList +
774	<	QuoteIdentifier(DataBase.SQLDialect, Name) +
775	<	' BLOB SUB_TYPE 0'; {do not localize}
776	<	ftUnknown, ftADT, ftArray, ftReference, ftDataSet,
777	<	ftCursor, ftWideString, ftAutoInc:
778	<	IBError(ibxeFieldUnsupportedType,[nil]);
779	<	else
780	<	IBError(ibxeFieldUnsupportedType,[nil]);
781	<	end;
782	<	if faRequired in Attributes then
783	<	FieldList := FieldList + ' NOT NULL'; {do not localize}
784	<	end;
785	<	end;
786	<	end;
787	<
788	<	procedure InternalCreateTable;
789	<	var
790	<	I: Integer;
791	<	Query: TIBSQL;
792	<	begin
793	<	if (FieldList = '') then
794	<	IBError(ibxeFieldUnsupportedType,[nil]);
795	<	Query := TIBSQL.Create(self);
796	<	try
797	<	Query.Database := Database;
798	<	Query.transaction := Transaction;
799	<	Query.SQL.Text := 'Create Table ' +
800	<	QuoteIdentifier(DataBase.SQLDialect, FTableName) +
801	<	' (' + FieldList; {do not localize}
802	<	for I := 0 to IndexDefs.Count - 1 do
803	<	with IndexDefs[I] do
804	<	if ixPrimary in Options then
805	<	begin
806	<	Query.SQL.Text := Query.SQL.Text + ', CONSTRAINT ' +
807	<	QuoteIdentifier(DataBase.SQLDialect, Name) +
808	<	' Primary Key (' +
809	<	FormatFieldsList(Fields) +
810	<	')';
811	<	end;
812	<	Query.SQL.Text := Query.SQL.Text + ')';
813	<	Query.Prepare;
814	<	Query.ExecQuery;
815	<	finally
816	<	Query.Free;
817	<	end;
818	<	end;
819	<
820	<	procedure InternalCreateIndex;
821	<	var
822	<	I: Integer;
823	<	begin
824	<	for I := 0 to IndexDefs.Count - 1 do
825	<	with IndexDefs[I] do
826	<	if not (ixPrimary in Options) then
827	<	AddIndex(Name, Fields, Options);
828	<	end;
829	<
830	<	begin
831	<	CheckInactive;
832	<	InitFieldsList;
833	<	InternalCreateTable;
834	<	InternalCreateIndex;
835	<	end;
836	<
837	<	procedure TIBTable.DeleteTable;
838	<	var
839	<	Query: TIBSQL;
840	<	begin
841	<	CheckInactive;
842	<	Query := TIBSQL.Create(self);
843	<	try
844	<	Query.Database := DataBase;
845	<	Query.Transaction := Transaction;
846	<	Query.SQL.Text := 'drop table ' +  {do not localize}
847	<	QuoteIdentifier(DataBase.SQLDialect, FTableName);
848	<	Query.Prepare;
849	<	Query.ExecQuery;
850	<	finally
851	<	Query.Free;
852	<	end;
853	<	end;
854	<
855	<	procedure TIBTable.EmptyTable;
856	<	var
857	<	Query: TIBSQL;
858	<	begin
859	<	if Active then
860	<	CheckBrowseMode;
861	<	Query := TIBSQL.Create(self);
862	<	try
863	<	Query.Database := DataBase;
864	<	Query.Transaction := Transaction;
865	<	Query.SQL.Text := 'delete from ' + {do not localize}
866	<	QuoteIdentifier(DataBase.SQLDialect, FTableName);
867	<	Query.Prepare;
868	<	Query.ExecQuery;
869	<	if Active then
870	<	begin
871	<	ClearBuffers;
872	<	DataEvent(deDataSetChange, 0);
873	<	end;
874	<	finally
875	<	Query.Free;
876	<	end;
877	<	end;
878	<
879	<	procedure TIBTable.DataEvent(Event: TDataEvent; Info: Ptrint);
880	<	begin
881	<	if Event = dePropertyChange then begin
882	<	IndexDefs.Updated := False;
883	<	FRegenerateSQL := True;
884	<	end;
885	<	inherited DataEvent(Event, Info);
886	<	end;
887	<
888	<	{ Informational & Property }
889	<
890	<	function TIBTable.GetCanModify: Boolean;
891	<	begin
892	<	Result := True;
893	<	if (FTableName = '') or FReadOnly
894	<	or FSystemTable or FMultiTableView then
895	<	Result := False;
896	<	end;
897	<
898	<	function TIBTable.InternalGetUpdatable: Boolean;
899	<	var
900	<	Query : TIBSQL;
901	<	begin
902	<	Database.InternalTransaction.StartTransaction;
903	<	Query := TIBSQL.Create(self);
904	<	try
905	<	Query.Database := DataBase;
906	<	Query.Transaction := Database.InternalTransaction;
907	<	Query.SQL.Text := 'Select RDB$SYSTEM_FLAG, RDB$DBKEY_LENGTH ' + {do not localize}
908	<	'from RDB$RELATIONS where RDB$RELATION_NAME = ' + {do not localize}
909	<	'''' +
910	<	FormatIdentifierValue(Database.SQLDialect,
911	<	QuoteIdentifier(DataBase.SQLDialect, FTableName)) + '''';
912	<	Query.Prepare;
913	<	Query.ExecQuery;
914	<	if (Query.Current[0].AsInteger <> 0) or
915	<	(Query.Current[1].AsInteger <> 8) then
916	<	Result := False
917	<	else
918	<	Result := True;
919	<	finally
920	<	Query.Free;
921	<	Database.InternalTransaction.Commit;
922	<	end;
923	<	end;
924	<
925	<	function TIBTable.FieldDefsStored: Boolean;
926	<	begin
927	<	Result := StoreDefs and (FieldDefs.Count > 0);
928	<	end;
929	<
930	<	function TIBTable.IndexDefsStored: Boolean;
931	<	begin
932	<	Result := StoreDefs and (IndexDefs.Count > 0);
933	<	end;
934	<
935	<	procedure TIBTable.SetParams;
936	<	var
937	<	i: Integer;
938	<	begin
939	<	if (MasterSource = nil) or (MasterSource.DataSet = nil) or
940	<	(not MasterSource.DataSet.Active) or (FMasterFieldsList.Count = 0) then
941	<	exit;
942	<	for i := 0 to FMasterFieldsList.Count - 1 do
943	<	QSelect.Params.ByName(FMasterFieldsList.Strings[i]).Value :=
944	<	MasterSource.DataSet.FieldByName(FMasterFieldsList.Strings[i]).Value;
945	<	end;
946	<
947	<	procedure TIBTable.MasterChanged(Sender: TObject);
948	<	begin
949	<	CheckBrowseMode;
950	<	SetParams;
951	<	ReQuery;
952	<	end;
953	<
954	<	procedure TIBTable.MasterDisabled(Sender: TObject);
955	<	begin
956	<	DataEvent(dePropertyChange, 0);
957	<	ReQuery;
958	<	end;
959	<
960	<	function TIBTable.GetDataSource: TDataSource;
961	<	begin
962	<	Result := FMasterLink.DataSource;
963	<	end;
964	<
965	<	procedure TIBTable.SetDataSource(Value: TDataSource);
966	<	begin
967	<	if IsLinkedTo(Value) then IBError(ibxeCircularDataLink, [Self]);
968	<	if FMasterLink.DataSource <> Value then
969	<	DataEvent(dePropertyChange, 0);
970	<	FMasterLink.DataSource := Value;
971	<	end;
972	<
973	<	function TIBTable.GetMasterFields: string;
974	<	begin
975	<	Result := FMasterLink.FieldNames;
976	<	end;
977	<
978	<	procedure TIBTable.SetMasterFields(const Value: string);
979	<	begin
980	<	if FMasterLink.FieldNames <> Value then
981	<	DataEvent(dePropertyChange, 0);
982	<	FMasterLink.FieldNames := Value;
983	<	end;
984	<
985	<	procedure TIBTable.DoOnNewRecord;
986	<	var
987	<	I: Integer;
988	<	begin
989	<	if FMasterLink.Active and (FMasterLink.Fields.Count > 0) then
990	<	for I := 0 to FMasterLink.Fields.Count - 1 do
991	<	IndexFields[I] := TField(FMasterLink.Fields[I]);
992	<	inherited DoOnNewRecord;
993	<	end;
994	<
995	<	function TIBTable.FormatFieldsList(Value: String): String;
996	<	var
997	<	FieldName: string;
998	<	i: Integer;
999	<	begin
1000	<	if Database.SQLDialect = 1 then begin
1001	<	Value := QuoteIdentifier(Database.SQLDialect, Value);
1002	<	Result := StringReplace (Value, ';', ', ', [rfReplaceAll]);
1003	<	end
1004	<	else begin
1005	<	i := 1;
1006	<	Result := '';
1007	<	while i <= Length(Value) do
1008	<	begin
1009	<	FieldName := ExtractFieldName(Value, i);
1010	<	if Result = '' then
1011	<	Result := QuoteIdentifier(Database.SQLDialect, FieldName)
1012	<	else
1013	<	Result := Result + ', ' + QuoteIdentifier(Database.SQLDialect, FieldName);
1014	<	end;
1015	<	end;
1016	<	end;
1017	<
1018	<	procedure TIBTable.ExtractLinkFields;
1019	<	var
1020	<	i: Integer;
1021	<	DetailFieldNames: String;
1022	<	begin
1023	<	FMasterFieldsList.Clear;
1024	<	FDetailFieldsList.Clear;
1025	<	i := 1;
1026	<	while i <= Length(MasterFields) do
1027	<	FMasterFieldsList.Add(ExtractFieldName(MasterFields, i));
1028	<	i := 1;
1029	<	if IndexFieldNames = '' then
1030	<	DetailFieldNames := FPrimaryIndexFields
1031	<	else
1032	<	DetailFieldNames := IndexFieldNames;
1033	<	while i <= Length(DetailFieldNames) do
1034	<	FDetailFieldsList.Add(ExtractFieldName(DetailFieldNames, i));
1035	<	end;
1036	<
1037	<	procedure TIBTable.GetDetailLinkFields(MasterFields, DetailFields: TList);
1038	<	var
1039	<	i: Integer;
1040	<	Idx: TIndexDef;
1041	<	begin
1042	<	MasterFields.Clear;
1043	<	DetailFields.Clear;
1044	<	if (MasterSource <> nil) and (MasterSource.DataSet <> nil) and
1045	<	(Self.MasterFields <> '') then
1046	<	begin
1047	<	Idx := nil;
1048	<	MasterSource.DataSet.GetFieldList(MasterFields, Self.MasterFields);
1049	<	UpdateIndexDefs;
1050	<	if IndexName <> '' then
1051	<	Idx := IndexDefs.Find(IndexName)
1052	<	else if IndexFieldNames <> '' then
1053	<	Idx := IndexDefs.GetIndexForFields(IndexFieldNames, False)
1054	<	else
1055	<	for i := 0 to IndexDefs.Count - 1 do
1056	<	if ixPrimary in IndexDefs[i].Options then
1057	<	begin
1058	<	Idx := IndexDefs[i];
1059	<	break;
1060	<	end;
1061	<	if Idx <> nil then
1062	<	GetFieldList(DetailFields, Idx.Fields);
1063	<	end;
1064	<	end;
1065	<
1066	<	procedure TIBTable.SetReadOnly(Value: Boolean);
1067	<	begin
1068	<	CheckInactive;
1069	<	FReadOnly := Value;
1070	<	end;
1071	<
1072	<	procedure TIBTable.SetTableName(Value: String);
1073	<	begin
1074	<	if not (csReading in ComponentState) then
1075	<	begin
1076	<	CheckInactive;
