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Comparing ibx/trunk/runtime/IBTable.pas (file contents):
Revision 1 by tony, Mon Jul 31 16:43:00 2000 UTC vs.
Revision 17 by tony, Sat Dec 28 19:22:24 2013 UTC

#	Line 1 | Line 1
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	<	{************************************************************************}
28	<
29	<	unit IBTable;
30	<
31	<	interface
32	<
33	<	uses Windows, SysUtils, Graphics, Classes, Controls, Db, StdVCL,
34	<	IB, IBDatabase, IBCustomDataSet, IBHeader, IBSQL, IBUtils;
35	<
36	<	type
37	<
38	<	{ TIBTable }
39	<
40	<	TIBTableType = (ttSystem, ttView);
41	<	TIBTableTypes = set of TIBTableType;
42	<	TIndexName = String;
43	<
44	<	TIBTable = class;
45	<
46	<	TIBTable = class(TIBCustomDataSet)
47	<	private
48	<	FSystemTable: Boolean;
49	<	FMultiTableView: Boolean;
50	<	FMasterLink: TMasterDataLink;
51	<	FMasterFieldsList: TStringList;
52	<	FDetailFieldsList: TStringList;
53	<	FStoreDefs: Boolean;
54	<	FIndexDefs: TIndexDefs;
55	<	FDefaultIndex: Boolean;
56	<	FReadOnly: Boolean;
57	<	FFieldsIndex: Boolean;
58	<	FTableName: String;
59	<	FIndexName: TIndexName;
60	<	FRegenerateSQL: Boolean;
61	<	FNameList: TStrings;
62	<	FSwitchingIndex: Boolean;
63	<	FPrimaryIndexFields: string;
64	<	FTableTypes: TIBTableTypes;
65	<	WhereAllRefreshSQL: TStrings;
66	<	WhereDBKeyRefreshSQL: TStrings;
67	<	WherePrimaryRefreshSQL: TStrings;
68	<
69	<	function GetIndexFieldCount: Integer;
70	<	function GetIndexField(Index: Integer): TField;
71	<	procedure MasterChanged(Sender: TObject);
72	<	procedure MasterDisabled(Sender: TObject);
73	<	procedure SetDataSource(Value: TDataSource);
74	<	procedure SetIndexField(Index: Integer; Value: TField);
75	<	procedure SetIndexFieldNames(const Value: string);
76	<	procedure GenerateSQL;
77	<	procedure GenerateUpdateSQL;
78	<	procedure SwitchToIndex();
79	<	procedure InternalTableRefresh();
80	<	function GetTableNames: TStrings;
81	<	procedure GetTableNamesFromServer;
82	<	procedure SetTableTypes(
83	<	const Value: TIBTableTypes);
84	<	function InternalGotoDBKey(DBKey: TIBDBKey): Boolean;
85	<	function FormatFieldsList(Value: string): string;
86	<	function GetCurrentDBKey: TIBDBKey;
87	<	function InternalGetUpdatable: Boolean;
88	<	function GetExists: Boolean;
89	<	procedure SetIndexDefs(Value: TIndexDefs);
90	<	procedure ExtractLinkFields;
91	<	function FieldDefsStored: Boolean;
92	<	function IndexDefsStored: Boolean;
93	<	function GetMasterFields: string;
94	<	procedure SetMasterFields(const Value: string);
95	<	function GetIndexFieldNames: string;
96	<	function GetIndexName: string;
97	<	procedure SetIndexName(const Value: string);
98	<	procedure SetParams;
99	<	procedure SetReadOnly(Value: Boolean);
100	<	procedure SetTableName(Value: String);
101	<	procedure SetIndex(const Value: string; FieldsIndex: Boolean);
102	<	procedure ResetSQLStatements;
103	<	procedure Reopen;
104	<
105	<	protected
106	<	{ IProviderSupport }
107	<	function PSGetDefaultOrder: TIndexDef; override;
108	<	function PSGetKeyFields: string; override;
109	<	function PSGetTableName: string; override;
110	<	function PSGetIndexDefs(IndexTypes: TIndexOptions): TIndexDefs; override;
111	<	procedure PSSetCommandText(const CommandText: string); override;
112	<	procedure PSSetParams(AParams: TParams); override;
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: Longint); override;
120	<	procedure DefChanged(Sender: TObject); override;
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); override;
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	<	SetParams;
238	<	inherited InternalOpen;
239	<	end;
240	<
241	<	procedure TIBTable.InternalRefresh;
242	<	var
243	<	DBKey: TIBDBKey;
244	<	begin
245	<	DBKey := CurrentDBKey;
246	<	Reopen;
247	<	if DBKey.DBKey[0] <> 0 then
248	<	InternalGotoDBKey(DBKey);
249	<	end;
250	<
251	<	procedure TIBTable.SetFiltered(Value: Boolean);
252	<	begin
253	<	if(Filtered <> Value) then
254	<	begin
255	<	inherited SetFiltered(value);
256	<	if Active then
257	<	InternalTableRefresh;
258	<	end
259	<	else
260	<	inherited SetFiltered(value);
261	<	end;
262	<
263	<	procedure TIBTable.SetFilterText(const Value: string);
264	<	begin
265	<	if Filtered and (Value <> Filter) then
266	<	begin
267	<	inherited SetFilterText(value);
268	<	InternalTableRefresh;
269	<	end
270	<	else
271	<	inherited SetFilterText(value);
272	<	end;
273	<
274	<	procedure TIBTable.SetFilterOptions(Value: TFilterOptions);
275	<	begin
276	<	if Value <> [] then
277	<	IBError(ibxeNotSupported, [nil]);
278	<	end;
279	<
280	<	procedure TIBTable.InternalRefreshRow;
281	<	begin
282	<	if CurrentDBKey.DBKey[0] <> 0 then
283	<	QRefresh.SQL.Assign(WhereDBKeyRefreshSQL)
284	<	else if WherePrimaryRefreshSQL.Text <> '' then
285	<	QRefresh.SQL.Assign(WherePrimaryRefreshSQL)
286	<	else
287	<	QRefresh.SQL.Assign(WhereAllRefreshSQL);
288	<	inherited;
289	<	end;
290	<
291	<	procedure TIBTable.DefChanged(Sender: TObject);
292	<	begin
293	<	StoreDefs := True;
294	<	end;
295	<
296	<	procedure TIBTable.InitFieldDefs;
297	<	var
298	<	sqlscale: Integer;
299	<	Query: TIBSQL;
300	<	begin
301	<	if FTableName = '' then IBError(ibxeNoTableName, [nil]);
302	<	if (InternalPrepared) then InternalInitFieldDefs else
303	<	begin
304	<	Database.InternalTransaction.StartTransaction;
305	<	Query := TIBSQL.Create(self);
306	<	try
307	<	Query.GoToFirstRecordOnExecute := False;
308	<	Query.Database := DataBase;
309	<	Query.Transaction := Database.InternalTransaction;
310	<	Query.SQL.Text := 'Select R.RDB$FIELD_NAME, R.RDB$FIELD_POSITION, ' + {do not localize}
311	<	'F.RDB$COMPUTED_BLR, F.RDB$DEFAULT_VALUE, ' + {do not localize}
312	<	'F.RDB$NULL_FLAG, ' + {do not localize}
313	<	'F.RDB$FIELD_LENGTH, F.RDB$FIELD_SCALE, ' + {do not localize}
314	<	'F.RDB$FIELD_TYPE, F.RDB$FIELD_SUB_TYPE, ' + {do not localize}
315	<	'F.RDB$EXTERNAL_LENGTH, F.RDB$EXTERNAL_SCALE, F.RDB$EXTERNAL_TYPE ' + {do not localize}
316	<	'from RDB$RELATION_FIELDS R, RDB$FIELDS F ' + {do not localize}
317	<	'where R.RDB$RELATION_NAME = ' + {do not localize}
318	<	'''' +
319	<	FormatIdentifierValue(Database.SQLDialect, FTableName) +
320	<	''' ' +
321	<	'and R.RDB$FIELD_SOURCE = F.RDB$FIELD_NAME '+ {do not localize}
322	<	'order by R.RDB$FIELD_POSITION'; {do not localize}
323	<
324	<	Query.Prepare;
325	<	Query.ExecQuery;
326	<	FieldDefs.BeginUpdate;
327	<	FieldDefs.Clear;
328	<	while (not Query.EOF) and (Query.Next <> nil) do
329	<	begin
330	<	with FieldDefs.AddFieldDef do
331	<	begin
332	<	FieldNo := Query.Current.ByName('RDB$FIELD_POSITION').AsInteger; {do not localize}
333	<	Name := TrimRight(Query.Current.ByName('RDB$FIELD_NAME').AsString); {do not localize}
334	<	case Query.Current.ByName('RDB$FIELD_TYPE').AsInteger of {do not localize}
335	<	blr_varying, blr_text: begin
336	<	DataType := ftString;
337	<	Size := Query.Current.ByName('RDB$FIELD_LENGTH').AsInteger; {do not localize}
338	<	end;
339	<	blr_float, blr_double, blr_d_float: DataType := ftFloat;
340	<	blr_short: begin
341	<	sqlscale := Query.Current.ByName('RDB$FIELD_SCALE').AsInteger; {do not localize}
342	<	if (sqlscale = 0) then
343	<	DataType := ftSmallInt
344	<	else begin
345	<	DataType := ftBCD;
346	<	Precision := 4;
347	<	end;
348	<	end;
349	<	blr_long: begin
350	<	sqlscale := Query.Current.ByName('RDB$FIELD_SCALE').AsInteger; {do not localize}
351	<	if (sqlscale = 0) then
352	<	DataType := ftInteger
353	<	else if (sqlscale >= (-4)) then begin
354	<	DataType := ftBCD;
355	<	Precision := 9;
356	<	end else
357	<	DataType := ftFloat;
358	<	end;
359	<	blr_int64: begin
360	<	sqlscale := Query.Current.ByName('RDB$FIELD_SCALE').AsInteger; {do not localize}
361	<	if (sqlscale = 0) then
362	<	DataType := ftLargeInt
363	<	else if (sqlscale >= (-4)) then begin
364	<	DataType := ftBCD;
365	<	Precision := 18;
366	<	end else
367	<	DataType := ftFloat;
368	<	end;
369	<	blr_timestamp: DataType := ftDateTime;
370	<	blr_sql_time: DataType := ftTime;
371	<	blr_sql_date: DataType := ftDate;
372	<	blr_blob:
373	<	if (Query.Current.ByName('RDB$FIELD_SUB_TYPE').AsInteger = 1) then {do not localize}
374	<	DataType := ftMemo
375	<	else
376	<	DataType := ftBlob;
377	<	blr_quad: begin
378	<	DataType := ftUnknown;
379	<	Size := sizeof (TISC_QUAD);
380	<	end;
381	<	else
382	<	DataType := ftUnknown;
383	<	end;
384	<	if not (Query.Current.ByName('RDB$COMPUTED_BLR').IsNull) then {do not localize}
385	<	begin
386	<	Attributes := [faReadOnly];
387	<	InternalCalcField := True
388	<	end
389	<	else
390	<	InternalCalcField := False;
391	<	if ((not InternalCalcField) and
392	<	Query.Current.ByName('RDB$DEFAULT_VALUE').IsNull and {do not localize}
393	<	(Query.Current.ByName('RDB$NULL_FLAG').AsInteger = 1) )then begin {do not localize}
394	<	Attributes := [faRequired];
395	<	Required := True;
396	<	end;
397	<	end;
398	<	end;
399	<	FieldDefs.EndUpdate;
400	<	finally
401	<	Query.free;
402	<	Database.InternalTransaction.Commit;
403	<	end;
404	<	end;
405	<	end;
406	<
407	<	{ Index / Ranges / Keys }
408	<
409	<	procedure TIBTable.AddIndex(const Name, Fields: string; Options: TIndexOptions;
410	<	const DescFields: string);
411	<	var
412	<	Query: TIBSQL;
413	<	FieldList: string;
414	<	begin
415	<	FieldDefs.Update;
416	<	if Active then begin
417	<	CheckBrowseMode;
418	<	CursorPosChanged;
419	<	end;
420	<	Query := TIBSQL.Create(self);
421	<	try
422	<	Query.Database := DataBase;
423	<	Query.Transaction := Transaction;
424	<	FieldList := FormatFieldsList(Fields);
425	<	if (ixPrimary in Options) then
426	<	begin
427	<	Query.SQL.Text := 'Alter Table ' + {do not localize}
428	<	FormatIdentifier(Database.SQLDialect, FTableName) +
429	<	' Add CONSTRAINT ' +   {do not localize}
430	<	FormatIdentifier(Database.SQLDialect, Name)
431	<	+ ' Primary Key (' + {do not localize}
432	<	FormatFieldsList(Fields) +
433	<	')';
434	<	end
435	<	else if ([ixUnique, ixDescending] * Options = [ixUnique, ixDescending]) then
436	<	Query.SQL.Text := 'Create unique Descending Index ' + {do not localize}
437	<	FormatIdentifier(Database.SQLDialect, Name) +
438	<	' on ' + {do not localize}
439	<	FormatIdentifier(Database.SQLDialect, FTableName) +
440	<	' (' + FieldList + ')'
441	<	else if (ixUnique in Options) then
442	<	Query.SQL.Text := 'Create unique Index ' + {do not localize}
443	<	FormatIdentifier(Database.SQLDialect, Name) +
444	<	' on ' + {do not localize}
445	<	FormatIdentifier(Database.SQLDialect, FTableName) +
446	<	' (' + FieldList + ')'
447	<	else if (ixDescending in Options) then
448	<	Query.SQL.Text := 'Create Descending Index ' + {do not localize}
449	<	FormatIdentifier(Database.SQLDialect, Name) +
450	<	' on ' + {do not localize}
451	<	FormatIdentifier(Database.SQLDialect, FTableName) +
452	<	' (' + FieldList + ')'
453	<	else
454	<	Query.SQL.Text := 'Create Index ' + {do not localize}
