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root/public/ibx/trunk/runtime/IBDatabase.pas
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Comparing ibx/trunk/runtime/IBDatabase.pas (file contents):
Revision 5 by tony, Fri Feb 18 16:26:16 2011 UTC vs.
Revision 143 by tony, Fri Feb 23 12:11:21 2018 UTC

# Line 24 | Line 24
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 - 2018                                               }
31 + {                                                                        }
32   {************************************************************************}
33  
34   unit IBDatabase;
35  
36   {$Mode Delphi}
37  
38 + {$codepage UTF8}
39 +
40   interface
41  
42   uses
43 < {$IFDEF LINUX }
37 <  unix,
38 < {$ELSE}
39 < {$DEFINE HAS_SQLMONITOR}
43 > {$IFDEF WINDOWS }
44    Windows,
45 + {$ELSE}
46 +  unix,
47   {$ENDIF}
48 <  Dialogs, Controls, StdCtrls, SysUtils, Classes, Forms, ExtCtrls, IBHeader, IBExternals, DB,
43 <  IB, DBLoginDlg;
48 >  SysUtils, Classes, FPTimer, IBExternals, DB, IB, CustApp, IBTypes;
49  
50   const
51    DPBPrefix = 'isc_dpb_';
# Line 111 | Line 116 | const
116      'set_db_readonly',
117      'set_db_sql_dialect',
118      'gfix_attach',
119 <    'gstat_attach'
120 <  );
119 >    'gstat_attach',
120 >    'set_db_charset',
121 >    'gsec_attach',
122 >    'address_path' ,
123 >    'process_id',
124 >    'no_db_triggers',
125 >    'trusted_auth',
126 >    'process_name',
127 >    'trusted_role',
128 >    'org_filename',
129 >    'utf8_ilename',
130 >    'ext_call_depth',
131 >    'auth_block',
132 >    'client_version',
133 >    'remote_protocol',
134 >    'host_name',
135 >    'os_user',
136 >    'specific_auth_data',
137 >    'auth_plugin_list',
138 >    'auth_plugin_name',
139 >    'config',
140 >    'nolinger',
141 >    'reset_icu',
142 >    'map_attach'
143 >    );
144  
145    TPBPrefix = 'isc_tpb_';
146    TPBConstantNames: array[1..isc_tpb_last_tpb_constant] of string = (
# Line 135 | Line 163 | const
163      'rec_version',
164      'no_rec_version',
165      'restart_requests',
166 <    'no_auto_undo'
166 >    'no_auto_undo',
167 >    'lock_timeout'
168    );
169  
170   type
# Line 151 | Line 180 | type
180    { TIBDatabase }
181    TIBDataBase = class(TCustomConnection)
182    private
183 +    FAttachment: IAttachment;
184 +    FCreateDatabase: boolean;
185 +    FCreateIfNotExists: boolean;
186 +    FAllowStreamedConnected: boolean;
187      FHiddenPassword: string;
188 <    FIBLoaded: Boolean;
188 >    FOnCreateDatabase: TNotifyEvent;
189      FOnLogin: TIBDatabaseLoginEvent;
190 +    FSQLHourGlass: Boolean;
191      FTraceFlags: TTraceFlags;
158    FDBSQLDialect: Integer;
192      FSQLDialect: Integer;
193      FOnDialectDowngradeWarning: TNotifyEvent;
161    FCanTimeout: Boolean;
194      FSQLObjects: TList;
195      FTransactions: TList;
196      FDBName: TIBFileName;
197      FDBParams: TStrings;
198      FDBParamsChanged: Boolean;
167    FDPB: PChar;
168    FDPBLength: Short;
169    FHandle: TISC_DB_HANDLE;
170    FHandleIsShared: Boolean;
199      FOnIdleTimer: TNotifyEvent;
200      FDefaultTransaction: TIBTransaction;
201      FInternalTransaction: TIBTransaction;
202 <    FStreamedConnected: Boolean;
175 <    FTimer: TTimer;
202 >    FTimer: TFPTimer;
203      FUserNames: TStringList;
204      FDataSets: TList;
205 +    FLoginCalled: boolean;
206 +    FUseDefaultSystemCodePage: boolean;
207      procedure EnsureInactive;
208 +    function GetAuthenticationMethod: string;
209      function GetDBSQLDialect: Integer;
210 <    function GetSQLDialect: Integer;
210 >    function GetDefaultCharSetID: integer;
211 >    function GetDefaultCharSetName: AnsiString;
212 >    function GetDefaultCodePage: TSystemCodePage;
213 >    function GetRemoteProtocol: string;
214      procedure SetSQLDialect(const Value: Integer);
215      procedure ValidateClientSQLDialect;
216      procedure DBParamsChange(Sender: TObject);
217      procedure DBParamsChanging(Sender: TObject);
218      function GetSQLObject(Index: Integer): TIBBase;
219      function GetSQLObjectCount: Integer;
187    function GetDBParamByDPB(const Idx: Integer): String;
220      function GetIdleTimer: Integer;
221      function GetTransaction(Index: Integer): TIBTransaction;
222      function GetTransactionCount: Integer;
223 <    function Login: Boolean;
223 >    function Login(var aDatabaseName: string): Boolean;
224      procedure SetDatabaseName(const Value: TIBFileName);
225      procedure SetDBParamByDPB(const Idx: Integer; Value: String);
226      procedure SetDBParams(Value: TStrings);
# Line 205 | Line 237 | type
237      procedure DoConnect; override;
238      procedure DoDisconnect; override;
239      function GetConnected: Boolean; override;
240 <    procedure Loaded; override;
240 >    procedure CheckStreamConnect;
241 >    procedure HandleException(Sender: TObject);