1077	<	if Value <> FTableName then
1078	<	begin
1079	<	ResetSQLStatements;
1080	<	FRegenerateSQL := True;
1081	<	FTableName := Value;
1082	<	IndexName := '';
1083	<	IndexFieldNames := '';
1084	<	FPrimaryIndexFields := '';
1085	<	DataEvent(dePropertyChange, 0);
1086	<	end;
1087	<	end
1088	<	else if Value <> FTableName then
1089	<	FTableName := Value;
1090	<	end;
1091	<
1092	<	function TIBTable.GetIndexField(Index: Integer): TField;
1093	<	var
1094	<	I, Count: Integer;
1095	<	FieldNames, FieldName: String;
1096	<	begin
1097	<	Result := nil;
1098	<	FieldName := '';
1099	<	FieldNames := IndexFieldNames;
1100	<	if FieldNames = '' then
1101	<	begin
1102	<	for I := 0 to IndexDefs.Count - 1 do
1103	<	if (IndexDefs[i].Name = FIndexName) then
1104	<	begin
1105	<	FieldNames := IndexDefs[i].Fields;
1106	<	break;
1107	<	end;
1108	<	end;
1109	<	for I := 0 to Index do
1110	<	begin
1111	<	Count := Pos(';', FieldNames); {mbcs OK}
1112	<	if Count = 0 then
1113	<	FieldName := FieldNames
1114	<	else begin
1115	<	FieldName := Copy(FieldNames, 0, Count - 1);
1116	<	System.Delete(FieldNames, 1, Count);
1117	<	end;
1118	<	end;
1119	<	if FieldName <> '' then
1120	<	Result := FieldByName(FieldName)
1121	<	else
1122	<	IBError(ibxeIndexFieldMissing, [nil]);
1123	<	end;
1124	<
1125	<
1126	<	procedure TIBTable.SetIndexField(Index: Integer; Value: TField);
1127	<	begin
1128	<	GetIndexField(Index).Assign(Value);
1129	<	end;
1130	<
1131	<	function TIBTable.GetIndexFieldCount: Integer;
1132	<	var
1133	<	I, Index: Integer;
1134	<	FieldNames: String;
1135	<	done: Boolean;
1136	<	begin
1137	<	FieldNames := IndexFieldNames;
1138	<	if FieldNames = '' then
1139	<	begin
1140	<	for I := 0 to IndexDefs.Count - 1 do
1141	<	if (IndexDefs[i].Name = FIndexName) then
1142	<	begin
1143	<	FieldNames := IndexDefs[i].Fields;
1144	<	break;
1145	<	end;
1146	<	end;
1147	<	if FieldNames = '' then
1148	<	Result := 0
1149	<	else
1150	<	begin
1151	<	done := False;
1152	<	Result := 1;
1153	<	while not done do
1154	<	begin
1155	<	Index := Pos(';', FieldNames); {mbcs ok}
1156	<	if Index <> 0 then
1157	<	begin
1158	<	System.Delete(FieldNames, 1, Index);
1159	<	Inc(Result);
1160	<	end else
1161	<	done := True;
1162	<	end;
1163	<	end;
1164	<	end;
1165	<
1166	<	function TIBTable.GetTableNames: TStrings;
1167	<	begin
1168	<	FNameList.clear;
1169	<	GetTableNamesFromServer;
1170	<	Result := FNameList;
1171	<	end;
1172	<
1173	<	procedure TIBTable.GetTableNamesFromServer;
1174	<	var
1175	<	Query : TIBSQL;
1176	<	begin
1177	<	if not (csReading in ComponentState) then begin
1178	<	ActivateConnection;
1179	<	Database.InternalTransaction.StartTransaction;
1180	<	Query := TIBSQL.Create(self);
1181	<	try
1182	<	Query.GoToFirstRecordOnExecute := False;
1183	<	Query.Database := DataBase;
1184	<	Query.Transaction := Database.InternalTransaction;
1185	<	if (TableTypes * [ttSystem, ttView] = [ttSystem, ttView]) then
1186	<	Query.SQL.Text := 'Select RDB$RELATION_NAME from RDB$RELATIONS' {do not localize}
1187	<	else if ttSystem in TableTypes then
1188	<	Query.SQL.Text := 'Select RDB$RELATION_NAME from RDB$RELATIONS' + {do not localize}
1189	<	' where RDB$VIEW_BLR is NULL' {do not localize}
1190	<	else if ttView in TableTypes then
1191	<	Query.SQL.Text := 'Select RDB$RELATION_NAME from RDB$RELATIONS' + {do not localize}
1192	<	' where RDB$SYSTEM_FLAG = 0' {do not localize}
1193	<	else
1194	<	Query.SQL.Text := 'Select RDB$RELATION_NAME from RDB$RELATIONS' + {do not localize}
1195	<	' where RDB$VIEW_BLR is NULL and RDB$SYSTEM_FLAG = 0'; {do not localize}
1196	<	Query.Prepare;
1197	<	Query.ExecQuery;
1198	<	while (not Query.EOF) and (Query.Next <> nil) do
1199	<	FNameList.Add (TrimRight(Query.Current[0].AsString));
1200	<	finally
1201	<	Query.Free;
1202	<	Database.InternalTransaction.Commit;
1203	<	end;
1204	<	end;
1205	<	end;
1206	<
1207	<	procedure TIBTable.SwitchToIndex();
1208	<	begin
1209	<	FSwitchingIndex := True;
1210	<	InternalTableRefresh;
1211	<	FSwitchingIndex := False;
1212	<	end;
1213	<
1214	<	procedure TIBTable.InternalTableRefresh();
1215	<	var
1216	<	DBKey: TIBDBKey;
1217	<	begin
1218	<	CheckActive;
1219	<	DBKey := CurrentDBKey;
1220	<	FRegenerateSQL := True;
1221	<	Reopen;
1222	<	if DBKey.DBKey[0] <> 0 then
1223	<	InternalGotoDBKey(DBKey);
1224	<	end;
1225	<
1226	<	procedure TIBTable.GenerateSQL;
1227	<	var
1228	<	i: Integer;
1229	<	SQL: TStrings;
1230	<	OrderByStr: string;
1231	<	bWhereClausePresent: Boolean;
1232	<	fn: string;
1233	<	aField: TFieldDef;
1234	<	begin
1235	<	bWhereClausePresent := False;
1236	<	Database.CheckActive;
1237	<	Transaction.CheckInTransaction;
1238	<	if IndexDefs.Updated = False then
1239	<	IndexDefs.Update;
1240	<	if IndexFieldNames <> '' then
1241	<	OrderByStr := FormatFieldsList(IndexFieldNames)
1242	<	else if IndexName <> '' then
1243	<	OrderByStr := FormatFieldsList(IndexDefs[IndexDefs.Indexof (IndexName)].Fields)
1244	<	else if FDefaultIndex and (FPrimaryIndexFields <> '') then
1245	<	OrderByStr := FormatFieldsList(FPrimaryIndexFields);
1246	<	SQL := TStringList.Create;
1247	<	SQL.Text := 'select ' + {do not localize}
1248	<	QuoteIdentifier(DataBase.SQLDialect, FTableName) + '.*, ' {do not localize}
1249	<	+ 'RDB$DB_KEY as IBX_INTERNAL_DBKEY from ' {do not localize}
1250	<	+ QuoteIdentifier(DataBase.SQLDialect, FTableName);
1251	<	if Filtered and (Filter <> '') then
1252	<	begin
1253	<	SQL.Text := SQL.Text + ' where ' + Filter; {do not localize}
1254	<	bWhereClausePresent := True;
1255	<	end;
1256	<	if (MasterSource <> nil) and (MasterSource.DataSet <> nil) and (MasterFields <> '') then
1257	<	begin
1258	<	if bWhereClausePresent then
1259	<	SQL.Text := SQL.Text + ' AND ' {do not localize}
1260	<	else
1261	<	SQL.Text := SQL.Text + ' WHERE '; {do not localize}
1262	<	ExtractLinkfields;
1263	<	if FDetailFieldsList.Count < FMasterFieldsList.Count then
1264	<	IBError(ibxeUnknownError, [nil]);
1265	<	for i := 0 to FMasterFieldsList.Count - 1 do
1266	<	begin
1267	<	if i > 0 then
1268	<	SQL.Text := SQL.Text + 'AND ';
1269	<	aField := FieldDefs.Find(FDetailFieldsList.Strings[i]);
1270	<	if assigned(aField) then
1271	<	fn := GetDBAliasName(aField.FieldNo)
1272	<	else
1273	<	fn := FDetailFieldsList.Strings[i]; {something wrong if we get here - but should word}
1274	<	SQL.Text := SQL.Text +
1275	<	QuoteIdentifier(DataBase.SQLDialect, fn) + ' = :' + FMasterFieldsList.Strings[i];
1276	<	end;
1277	<	end;
1278	<	if OrderByStr <> '' then
1279	<	SQL.Text := SQL.Text + ' order by ' + OrderByStr; {do not localize}
1280	<	SelectSQL.Assign(SQL);
1281	<	RefreshSQL.Text := 'select ' + {do not localize}
1282	<	QuoteIdentifier(DataBase.SQLDialect, FTableName) + '.*, ' {do not localize}
1283	<	+ 'RDB$DB_KEY as IBX_INTERNAL_DBKEY from ' {do not localize}
1284	<	+ QuoteIdentifier(DataBase.SQLDialect, FTableName) +
1285	<	' where RDB$DB_KEY = :IBX_INTERNAL_DBKEY'; {do not localize}
1286	<	WhereDBKeyRefreshSQL.Assign(RefreshSQL);
1287	<	InternalPrepare;
1288	<	SQL.Free;
1289	<	end;
1290	<
1291	<	procedure TIBTable.GenerateUpdateSQL;
1292	<	var
1293	<	InsertFieldList, InsertParamList, UpdateFieldList: string;
1294	<	WherePrimaryFieldList, WhereAllFieldList: string;
1295	<
1296	<	procedure GenerateFieldLists;
1297	<	var
1298	<	I: Integer;
1299	<	begin
1300	<	for I := 0 to FieldDefs.Count - 1 do begin
1301	<	with FieldDefs[I] do begin
1302	<	if not (InternalCalcField or (faReadOnly in Attributes) or
1303	<	(DataType = ftUnknown)) then
1304	<	begin
1305	<	if ( InsertFieldList <> '' ) then begin
1306	<	InsertFieldList := InsertFieldList + ', ';
1307	<	InsertParamList := InsertParamList + ', ';
1308	<	UpdateFieldList := UpdateFieldList + ', ';
1309	<	if (DataType <> ftBlob) and (DataType <>ftMemo) then
1310	<	WhereAllFieldList := WhereAllFieldList + ' AND ';
1311	<	end;
1312	<	InsertFieldList := InsertFieldList +
1313	<	QuoteIdentifier(DataBase.SQLDialect, GetDBAliasName(FieldNo));
1314	<	InsertParamList := InsertParamList + ':' +  Name;
1315	<	UpdateFieldList := UpdateFieldList +
1316	<	QuoteIdentifier(DataBase.SQLDialect, GetDBAliasName(FieldNo)) +
1317	<	' = :' + Name;
1318	<	if (DataType <> ftBlob) and (DataType <>ftMemo) then
1319	<	WhereAllFieldList := WhereAllFieldList +
1320	<	QuoteIdentifier(DataBase.SQLDialect, GetDBAliasName(FieldNo)) + ' = :' +  Name;
1321	<	end;
1322	<	end;
1323	<	end;
1324	<	end;
1325	<
1326	<	procedure GenerateWherePrimaryFieldList;
1327	<	var
1328	<	i: Integer;
1329	<	tmp, fn: String;
1330	<	aField: TFieldDef;
1331	<	begin
1332	<	i := 1;
1333	<	while i <= Length(FPrimaryIndexFields) do
1334	<	begin
1335	<	tmp := ExtractFieldName(FPrimaryIndexFields, i);
1336	<	aField := FieldDefs.Find(tmp);