455	<	FormatIdentifier(Database.SQLDialect, Name) +
456	<	' on ' + {do not localize}
457	<	FormatIdentifier(Database.SQLDialect, FTableName) +
458	<	' (' + FieldList + ')';
459	<	Query.Prepare;
460	<	Query.ExecQuery;
461	<	IndexDefs.Updated := False;
462	<	finally
463	<	Query.free
464	<	end;
465	<	end;
466	<
467	<	procedure TIBTable.DeleteIndex(const Name: string);
468	<	var
469	<	Query: TIBSQL;
470	<
471	<	procedure DeleteByIndex;
472	<	begin
473	<	Query := TIBSQL.Create(self);
474	<	try
475	<	Query.Database := DataBase;
476	<	Query.Transaction := Transaction;
477	<	Query.SQL.Text := 'Drop index ' +  {do not localize}
478	<	FormatIdentifier(Database.SQLDialect, Name);
479	<	Query.Prepare;
480	<	Query.ExecQuery;
481	<	IndexDefs.Updated := False;
482	<	finally
483	<	Query.Free;
484	<	end;
485	<	end;
486	<
487	<	function DeleteByConstraint: Boolean;
488	<	begin
489	<	Result := False;
490	<	Query := TIBSQL.Create(self);
491	<	try
492	<	Query.Database := DataBase;
493	<	Query.Transaction := Transaction;
494	<	Query.SQL.Text := 'Select ''foo'' from RDB$RELATION_CONSTRAINTS ' +
495	<	'where RDB$RELATION_NAME = ' +
496	<	'''' +
497	<	FormatIdentifierValue(Database.SQLDialect, FTableName) +
498	<	''' ' +
499	<	' AND RDB$CONSTRAINT_NAME = ' +
500	<	'''' +
501	<	FormatIdentifierValue(Database.SQLDialect, Name) +
502	<	''' ' +
503	<	'AND RDB$CONSTRAINT_TYPE = ''PRIMARY KEY''';
504	<	Query.Prepare;
505	<	Query.ExecQuery;
506	<	if not Query.EOF then
507	<	begin
508	<	Query.Close;
509	<	Query.SQL.Text := 'Alter Table ' +  {do not localize}
510	<	FormatIdentifier(Database.SQLDialect, FTableName) +
511	<	' Drop Constraint ' +
512	<	FormatIdentifier(Database.SQLDialect, Name);
513	<	Query.Prepare;
514	<	Query.ExecQuery;
515	<	IndexDefs.Updated := False;
516	<	Result := True;
517	<	end;
518	<	finally
519	<	Query.Free;
520	<	end;
521	<	end;
522	<
523	<	procedure DeleteByKey;
524	<	begin
525	<	Query := TIBSQL.Create(self);
526	<	try
527	<	Query.Database := DataBase;
528	<	Query.Transaction := Transaction;
529	<	Query.SQL.Text := 'Select RDB$CONSTRAINT_NAME from RDB$RELATION_CONSTRAINTS ' +
530	<	'where RDB$RELATION_NAME = ' +
531	<	'''' +
532	<	FormatIdentifierValue(Database.SQLDialect, FTableName) +
533	<	''' ' +
534	<	'AND RDB$INDEX_NAME = ' +
535	<	'''' +
536	<	FormatIdentifierValue(Database.SQLDialect, Name) +
537	<	''' ' +
538	<	'AND RDB$CONSTRAINT_TYPE = ''PRIMARY KEY''';
539	<	Query.Prepare;
540	<	Query.ExecQuery;
541	<	if not Query.EOF then
542	<	begin
543	<	Query.Close;
544	<	Query.SQL.Text := 'Alter Table ' +  {do not localize}
545	<	FormatIdentifier(Database.SQLDialect, FTableName) +
546	<	' Drop Constraint ' +
547	<	FormatIdentifier(Database.SQLDialect, Query.Current.ByName('RDB$CONSTRAINT_NAME').AsString);
548	<	Query.Prepare;
549	<	Query.ExecQuery;
550	<	IndexDefs.Updated := False;
551	<	end;
552	<	finally
553	<	Query.Free;
554	<	end;
555	<	end;
556	<
557	<	begin
558	<	if Active then
559	<	CheckBrowseMode;
560	<	IndexDefs.Update;
561	<	if (Pos('RDB$PRIMARY', Name) <> 0 ) then {do not localize} {mbcs ok}
562	<	DeleteByKey
563	<	else if not DeleteByConstraint then
564	<	DeleteByIndex;
565	<	end;
566	<
567	<	function TIBTable.GetIndexFieldNames: string;
568	<	begin
569	<	if FFieldsIndex then Result := FIndexName else Result := '';
570	<	end;
571	<
572	<	function TIBTable.GetIndexName: string;
573	<	begin
574	<	if FFieldsIndex then Result := '' else Result := FIndexName;
575	<	end;
576	<
577	<	procedure TIBTable.GetIndexNames(List: TStrings);
578	<	begin
579	<	IndexDefs.Update;
580	<	IndexDefs.GetItemNames(List);
581	<	end;
582	<
583	<	procedure TIBTable.GetIndexParams(const IndexName: string;
584	<	FieldsIndex: Boolean; var IndexedName: string);
585	<	var
586	<	IndexStr: TIndexName;
587	<	begin
588	<	if IndexName <> '' then
589	<	begin
590	<	IndexDefs.Update;
591	<	IndexStr := IndexName;
592	<	if FieldsIndex then
593	<	IndexStr := IndexDefs.FindIndexForFields(IndexName).Name;
594	<	end;
595	<	IndexedName := IndexStr;
596	<	end;
597	<
598	<	procedure TIBTable.SetIndexDefs(Value: TIndexDefs);
599	<	begin
600	<	IndexDefs.Assign(Value);
601	<	end;
602	<
603	<	procedure TIBTable.SetIndex(const Value: string; FieldsIndex: Boolean);
604	<	begin
605	<	if Active then CheckBrowseMode;
606	<	if (FIndexName <> Value) or (FFieldsIndex <> FieldsIndex) then
607	<	begin
608	<	FIndexName := Value;
609	<	FFieldsIndex := FieldsIndex;
610	<	if Active then
611	<	begin
612	<	SwitchToIndex;
613	<	end;
614	<	end;
615	<	end;
616	<
617	<	procedure TIBTable.SetIndexFieldNames(const Value: string);
618	<	begin
619	<	SetIndex(Value, Value <> '');
620	<	end;
621	<
622	<	procedure TIBTable.SetIndexName(const Value: string);
623	<	begin
624	<	SetIndex(Value, False);
625	<	end;
626	<
627	<	procedure TIBTable.UpdateIndexDefs;
628	<	var
629	<	Opts: TIndexOptions;
630	<	Flds: string;
631	<	Query, SubQuery: TIBSQL;
632	<	begin
633	<	if not (csReading in ComponentState) then begin
634	<	if not Active and not FSwitchingIndex  then
635	<	FieldDefs.Update;
636	<	IndexDefs.Clear;
637	<	Database.InternalTransaction.StartTransaction;
638	<	Query := TIBSQL.Create(self);
639	<	try
640	<	FPrimaryIndexFields := '';
641	<	Query.GoToFirstRecordOnExecute := False;
642	<	Query.Database := DataBase;
643	<	Query.Transaction := Database.InternalTransaction;
644	<	Query.SQL.Text :=
645	<	'Select I.RDB$INDEX_NAME, I.RDB$UNIQUE_FLAG, I.RDB$INDEX_TYPE, ' + {do not localize}
646	<	'I.RDB$SEGMENT_COUNT, S.RDB$FIELD_NAME from RDB$INDICES I, ' + {do not localize}
647	<	'RDB$INDEX_SEGMENTS S where I.RDB$INDEX_NAME = S.RDB$INDEX_NAME '+ {do not localize}
648	<	'and I.RDB$RELATION_NAME = ' + '''' + {do not localize}
649	<	FormatIdentifierValue(Database.SQLDialect, FTableName) + '''';
650	<	Query.Prepare;
651	<	Query.ExecQuery;
652	<	while (not Query.EOF) and (Query.Next <> nil) do
653	<	begin
654	<	with IndexDefs.AddIndexDef do
655	<	begin
656	<	Name := TrimRight(Query.Current.ByName('RDB$INDEX_NAME').AsString); {do not localize}
657	<	Opts := [];
658	<	if Pos ('RDB$PRIMARY', Name) = 1 then Include(Opts, ixPrimary); {do not localize} {mbcs ok}
659	<	if Query.Current.ByName('RDB$UNIQUE_FLAG').AsInteger = 1 then Include(Opts, ixUnique); {do not localize}
660	<	if Query.Current.ByName('RDB$INDEX_TYPE').AsInteger = 2  then Include(Opts, ixDescending); {do not localize}
661	<	Options := Opts;
662	<	if (Query.Current.ByName('RDB$SEGMENT_COUNT').AsInteger = 1) then {do not localize}
663	<	Fields := Trim(Query.Current.ByName('RDB$FIELD_NAME').AsString) {do not localize}
664	<	else begin
665	<	SubQuery := TIBSQL.Create(self);
666	<	try
667	<	SubQuery.GoToFirstRecordOnExecute := False;
668	<	SubQuery.Database := DataBase;
669	<	SubQuery.Transaction := Database.InternalTransaction;
670	<	SubQuery.SQL.Text :=
671	<	'Select RDB$FIELD_NAME from RDB$INDEX_SEGMENTS where RDB$INDEX_NAME = ' + {do not localize}
672	<	'''' +
673	<	FormatIdentifierValue(Database.SQLDialect, Name) +
674	<	'''' + 'ORDER BY RDB$FIELD_POSITION'; {do not localize}
675	<	SubQuery.Prepare;
676	<	SubQuery.ExecQuery;
677	<	Flds := '';
678	<	while (not SubQuery.EOF) and (SubQuery.Next <> nil) do
679	<	begin
680	<	if (Flds = '') then
681	<	Flds := TrimRight(SubQuery.Current.ByName('RDB$FIELD_NAME').AsString) {do not localize}
682	<	else begin
683	<	Query.Next;
684	<	Flds := Flds + ';' + TrimRight(SubQuery.Current[0].AsString);
685	<	end;
686	<	end;
687	<	Fields := Flds;
688	<	finally
689	<	SubQuery.Free;
690	<	end;
691	<	end;
692	<	if (ixDescending in Opts) then
693	<	DescFields := Fields;
694	<	if ixPrimary in Opts then
695	<	FPrimaryIndexFields := Fields;
696	<	end;
697	<	end;
698	<	finally
699	<	Query.Free;
700	<	Database.InternalTransaction.Commit;
701	<	end;
702	<	end;
703	<	end;
704	<
705	<	function TIBTable.GetExists: Boolean;
706	<	var
707	<	Query: TIBSQL;
708	<	begin
709	<	Result := Active;
710	<	if Result or (TableName = '') then Exit;
711	<	Database.InternalTransaction.StartTransaction;
712	<	Query := TIBSQL.Create(self);
713	<	try
714	<	Query.Database := DataBase;
715	<	Query.Transaction := Database.InternalTransaction;
716	<	Query.SQL.Text :=
717	<	'Select USER from RDB$RELATIONS where RDB$RELATION_NAME = ' + {do not localize}
718	<	'''' +
719	<	FormatIdentifierValue(Database.SQLDialect, FTableName) + '''';
720	<	Query.Prepare;
721	<	Query.ExecQuery;
722	<	Result := not Query.EOF;
723	<	finally
724	<	Query.Free;
725	<	Database.InternalTransaction.Commit;
726	<	end;
727	<	end;
728	<
729	<	procedure TIBTable.GotoCurrent(Table: TIBTable);
730	<	begin
731	<	CheckBrowseMode;
732	<	Table.CheckBrowseMode;
733	<	if (Database <> Table.Database) or
734	<	(CompareText(TableName, Table.TableName) <> 0) then
735	<	IBError(ibxeTableNameMismatch, [nil]);
736	<	Table.UpdateCursorPos;
737	<	InternalGotoDBKey(Table.CurrentDBKey);
738	<	DoBeforeScroll;
739	<	Resync([rmExact, rmCenter]);
740	<	DoAfterScroll;
741	<	end;
742	<
743	<
744	<	procedure TIBTable.CreateTable;
745	<	var
746	<	FieldList: string;
747	<
748	<	procedure InitFieldsList;
749	<	var
750	<	I: Integer;
751	<	begin
752	<	InitFieldDefsFromFields;
753	<	for I := 0 to FieldDefs.Count - 1 do begin
754	<	if ( I > 0) then
755	<	FieldList := FieldList + ', ';
756	<	with FieldDefs[I] do
757	<	begin
758	<	case DataType of
759	<	ftString:
760	<	FieldList := FieldList +
761	<	FormatIdentifier(Database.SQLDialect, Name) +
762	<	' VARCHAR(' + IntToStr(Size) + ')'; {do not localize}
763	<	ftFixedChar:
764	<	FieldList := FieldList +
765	<	FormatIdentifier(Database.SQLDialect, Name) +
766	<	' CHAR(' + IntToStr(Size) + ')'; {do not localize}
767	<	ftBoolean, ftSmallint, ftWord:
768	<	FieldList := FieldList +
769	<	FormatIdentifier(Database.SQLDialect, Name) +
770	<	' SMALLINT'; {do not localize}
771	<	ftInteger:
772	<	FieldList := FieldList +
773	<	FormatIdentifier(Database.SQLDialect, Name) +
774	<	' INTEGER'; {do not localize}
775	<	ftFloat, ftCurrency:
776	<	FieldList := FieldList +
777	<	FormatIdentifier(Database.SQLDialect, Name) +
778	<	' DOUBLE PRECISION'; {do not localize}
779	<	ftBCD: begin
780	<	if (Database.SQLDialect = 1) then begin
781	<	if (Precision > 9) then
782	<	IBError(ibxeFieldUnsupportedType,[nil]);
783	<	if (Precision <= 4) then
784	<	Precision := 9;
785	<	end;
786	<	if (Precision <= 4 ) then
787	<	FieldList := FieldList +
788	<	FormatIdentifier(Database.SQLDialect, Name) +
789	<	' Numeric(18, 4)' {do not localize}
790	<	else
791	<	FieldList := FieldList +
792	<	FormatIdentifier(Database.SQLDialect, Name) +
793	<	' Numeric(' + IntToStr(Precision) + ', 4)'; {do not localize}
794	<	end;
795	<	ftDate:
796	<	FieldList := FieldList +
797	<	FormatIdentifier(Database.SQLDialect, Name) +
798	<	' DATE'; {do not localize}
799	<	ftTime:
800	<	FieldList := FieldList +
