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root/public/ibx/trunk/fbintf/client/FBAttachment.pas

Comparing ibx/trunk/fbintf/client/FBAttachment.pas (file contents):
Revision 45 by tony, Tue Dec 6 10:33:46 2016 UTC vs.
Revision 60 by tony, Mon Mar 27 15:21:02 2017 UTC

#	Line 25 | Line 25
25		*
26		*)
27		unit FBAttachment;
28	+	{$IFDEF MSWINDOWS}
29	+	{$DEFINE WINDOWS}
30	+	{$ENDIF}
31
32		{$IFDEF FPC}
33	<	{$mode objfpc}{$H+}
33	>	{$mode delphi}
34		{$interfaces COM}
35		{$ENDIF}
36
37		interface
38
39		uses
40	<	Classes, SysUtils, IB,  FBParamBlock, FBActivityMonitor;
40	>	Classes, SysUtils, {$IFDEF WINDOWS} windows, {$ENDIF} IB,  FBParamBlock, FBActivityMonitor;
41
42		type
43	+	TCharsetMap = record
44	+	CharsetID: integer;
45	+	CharSetName: AnsiString;
46	+	CharSetWidth: integer;
47	+	CodePage: TSystemCodePage;
48	+	AllowReverseLookup: boolean; {used to ensure that lookup of CP_UTF* does not return UNICODE_FSS}
49	+	end;
50
51		{ TFBAttachment }
52
#	Line 44 | Line 54 | type
54		private
55		FDPB: IDPB;
56		FFirebirdAPI: IFirebirdAPI;
57	+	FUserCharSetMap: array of TCharSetMap;
58		protected
59	<	FDatabaseName: string;
59	>	FDatabaseName: AnsiString;
60		FRaiseExceptionOnConnectError: boolean;
61		FSQLDialect: integer;
62		FHasDefaultCharSet: boolean;
63		FCharSetID: integer;
64		FCodePage: TSystemCodePage;
65	<	constructor Create(DatabaseName: string; DPB: IDPB;
65	>	constructor Create(DatabaseName: AnsiString; DPB: IDPB;
66		RaiseExceptionOnConnectError: boolean);
67		procedure CheckHandle; virtual; abstract;
68	<	function GenerateCreateDatabaseSQL(DatabaseName: string; aDPB: IDPB): string;
68	>	function GenerateCreateDatabaseSQL(DatabaseName: AnsiString; aDPB: IDPB): AnsiString;
69		procedure EndAllTransactions;
70		procedure SetParameters(SQLParams: ISQLParams; params: array of const);
71		public
#	Line 64 | Line 75 | type
75		function StartTransaction(TPB: array of byte; DefaultCompletion: TTransactionCompletion): ITransaction; overload; virtual; abstract;
76		function StartTransaction(TPB: ITPB; DefaultCompletion: TTransactionCompletion): ITransaction; overload; virtual; abstract;
77		procedure Disconnect(Force: boolean=false); virtual; abstract;
78	<	procedure ExecImmediate(transaction: ITransaction; sql: string; aSQLDialect: integer); overload; virtual; abstract;
79	<	procedure ExecImmediate(TPB: array of byte; sql: string; aSQLDialect: integer); overload;
80	<	procedure ExecImmediate(transaction: ITransaction; sql: string); overload;
81	<	procedure ExecImmediate(TPB: array of byte; sql: string); overload;
82	<	function ExecuteSQL(TPB: array of byte; sql: string; SQLDialect: integer; params: array of const): IResults; overload;
83	<	function ExecuteSQL(transaction: ITransaction; sql: string; SQLDialect: integer; params: array of const): IResults; overload;
84	<	function ExecuteSQL(TPB: array of byte; sql: string; params: array of const): IResults; overload;
85	<	function ExecuteSQL(transaction: ITransaction; sql: string; params: array of const): IResults; overload;
86	<	function OpenCursor(transaction: ITransaction; sql: string; aSQLDialect: integer): IResultSet; overload;
87	<	function OpenCursor(transaction: ITransaction; sql: string; aSQLDialect: integer;
78	>	procedure ExecImmediate(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer); overload; virtual; abstract;
79	>	procedure ExecImmediate(TPB: array of byte; sql: AnsiString; aSQLDialect: integer); overload;