1337	<	if assigned(aField) then
1338	<	fn := GetDBAliasName(aField.FieldNo)
1339	<	else
1340	<	fn := tmp; {something wrong if we get here - but will work in most cases}
1341	<	tmp :=
1342	<	QuoteIdentifier(DataBase.SQLDialect, fn) +  ' = :' +
1343	<	QuoteIdentifier(DataBase.SQLDialect, tmp);{do not localize}
1344	<	if WherePrimaryFieldList <> '' then
1345	<	WherePrimaryFieldList :=
1346	<	WherePrimaryFieldList + ' AND ' + tmp
1347	<	else
1348	<	WherePrimaryFieldList := tmp;
1349	<	end;
1350	<	end;
1351	<
1352	<	begin
1353	<	if InternalGetUpdatable = False  then
1354	<	FReadOnly := True
1355	<	else
1356	<	begin
1357	<	DeleteSQL.Text := 'delete from ' + {do not localize}
1358	<	QuoteIdentifier(DataBase.SQLDialect, FTableName) +
1359	<	' where RDB$DB_KEY = ' + ':IBX_INTERNAL_DBKEY'; {do not localize}
1360	<	GenerateFieldLists;
1361	<	InsertSQL.Text := 'insert into ' + {do not localize}
1362	<	QuoteIdentifier(DataBase.SQLDialect, FTableName) +
1363	<	' (' + InsertFieldList + {do not localize}
1364	<	') values (' + InsertParamList + ')'; {do not localize}
1365	<	ModifySQL.Text := 'update ' +
1366	<	QuoteIdentifier(DataBase.SQLDialect, FTableName) +
1367	<	' set ' + UpdateFieldList + {do not localize}
1368	<	' where RDB$DB_KEY = :IBX_INTERNAL_DBKEY'; {do not localize}
1369	<	WhereAllRefreshSQL.Text := 'select ' +  {do not localize}
1370	<	QuoteIdentifier(DataBase.SQLDialect, FTableName) + '.*, '
1371	<	+ 'RDB$DB_KEY as IBX_INTERNAL_DBKEY from ' {do not localize}
1372	<	+ QuoteIdentifier(DataBase.SQLDialect, FTableName) +
1373	<	' where ' + WhereAllFieldList; {do not localize}
1374	<	if FPrimaryIndexFields <> '' then
1375	<	begin
1376	<	GenerateWherePrimaryFieldList;
1377	<	WherePrimaryRefreshSQL.Text := 'select ' + {do not localize}
1378	<	QuoteIdentifier(DataBase.SQLDialect, FTableName) + '.*, ' {do not localize}
1379	<	+ 'RDB$DB_KEY as IBX_INTERNAL_DBKEY from ' {do not localize}
1380	<	+ QuoteIdentifier(DataBase.SQLDialect, FTableName) +
1381	<	' where ' + WherePrimaryFieldList; {do not localize}
1382	<	end;
1383	<	try
1384	<	InternalPrepare;
1385	<	except
1386	<	FReadonly := True;
1387	<	end;
1388	<	end;
1389	<	end;
1390	<
1391	<	procedure TIBTable.ResetSQLStatements;
1392	<	begin
1393	<	SelectSQL.Text := '';
1394	<	DeleteSQL.Text := '';
1395	<	InsertSQL.Text := '';
1396	<	ModifySQL.Text := '';
1397	<	RefreshSQL.Text := '';
1398	<	end;
1399	<
1400	<	procedure TIBTable.SetTableTypes(
1401	<	const Value: TIBTableTypes);
1402	<	begin
1403	<	FTableTypes := Value;
1404	<	end;
1405	<
1406	<	function TIBTable.InternalGotoDBKey(DBKey: TIBDBKey): Boolean;
1407	<
1408	<	function DBKeyCompare (DBKey1, DBKey2: TIBDBKey): Boolean;
1409	<	var
1410	<	I: Integer;
1411	<	begin
1412	<	for I := 0 to 7 do
1413	<	if (DBKey1.DBKey[i] <> DBKey2.DBKey[i]) then begin
1414	<	result := False;
1415	<	exit;
1416	<	end;
1417	<	result := True;
1418	<	end;
1419	<	begin
1420	<	CheckActive;
1421	<	DisableControls;
1422	<	try
1423	<	result := False;
1424	<	First;
1425	<	while ((not result) and (not EOF)) do begin
1426	<	if (DBKeyCompare (DBKey, PRecordData(GetActiveBuf)^.rdDBKey)) then
1427	<	result := True
1428	<	else
1429	<	Next;
1430	<	end;
1431	<	if not result then
1432	<	First
1433	<	else
1434	<	CursorPosChanged;
1435	<	finally
1436	<	EnableControls;
1437	<	end;
1438	<	end;
1439	<
1440	<	function TIBTable.GetCurrentDBKey: TIBDBKey;
1441	<	var
1442	<	Buf: pChar;
1443	<	begin
1444	<	CheckActive;
1445	<	buf := GetActiveBuf;
1446	<	if Buf <> nil then
1447	<	Result := PRecordData(Buf)^.rdDBKey
1448	<	else
1449	<	Result.DBKey[0] := 0;
1450	<	end;
1451	<
1452	<	procedure TIBTable.Reopen;
1453	<	begin
1454	<	DisableControls;
1455	<	try
1456	<	if Active then
1457	<	begin
1458	<	SetState(dsInactive);
1459	<	CloseCursor;
1460	<	OpenCursor(false);
1461	<	SetState(dsBrowse);
1462	<	end;
1463	<	finally
1464	<	EnableControls;
1465	<	end;
1466	<	end;
1467	<
1468	<	end.
1	>	{************************************************************************}
2	>	{                                                                        }
3	>	{       Borland Delphi Visual Component Library                          }
4	>	{       InterBase Express core components                                }
5	>	{                                                                        }
6	>	{       Copyright (c) 1998-2000 Inprise Corporation                      }
7	>	{                                                                        }
8	>	{    InterBase Express is based in part on the product                   }
9	>	{    Free IB Components, written by Gregory H. Deatz for                 }
10	>	{    Hoagland, Longo, Moran, Dunst & Doukas Company.                     }
11	>	{    Free IB Components is used under license.                           }
12	>	{                                                                        }
13	>	{    The contents of this file are subject to the InterBase              }
14	>	{    Public License Version 1.0 (the "License"); you may not             }
15	>	{    use this file except in compliance with the License. You            }
16	>	{    may obtain a copy of the License at http://www.Inprise.com/IPL.html }
17	>	{    Software distributed under the License is distributed on            }
18	>	{    an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either              }
19	>	{    express or implied. See the License for the specific language       }
20	>	{    governing rights and limitations under the License.                 }
21	>	{    The Original Code was created by InterBase Software Corporation     }
22	>	{       and its successors.                                              }
23	>	{    Portions created by Inprise Corporation are Copyright (C) Inprise   }
24	>	{       Corporation. All Rights Reserved.                                }
25	>	{    Contributor(s): Jeff Overcash                                       }
26	>	{                                                                        }
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                                                 }
31	>	{                                                                        }
32	>	{************************************************************************}
33	>
34	>	unit IBTable;
35	>
36	>	{$Mode Delphi}
37	>
38	>	{$IF FPC_FULLVERSION >= 20700 }
39	>	{$codepage UTF8}
40	>	{$ENDIF}
41	>
42	>	interface
43	>
44	>	uses SysUtils, Classes, DB, IB,  IBCustomDataSet,
45	>	IBSQL, IBUtils;
46	>
47	>	type
48	>
49	>	{ TIBTable }
50	>
51	>	TIBTableType = (ttSystem, ttView);
52	>	TIBTableTypes = set of TIBTableType;
53	>	TIndexName = String;
54	>
55	>	TIBTable = class;
56	>
57	>	TIBTable = class(TIBCustomDataSet)
58	>	private
59	>	FSystemTable: Boolean;
60	>	FMultiTableView: Boolean;
61	>	FMasterLink: TMasterDataLink;
62	>	FMasterFieldsList: TStringList;
63	>	FDetailFieldsList: TStringList;
64	>	FStoreDefs: Boolean;
65	>	FIndexDefs: TIndexDefs;
66	>	FDefaultIndex: Boolean;
67	>	FReadOnly: Boolean;
68	>	FFieldsIndex: Boolean;
69	>	FTableName: String;
70	>	FIndexName: TIndexName;
71	>	FRegenerateSQL: Boolean;
72	>	FNameList: TStrings;
73	>	FSwitchingIndex: Boolean;
74	>	FPrimaryIndexFields: string;
75	>	FTableTypes: TIBTableTypes;
76	>	WhereAllRefreshSQL: TStrings;
77	>	WhereDBKeyRefreshSQL: TStrings;
78	>	WherePrimaryRefreshSQL: TStrings;
79	>
80	>	function GetIndexFieldCount: Integer;
81	>	function GetIndexField(Index: Integer): TField;
82	>	procedure MasterChanged(Sender: TObject);
83	>	procedure MasterDisabled(Sender: TObject);
84	>	procedure SetDataSource(Value: TDataSource);
85	>	procedure SetIndexField(Index: Integer; Value: TField);
86	>	procedure SetIndexFieldNames(const Value: string);
87	>	procedure GenerateSQL;
88	>	procedure GenerateUpdateSQL;
89	>	procedure SwitchToIndex();
90	>	procedure InternalTableRefresh();
91	>	function GetTableNames: TStrings;
92	>	procedure GetTableNamesFromServer;
93	>	procedure SetTableTypes(
94	>	const Value: TIBTableTypes);
95	>	function InternalGotoDBKey(DBKey: TIBDBKey): Boolean;
96	>	function FormatFieldsList(Value: string): string;
97	>	function GetCurrentDBKey: TIBDBKey;
98	>	function InternalGetUpdatable: Boolean;
99	>	function GetExists: Boolean;
100	>	procedure SetIndexDefs(Value: TIndexDefs);
101	>	procedure ExtractLinkFields;
102	>	function FieldDefsStored: Boolean;
103	>	function IndexDefsStored: Boolean;
104	>	function GetMasterFields: string;
105	>	procedure SetMasterFields(const Value: string);
106	>	function GetIndexFieldNames: string;
107	>	function GetIndexName: string;
108	>	procedure SetIndexName(const Value: string);