801	<	FormatIdentifier(Database.SQLDialect, Name) +
802	<	' TIME'; {do not localize}
803	<	ftDateTime:
804	<	if (Database.SQLDialect = 1) then
805	<	FieldList := FieldList +
806	<	FormatIdentifier(Database.SQLDialect, Name) +
807	<	' DATE' {do not localize}
808	<	else
809	<	FieldList := FieldList +
810	<	FormatIdentifier(Database.SQLDialect, Name) +
811	<	' TIMESTAMP'; {do not localize}
812	<	ftLargeInt:
813	<	if (Database.SQLDialect = 1) then
814	<	IBError(ibxeFieldUnsupportedType,[nil])
815	<	else
816	<	FieldList := FieldList +
817	<	FormatIdentifier(Database.SQLDialect, Name) +
818	<	' Numeric(18, 0)'; {do not localize}
819	<	ftBlob, ftMemo:
820	<	FieldList := FieldList +
821	<	FormatIdentifier(Database.SQLDialect, Name) +
822	<	' BLOB SUB_TYPE 1'; {do not localize}
823	<	ftBytes, ftVarBytes, ftGraphic..ftTypedBinary:
824	<	FieldList := FieldList +
825	<	FormatIdentifier(Database.SQLDialect, Name) +
826	<	' BLOB SUB_TYPE 0'; {do not localize}
827	<	ftUnknown, ftADT, ftArray, ftReference, ftDataSet,
828	<	ftCursor, ftWideString, ftAutoInc:
829	<	IBError(ibxeFieldUnsupportedType,[nil]);
830	<	else
831	<	IBError(ibxeFieldUnsupportedType,[nil]);
832	<	end;
833	<	if faRequired in Attributes then
834	<	FieldList := FieldList + ' NOT NULL'; {do not localize}
835	<	end;
836	<	end;
837	<	end;
838	<
839	<	procedure InternalCreateTable;
840	<	var
841	<	I: Integer;
842	<	Query: TIBSQL;
843	<	begin
844	<	if (FieldList = '') then
845	<	IBError(ibxeFieldUnsupportedType,[nil]);
846	<	Query := TIBSQL.Create(self);
847	<	try
848	<	Query.Database := Database;
849	<	Query.transaction := Transaction;
850	<	Query.SQL.Text := 'Create Table ' +
851	<	FormatIdentifier(Database.SQLDialect, FTableName) +
852	<	' (' + FieldList; {do not localize}
853	<	for I := 0 to IndexDefs.Count - 1 do
854	<	with IndexDefs[I] do
855	<	if ixPrimary in Options then
856	<	begin
857	<	Query.SQL.Text := Query.SQL.Text + ', CONSTRAINT ' +
858	<	FormatIdentifier(Database.SQLDialect, Name) +
859	<	' Primary Key (' +
860	<	FormatFieldsList(Fields) +
861	<	')';
862	<	end;
863	<	Query.SQL.Text := Query.SQL.Text + ')';
864	<	Query.Prepare;
865	<	Query.ExecQuery;
866	<	finally
867	<	Query.Free;
868	<	end;
869	<	end;
870	<
871	<	procedure InternalCreateIndex;
872	<	var
873	<	I: Integer;
874	<	begin
875	<	for I := 0 to IndexDefs.Count - 1 do
876	<	with IndexDefs[I] do
877	<	if not (ixPrimary in Options) then
878	<	AddIndex(Name, Fields, Options);
879	<	end;
880	<
881	<	begin
882	<	CheckInactive;
883	<	InitFieldsList;
884	<	InternalCreateTable;
885	<	InternalCreateIndex;
886	<	end;
887	<
888	<	procedure TIBTable.DeleteTable;
889	<	var
890	<	Query: TIBSQL;
891	<	begin
892	<	CheckInactive;
893	<	Query := TIBSQL.Create(self);
894	<	try
895	<	Query.Database := DataBase;
896	<	Query.Transaction := Transaction;
897	<	Query.SQL.Text := 'drop table ' +  {do not localize}
898	<	FormatIdentifier(Database.SQLDialect, FTableName);
899	<	Query.Prepare;
900	<	Query.ExecQuery;
901	<	finally
902	<	Query.Free;
903	<	end;
904	<	end;
905	<
906	<	procedure TIBTable.EmptyTable;
907	<	var
908	<	Query: TIBSQL;
909	<	begin
910	<	if Active then
911	<	CheckBrowseMode;
912	<	Query := TIBSQL.Create(self);
913	<	try
914	<	Query.Database := DataBase;
915	<	Query.Transaction := Transaction;
916	<	Query.SQL.Text := 'delete from ' + {do not localize}
917	<	FormatIdentifier(Database.SQLDialect, FTableName);
918	<	Query.Prepare;
919	<	Query.ExecQuery;
920	<	if Active then
921	<	begin
922	<	ClearBuffers;
923	<	DataEvent(deDataSetChange, 0);
924	<	end;
925	<	finally
926	<	Query.Free;
927	<	end;
928	<	end;
929	<
930	<	procedure TIBTable.DataEvent(Event: TDataEvent; Info: Longint);
931	<	begin
932	<	if Event = dePropertyChange then begin
933	<	IndexDefs.Updated := False;
934	<	FRegenerateSQL := True;
935	<	end;
936	<	inherited DataEvent(Event, Info);
937	<	end;
938	<
939	<	{ Informational & Property }
940	<
941	<	function TIBTable.GetCanModify: Boolean;
942	<	begin
943	<	Result := True;
944	<	if (FTableName = '') or FReadOnly
945	<	or FSystemTable or FMultiTableView then
946	<	Result := False;
947	<	end;
948	<
949	<	function TIBTable.InternalGetUpdatable: Boolean;
950	<	var
951	<	Query : TIBSQL;
952	<	begin
953	<	Database.InternalTransaction.StartTransaction;
954	<	Query := TIBSQL.Create(self);
955	<	try
956	<	Query.Database := DataBase;
957	<	Query.Transaction := Database.InternalTransaction;
958	<	Query.SQL.Text := 'Select RDB$SYSTEM_FLAG, RDB$DBKEY_LENGTH ' + {do not localize}
959	<	'from RDB$RELATIONS where RDB$RELATION_NAME = ' + {do not localize}
960	<	'''' +
961	<	FormatIdentifierValue(Database.SQLDialect, FTableName) + '''';
962	<	Query.Prepare;
963	<	Query.ExecQuery;
964	<	if (Query.Current[0].AsInteger <> 0) or
965	<	(Query.Current[1].AsInteger <> 8) then
966	<	Result := False
967	<	else
968	<	Result := True;
969	<	finally
970	<	Query.Free;
971	<	Database.InternalTransaction.Commit;
972	<	end;
973	<	end;
974	<
975	<	function TIBTable.FieldDefsStored: Boolean;
976	<	begin
977	<	Result := StoreDefs and (FieldDefs.Count > 0);
978	<	end;
979	<
980	<	function TIBTable.IndexDefsStored: Boolean;
981	<	begin
982	<	Result := StoreDefs and (IndexDefs.Count > 0);
983	<	end;
984	<
985	<	procedure TIBTable.SetParams;
986	<	var
987	<	i: Integer;
988	<	begin
989	<	if (MasterSource = nil) or (MasterSource.DataSet = nil) or
990	<	(not MasterSource.DataSet.Active) or (FMasterFieldsList.Count = 0) then
991	<	exit;
992	<	for i := 0 to FMasterFieldsList.Count - 1 do
993	<	QSelect.Params.ByName(FMasterFieldsList.Strings[i]).Value :=
994	<	MasterSource.DataSet.FieldByName(FMasterFieldsList.Strings[i]).Value;
995	<	end;
996	<
997	<	procedure TIBTable.MasterChanged(Sender: TObject);
998	<	begin
999	<	CheckBrowseMode;
1000	<	SetParams;
1001	<	ReQuery;
1002	<	end;
1003	<
1004	<	procedure TIBTable.MasterDisabled(Sender: TObject);
1005	<	begin
1006	<	DataEvent(dePropertyChange, 0);
1007	<	ReQuery;
1008	<	end;
1009	<
1010	<	function TIBTable.GetDataSource: TDataSource;
1011	<	begin
1012	<	Result := FMasterLink.DataSource;
1013	<	end;
1014	<
1015	<	procedure TIBTable.SetDataSource(Value: TDataSource);
1016	<	begin
1017	<	if IsLinkedTo(Value) then IBError(ibxeCircularDataLink, [Self]);
1018	<	if FMasterLink.DataSource <> Value then
1019	<	DataEvent(dePropertyChange, 0);
1020	<	FMasterLink.DataSource := Value;
1021	<	end;
1022	<
1023	<	function TIBTable.GetMasterFields: string;
1024	<	begin
1025	<	Result := FMasterLink.FieldNames;
1026	<	end;
1027	<
1028	<	procedure TIBTable.SetMasterFields(const Value: string);
1029	<	begin
1030	<	if FMasterLink.FieldNames <> Value then
1031	<	DataEvent(dePropertyChange, 0);
1032	<	FMasterLink.FieldNames := Value;
1033	<	end;
1034	<
1035	<	procedure TIBTable.DoOnNewRecord;
1036	<	var
1037	<	I: Integer;
1038	<	begin
1039	<	if FMasterLink.Active and (FMasterLink.Fields.Count > 0) then
1040	<	for I := 0 to FMasterLink.Fields.Count - 1 do
1041	<	IndexFields[I] := TField(FMasterLink.Fields[I]);
1042	<	inherited DoOnNewRecord;
1043	<	end;
1044	<
1045	<	function TIBTable.FormatFieldsList(Value: String): String;
1046	<	var
1047	<	FieldName: string;
1048	<	i: Integer;
1049	<	begin
1050	<	if Database.SQLDialect = 1 then begin
1051	<	Value := FormatIdentifier(Database.SQLDialect, Value);
1052	<	Result := StringReplace (Value, ';', ', ', [rfReplaceAll]);
1053	<	end
1054	<	else begin
1055	<	i := 1;
1056	<	Result := '';
1057	<	while i <= Length(Value) do
1058	<	begin
1059	<	FieldName := ExtractFieldName(Value, i);
1060	<	if Result = '' then
1061	<	Result := FormatIdentifier(Database.SQLDialect, FieldName)
1062	<	else
1063	<	Result := Result + ', ' + FormatIdentifier(Database.SQLDialect, FieldName);
1064	<	end;
1065	<	end;
1066	<	end;
1067	<
1068	<	procedure TIBTable.ExtractLinkFields;
1069	<	var
1070	<	i: Integer;
1071	<	DetailFieldNames: String;
1072	<	begin
1073	<	FMasterFieldsList.Clear;
1074	<	FDetailFieldsList.Clear;
1075	<	i := 1;
1076	<	while i <= Length(MasterFields) do
1077	<	FMasterFieldsList.Add(ExtractFieldName(MasterFields, i));
1078	<	i := 1;
1079	<	if IndexFieldNames = '' then
1080	<	DetailFieldNames := FPrimaryIndexFields
1081	<	else
1082	<	DetailFieldNames := IndexFieldNames;
1083	<	while i <= Length(DetailFieldNames) do
1084	<	FDetailFieldsList.Add(ExtractFieldName(DetailFieldNames, i));
1085	<	end;
1086	<
1087	<	procedure TIBTable.GetDetailLinkFields(MasterFields, DetailFields: TList);
1088	<	var
1089	<	i: Integer;
1090	<	Idx: TIndexDef;
1091	<	begin
1092	<	MasterFields.Clear;
1093	<	DetailFields.Clear;
1094	<	if (MasterSource <> nil) and (MasterSource.DataSet <> nil) and
1095	<	(Self.MasterFields <> '') then
1096	<	begin
1097	<	Idx := nil;
1098	<	MasterSource.DataSet.GetFieldList(MasterFields, Self.MasterFields);
1099	<	UpdateIndexDefs;
1100	<	if IndexName <> '' then
1101	<	Idx := IndexDefs.Find(IndexName)
1102	<	else if IndexFieldNames <> '' then
1103	<	Idx := IndexDefs.GetIndexForFields(IndexFieldNames, False)
1104	<	else
1105	<	for i := 0 to IndexDefs.Count - 1 do
1106	<	if ixPrimary in IndexDefs[i].Options then
1107	<	begin
1108	<	Idx := IndexDefs[i];
1109	<	break;
1110	<	end;
1111	<	if Idx <> nil then
1112	<	GetFieldList(DetailFields, Idx.Fields);
1113	<	end;
1114	<	end;
1115	<
1116	<	procedure TIBTable.SetReadOnly(Value: Boolean);
1117	<	begin
1118	<	CheckInactive;
1119	<	FReadOnly := Value;
1120	<	end;
1121	<
1122	<	procedure TIBTable.SetTableName(Value: String);
1123	<	begin
1124	<	if not (csReading in ComponentState) then
1125	<	begin
1126	<	CheckInactive;
1127	<	if Value <> FTableName then
1128	<	begin
1129	<	ResetSQLStatements;
1130	<	FRegenerateSQL := True;
1131	<	FTableName := Value;
1132	<	IndexName := '';
1133	<	IndexFieldNames := '';
1134	<	FPrimaryIndexFields := '';
1135	<	DataEvent(dePropertyChange, 0);
1136	<	end;
1137	<	end
1138	<	else if Value <> FTableName then
1139	<	FTableName := Value;
1140	<	end;
1141	<
1142	<	function TIBTable.GetIndexField(Index: Integer): TField;
1143	<	var
1144	<	I, Count: Integer;
1145	<	FieldNames, FieldName: String;
1146	<	begin
1147	<	Result := nil;
1148	<	FieldName := '';
1149	<	FieldNames := IndexFieldNames;
1150	<	if FieldNames = '' then
1151	<	begin
1152	<	for I := 0 to IndexDefs.Count - 1 do
1153	<	if (IndexDefs[i].Name = FIndexName) then
1154	<	begin
1155	<	FieldNames := IndexDefs[i].Fields;
1156	<	break;
1157	<	end;
1158	<	end;
1159	<	for I := 0 to Index do
1160	<	begin
1161	<	Count := Pos(';', FieldNames); {mbcs OK}
1162	<	if Count = 0 then
1163	<	FieldName := FieldNames
1164	<	else begin
1165	<	FieldName := Copy(FieldNames, 0, Count - 1);
1166	<	System.Delete(FieldNames, 1, Count);
1167	<	end;
1168	<	end;
1169	<	if FieldName <> '' then
1170	<	Result := FieldByName(FieldName)
1171	<	else
1172	<	IBError(ibxeIndexFieldMissing, [nil]);
1173	<	end;
1174	<
1175	<