80	>	procedure ExecImmediate(transaction: ITransaction; sql: AnsiString); overload;
81	>	procedure ExecImmediate(TPB: array of byte; sql: AnsiString); overload;
82	>	function ExecuteSQL(TPB: array of byte; sql: AnsiString; SQLDialect: integer; params: array of const): IResults; overload;
83	>	function ExecuteSQL(transaction: ITransaction; sql: AnsiString; SQLDialect: integer; params: array of const): IResults; overload;
84	>	function ExecuteSQL(TPB: array of byte; sql: AnsiString; params: array of const): IResults; overload;
85	>	function ExecuteSQL(transaction: ITransaction; sql: AnsiString; params: array of const): IResults; overload;
86	>	function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer): IResultSet; overload;
87	>	function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
88		params: array of const): IResultSet; overload;
89	<	function OpenCursor(transaction: ITransaction; sql: string): IResultSet; overload;
90	<	function OpenCursor(transaction: ITransaction; sql: string;
89	>	function OpenCursor(transaction: ITransaction; sql: AnsiString): IResultSet; overload;
90	>	function OpenCursor(transaction: ITransaction; sql: AnsiString;
91		params: array of const): IResultSet; overload;
92	<	function OpenCursorAtStart(transaction: ITransaction; sql: string; aSQLDialect: integer): IResultSet; overload;
93	<	function OpenCursorAtStart(transaction: ITransaction; sql: string; aSQLDialect: integer;
92	>	function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer): IResultSet; overload;
93	>	function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
94		params: array of const): IResultSet; overload;
95	<	function OpenCursorAtStart(transaction: ITransaction; sql: string): IResultSet; overload;
96	<	function OpenCursorAtStart(transaction: ITransaction; sql: string;
95	>	function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString): IResultSet; overload;
96	>	function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString;
97		params: array of const): IResultSet; overload;
98	<	function OpenCursorAtStart(sql: string): IResultSet; overload;
99	<	function OpenCursorAtStart(sql: string;
98	>	function OpenCursorAtStart(sql: AnsiString): IResultSet; overload;
99	>	function OpenCursorAtStart(sql: AnsiString;
100		params: array of const): IResultSet; overload;
101	<	function Prepare(transaction: ITransaction; sql: string; aSQLDialect: integer): IStatement; overload; virtual; abstract;
102	<	function Prepare(transaction: ITransaction; sql: string): IStatement; overload;
103	<	function PrepareWithNamedParameters(transaction: ITransaction; sql: string;
101	>	function Prepare(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer): IStatement; overload; virtual; abstract;
102	>	function Prepare(transaction: ITransaction; sql: AnsiString): IStatement; overload;
103	>	function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
104		aSQLDialect: integer; GenerateParamNames: boolean=false): IStatement; overload; virtual; abstract;
105	<	function PrepareWithNamedParameters(transaction: ITransaction; sql: string;
105	>	function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
106		GenerateParamNames: boolean=false): IStatement; overload;
107		function GetEventHandler(Events: TStrings): IEvents; overload; virtual; abstract;
108	<	function GetEventHandler(Event: string): IEvents; overload;
108	>	function GetEventHandler(Event: AnsiString): IEvents; overload;
109