109	>	procedure SetParams;
110	>	procedure SetReadOnly(Value: Boolean);
111	>	procedure SetTableName(Value: String);
112	>	procedure SetIndex(const Value: string; FieldsIndex: Boolean);
113	>	procedure ResetSQLStatements;
114	>	procedure Reopen;
115	>
116	>	protected
117	>
118	>	procedure DoOnNewRecord; override;
119	>	procedure GetIndexParams(const IndexName: string; FieldsIndex: Boolean;
120	>	var IndexedName: string);
121	>	function GetCanModify: Boolean; override;
122	>	procedure UpdateIndexDefs; override;
123	>	procedure DataEvent(Event: TDataEvent; Info: Ptrint); override;
124	>	procedure DefChanged(Sender: TObject); virtual;
125	>	function GetDataSource: TDataSource; override;
126	>	procedure InitFieldDefs; override;
127	>	procedure InternalClose; override;
128	>	procedure InternalOpen; override;
129	>	procedure InternalRefresh; override;
130	>	procedure SetFiltered(Value: Boolean); override;
131	>	procedure SetFilterText(const Value: string); override;
132	>	procedure SetFilterOptions(Value: TFilterOptions); override;
133	>	procedure InternalRefreshRow; override;
134	>
135	>	public
136	>	constructor Create(AOwner: TComponent); override;
137	>	destructor Destroy; override;
138	>	procedure AddIndex(const Name, Fields: string; Options: TIndexOptions;
139	>	const DescFields: string = '');
140	>	procedure CreateTable;
141	>	procedure DeleteIndex(const Name: string);
142	>	procedure DeleteTable;
143	>	procedure EmptyTable;
144	>	procedure GetDetailLinkFields(MasterFields, DetailFields: TList); virtual;
145	>	procedure GetIndexNames(List: TStrings);
146	>	procedure GotoCurrent(Table: TIBTable);
147	>	property CurrentDBKey: TIBDBKey read GetCurrentDBKey;
148	>	property Exists: Boolean read GetExists;
149	>	property IndexFieldCount: Integer read GetIndexFieldCount;
150	>	property IndexFields[Index: Integer]: TField read GetIndexField write SetIndexField;
151	>	property TableNames: TStrings read GetTableNames;
152	>
153	>	published
154	>	property AutoCommit;
155	>	property Active;
156	>	property BufferChunks;
157	>	property CachedUpdates;
158	>	property DataSetCloseAction;
159	>	//    property Constraints stored ConstraintsStored;
160	>	property DefaultIndex: Boolean read FDefaultIndex write FDefaultIndex default True;
161	>	property FieldDefs stored FieldDefsStored;
162	>	property Filter;
163	>	property Filtered;
164	>	property IndexDefs: TIndexDefs read FIndexDefs write SetIndexDefs stored IndexDefsStored;
165	>	property IndexFieldNames: string read GetIndexFieldNames write SetIndexFieldNames;
166	>	property IndexName: string read GetIndexName write SetIndexName;
167	>	property MasterFields: string read GetMasterFields write SetMasterFields;
168	>	property MasterSource: TDataSource read GetDataSource write SetDataSource;
169	>	property ReadOnly: Boolean read FReadOnly write SetReadOnly default False;
170	>	property StoreDefs: Boolean read FStoreDefs write FStoreDefs default False;
171	>	property TableName: String read FTableName write SetTableName;
172	>	property TableTypes: TIBTableTypes read FTableTypes write SetTableTypes default [];
173	>	property UpdateObject;
174	>	property UniDirectional;
175	>
176	>	property BeforeDatabaseDisconnect;
177	>	property AfterDatabaseDisconnect;
178	>	property DatabaseFree;
179	>	property BeforeTransactionEnd;
180	>	property AfterTransactionEnd;
181	>	property TransactionFree;
182	>	property OnFilterRecord;
183	>	end;
184	>
185	>	implementation
186	>
187	>	{ TIBTable }
188	>
189	>	constructor TIBTable.Create(AOwner: TComponent);
190	>	begin
191	>	inherited Create(AOwner);
192	>	FNameList := TStringList.Create;
193	>	FSwitchingIndex := False;
194	>	FIndexDefs := TIndexDefs.Create(Self);
195	>	WhereAllRefreshSQL := TStringList.Create;
196	>	WhereDBKeyRefreshSQL := TStringList.Create;
197	>	WherePrimaryRefreshSQL := TStringList.Create;
198	>	FDefaultIndex := True;
199	>	FRegenerateSQL := True;
200	>	FMasterFieldsList := TStringList.Create;
201	>	FDetailFieldsList := TStringList.Create;
202	>	FMasterLink := TMasterDataLink.Create(Self);
203	>	FMasterLink.OnMasterChange := MasterChanged;
204	>	FMasterLink.OnMasterDisable := MasterDisabled;
205	>	QRefresh.OnSQLChanging := nil;
206	>	QDelete.OnSQLChanging := nil;
207	>	QInsert.OnSQLChanging := nil;
208	>	QModify.OnSQLChanging := nil;
209	>	end;
210	>
211	>	destructor TIBTable.Destroy;
212	>	begin
213	>	FNameList.Free;
214	>	FIndexDefs.Free;
215	>	FMasterFieldsList.Free;
216	>	FDetailFieldsList.Free;
217	>	FMasterLink.Free;
218	>	WhereAllRefreshSQL.Free;
219	>	WhereDBKeyRefreshSQL.Free;
220	>	WherePrimaryRefreshSQL.Free;
221	>	inherited Destroy;
222	>	end;
223	>
224	>	procedure TIBTable.InternalClose;
225	>	begin
226	>	DataEvent(dePropertyChange, 0);
227	>	inherited InternalClose;
228	>	end;
229	>
230	>	procedure TIBTable.InternalOpen;
231	>	begin
232	>	if FTableName = '' then IBError(ibxeNoTableName, [nil]);
233	>	ActivateConnection;
234	>	ActivateTransaction;
235	>	if FRegenerateSQL then
236	>	begin
237	>	InternalUnprepare;
238	>	GenerateSQL;
239	>	if not FReadOnly then
240	>	GenerateUpdateSQL;
241	>	FRegenerateSQL := False;
242	>	end;
243	>	{  writeln(SelectSQL.Text);
244	>	writeln(InsertSQL.Text);
245	>	writeln(DeleteSQL.Text);
246	>	writeln(ModifySQL.Text); }
247	>	SetParams;
248	>	inherited InternalOpen;
249	>	end;
250	>
251	>	procedure TIBTable.InternalRefresh;
252	>	var
253	>	DBKey: TIBDBKey;
254	>	begin
255	>	DBKey := CurrentDBKey;
256	>	Reopen;
257	>	if DBKey.DBKey[0] <> 0 then
258	>	InternalGotoDBKey(DBKey);
259	>	end;
260	>
261	>	procedure TIBTable.SetFiltered(Value: Boolean);
262	>	begin
263	>	if(Filtered <> Value) then
264	>	begin
265	>	inherited SetFiltered(value);
266	>	if Active then
267	>	InternalTableRefresh;
268	>	end
269	>	else
270	>	inherited SetFiltered(value);
271	>	end;
272	>
273	>	procedure TIBTable.SetFilterText(const Value: string);
274	>	begin
275	>	if Filtered and (Value <> Filter) then
276	>	begin
277	>	inherited SetFilterText(value);
278	>	InternalTableRefresh;
279	>	end
280	>	else
281	>	inherited SetFilterText(value);
282	>	end;
283	>
284	>	procedure TIBTable.SetFilterOptions(Value: TFilterOptions);
285	>	begin
286	>	if Value <> [] then
287	>	IBError(ibxeNotSupported, [nil]);
288	>	end;
289	>
290	>	procedure TIBTable.InternalRefreshRow;
291	>	begin
292	>	if CurrentDBKey.DBKey[0] <> 0 then
293	>	QRefresh.SQL.Assign(WhereDBKeyRefreshSQL)
294	>	else if WherePrimaryRefreshSQL.Text <> '' then
295	>	QRefresh.SQL.Assign(WherePrimaryRefreshSQL)
296	>	else
297	>	QRefresh.SQL.Assign(WhereAllRefreshSQL);
298	>	inherited InternalRefreshRow;
299	>	end;
300	>
301	>	procedure TIBTable.DefChanged(Sender: TObject);
302	>	begin
303	>	StoreDefs := True;
304	>	end;
305	>
306	>	procedure TIBTable.InitFieldDefs;
307	>	var
308	>	DidActivate: Boolean;
309	>	Query: TIBSQL;
310	>	begin
311	>	if FTableName = '' then IBError(ibxeNoTableName, [nil]);
312	>	if (InternalPrepared) then
313	>	InternalInitFieldDefs
314	>	else
315	>	begin
316	>	{Get the field defs from a simple query on the table}
317	>	ActivateConnection;
318	>	Query := TIBSQL.Create(self);
319	>	try
320	>	Query.Database := DataBase;
321	>	Query.Transaction := Database.InternalTransaction;
322	>	DidActivate := false;
323	>	Query.SQL.Text := 'Select * from ' + QuoteIdentifier(DataBase.SQLDialect, FTableName);
324	>	with Query.Transaction do
325	>	begin
326	>	if not InTransaction then
327	>	begin
328	>	StartTransaction;
329	>	DidActivate := true
330	>	end;
331	>	end;
332	>	Query.Prepare;
333	>	if DidActivate then
334	>	Query.Transaction.Rollback;
335	>	FieldDefsFromQuery(Query);
336	>	finally
337	>	Query.Free;
338	>	end;
339	>	end;
340	>	end;
341	>
342	>	{ Index / Ranges / Keys }
343	>
344	>	procedure TIBTable.AddIndex(const Name, Fields: string; Options: TIndexOptions;
345	>	const DescFields: string);
346	>	var
347	>	Query: TIBSQL;
348	>	FieldList: string;
349	>	begin
350	>	FieldDefs.Update;
351	>	if Active then begin
352	>	CheckBrowseMode;
353	>	CursorPosChanged;
354	>	end;
355	>	Query := TIBSQL.Create(self);
356	>	try
357	>	Query.Database := DataBase;
358	>	Query.Transaction := Transaction;
359	>	FieldList := FormatFieldsList(Fields);
360	>	if (ixPrimary in Options) then
361	>	begin
362	>	Query.SQL.Text := 'Alter Table ' + {do not localize}
363	>	QuoteIdentifier(Database.SQLDialect, FTableName) +
364	>	' Add CONSTRAINT ' +   {do not localize}
365	>	QuoteIdentifier(Database.SQLDialect, Name)
366	>	+ ' Primary Key (' + {do not localize}
367	>	FormatFieldsList(Fields) +
368	>	')';
369	>	end
370	>	else if ([ixUnique, ixDescending] * Options = [ixUnique, ixDescending]) then