1176	<	procedure TIBTable.SetIndexField(Index: Integer; Value: TField);
1177	<	begin
1178	<	GetIndexField(Index).Assign(Value);
1179	<	end;
1180	<
1181	<	function TIBTable.GetIndexFieldCount: Integer;
1182	<	var
1183	<	I, Index: Integer;
1184	<	FieldNames: String;
1185	<	done: Boolean;
1186	<	begin
1187	<	FieldNames := IndexFieldNames;
1188	<	if FieldNames = '' then
1189	<	begin
1190	<	for I := 0 to IndexDefs.Count - 1 do
1191	<	if (IndexDefs[i].Name = FIndexName) then
1192	<	begin
1193	<	FieldNames := IndexDefs[i].Fields;
1194	<	break;
1195	<	end;
1196	<	end;
1197	<	if FieldNames = '' then
1198	<	Result := 0
1199	<	else
1200	<	begin
1201	<	done := False;
1202	<	Result := 1;
1203	<	while not done do
1204	<	begin
1205	<	Index := Pos(';', FieldNames); {mbcs ok}
1206	<	if Index <> 0 then
1207	<	begin
1208	<	System.Delete(FieldNames, 1, Index);
1209	<	Inc(Result);
1210	<	end else
1211	<	done := True;
1212	<	end;
1213	<	end;
1214	<	end;
1215	<
1216	<	function TIBTable.GetTableNames: TStrings;
1217	<	begin
1218	<	FNameList.clear;
1219	<	GetTableNamesFromServer;
1220	<	Result := FNameList;
1221	<	end;
1222	<
1223	<	procedure TIBTable.GetTableNamesFromServer;
1224	<	var
1225	<	Query : TIBSQL;
1226	<	begin
1227	<	if not (csReading in ComponentState) then begin
1228	<	ActivateConnection;
1229	<	Database.InternalTransaction.StartTransaction;
1230	<	Query := TIBSQL.Create(self);
1231	<	try
1232	<	Query.GoToFirstRecordOnExecute := False;
1233	<	Query.Database := DataBase;
1234	<	Query.Transaction := Database.InternalTransaction;
1235	<	if (TableTypes * [ttSystem, ttView] = [ttSystem, ttView]) then
1236	<	Query.SQL.Text := 'Select RDB$RELATION_NAME from RDB$RELATIONS' {do not localize}
1237	<	else if ttSystem in TableTypes then
1238	<	Query.SQL.Text := 'Select RDB$RELATION_NAME from RDB$RELATIONS' + {do not localize}
1239	<	' where RDB$VIEW_BLR is NULL' {do not localize}
1240	<	else if ttView in TableTypes then
1241	<	Query.SQL.Text := 'Select RDB$RELATION_NAME from RDB$RELATIONS' + {do not localize}
1242	<	' where RDB$SYSTEM_FLAG = 0' {do not localize}
1243	<	else
1244	<	Query.SQL.Text := 'Select RDB$RELATION_NAME from RDB$RELATIONS' + {do not localize}
1245	<	' where RDB$VIEW_BLR is NULL and RDB$SYSTEM_FLAG = 0'; {do not localize}
1246	<	Query.Prepare;
1247	<	Query.ExecQuery;
1248	<	while (not Query.EOF) and (Query.Next <> nil) do
1249	<	FNameList.Add (TrimRight(Query.Current[0].AsString));
1250	<	finally
1251	<	Query.Free;
1252	<	Database.InternalTransaction.Commit;
1253	<	end;
1254	<	end;
1255	<	end;
1256	<
1257	<	procedure TIBTable.SwitchToIndex();
1258	<	begin
1259	<	FSwitchingIndex := True;
1260	<	InternalTableRefresh;
1261	<	FSwitchingIndex := False;
1262	<	end;
1263	<
1264	<	procedure TIBTable.InternalTableRefresh();
1265	<	var
1266	<	DBKey: TIBDBKey;
1267	<	begin
1268	<	CheckActive;
1269	<	DBKey := CurrentDBKey;
1270	<	FRegenerateSQL := True;
1271	<	Reopen;
1272	<	if DBKey.DBKey[0] <> 0 then
1273	<	InternalGotoDBKey(DBKey);
1274	<	end;
1275	<
1276	<	procedure TIBTable.GenerateSQL;
1277	<	var
1278	<	i: Integer;
1279	<	SQL: TStrings;
1280	<	OrderByStr: string;
1281	<	bWhereClausePresent: Boolean;
1282	<	begin
1283	<	bWhereClausePresent := False;
1284	<	Database.CheckActive;
1285	<	Transaction.CheckInTransaction;
1286	<	if IndexDefs.Updated = False then
1287	<	IndexDefs.Update;
1288	<	if IndexFieldNames <> '' then
1289	<	OrderByStr := FormatFieldsList(IndexFieldNames)
1290	<	else if IndexName <> '' then
1291	<	OrderByStr := FormatFieldsList(IndexDefs[IndexDefs.Indexof (IndexName)].Fields)
1292	<	else if FDefaultIndex and (FPrimaryIndexFields <> '') then
1293	<	OrderByStr := FormatFieldsList(FPrimaryIndexFields);
1294	<	SQL := TStringList.Create;
1295	<	SQL.Text := 'select ' + {do not localize}
1296	<	FormatIdentifier(Database.SQLDialect, FTableName) + '.*, '
1297	<	+ 'RDB$DB_KEY as IBX_INTERNAL_DBKEY from ' {do not localize}
1298	<	+ FormatIdentifier(Database.SQLDialect, FTableName);
1299	<	if Filtered and (Filter <> '') then
1300	<	begin
1301	<	SQL.Text := SQL.Text + ' where ' + Filter; {do not localize}
1302	<	bWhereClausePresent := True;
1303	<	end;
1304	<	if (MasterSource <> nil) and (MasterSource.DataSet <> nil) and (MasterFields <> '') then
1305	<	begin
1306	<	if bWhereClausePresent then
1307	<	SQL.Text := SQL.Text + ' AND ' {do not localize}
1308	<	else
1309	<	SQL.Text := SQL.Text + ' WHERE '; {do not localize}
1310	<	ExtractLinkfields;
1311	<	if FDetailFieldsList.Count < FMasterFieldsList.Count then
1312	<	IBError(ibxeUnknownError, [nil]);
1313	<	for i := 0 to FMasterFieldsList.Count - 1 do
1314	<	begin
1315	<	if i > 0 then
1316	<	SQL.Text := SQL.Text + 'AND ';
1317	<	SQL.Text := SQL.Text +
1318	<	FormatIdentifier(Database.SQLDialect, FDetailFieldsList.Strings[i]) +
1319	<	' = :' +
1320	<	FormatIdentifier(Database.SQLDialect, FMasterFieldsList.Strings[i]);
1321	<	end;
1322	<	end;
1323	<	if OrderByStr <> '' then
1324	<	SQL.Text := SQL.Text + ' order by ' + OrderByStr; {do not localize}
1325	<	SelectSQL.Assign(SQL);
1326	<	RefreshSQL.Text := 'select ' + {do not localize}
1327	<	FormatIdentifier(Database.SQLDialect, FTableName) + '.*, '
1328	<	+ 'RDB$DB_KEY as IBX_INTERNAL_DBKEY from ' {do not localize}
1329	<	+ FormatIdentifier(Database.SQLDialect, FTableName) +
1330	<	' where RDB$DB_KEY = :IBX_INTERNAL_DBKEY'; {do not localize}
1331	<	WhereDBKeyRefreshSQL.Assign(RefreshSQL);
1332	<	InternalPrepare;
1333	<	SQL.Free;
1334	<	end;
1335	<
1336	<	procedure TIBTable.GenerateUpdateSQL;
1337	<	var
1338	<	InsertFieldList, InsertParamList, UpdateFieldList: string;
1339	<	WherePrimaryFieldList, WhereAllFieldList: string;
1340	<
1341	<	procedure GenerateFieldLists;
1342	<	var
1343	<	I: Integer;
1344	<	begin
1345	<	for I := 0 to FieldDefs.Count - 1 do begin
1346	<	with FieldDefs[I] do begin
1347	<	if not (InternalCalcField or (faReadOnly in Attributes) or
1348	<	(DataType = ftUnknown)) then
1349	<	begin
1350	<	if ( InsertFieldList <> '' ) then begin
1351	<	InsertFieldList := InsertFieldList + ', ';
1352	<	InsertParamList := InsertParamList + ', ';
1353	<	UpdateFieldList := UpdateFieldList + ', ';
1354	<	if (DataType <> ftBlob) and (DataType <>ftMemo) then
1355	<	WhereAllFieldList := WhereAllFieldList + ' AND ';
1356	<	end;
1357	<	InsertFieldList := InsertFieldList +
1358	<	FormatIdentifier(Database.SQLDialect, Name);
1359	<	InsertParamList := InsertParamList + ':' +
1360	<	FormatIdentifier(Database.SQLDialect, Name);
1361	<	UpdateFieldList := UpdateFieldList +
1362	<	FormatIdentifier(Database.SQLDialect, Name) +
1363	<	' = :' +
1364	<	FormatIdentifier(Database.SQLDialect, Name);
1365	<	if (DataType <> ftBlob) and (DataType <>ftMemo) then
1366	<	WhereAllFieldList := WhereAllFieldList +
1367	<	FormatIdentifier(Database.SQLDialect, Name) + ' = :' +
1368	<	FormatIdentifier(Database.SQLDialect, Name);{do not localize}
1369	<	end;
1370	<	end;
1371	<	end;
1372	<	end;
1373	<
1374	<	procedure GenerateWherePrimaryFieldList;
1375	<	var
1376	<	i: Integer;
1377	<	tmp: String;
1378	<	begin
1379	<	i := 1;
1380	<	while i <= Length(FPrimaryIndexFields) do
1381	<	begin
1382	<	tmp := ExtractFieldName(FPrimaryIndexFields, i);
1383	<	tmp :=
1384	<	FormatIdentifier(Database.SQLDialect, tmp) +  ' = :' +
1385	<	FormatIdentifier(Database.SQLDialect, tmp);{do not localize}
1386	<	if WherePrimaryFieldList <> '' then
1387	<	WherePrimaryFieldList :=
1388	<	WherePrimaryFieldList + ' AND ' + tmp
1389	<	else
1390	<	WherePrimaryFieldList := tmp;
1391	<	end;
1392	<	end;
1393	<
1394	<	begin
1395	<	if InternalGetUpdatable = False  then
1396	<	FReadOnly := True
1397	<	else
1398	<	begin
1399	<	DeleteSQL.Text := 'delete from ' + {do not localize}
1400	<	FormatIdentifier(Database.SQLDialect, FTableName) +
1401	<	' where RDB$DB_KEY = ' + ':IBX_INTERNAL_DBKEY'; {do not localize}
1402	<	GenerateFieldLists;
1403	<	InsertSQL.Text := 'insert into ' + {do not localize}
1404	<	FormatIdentifier(Database.SQLDialect, FTableName) +
1405	<	' (' + InsertFieldList + {do not localize}
1406	<	') values (' + InsertParamList + ')'; {do not localize}
1407	<	ModifySQL.Text := 'update ' +
1408	<	FormatIdentifier(Database.SQLDialect, FTableName) +
1409	<	' set ' + UpdateFieldList + {do not localize}
1410	<	' where RDB$DB_KEY = :IBX_INTERNAL_DBKEY'; {do not localize}
1411	<	WhereAllRefreshSQL.Text := 'select ' +  {do not localize}
1412	<	FormatIdentifier(Database.SQLDialect, FTableName) + '.*, '
1413	<	+ 'RDB$DB_KEY as IBX_INTERNAL_DBKEY from ' {do not localize}
1414	<	+ FormatIdentifier(Database.SQLDialect, FTableName) +
1415	<	' where ' + WhereAllFieldList; {do not localize}
1416	<	if FPrimaryIndexFields <> '' then
1417	<	begin
1418	<	GenerateWherePrimaryFieldList;
1419	<	WherePrimaryRefreshSQL.Text := 'select ' + {do not localize}
1420	<	FormatIdentifier(Database.SQLDialect, FTableName) + '.*, ' {do not localize}
1421	<	+ 'RDB$DB_KEY as IBX_INTERNAL_DBKEY from ' {do not localize}
1422	<	+ FormatIdentifier(Database.SQLDialect, FTableName) +
1423	<	' where ' + WherePrimaryFieldList; {do not localize}
1424	<	end;
1425	<	try
1426	<	InternalPrepare;
1427	<	except
1428	<	FReadonly := True;
1429	<	end;
1430	<	end;
1431	<	end;
1432	<
1433	<	procedure TIBTable.ResetSQLStatements;
1434	<	begin
1435	<	SelectSQL.Text := '';
1436	<	DeleteSQL.Text := '';
1437	<	InsertSQL.Text := '';
1438	<	ModifySQL.Text := '';
1439	<	RefreshSQL.Text := '';
1440	<	end;
1441	<
1442	<	procedure TIBTable.SetTableTypes(
1443	<	const Value: TIBTableTypes);
1444	<	begin
1445	<	FTableTypes := Value;
1446	<	end;
1447	<
1448	<	function TIBTable.InternalGotoDBKey(DBKey: TIBDBKey): Boolean;
1449	<
1450	<	function DBKeyCompare (DBKey1, DBKey2: TIBDBKey): Boolean;
1451	<	var
1452	<	I: Integer;
1453	<	begin
1454	<	for I := 0 to 7 do
1455	<	if (DBKey1.DBKey[i] <> DBKey2.DBKey[i]) then begin
1456	<	result := False;
1457	<	exit;
1458	<	end;
1459	<	result := True;
1460	<	end;
1461	<	begin
1462	<	CheckActive;
1463	<	DisableControls;
1464	<	try
1465	<	result := False;
1466	<	First;
1467	<	while ((not result) and (not EOF)) do begin
1468	<	if (DBKeyCompare (DBKey, PRecordData(GetActiveBuf)^.rdDBKey)) then
1469	<	result := True
1470	<	else
1471	<	Next;
1472	<	end;
1473	<	if not result then
1474	<	First
1475	<	else
1476	<	CursorPosChanged;
1477	<	finally
1478	<	EnableControls;
1479	<	end;
1480	<	end;
1481	<
1482	<	function TIBTable.GetCurrentDBKey: TIBDBKey;
1483	<	var
1484	<	Buf: pChar;
1485	<	begin
1486	<	CheckActive;
1487	<	buf := GetActiveBuf;
1488	<	if Buf <> nil then
1489	<	Result := PRecordData(Buf)^.rdDBKey
1490	<	else
1491	<	Result.DBKey[0] := 0;
1492	<	end;
1493	<
1494	<	procedure TIBTable.Reopen;
1495	<	begin
1496	<	DisableControls;
1497	<	try
1498	<	if Active then
1499	<	begin
1500	<	SetState(dsInactive);
1501	<	CloseCursor;
1502	<	OpenCursor;
1503	<	SetState(dsBrowse);