110		function GetSQLDialect: integer;
111	<	function OpenBlob(transaction: ITransaction; BlobMetaData: IBlobMetaData; BlobID: TISC_QUAD; BPB: IBPB=nil): IBlob; virtual; abstract; overload;
111	>	function OpenBlob(transaction: ITransaction; BlobMetaData: IBlobMetaData; BlobID: TISC_QUAD; BPB: IBPB=nil): IBlob; overload; virtual; abstract;
112		function OpenBlob(transaction: ITransaction; Field: ISQLData; BPB: IBPB=nil): IBlob; overload;
113		property SQLDialect: integer read FSQLDialect;
103	–	property HasDefaultCharSet: boolean read FHasDefaultCharSet;
104	–	property CharSetID: integer read FCharSetID;
105	–	property CodePage: TSystemCodePage read FCodePage;
114		property DPB: IDPB read FDPB;
115	+	public
116	+	{Character Sets}
117	+	function GetCharsetName(CharSetID: integer): AnsiString;
118	+	function CharSetID2CodePage(CharSetID: integer; var CodePage: TSystemCodePage): boolean;
119	+	function CodePage2CharSetID(CodePage: TSystemCodePage; var CharSetID: integer): boolean;
120	+	function CharSetName2CharSetID(CharSetName: AnsiString; var CharSetID: integer): boolean;
121	+	function CharSetWidth(CharSetID: integer; var Width: integer): boolean;
122	+	procedure RegisterCharSet(CharSetName: AnsiString; CodePage: TSystemCodePage;
123	+	AllowReverseLookup:boolean; out CharSetID: integer);
124	+	property HasDefaultCharSet: boolean read FHasDefaultCharSet;
125	+	property CharSetID: integer read FCharSetID;
126	+	property CodePage: TSystemCodePage read FCodePage;
127		end;
128
129		implementation
130
131		uses FBMessages, FBTransaction;
132
133	+	const
134	+	CharSetMap: array [0..69] of TCharsetMap = (
135	+	(CharsetID: 0; CharSetName: 'NONE'; CharSetWidth: 1; CodePage: CP_ACP; AllowReverseLookup: true),
136	+	(CharsetID: 1; CharSetName: 'OCTETS'; CharSetWidth: 1; CodePage: CP_NONE; AllowReverseLookup: true),
137	+	(CharsetID: 2; CharSetName: 'ASCII'; CharSetWidth: 1; CodePage: CP_ASCII; AllowReverseLookup: true),
138	+	(CharsetID: 3; CharSetName: 'UNICODE_FSS'; CharSetWidth: 3; CodePage: CP_UTF8; AllowReverseLookup: false),
139	+	(CharsetID: 4; CharSetName: 'UTF8'; CharSetWidth: 4; CodePage: CP_UTF8; AllowReverseLookup: true),
140	+	(CharsetID: 5; CharSetName: 'SJIS_0208'; CharSetWidth: 2; CodePage: 20932; AllowReverseLookup: true),
141	+	(CharsetID: 6; CharSetName: 'EUCJ_0208'; CharSetWidth: 2; CodePage: 20932; AllowReverseLookup: true),
142	+	(CharsetID: 7; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: true),
143	+	(CharsetID: 8; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: true),
144	+	(CharsetID: 9; CharSetName: 'DOS737'; CharSetWidth: 1; CodePage: 737; AllowReverseLookup: true),
145	+	(CharsetID: 10; CharSetName: 'DOS437'; CharSetWidth: 1; CodePage: 437; AllowReverseLookup: true),
146	+	(CharsetID: 11; CharSetName: 'DOS850'; CharSetWidth: 1; CodePage: 850; AllowReverseLookup: true),
147	+	(CharsetID: 12; CharSetName: 'DOS865'; CharSetWidth: 1; CodePage: 865; AllowReverseLookup: true),
148	+	(CharsetID: 13; CharSetName: 'DOS860'; CharSetWidth: 1; CodePage: 860; AllowReverseLookup: true),
149	+	(CharsetID: 14; CharSetName: 'DOS863'; CharSetWidth: 1; CodePage: 863; AllowReverseLookup: true),
150	+	(CharsetID: 15; CharSetName: 'DOS775'; CharSetWidth: 1; CodePage: 775; AllowReverseLookup: true),
151	+	(CharsetID: 16; CharSetName: 'DOS858'; CharSetWidth: 1; CodePage: 858; AllowReverseLookup: true),
152	+	(CharsetID: 17; CharSetName: 'DOS862'; CharSetWidth: 1; CodePage: 862; AllowReverseLookup: true),