371	>	Query.SQL.Text := 'Create unique Descending Index ' + {do not localize}
372	>	QuoteIdentifier(Database.SQLDialect, Name) +
373	>	' on ' + {do not localize}
374	>	QuoteIdentifier(Database.SQLDialect, FTableName) +
375	>	' (' + FieldList + ')'
376	>	else if (ixUnique in Options) then
377	>	Query.SQL.Text := 'Create unique Index ' + {do not localize}
378	>	QuoteIdentifier(Database.SQLDialect, Name) +
379	>	' on ' + {do not localize}
380	>	QuoteIdentifier(Database.SQLDialect, FTableName) +
381	>	' (' + FieldList + ')'
382	>	else if (ixDescending in Options) then
383	>	Query.SQL.Text := 'Create Descending Index ' + {do not localize}
384	>	QuoteIdentifier(Database.SQLDialect, Name) +
385	>	' on ' + {do not localize}
386	>	QuoteIdentifier(Database.SQLDialect, FTableName) +
387	>	' (' + FieldList + ')'
388	>	else
389	>	Query.SQL.Text := 'Create Index ' + {do not localize}
390	>	QuoteIdentifier(Database.SQLDialect, Name) +
391	>	' on ' + {do not localize}
392	>	QuoteIdentifier(Database.SQLDialect, FTableName) +
393	>	' (' + FieldList + ')';
394	>	Query.Prepare;
395	>	Query.ExecQuery;
396	>	IndexDefs.Updated := False;
397	>	finally
398	>	Query.free
399	>	end;
400	>	end;
401	>
402	>	procedure TIBTable.DeleteIndex(const Name: string);
403	>	var
404	>	Query: TIBSQL;
405	>
406	>	procedure DeleteByIndex;
407	>	begin
408	>	Query := TIBSQL.Create(self);
409	>	try
410	>	Query.Database := DataBase;
411	>	Query.Transaction := Transaction;
412	>	Query.SQL.Text := 'Drop index ' +  {do not localize}
413	>	QuoteIdentifier(Database.SQLDialect, Name);
414	>	Query.Prepare;
415	>	Query.ExecQuery;
416	>	IndexDefs.Updated := False;
417	>	finally
418	>	Query.Free;
419	>	end;
420	>	end;
421	>
422	>	function DeleteByConstraint: Boolean;
423	>	begin
424	>	Result := False;
425	>	Query := TIBSQL.Create(self);
426	>	try
427	>	Query.Database := DataBase;
428	>	Query.Transaction := Transaction;
429	>	Query.SQL.Text := 'Select ''foo'' from RDB$RELATION_CONSTRAINTS ' +
430	>	'where RDB$RELATION_NAME = ' +
431	>	'''' +
432	>	FormatIdentifierValue(Database.SQLDialect,
433	>	QuoteIdentifier(DataBase.SQLDialect, FTableName)) +
434	>	''' ' +
435	>	' AND RDB$CONSTRAINT_NAME = ' +
436	>	'''' +
437	>	FormatIdentifierValue(Database.SQLDialect,
438	>	QuoteIdentifier(DataBase.SQLDialect, Name)) +
439	>	''' ' +
440	>	'AND RDB$CONSTRAINT_TYPE = ''PRIMARY KEY''';
441	>	Query.Prepare;
442	>	Query.ExecQuery;
443	>	if not Query.EOF then
444	>	begin
445	>	Query.Close;
446	>	Query.SQL.Text := 'Alter Table ' +  {do not localize}
447	>	QuoteIdentifier(DataBase.SQLDialect, FTableName) +
448	>	' Drop Constraint ' +
449	>	QuoteIdentifier(DataBase.SQLDialect, Name);
450	>	Query.Prepare;
451	>	Query.ExecQuery;
452	>	IndexDefs.Updated := False;
453	>	Result := True;
454	>	end;
455	>	finally
456	>	Query.Free;
457	>	end;
458	>	end;
459	>
460	>	procedure DeleteByKey;
461	>	begin
462	>	Query := TIBSQL.Create(self);
463	>	try
464	>	Query.Database := DataBase;
465	>	Query.Transaction := Transaction;
466	>	Query.SQL.Text := 'Select RDB$CONSTRAINT_NAME from RDB$RELATION_CONSTRAINTS ' +
467	>	'where RDB$RELATION_NAME = ' +
468	>	'''' +
469	>	FormatIdentifierValue(Database.SQLDialect,
470	>	QuoteIdentifier(DataBase.SQLDialect, FTableName)) +
471	>	''' ' +
472	>	'AND RDB$INDEX_NAME = ' +
473	>	'''' +
474	>	FormatIdentifierValue(Database.SQLDialect,
475	>	QuoteIdentifier(DataBase.SQLDialect, Name)) +
476	>	''' ' +
477	>	'AND RDB$CONSTRAINT_TYPE = ''PRIMARY KEY''';
478	>	Query.Prepare;
479	>	Query.ExecQuery;
480	>	if not Query.EOF then
481	>	begin
482	>	Query.Close;
483	>	Query.SQL.Text := 'Alter Table ' +  {do not localize}
484	>	QuoteIdentifier(DataBase.SQLDialect, FTableName) +
485	>	' Drop Constraint ' +
486	>	QuoteIdentifier(DataBase.SQLDialect, Query.Current.ByName('RDB$CONSTRAINT_NAME').AsString);
487	>	Query.Prepare;
488	>	Query.ExecQuery;
489	>	IndexDefs.Updated := False;
490	>	end;
491	>	finally
492	>	Query.Free;
493	>	end;
494	>	end;
495	>
496	>	begin
497	>	if Active then
498	>	CheckBrowseMode;
499	>	IndexDefs.Update;
500	>	if (Pos('RDB$PRIMARY', Name) <> 0 ) then {do not localize} {mbcs ok}
501	>	DeleteByKey
502	>	else if not DeleteByConstraint then
503	>	DeleteByIndex;
504	>	end;
505	>
506	>	function TIBTable.GetIndexFieldNames: string;
507	>	begin
508	>	if FFieldsIndex then Result := FIndexName else Result := '';
509	>	end;
510	>
511	>	function TIBTable.GetIndexName: string;
512	>	begin
513	>	if FFieldsIndex then Result := '' else Result := FIndexName;
514	>	end;
515	>
516	>	procedure TIBTable.GetIndexNames(List: TStrings);
517	>	begin
518	>	IndexDefs.Update;
519	>	IndexDefs.GetItemNames(List);
520	>	end;
521	>
522	>	procedure TIBTable.GetIndexParams(const IndexName: string;
523	>	FieldsIndex: Boolean; var IndexedName: string);
524	>	var
525	>	IndexStr: TIndexName;
526	>	begin
527	>	if IndexName <> '' then
528	>	begin
529	>	IndexDefs.Update;
530	>	IndexStr := IndexName;
531	>	if FieldsIndex then
532	>	IndexStr := IndexDefs.FindIndexForFields(IndexName).Name;
533	>	end;
534	>	IndexedName := IndexStr;
535	>	end;
536	>
537	>	procedure TIBTable.SetIndexDefs(Value: TIndexDefs);
538	>	begin
539	>	IndexDefs.Assign(Value);
540	>	end;
541	>
542	>	procedure TIBTable.SetIndex(const Value: string; FieldsIndex: Boolean);
543	>	begin
544	>	if Active then CheckBrowseMode;
545	>	if (FIndexName <> Value) or (FFieldsIndex <> FieldsIndex) then
546	>	begin
547	>	FIndexName := Value;
548	>	FFieldsIndex := FieldsIndex;
549	>	if Active then
550	>	begin
551	>	SwitchToIndex;
552	>	end;
553	>	end;
554	>	end;
555	>
556	>	procedure TIBTable.SetIndexFieldNames(const Value: string);
557	>	begin
558	>	SetIndex(Value, Value <> '');
559	>	end;
560	>
561	>	procedure TIBTable.SetIndexName(const Value: string);
562	>	begin
563	>	SetIndex(Value, False);
564	>	end;
565	>
566	>	procedure TIBTable.UpdateIndexDefs;
567	>	var
568	>	Opts: TIndexOptions;
569	>	Flds: string;
570	>	Query, SubQuery: TIBSQL;
571	>	fn: string;
572	>	aField: TFieldDef;
573	>	begin
574	>	if not (csReading in ComponentState) then begin
575	>	if not Active and not FSwitchingIndex  then
576	>	FieldDefs.Update;
577	>	IndexDefs.Clear;
578	>	Database.InternalTransaction.StartTransaction;
579	>	Query := TIBSQL.Create(self);
580	>	try
581	>	FPrimaryIndexFields := '';
582	>	Query.GoToFirstRecordOnExecute := False;
583	>	Query.Database := DataBase;
584	>	Query.Transaction := Database.InternalTransaction;
585	>	Query.SQL.Text :=
586	>	'Select I.RDB$INDEX_NAME, I.RDB$UNIQUE_FLAG, I.RDB$INDEX_TYPE, ' + {do not localize}
587	>	'I.RDB$SEGMENT_COUNT, S.RDB$FIELD_NAME from RDB$INDICES I, ' + {do not localize}
588	>	'RDB$INDEX_SEGMENTS S where I.RDB$INDEX_NAME = S.RDB$INDEX_NAME '+ {do not localize}
589	>	'and I.RDB$RELATION_NAME = ' + '''' + {do not localize}
590	>	FormatIdentifierValue(Database.SQLDialect,
591	>	QuoteIdentifier(DataBase.SQLDialect, FTableName)) + '''';
592	>	Query.Prepare;
593	>	Query.ExecQuery;
594	>	while (not Query.EOF) and (Query.Next <> nil) do
595	>	begin
596	>	with IndexDefs.AddIndexDef do
597	>	begin
598	>	Name := TrimRight(Query.Current.ByName('RDB$INDEX_NAME').AsString); {do not localize}
599	>	Opts := [];
600	>	if Pos ('RDB$PRIMARY', Name) = 1 then Include(Opts, ixPrimary); {do not localize} {mbcs ok}
601	>	if Query.Current.ByName('RDB$UNIQUE_FLAG').AsInteger = 1 then Include(Opts, ixUnique); {do not localize}
602	>	if Query.Current.ByName('RDB$INDEX_TYPE').AsInteger = 2  then Include(Opts, ixDescending); {do not localize}
603	>	Options := Opts;
604	>	if (Query.Current.ByName('RDB$SEGMENT_COUNT').AsInteger = 1) then {do not localize}
605	>	begin
606	>	fn := Trim(Query.Current.ByName('RDB$FIELD_NAME').AsString); {do not localize}
607	>	aField := GetFieldDefFromAlias(fn);
608	>	if assigned(aField) then
609	>	Fields := aField.Name
610	>	else
611	>	Fields := fn;
612	>	end
613	>	else begin
614	>	SubQuery := TIBSQL.Create(self);
615	>	try
616	>	SubQuery.GoToFirstRecordOnExecute := False;
617	>	SubQuery.Database := DataBase;
618	>	SubQuery.Transaction := Database.InternalTransaction;
619	>	SubQuery.SQL.Text :=
620	>	'Select RDB$FIELD_NAME from RDB$INDEX_SEGMENTS where RDB$INDEX_NAME = ' + {do not localize}
621	>	'''' +
622	>	FormatIdentifierValue(Database.SQLDialect,
623	>	QuoteIdentifier(DataBase.SQLDialect, Name)) +
624	>	'''' + 'ORDER BY RDB$FIELD_POSITION'; {do not localize}
625	>	SubQuery.Prepare;
626	>	SubQuery.ExecQuery;
627	>	Flds := '';
628	>	while (not SubQuery.EOF) and (SubQuery.Next <> nil) do
629	>	begin
630	>	fn := TrimRight(SubQuery.Current.ByName('RDB$FIELD_NAME').AsString); {do not localize}
631	>	aField := GetFieldDefFromAlias(fn);
632	>	if assigned(aField) then