1504	<	end;
1505	<	finally
1506	<	EnableControls;
1507	<	end;
1508	<	end;
1509	<
1510	<	{ TIBTable IProviderSupport }
1511	<
1512	<	function TIBTable.PSGetDefaultOrder: TIndexDef;
1513	<
1514	<	function GetIdx(IdxType: TIndexOption): TIndexDef;
1515	<	var
1516	<	i: Integer;
1517	<	begin
1518	<	Result := nil;
1519	<	for i := 0 to IndexDefs.Count - 1 do
1520	<	if IdxType in IndexDefs[i].Options then
1521	<	try
1522	<	Result := IndexDefs[i];
1523	<	GetFieldList(nil, Result.Fields);
1524	<	break;
1525	<	except
1526	<	Result := nil;
1527	<	end;
1528	<	end;
1529	<
1530	<	var
1531	<	DefIdx: TIndexDef;
1532	<	begin
1533	<	DefIdx := nil;
1534	<	IndexDefs.Update;
1535	<	try
1536	<	if IndexName <> '' then
1537	<	DefIdx := IndexDefs.Find(IndexName)
1538	<	else if IndexFieldNames <> '' then
1539	<	DefIdx := IndexDefs.FindIndexForFields(IndexFieldNames);
1540	<	if Assigned(DefIdx) then
1541	<	GetFieldList(nil, DefIdx.Fields);
1542	<	except
1543	<	DefIdx := nil;
1544	<	end;
1545	<	if not Assigned(DefIdx) then
1546	<	DefIdx := GetIdx(ixPrimary);
1547	<	if not Assigned(DefIdx) then
1548	<	DefIdx := GetIdx(ixUnique);
1549	<	if Assigned(DefIdx) then
1550	<	begin
1551	<	Result := TIndexDef.Create(nil);
1552	<	Result.Assign(DefIdx);
1553	<	end else
1554	<	Result := nil;
1555	<	end;
1556	<
1557	<	function TIBTable.PSGetIndexDefs(IndexTypes: TIndexOptions): TIndexDefs;
1558	<	begin
1559	<	Result := GetIndexDefs(IndexDefs, IndexTypes);
1560	<	end;
1561	<
1562	<	function TIBTable.PSGeTTableName: string;
1563	<	begin
1564	<	Result := FTableName;
1565	<	end;
1566	<
1567	<	procedure TIBTable.PSSetParams(AParams: TParams);
1568	<	begin
1569	<	if AParams.Count > 0 then
1570	<	Open;
1571	<	PSReset;
1572	<	end;
1573	<
1574	<	procedure TIBTable.PSSetCommandText(const CommandText: string);
1575	<	begin
1576	<	if CommandText <> '' then
1577	<	TableName := CommandText;
1578	<	end;
1579	<
1580	<	function TIBTable.PSGetKeyFields: string;
1581	<	var
1582	<	i, Idx: Integer;
1583	<	IndexFound: Boolean;
1584	<	begin
1585	<	Result := inherited PSGetKeyFields;
1586	<	if Result = '' then
1587	<	begin
1588	<	if not Exists then Exit;
1589	<	IndexFound := False;
1590	<	IndexDefs.Update;
1591	<	FieldDefs.Update;
1592	<	for i := 0 to IndexDefs.Count - 1 do
1593	<	if ixUnique in IndexDefs[I].Options then
1594	<	begin
1595	<	Idx := 1;
1596	<	Result := IndexDefs[I].Fields;
1597	<	IndexFound := False;
1598	<	while Idx <= Length(Result) do
1599	<	begin
1600	<	IndexFound := FindField(ExtractFieldName(Result, Idx)) <> nil;
1601	<	if not IndexFound then Break;
1602	<	end;
1603	<	if IndexFound then Break;
1604	<	end;
1605	<	if not IndexFound then
1606	<	Result := '';
1607	<	end;
1608	<	end;
1609	<
1610	<	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	>	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	>	SetParams;
238	>	inherited InternalOpen;
239	>	end;
240	>
241	>	procedure TIBTable.InternalRefresh;
242	>	var
243	>	DBKey: TIBDBKey;
244	>	begin
245	>	DBKey := CurrentDBKey;
246	>	Reopen;
247	>	if DBKey.DBKey[0] <> 0 then
248	>	InternalGotoDBKey(DBKey);
249	>	end;
250	>
251	>	procedure TIBTable.SetFiltered(Value: Boolean);
252	>	begin
253	>	if(Filtered <> Value) then
254	>	begin
255	>	inherited SetFiltered(value);
256	>	if Active then
257	>	InternalTableRefresh;
258	>	end
259	>	else
260	>	inherited SetFiltered(value);
261	>	end;
262	>
263	>	procedure TIBTable.SetFilterText(const Value: string);
264	>	begin
265	>	if Filtered and (Value <> Filter) then
266	>	begin
267	>	inherited SetFilterText(value);
268	>	InternalTableRefresh;
269	>	end
270	>	else
271	>	inherited SetFilterText(value);
272	>	end;
273	>
274	>	procedure TIBTable.SetFilterOptions(Value: TFilterOptions);
275	>	begin
276	>	if Value <> [] then
277	>	IBError(ibxeNotSupported, [nil]);
278	>	end;
279	>
280	>	procedure TIBTable.InternalRefreshRow;
281	>	begin
282	>	if CurrentDBKey.DBKey[0] <> 0 then
283	>	QRefresh.SQL.Assign(WhereDBKeyRefreshSQL)
284	>	else if WherePrimaryRefreshSQL.Text <> '' then
285	>	QRefresh.SQL.Assign(WherePrimaryRefreshSQL)
286	>	else
287	>	QRefresh.SQL.Assign(WhereAllRefreshSQL);
288	>	inherited InternalRefreshRow;
289	>	end;
290	>
291	>	procedure TIBTable.DefChanged(Sender: TObject);
292	>	begin
293	>	StoreDefs := True;
294	>	end;
295	>
296	>	procedure TIBTable.InitFieldDefs;
297	>	var
298	>	sqlscale: Integer;
299	>	Query: TIBSQL;
300	>	begin
301	>	if FTableName = '' then IBError(ibxeNoTableName, [nil]);
302	>	if (InternalPrepared) then InternalInitFieldDefs else
303	>	begin
304	>	Database.InternalTransaction.StartTransaction;
305	>	Query := TIBSQL.Create(self);
306	>	try
307	>	Query.GoToFirstRecordOnExecute := False;
308	>	Query.Database := DataBase;
309	>	Query.Transaction := Database.InternalTransaction;
310	>	Query.SQL.Text := 'Select R.RDB$FIELD_NAME, R.RDB$FIELD_POSITION, ' + {do not localize}
311	>	'F.RDB$COMPUTED_BLR, F.RDB$DEFAULT_VALUE, ' + {do not localize}
312	>	'F.RDB$NULL_FLAG, ' + {do not localize}
313	>	'F.RDB$FIELD_LENGTH, F.RDB$FIELD_SCALE, ' + {do not localize}
314	>	'F.RDB$FIELD_TYPE, F.RDB$FIELD_SUB_TYPE, ' + {do not localize}
315	>	'F.RDB$EXTERNAL_LENGTH, F.RDB$EXTERNAL_SCALE, F.RDB$EXTERNAL_TYPE ' + {do not localize}
316	>	'from RDB$RELATION_FIELDS R, RDB$FIELDS F ' + {do not localize}
317	>	'where R.RDB$RELATION_NAME = ' + {do not localize}
318	>	'''' +
319	>	FormatIdentifierValue(Database.SQLDialect,
320	>	QuoteIdentifier(DataBase.SQLDialect, FTableName)) +
321	>	''' ' +
322	>	'and R.RDB$FIELD_SOURCE = F.RDB$FIELD_NAME '+ {do not localize}
323	>	'order by R.RDB$FIELD_POSITION'; {do not localize}
324	>
325	>	Query.Prepare;
326	>	Query.ExecQuery;
327	>	FieldDefs.BeginUpdate;
328	>	FieldDefs.Clear;
329	>	while (not Query.EOF) and (Query.Next <> nil) do
330	>	begin
331	>	with FieldDefs.AddFieldDef do
332	>	begin
333	>	(*           FieldNo := Query.Current.ByName('RDB$FIELD_POSITION').AsInteger; {do not localize}*)
334	>	Name := TrimRight(Query.Current.ByName('RDB$FIELD_NAME').AsString); {do not localize}
335	>	case Query.Current.ByName('RDB$FIELD_TYPE').AsInteger of {do not localize}
336	>	blr_varying, blr_text:
337	>	begin
338	>	DataType := ftString;
339	>	Size := Query.Current.ByName('RDB$FIELD_LENGTH').AsInteger; {do not localize}
340	>	end;
341	>	blr_float, blr_double, blr_d_float: DataType := ftFloat;
342	>	blr_short:
343	>	begin
344	>	sqlscale := Query.Current.ByName('RDB$FIELD_SCALE').AsInteger; {do not localize}
345	>	if (sqlscale = 0) then
346	>	DataType := ftSmallInt
347	>	else
348	>	begin
349	>	DataType := ftBCD;
350	>	Precision := 4;
351	>	end;
352	>	end;
353	>	blr_long:
354	>	begin
355	>	sqlscale := Query.Current.ByName('RDB$FIELD_SCALE').AsInteger; {do not localize}
356	>	if (sqlscale = 0) then
357	>	DataType := ftInteger
358	>	else if (sqlscale >= (-4)) then
359	>	begin
360	>	DataType := ftBCD;
361	>	Precision := 9;
362	>	end
363	>	else
364	>	DataType := ftFloat;
365	>	end;
366	>	blr_int64:
367	>	begin
368	>	sqlscale := Query.Current.ByName('RDB$FIELD_SCALE').AsInteger; {do not localize}
369	>	if (sqlscale = 0) then
370	>	DataType := ftLargeInt
371	>	else if (sqlscale >= (-4)) then
372	>	begin
373	>	DataType := ftBCD;
374	>	Precision := 18;
375	>	end
376	>	else
377	>	DataType := ftFloat;
378	>	end;
379	>	blr_timestamp: DataType := ftDateTime;
380	>	blr_sql_time: DataType := ftTime;
381	>	blr_sql_date: DataType := ftDate;
382	>	blr_blob:
383	>	if (Query.Current.ByName('RDB$FIELD_SUB_TYPE').AsInteger = 1) then {do not localize}
384	>	DataType := ftMemo
385	>	else
386	>	DataType := ftBlob;
387	>	blr_quad:
388	>	begin
389	>	DataType := ftUnknown;
390	>	Size := sizeof (TISC_QUAD);
391	>	end;
392	>	else
393	>	DataType := ftUnknown;
394	>	end;
395	>	if not (Query.Current.ByName('RDB$COMPUTED_BLR').IsNull) then {do not localize}
396	>	begin
397	>	Attributes := [faReadOnly];
398	>	InternalCalcField := True
399	>	end
400	>	else
401	>	InternalCalcField := False;
402	>	if ((not InternalCalcField) and
403	>	Query.Current.ByName('RDB$DEFAULT_VALUE').IsNull and {do not localize}
404	>	(Query.Current.ByName('RDB$NULL_FLAG').AsInteger = 1) )then {do not localize}
405	>	begin
406	>	Attributes := [faRequired];
407	>	Required := True;
408	>	end;
409	>	end;
410	>	end;
411	>	FieldDefs.EndUpdate;
412	>	finally
413	>	Query.free;
414	>	Database.InternalTransaction.Commit;
415	>	end;
416	>	end;
417	>	end;
418	>
419	>	{ Index / Ranges / Keys }
420	>
421	>	procedure TIBTable.AddIndex(const Name, Fields: string; Options: TIndexOptions;
422	>	const DescFields: string);
423	>	var
424	>	Query: TIBSQL;
425	>	FieldList: string;
426	>	begin
427	>	FieldDefs.Update;
428	>	if Active then begin
429	>	CheckBrowseMode;
430	>	CursorPosChanged;
431	>	end;
432	>	Query := TIBSQL.Create(self);
433	>	try
434	>	Query.Database := DataBase;
435	>	Query.Transaction := Transaction;
436	>	FieldList := FormatFieldsList(Fields);
437	>	if (ixPrimary in Options) then
438	>	begin
439	>	Query.SQL.Text := 'Alter Table ' + {do not localize}
440	>	QuoteIdentifier(Database.SQLDialect, FTableName) +
441	>	' Add CONSTRAINT ' +   {do not localize}
442	>	QuoteIdentifier(Database.SQLDialect, Name)
443	>	+ ' Primary Key (' + {do not localize}
444	>	FormatFieldsList(Fields) +
445	>	')';
446	>	end
447	>	else if ([ixUnique, ixDescending] * Options = [ixUnique, ixDescending]) then
448	>	Query.SQL.Text := 'Create unique Descending Index ' + {do not localize}
449	>	QuoteIdentifier(Database.SQLDialect, Name) +
450	>	' on ' + {do not localize}
451	>	QuoteIdentifier(Database.SQLDialect, FTableName) +
452	>	' (' + FieldList + ')'
453	>	else if (ixUnique in Options) then
454	>	Query.SQL.Text := 'Create unique Index ' + {do not localize}
455	>	QuoteIdentifier(Database.SQLDialect, Name) +
456	>	' on ' + {do not localize}
457	>	QuoteIdentifier(Database.SQLDialect, FTableName) +
458	>	' (' + FieldList + ')'
459	>	else if (ixDescending in Options) then
460	>	Query.SQL.Text := 'Create Descending Index ' + {do not localize}
461	>	QuoteIdentifier(Database.SQLDialect, Name) +
462	>	' on ' + {do not localize}
463	>	QuoteIdentifier(Database.SQLDialect, FTableName) +
464	>	' (' + FieldList + ')'
465	>	else
466	>	Query.SQL.Text := 'Create Index ' + {do not localize}
467	>	QuoteIdentifier(Database.SQLDialect, Name) +
468	>	' on ' + {do not localize}
469	>	QuoteIdentifier(Database.SQLDialect, FTableName) +
470	>	' (' + FieldList + ')';
471	>	Query.Prepare;
472	>	Query.ExecQuery;
473	>	IndexDefs.Updated := False;
474	>	finally
475	>	Query.free
476	>	end;
477	>	end;
478	>
479	>	procedure TIBTable.DeleteIndex(const Name: string);
480	>	var
481	>	Query: TIBSQL;
482	>
483	>	procedure DeleteByIndex;
484	>	begin
485	>	Query := TIBSQL.Create(self);
486	>	try
487	>	Query.Database := DataBase;
488	>	Query.Transaction := Transaction;
489	>	Query.SQL.Text := 'Drop index ' +  {do not localize}