153	+	(CharsetID: 18; CharSetName: 'DOS864'; CharSetWidth: 1; CodePage: 864; AllowReverseLookup: true),
154	+	(CharsetID: 19; CharSetName: 'NEXT'; CharSetWidth: 1; CodePage: CP_NONE; AllowReverseLookup: true),
155	+	(CharsetID: 20; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: true),
156	+	(CharsetID: 21; CharSetName: 'ISO8859_1'; CharSetWidth: 1; CodePage: 28591; AllowReverseLookup: true),
157	+	(CharsetID: 22; CharSetName: 'ISO8859_2'; CharSetWidth: 1; CodePage: 28592; AllowReverseLookup: true),
158	+	(CharsetID: 23; CharSetName: 'ISO8859_3'; CharSetWidth: 1; CodePage: 28593; AllowReverseLookup: true),
159	+	(CharsetID: 24; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
160	+	(CharsetID: 25; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
161	+	(CharsetID: 26; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
162	+	(CharsetID: 27; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
163	+	(CharsetID: 28; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
164	+	(CharsetID: 29; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
165	+	(CharsetID: 30; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
166	+	(CharsetID: 31; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
167	+	(CharsetID: 32; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
168	+	(CharsetID: 33; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
169	+	(CharsetID: 34; CharSetName: 'ISO8859_4'; CharSetWidth: 1; CodePage: 28594; AllowReverseLookup: true),
170	+	(CharsetID: 35; CharSetName: 'ISO8859_5'; CharSetWidth: 1; CodePage: 28595; AllowReverseLookup: true),
171	+	(CharsetID: 36; CharSetName: 'ISO8859_6'; CharSetWidth: 1; CodePage: 28596; AllowReverseLookup: true),
172	+	(CharsetID: 37; CharSetName: 'ISO8859_7'; CharSetWidth: 1; CodePage: 28597; AllowReverseLookup: true),
173	+	(CharsetID: 38; CharSetName: 'ISO8859_8'; CharSetWidth: 1; CodePage: 28598; AllowReverseLookup: true),
174	+	(CharsetID: 39; CharSetName: 'ISO8859_9'; CharSetWidth: 1; CodePage: 28599; AllowReverseLookup: true),
175	+	(CharsetID: 40; CharSetName: 'ISO8859_13'; CharSetWidth: 1; CodePage: 28603; AllowReverseLookup: true),
176	+	(CharsetID: 41; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
177	+	(CharsetID: 42; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
178	+	(CharsetID: 43; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
179	+	(CharsetID: 44; CharSetName: 'KSC_5601'; CharSetWidth: 2; CodePage: 949; AllowReverseLookup: true),
180	+	(CharsetID: 45; CharSetName: 'DOS852'; CharSetWidth: 1; CodePage: 852; AllowReverseLookup: true),
181	+	(CharsetID: 46; CharSetName: 'DOS857'; CharSetWidth: 1; CodePage: 857; AllowReverseLookup: true),
182	+	(CharsetID: 47; CharSetName: 'DOS861'; CharSetWidth: 1; CodePage: 861; AllowReverseLookup: true),
183	+	(CharsetID: 48; CharSetName: 'DOS866'; CharSetWidth: 1; CodePage: 866; AllowReverseLookup: true),
184	+	(CharsetID: 49; CharSetName: 'DOS869'; CharSetWidth: 1; CodePage: 869; AllowReverseLookup: true),
185	+	(CharsetID: 50; CharSetName: 'CYRL'; CharSetWidth: 1; CodePage: 1251; AllowReverseLookup: true),
186	+	(CharsetID: 51; CharSetName: 'WIN1250'; CharSetWidth: 1; CodePage: 1250; AllowReverseLookup: true),
187	+	(CharsetID: 52; CharSetName: 'WIN1251'; CharSetWidth: 1; CodePage: 1251; AllowReverseLookup: true),
188	+	(CharsetID: 53; CharSetName: 'WIN1252'; CharSetWidth: 1; CodePage: 1252; AllowReverseLookup: true),