633	>	fn := aField.Name;
634	>	if (Flds = '') then
635	>	Flds := fn
636	>	else begin
637	>	Query.Next;
638	>	Flds := Flds + ';' + fn;
639	>	end;
640	>	end;
641	>	Fields := Flds;
642	>	finally
643	>	SubQuery.Free;
644	>	end;
645	>	end;
646	>	if (ixDescending in Opts) then
647	>	DescFields := Fields;
648	>	if ixPrimary in Opts then
649	>	FPrimaryIndexFields := Fields;
650	>	end;
651	>	end;
652	>	finally
653	>	Query.Free;
654	>	Database.InternalTransaction.Commit;
655	>	end;
656	>	end;
657	>	end;
658	>
659	>	function TIBTable.GetExists: Boolean;
660	>	var
661	>	Query: TIBSQL;
662	>	begin
663	>	Result := Active;
664	>	if Result or (TableName = '') then Exit;
665	>	Database.InternalTransaction.StartTransaction;
666	>	Query := TIBSQL.Create(self);
667	>	try
668	>	Query.Database := DataBase;
669	>	Query.Transaction := Database.InternalTransaction;
670	>	Query.SQL.Text :=
671	>	'Select USER from RDB$RELATIONS where RDB$RELATION_NAME = ' + {do not localize}
672	>	'''' +
673	>	FormatIdentifierValue(Database.SQLDialect,
674	>	QuoteIdentifier(DataBase.SQLDialect, FTableName)) + '''';
675	>	Query.Prepare;
676	>	Query.ExecQuery;
677	>	Result := not Query.EOF;
678	>	finally
679	>	Query.Free;
680	>	Database.InternalTransaction.Commit;
681	>	end;
682	>	end;
683	>
684	>	procedure TIBTable.GotoCurrent(Table: TIBTable);
685	>	begin
686	>	CheckBrowseMode;
687	>	Table.CheckBrowseMode;
688	>	if (Database <> Table.Database) or
689	>	(CompareText(TableName, Table.TableName) <> 0) then
690	>	IBError(ibxeTableNameMismatch, [nil]);
691	>	Table.UpdateCursorPos;
692	>	InternalGotoDBKey(Table.CurrentDBKey);
693	>	DoBeforeScroll;
694	>	Resync([rmExact, rmCenter]);
695	>	DoAfterScroll;
696	>	end;
697	>
698	>
699	>	procedure TIBTable.CreateTable;
700	>	var
701	>	FieldList: string;
702	>
703	>	procedure InitFieldsList;
704	>	var
705	>	I: Integer;
706	>	begin
707	>	InitFieldDefsFromFields;
708	>	for I := 0 to FieldDefs.Count - 1 do begin
709	>	if ( I > 0) then
710	>	FieldList := FieldList + ', ';
711	>	with FieldDefs[I] do
712	>	begin
713	>	case DataType of
714	>	ftString:
715	>	FieldList := FieldList +
716	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
717	>	' VARCHAR(' + IntToStr(Size) + ')'; {do not localize}
718	>	ftFixedChar:
719	>	FieldList := FieldList +
720	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
721	>	' CHAR(' + IntToStr(Size) + ')'; {do not localize}
722	>	ftBoolean:
723	>	FieldList := FieldList +
724	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
725	>	' BOOLEAN'; {do not localize}
726	>	ftSmallint, ftWord:
727	>	FieldList := FieldList +
728	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
729	>	' SMALLINT'; {do not localize}
730	>	ftInteger:
731	>	FieldList := FieldList +
732	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
733	>	' INTEGER'; {do not localize}
734	>	ftFloat, ftCurrency:
735	>	FieldList := FieldList +
736	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
737	>	' DOUBLE PRECISION'; {do not localize}
738	>	ftBCD: begin
739	>	if (Database.SQLDialect = 1) then begin
740	>	if (Precision > 9) then
741	>	IBError(ibxeFieldUnsupportedType,[nil]);
742	>	if (Precision <= 4) then
743	>	Precision := 9;
744	>	end;
745	>	if (Precision <= 4 ) then
746	>	FieldList := FieldList +
747	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
748	>	' Numeric(18, 4)' {do not localize}
749	>	else
750	>	FieldList := FieldList +
751	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
752	>	' Numeric(' + IntToStr(Precision) + ', 4)'; {do not localize}
753	>	end;
754	>	ftDate:
755	>	FieldList := FieldList +
756	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
757	>	' DATE'; {do not localize}
758	>	ftTime:
759	>	FieldList := FieldList +
760	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
761	>	' TIME'; {do not localize}
762	>	ftDateTime:
763	>	if (Database.SQLDialect = 1) then
764	>	FieldList := FieldList +
765	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
766	>	' DATE' {do not localize}
767	>	else
768	>	FieldList := FieldList +
769	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
770	>	' TIMESTAMP'; {do not localize}
771	>	ftLargeInt:
772	>	if (Database.SQLDialect = 1) then
773	>	IBError(ibxeFieldUnsupportedType,[nil])
774	>	else
775	>	FieldList := FieldList +
776	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
777	>	' Numeric(18, 0)'; {do not localize}
778	>	ftBlob, ftMemo:
779	>	FieldList := FieldList +
780	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
781	>	' BLOB SUB_TYPE 1'; {do not localize}
782	>	ftBytes, ftVarBytes, ftGraphic..ftTypedBinary:
783	>	FieldList := FieldList +
784	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
785	>	' BLOB SUB_TYPE 0'; {do not localize}
786	>	ftUnknown, ftADT, ftArray, ftReference, ftDataSet,
787	>	ftCursor, ftWideString, ftAutoInc:
788	>	IBError(ibxeFieldUnsupportedType,[nil]);
789	>	else
790	>	IBError(ibxeFieldUnsupportedType,[nil]);
791	>	end;
792	>	if faRequired in Attributes then
793	>	FieldList := FieldList + ' NOT NULL'; {do not localize}
794	>	end;
795	>	end;
796	>	end;
797	>
798	>	procedure InternalCreateTable;
799	>	var
800	>	I: Integer;
801	>	Query: TIBSQL;
802	>	begin
803	>	if (FieldList = '') then
804	>	IBError(ibxeFieldUnsupportedType,[nil]);
805	>	Query := TIBSQL.Create(self);
806	>	try
807	>	Query.Database := Database;
808	>	Query.transaction := Transaction;
809	>	Query.SQL.Text := 'Create Table ' +
810	>	QuoteIdentifier(DataBase.SQLDialect, FTableName) +
811	>	' (' + FieldList; {do not localize}
812	>	for I := 0 to IndexDefs.Count - 1 do
813	>	with IndexDefs[I] do
814	>	if ixPrimary in Options then
815	>	begin
816	>	Query.SQL.Text := Query.SQL.Text + ', CONSTRAINT ' +
817	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
818	>	' Primary Key (' +
819	>	FormatFieldsList(Fields) +
820	>	')';
821	>	end;
822	>	Query.SQL.Text := Query.SQL.Text + ')';
823	>	Query.Prepare;
824	>	Query.ExecQuery;
825	>	finally
826	>	Query.Free;
827	>	end;
828	>	end;
829	>
830	>	procedure InternalCreateIndex;
831	>	var
832	>	I: Integer;
833	>	begin
834	>	for I := 0 to IndexDefs.Count - 1 do
835	>	with IndexDefs[I] do
836	>	if not (ixPrimary in Options) then
837	>	AddIndex(Name, Fields, Options);
838	>	end;
839	>
840	>	begin
841	>	CheckInactive;
842	>	InitFieldsList;
843	>	InternalCreateTable;
844	>	InternalCreateIndex;
845	>	end;
846	>
847	>	procedure TIBTable.DeleteTable;
848	>	var
849	>	Query: TIBSQL;
850	>	begin
851	>	CheckInactive;
852	>	Query := TIBSQL.Create(self);
853	>	try
854	>	Query.Database := DataBase;
855	>	Query.Transaction := Transaction;
856	>	Query.SQL.Text := 'drop table ' +  {do not localize}
857	>	QuoteIdentifier(DataBase.SQLDialect, FTableName);
858	>	Query.Prepare;
859	>	Query.ExecQuery;
860	>	finally
861	>	Query.Free;
862	>	end;
863	>	end;
864	>
865	>	procedure TIBTable.EmptyTable;
866	>	var
867	>	Query: TIBSQL;
868	>	begin
869	>	if Active then
870	>	CheckBrowseMode;
871	>	Query := TIBSQL.Create(self);
872	>	try
873	>	Query.Database := DataBase;
874	>	Query.Transaction := Transaction;
875	>	Query.SQL.Text := 'delete from ' + {do not localize}
876	>	QuoteIdentifier(DataBase.SQLDialect, FTableName);
877	>	Query.Prepare;
878	>	Query.ExecQuery;
879	>	if Active then
880	>	begin
881	>	ClearBuffers;
882	>	DataEvent(deDataSetChange, 0);
883	>	end;
884	>	finally
885	>	Query.Free;
886	>	end;
887	>	end;
888	>
889	>	procedure TIBTable.DataEvent(Event: TDataEvent; Info: Ptrint);
890	>	begin
891	>	if Event = dePropertyChange then begin
892	>	IndexDefs.Updated := False;
893	>	FRegenerateSQL := True;
894	>	end;
895	>	inherited DataEvent(Event, Info);
896	>	end;
897	>
898	>	{ Informational & Property }
899	>
900	>	function TIBTable.GetCanModify: Boolean;
901	>	begin
902	>	Result := True;
903	>	if (FTableName = '') or FReadOnly
904	>	or FSystemTable or FMultiTableView then
905	>	Result := False;
906	>	end;
907	>
908	>	function TIBTable.InternalGetUpdatable: Boolean;
909	>	var
910	>	Query : TIBSQL;
911	>	begin
912	>	Database.InternalTransaction.StartTransaction;
913	>	Query := TIBSQL.Create(self);
914	>	try
915	>	Query.Database := DataBase;
916	>	Query.Transaction := Database.InternalTransaction;
917	>	Query.SQL.Text := 'Select RDB$SYSTEM_FLAG, RDB$DBKEY_LENGTH ' + {do not localize}
918	>	'from RDB$RELATIONS where RDB$RELATION_NAME = ' + {do not localize}
919	>	'''' +
920	>	FormatIdentifierValue(Database.SQLDialect,
921	>	QuoteIdentifier(DataBase.SQLDialect, FTableName)) + '''';
922	>	Query.Prepare;
923	>	Query.ExecQuery;
924	>	if (Query.Current[0].AsInteger <> 0) or
925	>	(Query.Current[1].AsInteger <> 8) then
926	>	Result := False
927	>	else