490	>	QuoteIdentifier(Database.SQLDialect, Name);
491	>	Query.Prepare;
492	>	Query.ExecQuery;
493	>	IndexDefs.Updated := False;
494	>	finally
495	>	Query.Free;
496	>	end;
497	>	end;
498	>
499	>	function DeleteByConstraint: Boolean;
500	>	begin
501	>	Result := False;
502	>	Query := TIBSQL.Create(self);
503	>	try
504	>	Query.Database := DataBase;
505	>	Query.Transaction := Transaction;
506	>	Query.SQL.Text := 'Select ''foo'' from RDB$RELATION_CONSTRAINTS ' +
507	>	'where RDB$RELATION_NAME = ' +
508	>	'''' +
509	>	FormatIdentifierValue(Database.SQLDialect,
510	>	QuoteIdentifier(DataBase.SQLDialect, FTableName)) +
511	>	''' ' +
512	>	' AND RDB$CONSTRAINT_NAME = ' +
513	>	'''' +
514	>	FormatIdentifierValue(Database.SQLDialect,
515	>	QuoteIdentifier(DataBase.SQLDialect, Name)) +
516	>	''' ' +
517	>	'AND RDB$CONSTRAINT_TYPE = ''PRIMARY KEY''';
518	>	Query.Prepare;
519	>	Query.ExecQuery;
520	>	if not Query.EOF then
521	>	begin
522	>	Query.Close;
523	>	Query.SQL.Text := 'Alter Table ' +  {do not localize}
524	>	QuoteIdentifier(DataBase.SQLDialect, FTableName) +
525	>	' Drop Constraint ' +
526	>	QuoteIdentifier(DataBase.SQLDialect, Name);
527	>	Query.Prepare;
528	>	Query.ExecQuery;
529	>	IndexDefs.Updated := False;
530	>	Result := True;
531	>	end;
532	>	finally
533	>	Query.Free;
534	>	end;
535	>	end;
536	>
537	>	procedure DeleteByKey;
538	>	begin
539	>	Query := TIBSQL.Create(self);
540	>	try
541	>	Query.Database := DataBase;
542	>	Query.Transaction := Transaction;
543	>	Query.SQL.Text := 'Select RDB$CONSTRAINT_NAME from RDB$RELATION_CONSTRAINTS ' +
544	>	'where RDB$RELATION_NAME = ' +
545	>	'''' +
546	>	FormatIdentifierValue(Database.SQLDialect,
547	>	QuoteIdentifier(DataBase.SQLDialect, FTableName)) +
548	>	''' ' +
549	>	'AND RDB$INDEX_NAME = ' +
550	>	'''' +
551	>	FormatIdentifierValue(Database.SQLDialect,
552	>	QuoteIdentifier(DataBase.SQLDialect, Name)) +
553	>	''' ' +
554	>	'AND RDB$CONSTRAINT_TYPE = ''PRIMARY KEY''';
555	>	Query.Prepare;
556	>	Query.ExecQuery;
557	>	if not Query.EOF then
558	>	begin
559	>	Query.Close;
560	>	Query.SQL.Text := 'Alter Table ' +  {do not localize}
561	>	QuoteIdentifier(DataBase.SQLDialect, FTableName) +
562	>	' Drop Constraint ' +
563	>	QuoteIdentifier(DataBase.SQLDialect, Query.Current.ByName('RDB$CONSTRAINT_NAME').AsString);
564	>	Query.Prepare;
565	>	Query.ExecQuery;
566	>	IndexDefs.Updated := False;
567	>	end;
568	>	finally
569	>	Query.Free;
570	>	end;
571	>	end;
572	>
573	>	begin
574	>	if Active then
575	>	CheckBrowseMode;
576	>	IndexDefs.Update;
577	>	if (Pos('RDB$PRIMARY', Name) <> 0 ) then {do not localize} {mbcs ok}
578	>	DeleteByKey
579	>	else if not DeleteByConstraint then
580	>	DeleteByIndex;
581	>	end;
582	>
583	>	function TIBTable.GetIndexFieldNames: string;
584	>	begin
585	>	if FFieldsIndex then Result := FIndexName else Result := '';
586	>	end;
587	>
588	>	function TIBTable.GetIndexName: string;
589	>	begin
590	>	if FFieldsIndex then Result := '' else Result := FIndexName;
591	>	end;
592	>
593	>	procedure TIBTable.GetIndexNames(List: TStrings);
594	>	begin
595	>	IndexDefs.Update;
596	>	IndexDefs.GetItemNames(List);
597	>	end;
598	>
599	>	procedure TIBTable.GetIndexParams(const IndexName: string;
600	>	FieldsIndex: Boolean; var IndexedName: string);
601	>	var
602	>	IndexStr: TIndexName;
603	>	begin
604	>	if IndexName <> '' then
605	>	begin
606	>	IndexDefs.Update;
607	>	IndexStr := IndexName;
608	>	if FieldsIndex then
609	>	IndexStr := IndexDefs.FindIndexForFields(IndexName).Name;
610	>	end;
611	>	IndexedName := IndexStr;
612	>	end;
613	>
614	>	procedure TIBTable.SetIndexDefs(Value: TIndexDefs);
615	>	begin
616	>	IndexDefs.Assign(Value);
617	>	end;
618	>
619	>	procedure TIBTable.SetIndex(const Value: string; FieldsIndex: Boolean);
620	>	begin
621	>	if Active then CheckBrowseMode;
622	>	if (FIndexName <> Value) or (FFieldsIndex <> FieldsIndex) then
623	>	begin
624	>	FIndexName := Value;
625	>	FFieldsIndex := FieldsIndex;
626	>	if Active then
627	>	begin
628	>	SwitchToIndex;
629	>	end;
630	>	end;
631	>	end;
632	>
633	>	procedure TIBTable.SetIndexFieldNames(const Value: string);
634	>	begin
635	>	SetIndex(Value, Value <> '');
636	>	end;
637	>
638	>	procedure TIBTable.SetIndexName(const Value: string);
639	>	begin
640	>	SetIndex(Value, False);
641	>	end;
642	>
643	>	procedure TIBTable.UpdateIndexDefs;
644	>	var
645	>	Opts: TIndexOptions;
646	>	Flds: string;
647	>	Query, SubQuery: TIBSQL;
648	>	begin
649	>	if not (csReading in ComponentState) then begin
650	>	if not Active and not FSwitchingIndex  then
651	>	FieldDefs.Update;
652	>	IndexDefs.Clear;
653	>	Database.InternalTransaction.StartTransaction;
654	>	Query := TIBSQL.Create(self);
655	>	try
656	>	FPrimaryIndexFields := '';
657	>	Query.GoToFirstRecordOnExecute := False;
658	>	Query.Database := DataBase;
659	>	Query.Transaction := Database.InternalTransaction;
660	>	Query.SQL.Text :=
661	>	'Select I.RDB$INDEX_NAME, I.RDB$UNIQUE_FLAG, I.RDB$INDEX_TYPE, ' + {do not localize}
662	>	'I.RDB$SEGMENT_COUNT, S.RDB$FIELD_NAME from RDB$INDICES I, ' + {do not localize}
663	>	'RDB$INDEX_SEGMENTS S where I.RDB$INDEX_NAME = S.RDB$INDEX_NAME '+ {do not localize}
664	>	'and I.RDB$RELATION_NAME = ' + '''' + {do not localize}
665	>	FormatIdentifierValue(Database.SQLDialect,
666	>	QuoteIdentifier(DataBase.SQLDialect, FTableName)) + '''';
667	>	Query.Prepare;
668	>	Query.ExecQuery;
669	>	while (not Query.EOF) and (Query.Next <> nil) do
670	>	begin
671	>	with IndexDefs.AddIndexDef do
672	>	begin
673	>	Name := TrimRight(Query.Current.ByName('RDB$INDEX_NAME').AsString); {do not localize}
674	>	Opts := [];
675	>	if Pos ('RDB$PRIMARY', Name) = 1 then Include(Opts, ixPrimary); {do not localize} {mbcs ok}
676	>	if Query.Current.ByName('RDB$UNIQUE_FLAG').AsInteger = 1 then Include(Opts, ixUnique); {do not localize}
677	>	if Query.Current.ByName('RDB$INDEX_TYPE').AsInteger = 2  then Include(Opts, ixDescending); {do not localize}
678	>	Options := Opts;
679	>	if (Query.Current.ByName('RDB$SEGMENT_COUNT').AsInteger = 1) then {do not localize}
680	>	Fields := Trim(Query.Current.ByName('RDB$FIELD_NAME').AsString) {do not localize}
681	>	else begin
682	>	SubQuery := TIBSQL.Create(self);
683	>	try
684	>	SubQuery.GoToFirstRecordOnExecute := False;
685	>	SubQuery.Database := DataBase;
686	>	SubQuery.Transaction := Database.InternalTransaction;
687	>	SubQuery.SQL.Text :=
688	>	'Select RDB$FIELD_NAME from RDB$INDEX_SEGMENTS where RDB$INDEX_NAME = ' + {do not localize}
689	>	'''' +
690	>	FormatIdentifierValue(Database.SQLDialect,
691	>	QuoteIdentifier(DataBase.SQLDialect, Name)) +
692	>	'''' + 'ORDER BY RDB$FIELD_POSITION'; {do not localize}
693	>	SubQuery.Prepare;
694	>	SubQuery.ExecQuery;
695	>	Flds := '';
696	>	while (not SubQuery.EOF) and (SubQuery.Next <> nil) do
697	>	begin
698	>	if (Flds = '') then
699	>	Flds := TrimRight(SubQuery.Current.ByName('RDB$FIELD_NAME').AsString) {do not localize}
700	>	else begin
701	>	Query.Next;
702	>	Flds := Flds + ';' + TrimRight(SubQuery.Current[0].AsString);
703	>	end;
704	>	end;
705	>	Fields := Flds;
706	>	finally
707	>	SubQuery.Free;
708	>	end;
709	>	end;
710	>	if (ixDescending in Opts) then
711	>	DescFields := Fields;
712	>	if ixPrimary in Opts then
713	>	FPrimaryIndexFields := Fields;
714	>	end;
715	>	end;
716	>	finally
717	>	Query.Free;
718	>	Database.InternalTransaction.Commit;
719	>	end;
720	>	end;
721	>	end;
722	>
723	>	function TIBTable.GetExists: Boolean;
724	>	var
725	>	Query: TIBSQL;
726	>	begin
727	>	Result := Active;
728	>	if Result or (TableName = '') then Exit;
729	>	Database.InternalTransaction.StartTransaction;
730	>	Query := TIBSQL.Create(self);
731	>	try
732	>	Query.Database := DataBase;
733	>	Query.Transaction := Database.InternalTransaction;
734	>	Query.SQL.Text :=
735	>	'Select USER from RDB$RELATIONS where RDB$RELATION_NAME = ' + {do not localize}
736	>	'''' +
737	>	FormatIdentifierValue(Database.SQLDialect,
738	>	QuoteIdentifier(DataBase.SQLDialect, FTableName)) + '''';
739	>	Query.Prepare;
740	>	Query.ExecQuery;
741	>	Result := not Query.EOF;
742	>	finally
743	>	Query.Free;
744	>	Database.InternalTransaction.Commit;
745	>	end;
746	>	end;
747	>
748	>	procedure TIBTable.GotoCurrent(Table: TIBTable);
749	>	begin
750	>	CheckBrowseMode;
751	>	Table.CheckBrowseMode;
752	>	if (Database <> Table.Database) or
753	>	(CompareText(TableName, Table.TableName) <> 0) then
754	>	IBError(ibxeTableNameMismatch, [nil]);
755	>	Table.UpdateCursorPos;
756	>	InternalGotoDBKey(Table.CurrentDBKey);
757	>	DoBeforeScroll;
758	>	Resync([rmExact, rmCenter]);
759	>	DoAfterScroll;
760	>	end;
761	>
762	>
763	>	procedure TIBTable.CreateTable;
764	>	var
765	>	FieldList: string;
766	>
767	>	procedure InitFieldsList;
768	>	var
769	>	I: Integer;
770	>	begin
771	>	InitFieldDefsFromFields;
772	>	for I := 0 to FieldDefs.Count - 1 do begin
773	>	if ( I > 0) then
774	>	FieldList := FieldList + ', ';
775	>	with FieldDefs[I] do
776	>	begin
777	>	case DataType of
778	>	ftString:
779	>	FieldList := FieldList +
780	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
781	>	' VARCHAR(' + IntToStr(Size) + ')'; {do not localize}
782	>	ftFixedChar:
783	>	FieldList := FieldList +
784	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
785	>	' CHAR(' + IntToStr(Size) + ')'; {do not localize}
786	>	ftBoolean, ftSmallint, ftWord:
787	>	FieldList := FieldList +
788	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
789	>	' SMALLINT'; {do not localize}
790	>	ftInteger:
791	>	FieldList := FieldList +
792	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
793	>	' INTEGER'; {do not localize}
794	>	ftFloat, ftCurrency:
795	>	FieldList := FieldList +
796	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
797	>	' DOUBLE PRECISION'; {do not localize}
798	>	ftBCD: begin
799	>	if (Database.SQLDialect = 1) then begin
800	>	if (Precision > 9) then
801	>	IBError(ibxeFieldUnsupportedType,[nil]);
802	>	if (Precision <= 4) then
803	>	Precision := 9;
804	>	end;
805	>	if (Precision <= 4 ) then
806	>	FieldList := FieldList +
807	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
808	>	' Numeric(18, 4)' {do not localize}
809	>	else
810	>	FieldList := FieldList +
811	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
812	>	' Numeric(' + IntToStr(Precision) + ', 4)'; {do not localize}
813	>	end;
814	>	ftDate:
815	>	FieldList := FieldList +
816	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
817	>	' DATE'; {do not localize}
818	>	ftTime:
819	>	FieldList := FieldList +
820	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
821	>	' TIME'; {do not localize}
822	>	ftDateTime:
823	>	if (Database.SQLDialect = 1) then
824	>	FieldList := FieldList +
825	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
826	>	' DATE' {do not localize}
827	>	else