189	+	(CharsetID: 54; CharSetName: 'WIN1253'; CharSetWidth: 1; CodePage: 1253; AllowReverseLookup: true),
190	+	(CharsetID: 55; CharSetName: 'WIN1254'; CharSetWidth: 1; CodePage: 1254; AllowReverseLookup: true),
191	+	(CharsetID: 56; CharSetName: 'BIG_5'; CharSetWidth: 2; CodePage: 950; AllowReverseLookup: true),
192	+	(CharsetID: 57; CharSetName: 'GB_2312'; CharSetWidth: 2; CodePage: 936; AllowReverseLookup: true),
193	+	(CharsetID: 58; CharSetName: 'WIN1255'; CharSetWidth: 1; CodePage: 1255; AllowReverseLookup: true),
194	+	(CharsetID: 59; CharSetName: 'WIN1256'; CharSetWidth: 1; CodePage: 1256; AllowReverseLookup: true),
195	+	(CharsetID: 60; CharSetName: 'WIN1257'; CharSetWidth: 1; CodePage: 1257; AllowReverseLookup: true),
196	+	(CharsetID: 61; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
197	+	(CharsetID: 62; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
198	+	(CharsetID: 63; CharSetName: 'KOI8R'; CharSetWidth: 1; CodePage: 20866; AllowReverseLookup: true),
199	+	(CharsetID: 64; CharSetName: 'KOI8U'; CharSetWidth: 1; CodePage: 21866; AllowReverseLookup: true),
200	+	(CharsetID: 65; CharSetName: 'WIN1258'; CharSetWidth: 1; CodePage: 1258; AllowReverseLookup: true),
201	+	(CharsetID: 66; CharSetName: 'TIS620'; CharSetWidth: 1; CodePage: 874; AllowReverseLookup: true),
202	+	(CharsetID: 67; CharSetName: 'GBK'; CharSetWidth: 2; CodePage: 936; AllowReverseLookup: true),
203	+	(CharsetID: 68; CharSetName: 'CP943C'; CharSetWidth: 2; CodePage: 943; AllowReverseLookup: true),
204	+	(CharsetID: 69; CharSetName: 'GB18030'; CharSetWidth: 4; CodePage: 54936; AllowReverseLookup: true)
205	+	);
206	+
207	+
208	+
209	+
210		{ TFBAttachment }
211
212	<	constructor TFBAttachment.Create(DatabaseName: string; DPB: IDPB;
212	>	constructor TFBAttachment.Create(DatabaseName: AnsiString; DPB: IDPB;
213		RaiseExceptionOnConnectError: boolean);
214		begin
215		inherited Create;
#	Line 120 | Line 217 | begin
217		FSQLDialect := 3;
218		FDatabaseName := DatabaseName;
219		FDPB := DPB;
220	+	SetLength(FUserCharSetMap,0);
221		FRaiseExceptionOnConnectError := RaiseExceptionOnConnectError;
222		end;
223
224	<	function TFBAttachment.GenerateCreateDatabaseSQL(DatabaseName: string;  aDPB: IDPB): string;
225	<	var CreateParams: string;
224	>	function TFBAttachment.GenerateCreateDatabaseSQL(DatabaseName: AnsiString;  aDPB: IDPB): AnsiString;
225	>	var CreateParams: AnsiString;
226		DPBItem: IDPBItem;
227		begin
228		CreateParams := '';
#	Line 133 | Line 231 | begin
231		begin
232		DPBItem :=  aDPB.Find(isc_dpb_user_name);
233		if DPBItem <> nil then
234	<	CreateParams += ' USER ''' + DPBItem.AsString + '''';
234	>	CreateParams := CreateParams + ' USER ''' + DPBItem.AsString + '''';
235
236		DPBItem :=  aDPB.Find(isc_dpb_password);
237		if DPBItem <> nil then
238	<	CreateParams += ' Password ''' + DPBItem.AsString + '''';
238	>	CreateParams := CreateParams + ' Password ''' + DPBItem.AsString + '''';
239
240		DPBItem :=  aDPB.Find(isc_dpb_page_size);
241		if DPBItem <> nil then
242	<	CreateParams += ' PAGE_SIZE ' + DPBItem.AsString;
242	>	CreateParams := CreateParams + ' PAGE_SIZE ' + DPBItem.AsString;
243
244		DPBItem :=  aDPB.Find(isc_dpb_lc_ctype);
245		if DPBItem <> nil then
246	<	CreateParams += ' DEFAULT CHARACTER SET ' + DPBItem.AsString;
246	>	CreateParams := CreateParams + ' DEFAULT CHARACTER SET ' + DPBItem.AsString;
247
248		DPBItem :=  aDPB.Find(isc_dpb_sql_dialect);
249		if DPBItem <> nil then