928	>	Result := True;
929	>	finally
930	>	Query.Free;
931	>	Database.InternalTransaction.Commit;
932	>	end;
933	>	end;
934	>
935	>	function TIBTable.FieldDefsStored: Boolean;
936	>	begin
937	>	Result := StoreDefs and (FieldDefs.Count > 0);
938	>	end;
939	>
940	>	function TIBTable.IndexDefsStored: Boolean;
941	>	begin
942	>	Result := StoreDefs and (IndexDefs.Count > 0);
943	>	end;
944	>
945	>	procedure TIBTable.SetParams;
946	>	var
947	>	i: Integer;
948	>	begin
949	>	if (MasterSource = nil) or (MasterSource.DataSet = nil) or
950	>	(not MasterSource.DataSet.Active) or (FMasterFieldsList.Count = 0) then
951	>	exit;
952	>	for i := 0 to FMasterFieldsList.Count - 1 do
953	>	QSelect.Params.ByName(FMasterFieldsList.Strings[i]).Value :=
954	>	MasterSource.DataSet.FieldByName(FMasterFieldsList.Strings[i]).Value;
955	>	end;
956	>
957	>	procedure TIBTable.MasterChanged(Sender: TObject);
958	>	begin
959	>	CheckBrowseMode;
960	>	SetParams;
961	>	ReQuery;
962	>	end;
963	>
964	>	procedure TIBTable.MasterDisabled(Sender: TObject);
965	>	begin
966	>	DataEvent(dePropertyChange, 0);
967	>	ReQuery;
968	>	end;
969	>
970	>	function TIBTable.GetDataSource: TDataSource;
971	>	begin
972	>	Result := FMasterLink.DataSource;
973	>	end;
974	>
975	>	procedure TIBTable.SetDataSource(Value: TDataSource);
976	>	begin
977	>	if IsLinkedTo(Value) then IBError(ibxeCircularDataLink, [Self]);
978	>	if FMasterLink.DataSource <> Value then
979	>	DataEvent(dePropertyChange, 0);
980	>	FMasterLink.DataSource := Value;
981	>	end;
982	>
983	>	function TIBTable.GetMasterFields: string;
984	>	begin
985	>	Result := FMasterLink.FieldNames;
986	>	end;
987	>
988	>	procedure TIBTable.SetMasterFields(const Value: string);
989	>	begin
990	>	if FMasterLink.FieldNames <> Value then
991	>	DataEvent(dePropertyChange, 0);
992	>	FMasterLink.FieldNames := Value;
993	>	end;
994	>
995	>	procedure TIBTable.DoOnNewRecord;
996	>	var
997	>	I: Integer;
998	>	begin
999	>	if FMasterLink.Active and (FMasterLink.Fields.Count > 0) then
1000	>	for I := 0 to FMasterLink.Fields.Count - 1 do
1001	>	IndexFields[I] := TField(FMasterLink.Fields[I]);
1002	>	inherited DoOnNewRecord;
1003	>	end;
1004	>
1005	>	function TIBTable.FormatFieldsList(Value: String): String;
1006	>	var
1007	>	FieldName: string;
1008	>	i: Integer;
1009	>	begin
1010	>	if Database.SQLDialect = 1 then begin
1011	>	Value := QuoteIdentifier(Database.SQLDialect, Value);
1012	>	Result := StringReplace (Value, ';', ', ', [rfReplaceAll]);
1013	>	end
1014	>	else begin
1015	>	i := 1;
1016	>	Result := '';
1017	>	while i <= Length(Value) do
1018	>	begin
1019	>	FieldName := ExtractFieldName(Value, i);
1020	>	if Result = '' then
1021	>	Result := QuoteIdentifier(Database.SQLDialect, FieldName)
1022	>	else
1023	>	Result := Result + ', ' + QuoteIdentifier(Database.SQLDialect, FieldName);
1024	>	end;
1025	>	end;
1026	>	end;
1027	>
1028	>	procedure TIBTable.ExtractLinkFields;
1029	>	var
1030	>	i: Integer;
1031	>	DetailFieldNames: String;
1032	>	begin
1033	>	FMasterFieldsList.Clear;
1034	>	FDetailFieldsList.Clear;
1035	>	i := 1;
1036	>	while i <= Length(MasterFields) do
1037	>	FMasterFieldsList.Add(ExtractFieldName(MasterFields, i));
1038	>	i := 1;
1039	>	if IndexFieldNames = '' then
1040	>	DetailFieldNames := FPrimaryIndexFields
1041	>	else
1042	>	DetailFieldNames := IndexFieldNames;
1043	>	while i <= Length(DetailFieldNames) do
1044	>	FDetailFieldsList.Add(ExtractFieldName(DetailFieldNames, i));
1045	>	end;
1046	>
1047	>	procedure TIBTable.GetDetailLinkFields(MasterFields, DetailFields: TList);
1048	>	var
1049	>	i: Integer;
1050	>	Idx: TIndexDef;
1051	>	begin
1052	>	MasterFields.Clear;
1053	>	DetailFields.Clear;
1054	>	if (MasterSource <> nil) and (MasterSource.DataSet <> nil) and
1055	>	(Self.MasterFields <> '') then
1056	>	begin
1057	>	Idx := nil;
1058	>	MasterSource.DataSet.GetFieldList(MasterFields, Self.MasterFields);
1059	>	UpdateIndexDefs;
1060	>	if IndexName <> '' then
1061	>	Idx := IndexDefs.Find(IndexName)
1062	>	else if IndexFieldNames <> '' then
1063	>	Idx := IndexDefs.GetIndexForFields(IndexFieldNames, False)
1064	>	else
1065	>	for i := 0 to IndexDefs.Count - 1 do
1066	>	if ixPrimary in IndexDefs[i].Options then
1067	>	begin
1068	>	Idx := IndexDefs[i];
1069	>	break;
1070	>	end;
1071	>	if Idx <> nil then
1072	>	GetFieldList(DetailFields, Idx.Fields);
1073	>	end;
1074	>	end;
1075	>
1076	>	procedure TIBTable.SetReadOnly(Value: Boolean);
1077	>	begin
1078	>	CheckInactive;
1079	>	FReadOnly := Value;
1080	>	end;
1081	>
1082	>	procedure TIBTable.SetTableName(Value: String);
1083	>	begin
1084	>	if not (csReading in ComponentState) then
1085	>	begin
1086	>	CheckInactive;
1087	>	if Value <> FTableName then
1088	>	begin
1089	>	ResetSQLStatements;
1090	>	FRegenerateSQL := True;
1091	>	FTableName := Value;
1092	>	IndexName := '';
1093	>	IndexFieldNames := '';
1094	>	FPrimaryIndexFields := '';
1095	>	DataEvent(dePropertyChange, 0);
1096	>	end;
1097	>	end
1098	>	else if Value <> FTableName then
1099	>	FTableName := Value;
1100	>	end;
1101	>
1102	>	function TIBTable.GetIndexField(Index: Integer): TField;
1103	>	var
1104	>	I, Count: Integer;
1105	>	FieldNames, FieldName: String;
1106	>	begin
1107	>	Result := nil;
1108	>	FieldName := '';
1109	>	FieldNames := IndexFieldNames;
1110	>	if FieldNames = '' then
1111	>	begin
1112	>	for I := 0 to IndexDefs.Count - 1 do
1113	>	if (IndexDefs[i].Name = FIndexName) then
1114	>	begin
1115	>	FieldNames := IndexDefs[i].Fields;
1116	>	break;
1117	>	end;
1118	>	end;
1119	>	for I := 0 to Index do
1120	>	begin
1121	>	Count := Pos(';', FieldNames); {mbcs OK}
1122	>	if Count = 0 then
1123	>	FieldName := FieldNames
1124	>	else begin
1125	>	FieldName := Copy(FieldNames, 0, Count - 1);
1126	>	System.Delete(FieldNames, 1, Count);
1127	>	end;
1128	>	end;
1129	>	if FieldName <> '' then
1130	>	Result := FieldByName(FieldName)
1131	>	else
1132	>	IBError(ibxeIndexFieldMissing, [nil]);
1133	>	end;
1134	>
1135	>
1136	>	procedure TIBTable.SetIndexField(Index: Integer; Value: TField);
1137	>	begin
1138	>	GetIndexField(Index).Assign(Value);
1139	>	end;
1140	>
1141	>	function TIBTable.GetIndexFieldCount: Integer;
1142	>	var
1143	>	I, Index: Integer;
1144	>	FieldNames: String;
1145	>	done: Boolean;
1146	>	begin
1147	>	FieldNames := IndexFieldNames;
1148	>	if FieldNames = '' then
1149	>	begin
1150	>	for I := 0 to IndexDefs.Count - 1 do
1151	>	if (IndexDefs[i].Name = FIndexName) then
1152	>	begin
1153	>	FieldNames := IndexDefs[i].Fields;
1154	>	break;
1155	>	end;
1156	>	end;
1157	>	if FieldNames = '' then
1158	>	Result := 0
1159	>	else
1160	>	begin
1161	>	done := False;
1162	>	Result := 1;
1163	>	while not done do
1164	>	begin
1165	>	Index := Pos(';', FieldNames); {mbcs ok}
1166	>	if Index <> 0 then
1167	>	begin
1168	>	System.Delete(FieldNames, 1, Index);
1169	>	Inc(Result);
1170	>	end else
1171	>	done := True;
1172	>	end;
1173	>	end;
1174	>	end;
1175	>
1176	>	function TIBTable.GetTableNames: TStrings;
1177	>	begin
1178	>	FNameList.clear;
1179	>	GetTableNamesFromServer;
1180	>	Result := FNameList;
1181	>	end;
1182	>
1183	>	procedure TIBTable.GetTableNamesFromServer;
1184	>	var
1185	>	Query : TIBSQL;
1186	>	begin
1187	>	if not (csReading in ComponentState) then begin
1188	>	ActivateConnection;
1189	>	Database.InternalTransaction.StartTransaction;
1190	>	Query := TIBSQL.Create(self);
1191	>	try
1192	>	Query.GoToFirstRecordOnExecute := False;
1193	>	Query.Database := DataBase;
1194	>	Query.Transaction := Database.InternalTransaction;
1195	>	if (TableTypes * [ttSystem, ttView] = [ttSystem, ttView]) then
1196	>	Query.SQL.Text := 'Select RDB$RELATION_NAME from RDB$RELATIONS' {do not localize}
1197	>	else if ttSystem in TableTypes then
1198	>	Query.SQL.Text := 'Select RDB$RELATION_NAME from RDB$RELATIONS' + {do not localize}
1199	>	' where RDB$VIEW_BLR is NULL' {do not localize}
1200	>	else if ttView in TableTypes then
1201	>	Query.SQL.Text := 'Select RDB$RELATION_NAME from RDB$RELATIONS' + {do not localize}
1202	>	' where RDB$SYSTEM_FLAG = 0' {do not localize}
1203	>	else
1204	>	Query.SQL.Text := 'Select RDB$RELATION_NAME from RDB$RELATIONS' + {do not localize}
1205	>	' where RDB$VIEW_BLR is NULL and RDB$SYSTEM_FLAG = 0'; {do not localize}
1206	>	Query.Prepare;
1207	>	Query.ExecQuery;
1208	>	while (not Query.EOF) and (Query.Next <> nil) do
1209	>	FNameList.Add (TrimRight(Query.Current[0].AsString));
1210	>	finally
1211	>	Query.Free;
1212	>	Database.InternalTransaction.Commit;
1213	>	end;
1214	>	end;
1215	>	end;
1216	>
1217	>	procedure TIBTable.SwitchToIndex();
1218	>	begin
1219	>	FSwitchingIndex := True;
1220	>	InternalTableRefresh;
1221	>	FSwitchingIndex := False;