828	>	FieldList := FieldList +
829	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
830	>	' TIMESTAMP'; {do not localize}
831	>	ftLargeInt:
832	>	if (Database.SQLDialect = 1) then
833	>	IBError(ibxeFieldUnsupportedType,[nil])
834	>	else
835	>	FieldList := FieldList +
836	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
837	>	' Numeric(18, 0)'; {do not localize}
838	>	ftBlob, ftMemo:
839	>	FieldList := FieldList +
840	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
841	>	' BLOB SUB_TYPE 1'; {do not localize}
842	>	ftBytes, ftVarBytes, ftGraphic..ftTypedBinary:
843	>	FieldList := FieldList +
844	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
845	>	' BLOB SUB_TYPE 0'; {do not localize}
846	>	ftUnknown, ftADT, ftArray, ftReference, ftDataSet,
847	>	ftCursor, ftWideString, ftAutoInc:
848	>	IBError(ibxeFieldUnsupportedType,[nil]);
849	>	else
850	>	IBError(ibxeFieldUnsupportedType,[nil]);
851	>	end;
852	>	if faRequired in Attributes then
853	>	FieldList := FieldList + ' NOT NULL'; {do not localize}
854	>	end;
855	>	end;
856	>	end;
857	>
858	>	procedure InternalCreateTable;
859	>	var
860	>	I: Integer;
861	>	Query: TIBSQL;
862	>	begin
863	>	if (FieldList = '') then
864	>	IBError(ibxeFieldUnsupportedType,[nil]);
865	>	Query := TIBSQL.Create(self);
866	>	try
867	>	Query.Database := Database;
868	>	Query.transaction := Transaction;
869	>	Query.SQL.Text := 'Create Table ' +
870	>	QuoteIdentifier(DataBase.SQLDialect, FTableName) +
871	>	' (' + FieldList; {do not localize}
872	>	for I := 0 to IndexDefs.Count - 1 do
873	>	with IndexDefs[I] do
874	>	if ixPrimary in Options then
875	>	begin
876	>	Query.SQL.Text := Query.SQL.Text + ', CONSTRAINT ' +
877	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
878	>	' Primary Key (' +
879	>	FormatFieldsList(Fields) +
880	>	')';
881	>	end;
882	>	Query.SQL.Text := Query.SQL.Text + ')';
883	>	Query.Prepare;
884	>	Query.ExecQuery;
885	>	finally
886	>	Query.Free;
887	>	end;
888	>	end;
889	>
890	>	procedure InternalCreateIndex;
891	>	var
892	>	I: Integer;
893	>	begin
894	>	for I := 0 to IndexDefs.Count - 1 do
895	>	with IndexDefs[I] do
896	>	if not (ixPrimary in Options) then
897	>	AddIndex(Name, Fields, Options);
898	>	end;
899	>
900	>	begin
901	>	CheckInactive;
902	>	InitFieldsList;
903	>	InternalCreateTable;
904	>	InternalCreateIndex;
905	>	end;
906	>
907	>	procedure TIBTable.DeleteTable;
908	>	var
909	>	Query: TIBSQL;
910	>	begin
911	>	CheckInactive;
912	>	Query := TIBSQL.Create(self);
913	>	try
914	>	Query.Database := DataBase;
915	>	Query.Transaction := Transaction;
916	>	Query.SQL.Text := 'drop table ' +  {do not localize}
917	>	QuoteIdentifier(DataBase.SQLDialect, FTableName);
918	>	Query.Prepare;
919	>	Query.ExecQuery;
920	>	finally
921	>	Query.Free;
922	>	end;
923	>	end;
924	>
925	>	procedure TIBTable.EmptyTable;
926	>	var
927	>	Query: TIBSQL;
928	>	begin
929	>	if Active then
930	>	CheckBrowseMode;
931	>	Query := TIBSQL.Create(self);
932	>	try
933	>	Query.Database := DataBase;
934	>	Query.Transaction := Transaction;
935	>	Query.SQL.Text := 'delete from ' + {do not localize}
936	>	QuoteIdentifier(DataBase.SQLDialect, FTableName);
937	>	Query.Prepare;
938	>	Query.ExecQuery;
939	>	if Active then
940	>	begin
941	>	ClearBuffers;
942	>	DataEvent(deDataSetChange, 0);
943	>	end;
944	>	finally
945	>	Query.Free;
946	>	end;
947	>	end;
948	>
949	>	procedure TIBTable.DataEvent(Event: TDataEvent; Info: Ptrint);
950	>	begin
951	>	if Event = dePropertyChange then begin
952	>	IndexDefs.Updated := False;
953	>	FRegenerateSQL := True;
954	>	end;
955	>	inherited DataEvent(Event, Info);
956	>	end;
957	>
958	>	{ Informational & Property }
959	>
960	>	function TIBTable.GetCanModify: Boolean;
961	>	begin
962	>	Result := True;
963	>	if (FTableName = '') or FReadOnly
964	>	or FSystemTable or FMultiTableView then
965	>	Result := False;
966	>	end;
967	>
968	>	function TIBTable.InternalGetUpdatable: Boolean;
969	>	var
970	>	Query : TIBSQL;
971	>	begin
972	>	Database.InternalTransaction.StartTransaction;
973	>	Query := TIBSQL.Create(self);
974	>	try
975	>	Query.Database := DataBase;
976	>	Query.Transaction := Database.InternalTransaction;
977	>	Query.SQL.Text := 'Select RDB$SYSTEM_FLAG, RDB$DBKEY_LENGTH ' + {do not localize}
978	>	'from RDB$RELATIONS where RDB$RELATION_NAME = ' + {do not localize}
979	>	'''' +
980	>	FormatIdentifierValue(Database.SQLDialect,
981	>	QuoteIdentifier(DataBase.SQLDialect, FTableName)) + '''';
982	>	Query.Prepare;
983	>	Query.ExecQuery;
984	>	if (Query.Current[0].AsInteger <> 0) or
985	>	(Query.Current[1].AsInteger <> 8) then
986	>	Result := False
987	>	else
988	>	Result := True;
989	>	finally
990	>	Query.Free;
991	>	Database.InternalTransaction.Commit;
992	>	end;
993	>	end;
994	>
995	>	function TIBTable.FieldDefsStored: Boolean;
996	>	begin
997	>	Result := StoreDefs and (FieldDefs.Count > 0);
998	>	end;
999	>
1000	>	function TIBTable.IndexDefsStored: Boolean;
1001	>	begin
1002	>	Result := StoreDefs and (IndexDefs.Count > 0);
1003	>	end;
1004	>
1005	>	procedure TIBTable.SetParams;
1006	>	var
1007	>	i: Integer;
1008	>	begin
1009	>	if (MasterSource = nil) or (MasterSource.DataSet = nil) or
1010	>	(not MasterSource.DataSet.Active) or (FMasterFieldsList.Count = 0) then
1011	>	exit;
1012	>	for i := 0 to FMasterFieldsList.Count - 1 do
1013	>	QSelect.Params.ByName(FMasterFieldsList.Strings[i]).Value :=
1014	>	MasterSource.DataSet.FieldByName(FMasterFieldsList.Strings[i]).Value;
1015	>	end;
1016	>
1017	>	procedure TIBTable.MasterChanged(Sender: TObject);
1018	>	begin
1019	>	CheckBrowseMode;
1020	>	SetParams;
1021	>	ReQuery;
1022	>	end;
1023	>
1024	>	procedure TIBTable.MasterDisabled(Sender: TObject);
1025	>	begin
1026	>	DataEvent(dePropertyChange, 0);
1027	>	ReQuery;
1028	>	end;
1029	>
1030	>	function TIBTable.GetDataSource: TDataSource;
1031	>	begin
1032	>	Result := FMasterLink.DataSource;
1033	>	end;
1034	>
1035	>	procedure TIBTable.SetDataSource(Value: TDataSource);
1036	>	begin
1037	>	if IsLinkedTo(Value) then IBError(ibxeCircularDataLink, [Self]);
1038	>	if FMasterLink.DataSource <> Value then
1039	>	DataEvent(dePropertyChange, 0);
1040	>	FMasterLink.DataSource := Value;
1041	>	end;
1042	>
1043	>	function TIBTable.GetMasterFields: string;
1044	>	begin
1045	>	Result := FMasterLink.FieldNames;
1046	>	end;
1047	>
1048	>	procedure TIBTable.SetMasterFields(const Value: string);
1049	>	begin
1050	>	if FMasterLink.FieldNames <> Value then
1051	>	DataEvent(dePropertyChange, 0);
1052	>	FMasterLink.FieldNames := Value;
1053	>	end;
1054	>
1055	>	procedure TIBTable.DoOnNewRecord;
1056	>	var
1057	>	I: Integer;
1058	>	begin
1059	>	if FMasterLink.Active and (FMasterLink.Fields.Count > 0) then
1060	>	for I := 0 to FMasterLink.Fields.Count - 1 do
1061	>	IndexFields[I] := TField(FMasterLink.Fields[I]);
1062	>	inherited DoOnNewRecord;
1063	>	end;
1064	>
1065	>	function TIBTable.FormatFieldsList(Value: String): String;
1066	>	var
1067	>	FieldName: string;
1068	>	i: Integer;
1069	>	begin
1070	>	if Database.SQLDialect = 1 then begin
1071	>	Value := QuoteIdentifier(Database.SQLDialect, Value);
1072	>	Result := StringReplace (Value, ';', ', ', [rfReplaceAll]);
1073	>	end
1074	>	else begin
1075	>	i := 1;
1076	>	Result := '';
1077	>	while i <= Length(Value) do
1078	>	begin
1079	>	FieldName := ExtractFieldName(Value, i);
1080	>	if Result = '' then
1081	>	Result := QuoteIdentifier(Database.SQLDialect, FieldName)
1082	>	else
1083	>	Result := Result + ', ' + QuoteIdentifier(Database.SQLDialect, FieldName);
1084	>	end;
1085	>	end;
1086	>	end;
1087	>
1088	>	procedure TIBTable.ExtractLinkFields;
1089	>	var
1090	>	i: Integer;
1091	>	DetailFieldNames: String;
1092	>	begin
1093	>	FMasterFieldsList.Clear;
1094	>	FDetailFieldsList.Clear;
1095	>	i := 1;
1096	>	while i <= Length(MasterFields) do
1097	>	FMasterFieldsList.Add(ExtractFieldName(MasterFields, i));
1098	>	i := 1;
1099	>	if IndexFieldNames = '' then
1100	>	DetailFieldNames := FPrimaryIndexFields
1101	>	else
1102	>	DetailFieldNames := IndexFieldNames;
1103	>	while i <= Length(DetailFieldNames) do
1104	>	FDetailFieldsList.Add(ExtractFieldName(DetailFieldNames, i));
1105	>	end;
1106	>
1107	>	procedure TIBTable.GetDetailLinkFields(MasterFields, DetailFields: TList);
1108	>	var
1109	>	i: Integer;
1110	>	Idx: TIndexDef;
1111	>	begin
1112	>	MasterFields.Clear;
1113	>	DetailFields.Clear;
1114	>	if (MasterSource <> nil) and (MasterSource.DataSet <> nil) and
1115	>	(Self.MasterFields <> '') then
1116	>	begin
1117	>	Idx := nil;
1118	>	MasterSource.DataSet.GetFieldList(MasterFields, Self.MasterFields);
1119	>	UpdateIndexDefs;
1120	>	if IndexName <> '' then
1121	>	Idx := IndexDefs.Find(IndexName)
1122	>	else if IndexFieldNames <> '' then
1123	>	Idx := IndexDefs.GetIndexForFields(IndexFieldNames, False)
1124	>	else
1125	>	for i := 0 to IndexDefs.Count - 1 do
1126	>	if ixPrimary in IndexDefs[i].Options then
1127	>	begin
1128	>	Idx := IndexDefs[i];
1129	>	break;
1130	>	end;
1131	>	if Idx <> nil then
1132	>	GetFieldList(DetailFields, Idx.Fields);
1133	>	end;
1134	>	end;
1135	>
1136	>	procedure TIBTable.SetReadOnly(Value: Boolean);
1137	>	begin
1138	>	CheckInactive;
1139	>	FReadOnly := Value;
1140	>	end;
1141	>
1142	>	procedure TIBTable.SetTableName(Value: String);
1143	>	begin
1144	>	if not (csReading in ComponentState) then
1145	>	begin
1146	>	CheckInactive;
1147	>	if Value <> FTableName then
1148	>	begin
1149	>	ResetSQLStatements;
1150	>	FRegenerateSQL := True;
1151	>	FTableName := Value;
1152	>	IndexName := '';
1153	>	IndexFieldNames := '';
1154	>	FPrimaryIndexFields := '';
1155	>	DataEvent(dePropertyChange, 0);
1156	>	end;
1157	>	end
1158	>	else if Value <> FTableName then
1159	>	FTableName := Value;
1160	>	end;
1161	>
1162	>	function TIBTable.GetIndexField(Index: Integer): TField;
1163	>	var
1164	>	I, Count: Integer;
1165	>	FieldNames, FieldName: String;
1166	>	begin
1167	>	Result := nil;
1168	>	FieldName := '';
1169	>	FieldNames := IndexFieldNames;
1170	>	if FieldNames = '' then
1171	>	begin
1172	>	for I := 0 to IndexDefs.Count - 1 do
1173	>	if (IndexDefs[i].Name = FIndexName) then
1174	>	begin
1175	>	FieldNames := IndexDefs[i].Fields;
1176	>	break;
1177	>	end;
1178	>	end;
1179	>	for I := 0 to Index do
1180	>	begin
1181	>	Count := Pos(';', FieldNames); {mbcs OK}
1182	>	if Count = 0 then
1183	>	FieldName := FieldNames
1184	>	else begin
1185	>	FieldName := Copy(FieldNames, 0, Count - 1);
1186	>	System.Delete(FieldNames, 1, Count);
1187	>	end;
1188	>	end;
1189	>	if FieldName <> '' then
1190	>	Result := FieldByName(FieldName)
1191	>	else
1192	>	IBError(ibxeIndexFieldMissing, [nil]);
1193	>	end;
1194	>
1195	>
1196	>	procedure TIBTable.SetIndexField(Index: Integer; Value: TField);
1197	>	begin
1198	>	GetIndexField(Index).Assign(Value);
1199	>	end;
1200	>
1201	>	function TIBTable.GetIndexFieldCount: Integer;