#	Line 217 | Line 315 | begin
315		Result := TBPB.Create;
316		end;
317
318	<	procedure TFBAttachment.ExecImmediate(TPB: array of byte; sql: string;
318	>	procedure TFBAttachment.ExecImmediate(TPB: array of byte; sql: AnsiString;
319		aSQLDialect: integer);
320		begin
321		ExecImmediate(StartTransaction(TPB,taCommit),sql,aSQLDialect);
322		end;
323
324	<	procedure TFBAttachment.ExecImmediate(transaction: ITransaction; sql: string);
324	>	procedure TFBAttachment.ExecImmediate(transaction: ITransaction; sql: AnsiString);
325		begin
326		ExecImmediate(transaction,sql,FSQLDialect);
327		end;
328
329	<	procedure TFBAttachment.ExecImmediate(TPB: array of byte; sql: string);
329	>	procedure TFBAttachment.ExecImmediate(TPB: array of byte; sql: AnsiString);
330		begin
331		ExecImmediate(StartTransaction(TPB,taCommit),sql,FSQLDialect);
332		end;
333
334	<	function TFBAttachment.ExecuteSQL(TPB: array of byte; sql: string;
334	>	function TFBAttachment.ExecuteSQL(TPB: array of byte; sql: AnsiString;
335		SQLDialect: integer; params: array of const): IResults;
336		begin
337		Result := ExecuteSQL(StartTransaction(TPB,taCommit),sql,FSQLDialect,params);
338		end;
339
340	<	function TFBAttachment.ExecuteSQL(transaction: ITransaction; sql: string;
340	>	function TFBAttachment.ExecuteSQL(transaction: ITransaction; sql: AnsiString;
341		SQLDialect: integer; params: array of const): IResults;
342		begin
343		with Prepare(transaction,sql,SQLDialect) do
#	Line 249 | Line 347 | begin
347		end;
348		end;
349
350	<	function TFBAttachment.ExecuteSQL(TPB: array of byte; sql: string;
350	>	function TFBAttachment.ExecuteSQL(TPB: array of byte; sql: AnsiString;
351		params: array of const): IResults;
352		begin
353		Result := ExecuteSQL(StartTransaction(TPB,taCommit),sql,params);
354		end;
355
356	<	function TFBAttachment.ExecuteSQL(transaction: ITransaction; sql: string;
356	>	function TFBAttachment.ExecuteSQL(transaction: ITransaction; sql: AnsiString;
357		params: array of const): IResults;
358		begin
359		with Prepare(transaction,sql,FSQLDialect) do
#	Line 265 | Line 363 | begin
363		end;
364		end;
365
366	<	function TFBAttachment.OpenCursor(transaction: ITransaction; sql: string;
366	>	function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString;
367		aSQLDialect: integer): IResultSet;
368		begin
369		Result := OpenCursor(transaction,sql,aSQLDialect,[]);
370		end;
371
372	<	function TFBAttachment.OpenCursor(transaction: ITransaction; sql: string;
372	>	function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString;
373		aSQLDialect: integer; params: array of const): IResultSet;
374		var Statement: IStatement;
375		begin
#	Line 281 | Line 379 | begin
379		Result := Statement.OpenCursor;
380		end;
381
382	<	function TFBAttachment.OpenCursor(transaction: ITransaction; sql: string
382	>	function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString
383		): IResultSet;
384		begin
385		Result := OpenCursor(transaction,sql,FSQLDialect,[]);
386		end;
387
388	<	function TFBAttachment.OpenCursor(transaction: ITransaction; sql: string;
388	>	function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString;
389		params: array of const): IResultSet;
390		begin
391		Result := OpenCursor(transaction,sql,FSQLDialect,params);
392		end;
393
394		function TFBAttachment.OpenCursorAtStart(transaction: ITransaction;
395	<	sql: string; aSQLDialect: integer): IResultSet;
395	>	sql: AnsiString; aSQLDialect: integer): IResultSet;