1222	>	end;
1223	>
1224	>	procedure TIBTable.InternalTableRefresh();
1225	>	var
1226	>	DBKey: TIBDBKey;
1227	>	begin
1228	>	CheckActive;
1229	>	DBKey := CurrentDBKey;
1230	>	FRegenerateSQL := True;
1231	>	Reopen;
1232	>	if DBKey.DBKey[0] <> 0 then
1233	>	InternalGotoDBKey(DBKey);
1234	>	end;
1235	>
1236	>	procedure TIBTable.GenerateSQL;
1237	>	var
1238	>	i: Integer;
1239	>	SQL: TStrings;
1240	>	OrderByStr: string;
1241	>	bWhereClausePresent: Boolean;
1242	>	fn: string;
1243	>	aField: TFieldDef;
1244	>	begin
1245	>	bWhereClausePresent := False;
1246	>	Database.CheckActive;
1247	>	Transaction.CheckInTransaction;
1248	>	if IndexDefs.Updated = False then
1249	>	IndexDefs.Update;
1250	>	if IndexFieldNames <> '' then
1251	>	OrderByStr := FormatFieldsList(IndexFieldNames)
1252	>	else if IndexName <> '' then
1253	>	OrderByStr := FormatFieldsList(IndexDefs[IndexDefs.Indexof (IndexName)].Fields)
1254	>	else if FDefaultIndex and (FPrimaryIndexFields <> '') then
1255	>	OrderByStr := FormatFieldsList(FPrimaryIndexFields);
1256	>	SQL := TStringList.Create;
1257	>	SQL.Text := 'select ' + {do not localize}
1258	>	QuoteIdentifier(DataBase.SQLDialect, FTableName) + '.*, ' {do not localize}
1259	>	+ 'RDB$DB_KEY as IBX_INTERNAL_DBKEY from ' {do not localize}
1260	>	+ QuoteIdentifier(DataBase.SQLDialect, FTableName);
1261	>	if Filtered and (Filter <> '') then
1262	>	begin
1263	>	SQL.Text := SQL.Text + ' where ' + Filter; {do not localize}
1264	>	bWhereClausePresent := True;
1265	>	end;
1266	>	if (MasterSource <> nil) and (MasterSource.DataSet <> nil) and (MasterFields <> '') then
1267	>	begin
1268	>	if bWhereClausePresent then
1269	>	SQL.Text := SQL.Text + ' AND ' {do not localize}
1270	>	else
1271	>	SQL.Text := SQL.Text + ' WHERE '; {do not localize}
1272	>	ExtractLinkfields;
1273	>	if FDetailFieldsList.Count < FMasterFieldsList.Count then
1274	>	IBError(ibxeUnknownError, [nil]);
1275	>	for i := 0 to FMasterFieldsList.Count - 1 do
1276	>	begin
1277	>	if i > 0 then
1278	>	SQL.Text := SQL.Text + 'AND ';
1279	>	aField := FieldDefs.Find(FDetailFieldsList.Strings[i]);
1280	>	if assigned(aField) then
1281	>	fn := GetDBAliasName(aField.FieldNo)
1282	>	else
1283	>	fn := FDetailFieldsList.Strings[i]; {something wrong if we get here - but should word}
1284	>	SQL.Text := SQL.Text +
1285	>	QuoteIdentifier(DataBase.SQLDialect, fn) + ' = :' + FMasterFieldsList.Strings[i];
1286	>	end;
1287	>	end;
1288	>	if OrderByStr <> '' then
1289	>	SQL.Text := SQL.Text + ' order by ' + OrderByStr; {do not localize}
1290	>	SelectSQL.Assign(SQL);
1291	>	RefreshSQL.Text := 'select ' + {do not localize}
1292	>	QuoteIdentifier(DataBase.SQLDialect, FTableName) + '.*, ' {do not localize}
1293	>	+ 'RDB$DB_KEY as IBX_INTERNAL_DBKEY from ' {do not localize}
1294	>	+ QuoteIdentifier(DataBase.SQLDialect, FTableName) +
1295	>	' where RDB$DB_KEY = :IBX_INTERNAL_DBKEY'; {do not localize}
1296	>	WhereDBKeyRefreshSQL.Assign(RefreshSQL);
1297	>	InternalPrepare;
1298	>	SQL.Free;
1299	>	end;
1300	>
1301	>	procedure TIBTable.GenerateUpdateSQL;
1302	>	var
1303	>	InsertFieldList, InsertParamList, UpdateFieldList: string;
1304	>	WherePrimaryFieldList, WhereAllFieldList: string;
1305	>
1306	>	procedure GenerateFieldLists;
1307	>	var
1308	>	I: Integer;
1309	>	begin
1310	>	for I := 0 to FieldDefs.Count - 1 do begin
1311	>	with FieldDefs[I] do begin
1312	>	if not (InternalCalcField or (faReadOnly in Attributes) or
1313	>	(DataType = ftUnknown)) then
1314	>	begin
1315	>	if ( InsertFieldList <> '' ) then begin
1316	>	InsertFieldList := InsertFieldList + ', ';
1317	>	InsertParamList := InsertParamList + ', ';
1318	>	UpdateFieldList := UpdateFieldList + ', ';
1319	>	if (DataType <> ftBlob) and (DataType <>ftMemo) then
1320	>	WhereAllFieldList := WhereAllFieldList + ' AND ';
1321	>	end;
1322	>	InsertFieldList := InsertFieldList +
1323	>	QuoteIdentifier(DataBase.SQLDialect, GetDBAliasName(FieldNo));
1324	>	InsertParamList := InsertParamList + ':' +  Name;
1325	>	UpdateFieldList := UpdateFieldList +
1326	>	QuoteIdentifier(DataBase.SQLDialect, GetDBAliasName(FieldNo)) +
1327	>	' = :' + Name;
1328	>	if (DataType <> ftBlob) and (DataType <>ftMemo) then
1329	>	WhereAllFieldList := WhereAllFieldList +
1330	>	QuoteIdentifier(DataBase.SQLDialect, GetDBAliasName(FieldNo)) + ' = :' +  Name;
1331	>	end;
1332	>	end;
1333	>	end;
1334	>	end;
1335	>
1336	>	procedure GenerateWherePrimaryFieldList;
1337	>	var
1338	>	i: Integer;
1339	>	tmp, fn: String;
1340	>	aField: TFieldDef;
1341	>	begin
1342	>	i := 1;
1343	>	while i <= Length(FPrimaryIndexFields) do
1344	>	begin
1345	>	tmp := ExtractFieldName(FPrimaryIndexFields, i);
1346	>	aField := FieldDefs.Find(tmp);
1347	>	if assigned(aField) then
1348	>	fn := GetDBAliasName(aField.FieldNo)
1349	>	else
1350	>	fn := tmp; {something wrong if we get here - but will work in most cases}
1351	>	tmp :=
1352	>	QuoteIdentifier(DataBase.SQLDialect, fn) +  ' = :' +
1353	>	QuoteIdentifier(DataBase.SQLDialect, tmp);{do not localize}
1354	>	if WherePrimaryFieldList <> '' then
1355	>	WherePrimaryFieldList :=
1356	>	WherePrimaryFieldList + ' AND ' + tmp
1357	>	else
1358	>	WherePrimaryFieldList := tmp;
1359	>	end;
1360	>	end;
1361	>
1362	>	begin
1363	>	if InternalGetUpdatable = False  then
1364	>	FReadOnly := True
1365	>	else
1366	>	begin
1367	>	DeleteSQL.Text := 'delete from ' + {do not localize}
1368	>	QuoteIdentifier(DataBase.SQLDialect, FTableName) +
1369	>	' where RDB$DB_KEY = ' + ':IBX_INTERNAL_DBKEY'; {do not localize}
1370	>	GenerateFieldLists;
1371	>	InsertSQL.Text := 'insert into ' + {do not localize}
1372	>	QuoteIdentifier(DataBase.SQLDialect, FTableName) +
1373	>	' (' + InsertFieldList + {do not localize}
1374	>	') values (' + InsertParamList + ')'; {do not localize}
1375	>	ModifySQL.Text := 'update ' +
1376	>	QuoteIdentifier(DataBase.SQLDialect, FTableName) +
1377	>	' set ' + UpdateFieldList + {do not localize}
1378	>	' where RDB$DB_KEY = :IBX_INTERNAL_DBKEY'; {do not localize}
1379	>	WhereAllRefreshSQL.Text := 'select ' +  {do not localize}
1380	>	QuoteIdentifier(DataBase.SQLDialect, FTableName) + '.*, '
1381	>	+ 'RDB$DB_KEY as IBX_INTERNAL_DBKEY from ' {do not localize}
1382	>	+ QuoteIdentifier(DataBase.SQLDialect, FTableName) +
1383	>	' where ' + WhereAllFieldList; {do not localize}
1384	>	if FPrimaryIndexFields <> '' then
1385	>	begin
1386	>	GenerateWherePrimaryFieldList;
1387	>	WherePrimaryRefreshSQL.Text := 'select ' + {do not localize}
1388	>	QuoteIdentifier(DataBase.SQLDialect, FTableName) + '.*, ' {do not localize}
1389	>	+ 'RDB$DB_KEY as IBX_INTERNAL_DBKEY from ' {do not localize}
1390	>	+ QuoteIdentifier(DataBase.SQLDialect, FTableName) +
1391	>	' where ' + WherePrimaryFieldList; {do not localize}
1392	>	end;
1393	>	try
1394	>	InternalPrepare;
1395	>	except
1396	>	FReadonly := True;
1397	>	end;
1398	>	end;
1399	>	end;
1400	>
1401	>	procedure TIBTable.ResetSQLStatements;
1402	>	begin
1403	>	SelectSQL.Text := '';
1404	>	DeleteSQL.Text := '';
1405	>	InsertSQL.Text := '';
1406	>	ModifySQL.Text := '';
1407	>	RefreshSQL.Text := '';
1408	>	end;
1409	>
1410	>	procedure TIBTable.SetTableTypes(
1411	>	const Value: TIBTableTypes);
1412	>	begin
1413	>	FTableTypes := Value;
1414	>	end;
1415	>
1416	>	function TIBTable.InternalGotoDBKey(DBKey: TIBDBKey): Boolean;
1417	>
1418	>	function DBKeyCompare (DBKey1, DBKey2: TIBDBKey): Boolean;
1419	>	var
1420	>	I: Integer;
1421	>	begin
1422	>	for I := 0 to 7 do
1423	>	if (DBKey1.DBKey[i] <> DBKey2.DBKey[i]) then begin
1424	>	result := False;
1425	>	exit;
1426	>	end;
1427	>	result := True;
1428	>	end;
1429	>	begin
1430	>	CheckActive;
1431	>	DisableControls;
1432	>	try
1433	>	result := False;
1434	>	First;
1435	>	while ((not result) and (not EOF)) do begin
1436	>	if (DBKeyCompare (DBKey, PRecordData(GetActiveBuf)^.rdDBKey)) then
1437	>	result := True
1438	>	else
1439	>	Next;
1440	>	end;
1441	>	if not result then
1442	>	First
1443	>	else
1444	>	CursorPosChanged;
1445	>	finally
1446	>	EnableControls;
1447	>	end;
1448	>	end;
1449	>
1450	>	function TIBTable.GetCurrentDBKey: TIBDBKey;
1451	>	var
1452	>	Buf: pChar;
1453	>	begin
1454	>	CheckActive;
1455	>	buf := GetActiveBuf;
1456	>	if Buf <> nil then
1457	>	Result := PRecordData(Buf)^.rdDBKey
1458	>	else
1459	>	Result.DBKey[0] := 0;
1460	>	end;
1461	>
1462	>	procedure TIBTable.Reopen;
1463	>	begin
1464	>	DisableControls;
1465	>	try
1466	>	if Active then
1467	>	begin
1468	>	SetState(dsInactive);
1469	>	CloseCursor;
1470	>	OpenCursor(false);
1471	>	SetState(dsBrowse);
1472	>	end;
1473	>	finally
1474	>	EnableControls;
1475	>	end;
1476	>	end;
1477	>
1478	>	end.

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