1202	>	var
1203	>	I, Index: Integer;
1204	>	FieldNames: String;
1205	>	done: Boolean;
1206	>	begin
1207	>	FieldNames := IndexFieldNames;
1208	>	if FieldNames = '' then
1209	>	begin
1210	>	for I := 0 to IndexDefs.Count - 1 do
1211	>	if (IndexDefs[i].Name = FIndexName) then
1212	>	begin
1213	>	FieldNames := IndexDefs[i].Fields;
1214	>	break;
1215	>	end;
1216	>	end;
1217	>	if FieldNames = '' then
1218	>	Result := 0
1219	>	else
1220	>	begin
1221	>	done := False;
1222	>	Result := 1;
1223	>	while not done do
1224	>	begin
1225	>	Index := Pos(';', FieldNames); {mbcs ok}
1226	>	if Index <> 0 then
1227	>	begin
1228	>	System.Delete(FieldNames, 1, Index);
1229	>	Inc(Result);
1230	>	end else
1231	>	done := True;
1232	>	end;
1233	>	end;
1234	>	end;
1235	>
1236	>	function TIBTable.GetTableNames: TStrings;
1237	>	begin
1238	>	FNameList.clear;
1239	>	GetTableNamesFromServer;
1240	>	Result := FNameList;
1241	>	end;
1242	>
1243	>	procedure TIBTable.GetTableNamesFromServer;
1244	>	var
1245	>	Query : TIBSQL;
1246	>	begin
1247	>	if not (csReading in ComponentState) then begin
1248	>	ActivateConnection;
1249	>	Database.InternalTransaction.StartTransaction;
1250	>	Query := TIBSQL.Create(self);
1251	>	try
1252	>	Query.GoToFirstRecordOnExecute := False;
1253	>	Query.Database := DataBase;
1254	>	Query.Transaction := Database.InternalTransaction;
1255	>	if (TableTypes * [ttSystem, ttView] = [ttSystem, ttView]) then
1256	>	Query.SQL.Text := 'Select RDB$RELATION_NAME from RDB$RELATIONS' {do not localize}
1257	>	else if ttSystem in TableTypes then
1258	>	Query.SQL.Text := 'Select RDB$RELATION_NAME from RDB$RELATIONS' + {do not localize}
1259	>	' where RDB$VIEW_BLR is NULL' {do not localize}
1260	>	else if ttView in TableTypes then
1261	>	Query.SQL.Text := 'Select RDB$RELATION_NAME from RDB$RELATIONS' + {do not localize}
1262	>	' where RDB$SYSTEM_FLAG = 0' {do not localize}
1263	>	else
1264	>	Query.SQL.Text := 'Select RDB$RELATION_NAME from RDB$RELATIONS' + {do not localize}
1265	>	' where RDB$VIEW_BLR is NULL and RDB$SYSTEM_FLAG = 0'; {do not localize}
1266	>	Query.Prepare;
1267	>	Query.ExecQuery;
1268	>	while (not Query.EOF) and (Query.Next <> nil) do
1269	>	FNameList.Add (TrimRight(Query.Current[0].AsString));
1270	>	finally
1271	>	Query.Free;
1272	>	Database.InternalTransaction.Commit;
1273	>	end;
1274	>	end;
1275	>	end;
1276	>
1277	>	procedure TIBTable.SwitchToIndex();
1278	>	begin
1279	>	FSwitchingIndex := True;
1280	>	InternalTableRefresh;
1281	>	FSwitchingIndex := False;
1282	>	end;
1283	>
1284	>	procedure TIBTable.InternalTableRefresh();
1285	>	var
1286	>	DBKey: TIBDBKey;
1287	>	begin
1288	>	CheckActive;
1289	>	DBKey := CurrentDBKey;
1290	>	FRegenerateSQL := True;
1291	>	Reopen;
1292	>	if DBKey.DBKey[0] <> 0 then
1293	>	InternalGotoDBKey(DBKey);
1294	>	end;
1295	>
1296	>	procedure TIBTable.GenerateSQL;
1297	>	var
1298	>	i: Integer;
1299	>	SQL: TStrings;
1300	>	OrderByStr: string;
1301	>	bWhereClausePresent: Boolean;
1302	>	begin
1303	>	bWhereClausePresent := False;
1304	>	Database.CheckActive;
1305	>	Transaction.CheckInTransaction;
1306	>	if IndexDefs.Updated = False then
1307	>	IndexDefs.Update;
1308	>	if IndexFieldNames <> '' then
1309	>	OrderByStr := FormatFieldsList(IndexFieldNames)
1310	>	else if IndexName <> '' then
1311	>	OrderByStr := FormatFieldsList(IndexDefs[IndexDefs.Indexof (IndexName)].Fields)
1312	>	else if FDefaultIndex and (FPrimaryIndexFields <> '') then
1313	>	OrderByStr := FormatFieldsList(FPrimaryIndexFields);
1314	>	SQL := TStringList.Create;
1315	>	SQL.Text := 'select ' + {do not localize}
1316	>	QuoteIdentifier(DataBase.SQLDialect, FTableName) + '.*, ' {do not localize}
1317	>	+ 'RDB$DB_KEY as IBX_INTERNAL_DBKEY from ' {do not localize}
1318	>	+ QuoteIdentifier(DataBase.SQLDialect, FTableName);
1319	>	if Filtered and (Filter <> '') then
1320	>	begin
1321	>	SQL.Text := SQL.Text + ' where ' + Filter; {do not localize}
1322	>	bWhereClausePresent := True;
1323	>	end;
1324	>	if (MasterSource <> nil) and (MasterSource.DataSet <> nil) and (MasterFields <> '') then
1325	>	begin
1326	>	if bWhereClausePresent then
1327	>	SQL.Text := SQL.Text + ' AND ' {do not localize}
1328	>	else
1329	>	SQL.Text := SQL.Text + ' WHERE '; {do not localize}
1330	>	ExtractLinkfields;
1331	>	if FDetailFieldsList.Count < FMasterFieldsList.Count then
1332	>	IBError(ibxeUnknownError, [nil]);
1333	>	for i := 0 to FMasterFieldsList.Count - 1 do
1334	>	begin
1335	>	if i > 0 then
1336	>	SQL.Text := SQL.Text + 'AND ';
1337	>	SQL.Text := SQL.Text +
1338	>	QuoteIdentifier(DataBase.SQLDialect, FDetailFieldsList.Strings[i]) +
1339	>	' = :' +
1340	>	QuoteIdentifier(DataBase.SQLDialect, FMasterFieldsList.Strings[i]);
1341	>	end;
1342	>	end;
1343	>	if OrderByStr <> '' then
1344	>	SQL.Text := SQL.Text + ' order by ' + OrderByStr; {do not localize}
1345	>	SelectSQL.Assign(SQL);
1346	>	RefreshSQL.Text := 'select ' + {do not localize}
1347	>	QuoteIdentifier(DataBase.SQLDialect, FTableName) + '.*, ' {do not localize}
1348	>	+ 'RDB$DB_KEY as IBX_INTERNAL_DBKEY from ' {do not localize}
1349	>	+ QuoteIdentifier(DataBase.SQLDialect, FTableName) +
1350	>	' where RDB$DB_KEY = :IBX_INTERNAL_DBKEY'; {do not localize}
1351	>	WhereDBKeyRefreshSQL.Assign(RefreshSQL);
1352	>	InternalPrepare;
1353	>	SQL.Free;
1354	>	end;
1355	>
1356	>	procedure TIBTable.GenerateUpdateSQL;
1357	>	var
1358	>	InsertFieldList, InsertParamList, UpdateFieldList: string;
1359	>	WherePrimaryFieldList, WhereAllFieldList: string;
1360	>
1361	>	procedure GenerateFieldLists;
1362	>	var
1363	>	I: Integer;
1364	>	begin
1365	>	for I := 0 to FieldDefs.Count - 1 do begin
1366	>	with FieldDefs[I] do begin
1367	>	if not (InternalCalcField or (faReadOnly in Attributes) or
1368	>	(DataType = ftUnknown)) then
1369	>	begin
1370	>	if ( InsertFieldList <> '' ) then begin
1371	>	InsertFieldList := InsertFieldList + ', ';
1372	>	InsertParamList := InsertParamList + ', ';
1373	>	UpdateFieldList := UpdateFieldList + ', ';
1374	>	if (DataType <> ftBlob) and (DataType <>ftMemo) then
1375	>	WhereAllFieldList := WhereAllFieldList + ' AND ';
1376	>	end;
1377	>	InsertFieldList := InsertFieldList +
1378	>	QuoteIdentifier(DataBase.SQLDialect, Name);
1379	>	InsertParamList := InsertParamList + ':' +
1380	>	QuoteIdentifier(DataBase.SQLDialect, Name);
1381	>	UpdateFieldList := UpdateFieldList +
1382	>	QuoteIdentifier(DataBase.SQLDialect, Name) +
1383	>	' = :' +
1384	>	QuoteIdentifier(DataBase.SQLDialect, Name);
1385	>	if (DataType <> ftBlob) and (DataType <>ftMemo) then
1386	>	WhereAllFieldList := WhereAllFieldList +
1387	>	QuoteIdentifier(DataBase.SQLDialect, Name) + ' = :' +
1388	>	QuoteIdentifier(DataBase.SQLDialect, Name);{do not localize}
1389	>	end;
1390	>	end;
1391	>	end;
1392	>	end;
1393	>
1394	>	procedure GenerateWherePrimaryFieldList;
1395	>	var
1396	>	i: Integer;
1397	>	tmp: String;
1398	>	begin
1399	>	i := 1;
1400	>	while i <= Length(FPrimaryIndexFields) do
1401	>	begin
1402	>	tmp := ExtractFieldName(FPrimaryIndexFields, i);
1403	>	tmp :=
1404	>	QuoteIdentifier(DataBase.SQLDialect, tmp) +  ' = :' +
1405	>	QuoteIdentifier(DataBase.SQLDialect, tmp);{do not localize}
1406	>	if WherePrimaryFieldList <> '' then
1407	>	WherePrimaryFieldList :=
1408	>	WherePrimaryFieldList + ' AND ' + tmp
1409	>	else
1410	>	WherePrimaryFieldList := tmp;
1411	>	end;
1412	>	end;
1413	>
1414	>	begin
1415	>	if InternalGetUpdatable = False  then
1416	>	FReadOnly := True
1417	>	else
1418	>	begin
1419	>	DeleteSQL.Text := 'delete from ' + {do not localize}
1420	>	QuoteIdentifier(DataBase.SQLDialect, FTableName) +
1421	>	' where RDB$DB_KEY = ' + ':IBX_INTERNAL_DBKEY'; {do not localize}
1422	>	GenerateFieldLists;
1423	>	InsertSQL.Text := 'insert into ' + {do not localize}
1424	>	QuoteIdentifier(DataBase.SQLDialect, FTableName) +
1425	>	' (' + InsertFieldList + {do not localize}
1426	>	') values (' + InsertParamList + ')'; {do not localize}
1427	>	ModifySQL.Text := 'update ' +
1428	>	QuoteIdentifier(DataBase.SQLDialect, FTableName) +
1429	>	' set ' + UpdateFieldList + {do not localize}
1430	>	' where RDB$DB_KEY = :IBX_INTERNAL_DBKEY'; {do not localize}
1431	>	WhereAllRefreshSQL.Text := 'select ' +  {do not localize}
1432	>	QuoteIdentifier(DataBase.SQLDialect, FTableName) + '.*, '
1433	>	+ 'RDB$DB_KEY as IBX_INTERNAL_DBKEY from ' {do not localize}
1434	>	+ QuoteIdentifier(DataBase.SQLDialect, FTableName) +
1435	>	' where ' + WhereAllFieldList; {do not localize}
1436	>	if FPrimaryIndexFields <> '' then
1437	>	begin
1438	>	GenerateWherePrimaryFieldList;
1439	>	WherePrimaryRefreshSQL.Text := 'select ' + {do not localize}
1440	>	QuoteIdentifier(DataBase.SQLDialect, FTableName) + '.*, ' {do not localize}
1441	>	+ 'RDB$DB_KEY as IBX_INTERNAL_DBKEY from ' {do not localize}
1442	>	+ QuoteIdentifier(DataBase.SQLDialect, FTableName) +
1443	>	' where ' + WherePrimaryFieldList; {do not localize}
1444	>	end;
1445	>	try
1446	>	InternalPrepare;
1447	>	except
1448	>	FReadonly := True;
1449	>	end;
1450	>	end;
1451	>	end;
1452	>
1453	>	procedure TIBTable.ResetSQLStatements;
1454	>	begin
1455	>	SelectSQL.Text := '';
1456	>	DeleteSQL.Text := '';
1457	>	InsertSQL.Text := '';
1458	>	ModifySQL.Text := '';
1459	>	RefreshSQL.Text := '';
1460	>	end;
1461	>
1462	>	procedure TIBTable.SetTableTypes(
1463	>	const Value: TIBTableTypes);
1464	>	begin
1465	>	FTableTypes := Value;
1466	>	end;
1467	>
1468	>	function TIBTable.InternalGotoDBKey(DBKey: TIBDBKey): Boolean;
1469	>
1470	>	function DBKeyCompare (DBKey1, DBKey2: TIBDBKey): Boolean;
1471	>	var
1472	>	I: Integer;
1473	>	begin
1474	>	for I := 0 to 7 do
1475	>	if (DBKey1.DBKey[i] <> DBKey2.DBKey[i]) then begin
1476	>	result := False;
1477	>	exit;
1478	>	end;
1479	>	result := True;
1480	>	end;
1481	>	begin
1482	>	CheckActive;
1483	>	DisableControls;
1484	>	try
1485	>	result := False;
1486	>	First;
1487	>	while ((not result) and (not EOF)) do begin
1488	>	if (DBKeyCompare (DBKey, PRecordData(GetActiveBuf)^.rdDBKey)) then
1489	>	result := True
1490	>	else
1491	>	Next;
1492	>	end;
1493	>	if not result then
1494	>	First
1495	>	else
1496	>	CursorPosChanged;
1497	>	finally
1498	>	EnableControls;
1499	>	end;
1500	>	end;
1501	>
1502	>	function TIBTable.GetCurrentDBKey: TIBDBKey;
1503	>	var
1504	>	Buf: pChar;
1505	>	begin
1506	>	CheckActive;
1507	>	buf := GetActiveBuf;
1508	>	if Buf <> nil then
1509	>	Result := PRecordData(Buf)^.rdDBKey
1510	>	else
1511	>	Result.DBKey[0] := 0;
1512	>	end;
1513	>
1514	>	procedure TIBTable.Reopen;
1515	>	begin
1516	>	DisableControls;
1517	>	try
1518	>	if Active then
1519	>	begin
1520	>	SetState(dsInactive);
1521	>	CloseCursor;
1522	>	OpenCursor(false);
1523	>	SetState(dsBrowse);
1524	>	end;
1525	>	finally
1526	>	EnableControls;
1527	>	end;
1528	>	end;
1529	>
1530	>	end.

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