396		begin
397		Result := OpenCursor(transaction,sql,aSQLDialect,[]);
398		Result.FetchNext;
399		end;
400
401		function TFBAttachment.OpenCursorAtStart(transaction: ITransaction;
402	<	sql: string; aSQLDialect: integer; params: array of const): IResultSet;
402	>	sql: AnsiString; aSQLDialect: integer; params: array of const): IResultSet;
403		begin
404		Result := OpenCursor(transaction,sql,aSQLDialect,params);
405		Result.FetchNext;
406		end;
407
408	<	function TFBAttachment.OpenCursorAtStart(transaction: ITransaction; sql: string
408	>	function TFBAttachment.OpenCursorAtStart(transaction: ITransaction; sql: AnsiString
409		): IResultSet;
410		begin
411		Result := OpenCursorAtStart(transaction,sql,FSQLDialect,[]);
412		end;
413
414		function TFBAttachment.OpenCursorAtStart(transaction: ITransaction;
415	<	sql: string; params: array of const): IResultSet;
415	>	sql: AnsiString; params: array of const): IResultSet;
416		begin
417		Result := OpenCursorAtStart(transaction,sql,FSQLDialect,params);
418		end;
419
420	<	function TFBAttachment.OpenCursorAtStart(sql: string): IResultSet;
420	>	function TFBAttachment.OpenCursorAtStart(sql: AnsiString): IResultSet;
421		begin
422		Result := OpenCursorAtStart(sql,[]);
423		end;
424
425	<	function TFBAttachment.OpenCursorAtStart(sql: string;
425	>	function TFBAttachment.OpenCursorAtStart(sql: AnsiString;
426		params: array of const): IResultSet;
427		begin
428		Result := OpenCursorAtStart(StartTransaction([isc_tpb_read,isc_tpb_wait,isc_tpb_concurrency],taCommit),sql,FSQLDialect,params);
429		end;
430
431	<	function TFBAttachment.Prepare(transaction: ITransaction; sql: string
431	>	function TFBAttachment.Prepare(transaction: ITransaction; sql: AnsiString
432		): IStatement;
433		begin
434		Result := Prepare(transaction,sql,FSQLDialect);
435		end;
436
437		function TFBAttachment.PrepareWithNamedParameters(transaction: ITransaction;
438	<	sql: string; GenerateParamNames: boolean): IStatement;
438	>	sql: AnsiString; GenerateParamNames: boolean): IStatement;
439		begin
440		Result := PrepareWithNamedParameters(transaction,sql,FSQLDialect,GenerateParamNames);
441		end;
442
443	<	function TFBAttachment.GetEventHandler(Event: string): IEvents;
443	>	function TFBAttachment.GetEventHandler(Event: AnsiString): IEvents;
444		var S: TStringList;
445		begin
446		S := TStringList.Create;
#	Line 365 | Line 463 | begin
463		Result := OpenBlob(Transaction,Field.GetBlobMetadata, Field.AsQuad,BPB);
464		end;
465
466	+	function TFBAttachment.GetCharsetName(CharSetID: integer): AnsiString;
467	+	var i: integer;
468	+	begin
469	+	Result := '';
470	+	if (CharSetID >= Low(CharSetMap)) and (CharSetID <= High(CharSetMap)) and
471	+	(CharSetMap[CharSetID].CharSetID = CharSetID) then
472	+	begin
473	+	Result := CharSetMap[CharSetID].CharSetName;
474	+	Exit;
475	+	end;
476	+
477	+	for i := 0 to Length(FUserCharSetMap) - 1 do
478	+	if FUserCharSetMap[i].CharSetID = CharSetID then
479	+	begin
480	+	Result := FUserCharSetMap[i].CharSetName;
481	+	Exit;
482	+	end;
483	+	end;
484	+
485	+	function TFBAttachment.CharSetID2CodePage(CharSetID: integer;
486	+	var CodePage: TSystemCodePage): boolean;
487	+	var i: integer;
488	+	begin
489	+	Result := (CharSetID >= Low(CharSetMap)) and (CharSetID <= High(CharSetMap))
490	+	and (CharSetMap[CharSetID].CharSetID = CharSetID);
491	+	if Result then
492	+	begin
493	+	CodePage := CharSetMap[CharSetID].CodePage;
494	+	Result := true;
495	+	Exit;
496	+	end;
497	+
498	+	for i := 0 to Length(FUserCharSetMap) - 1 do
499	+	if FUserCharSetMap[i].CharSetID = CharSetID then
500	+	begin
501	+	CodePage := FUserCharSetMap[i].CodePage;
502	+	Result := true;
503	+	Exit;
504	+	end;
505	+	end;
506	+
507	+	function TFBAttachment.CodePage2CharSetID(CodePage: TSystemCodePage;
508	+	var CharSetID: integer): boolean;
509	+	var i: integer;
510	+	begin
511	+	Result := false;
512	+	for i := Low(CharSetMap) to High(CharSetMap) do
513	+	if (CharSetMap[i].AllowReverseLookup) and (CharSetMap[i].CodePage = CodePage) then
514	+	begin
515	+	CharSetID := CharSetMap[i].CharSetID;
516	+	Result := true;
517	+	Exit;
518	+	end;
519	+
520	+	for i := 0 to Length(FUserCharSetMap) - 1 do
521	+	if (FUserCharSetMap[i].AllowReverseLookup) and (FUserCharSetMap[i].CodePage = CodePage) then
522	+	begin
523	+	CharSetID := FUserCharSetMap[i].CharSetID;
524	+	Result := true;
525	+	Exit;
526	+	end;
527	+	end;
528	+
529	+	function TFBAttachment.CharSetName2CharSetID(CharSetName: AnsiString;
530	+	var CharSetID: integer): boolean;
531	+	var i: integer;
532	+	begin
533	+	Result := false;
534	+	for i := Low(CharSetMap) to High(CharSetMap) do
535	+	if AnsiCompareStr(CharSetMap[i].CharSetName, CharSetName) = 0 then
536	+	begin
537	+	CharSetID := CharSetMap[i].CharSetID;
538	+	Result := true;
539	+	Exit;
540	+	end;
541	+
542	+	for i := 0 to Length(FUserCharSetMap) - 1 do
543	+	if AnsiCompareStr(FUserCharSetMap[i].CharSetName, CharSetName) = 0 then
544	+	begin
545	+	CharSetID := FUserCharSetMap[i].CharSetID;
546	+	Result := true;
547	+	Exit;
548	+	end;
549	+	end;
550	+
551	+	function TFBAttachment.CharSetWidth(CharSetID: integer; var Width: integer
552	+	): boolean;
553	+	var i: integer;
554	+	begin
555	+	Result := (CharSetID >= Low(CharSetMap)) and (CharSetID <= High(CharSetMap))
556	+	and (CharSetMap[CharSetID].CharSetID = CharSetID);
557	+	if Result then
558	+	begin
559	+	Width := CharSetMap[CharSetID].CharSetWidth;
560	+	Result := true;
561	+	Exit;
562	+	end;
563	+
564	+	for i := 0 to Length(FUserCharSetMap) - 1 do
565	+	if FUserCharSetMap[i].CharSetID = CharSetID then
566	+	begin
567	+	Width := FUserCharSetMap[i].CharSetWidth;
568	+	Result := true;
569	+	Exit;
570	+	end;
571	+	end;
572	+
573	+	const
574	+	sqlLookupCharSet = 'Select RDB$CHARACTER_SET_ID, RDB$BYTES_PER_CHARACTER From RDB$CHARACTER_SETS '+
575	+	'Where RDB$SYSTEM_FLAG = 0 and RDB$CHARACTER_SET_NAME = UPPER(?)';
576	+
577	+	procedure TFBAttachment.RegisterCharSet(CharSetName: AnsiString;
578	+	CodePage: TSystemCodePage; AllowReverseLookup: boolean; out CharSetID: integer
579	+	);
580	+	var CharSets: IResultSet;
581	+	idx: integer;
582	+	begin
583	+	if CharSetName2CharSetID(CharSetName,CharSetID) then
584	+	IBError(ibxeCharacterSetExists,[CharSetName]);
585	+
586	+	CharSets := OpenCursorAtStart(sqlLookupCharSet,[CharSetName]);
587	+	if CharSets.IsEof then
588	+	IBError(ibxeUnknownUserCharSet,[CharSetName]);
589	+
590	+	idx := Length(FUserCharSetMap);
591	+	SetLength(FUserCharSetMap,idx+1);
592	+	FUserCharSetMap[idx].AllowReverseLookup := AllowReverseLookup;
593	+	FUserCharSetMap[idx].CharSetID := CharSets[0].AsInteger;
594	+	FUserCharSetMap[idx].CharSetName := AnsiUpperCase(CharSetName);
595	+	FUserCharSetMap[idx].CharSetWidth := CharSets[1].AsInteger;
596	+	FUserCharSetMap[idx].CodePage := CodePage;
597	+	CharSetID := CharSets[0].AsInteger;
598	+	end;
599	+
600		end.
601

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