242      procedure Notification( AComponent: TComponent; Operation: TOperation); override;
243      function GetDataset(Index : longint) : TDataset; override;
244      function GetDataSetCount : Longint; override;
245 <
245 >    procedure ReadState(Reader: TReader); override;
246 >    procedure SetConnected (Value : boolean); override;
247    public
248      constructor Create(AOwner: TComponent); override;
249      destructor Destroy; override;
# Line 217 | Line 251 | type
251      procedure CloseDataSets;
252      procedure CheckActive;
253      procedure CheckInactive;
254 <    procedure CreateDatabase;
254 >    procedure CreateDatabase; overload;
255 >    procedure CreateDatabase(createDatabaseSQL: string); overload;
256      procedure DropDatabase;
257      procedure ForceClose;
258      procedure GetFieldNames(const TableName: string; List: TStrings);
# Line 225 | Line 260 | type
260      function IndexOfDBConst(st: String): Integer;
261      function TestConnected: Boolean;
262      procedure CheckDatabaseName;
228    function Call(ErrCode: ISC_STATUS; RaiseError: Boolean): ISC_STATUS;
263      function AddTransaction(TR: TIBTransaction): Integer;
264      function FindTransaction(TR: TIBTransaction): Integer;
265      function FindDefaultTransaction(): TIBTransaction;
266      procedure RemoveTransaction(Idx: Integer);
267      procedure RemoveTransactions;
234    procedure SetHandle(Value: TISC_DB_HANDLE);
268  
269 <    property Handle: TISC_DB_HANDLE read FHandle;
269 >    property Attachment: IAttachment read FAttachment;
270 >    property DBSQLDialect : Integer read GetDBSQLDialect;
271      property IsReadOnly: Boolean read GetIsReadOnly;
238    property DBParamByDPB[const Idx: Integer]: String read GetDBParamByDPB
239                                                      write SetDBParamByDPB;
272      property SQLObjectCount: Integer read GetSQLObjectCount;
273      property SQLObjects[Index: Integer]: TIBBase read GetSQLObject;
242    property HandleIsShared: Boolean read FHandleIsShared;
274      property TransactionCount: Integer read GetTransactionCount;
275      property Transactions[Index: Integer]: TIBTransaction read GetTransaction;
276      property InternalTransaction: TIBTransaction read FInternalTransaction;
277 +    property DefaultCharSetName: AnsiString read GetDefaultCharSetName;
278 +    property DefaultCharSetID: integer read GetDefaultCharSetID;
279 +    property DefaultCodePage: TSystemCodePage read GetDefaultCodePage;
280 +    property AuthenticationMethod: string read GetAuthenticationMethod;
281 +    property RemoteProtocol: string read GetRemoteProtocol;
282  
283    published
284      property Connected;
285 <    property StreamedConnected;
285 >    property CreateIfNotExists: boolean read FCreateIfNotExists write FCreateIfNotExists;
286 >    property AllowStreamedConnected: boolean read FAllowStreamedConnected
287 >             write FAllowStreamedConnected;
288      property DatabaseName: TIBFileName read FDBName write SetDatabaseName;
289      property Params: TStrings read FDBParams write SetDBParams;
290      property LoginPrompt default True;
291      property DefaultTransaction: TIBTransaction read FDefaultTransaction
292                                                   write SetDefaultTransaction;
293      property IdleTimer: Integer read GetIdleTimer write SetIdleTimer;
294 <    property SQLDialect : Integer read GetSQLDialect write SetSQLDialect default 3;
295 <    property DBSQLDialect : Integer read FDBSQLDialect;
294 >    property SQLDialect : Integer read FSQLDialect write SetSQLDialect default 3;
295 >    property SQLHourGlass: Boolean read FSQLHourGlass write FSQLHourGlass default true;
296      property TraceFlags: TTraceFlags read FTraceFlags write FTraceFlags;
297 +    property UseDefaultSystemCodePage: boolean read FUseDefaultSystemCodePage
298 +                                               write FUseDefaultSystemCodePage;
299      property AfterConnect;
300      property AfterDisconnect;
301      property BeforeConnect;
302      property BeforeDisconnect;
303 +    property OnCreateDatabase: TNotifyEvent read FOnCreateDatabase write FOnCreateDatabase;
304      property OnLogin: TIBDatabaseLoginEvent read FOnLogin write FOnLogin;
305      property OnIdleTimer: TNotifyEvent read FOnIdleTimer write FOnIdleTimer;
306      property OnDialectDowngradeWarning: TNotifyEvent read FOnDialectDowngradeWarning write FOnDialectDowngradeWarning;
307    end;
308  
309 <  { TIBTransaction }
309 >  TDefaultEndAction = TARollback..TACommit;
310  
311 <  TTransactionAction         = (TARollback, TACommit, TARollbackRetaining, TACommitRetaining);
311 >  { TIBTransaction }
312  
313    TIBTransaction = class(TComponent)
314    private
315 <    FIBLoaded: Boolean;
316 <    FCanTimeout         : Boolean;
315 >    FTransactionIntf: ITransaction;
316 >    FAfterDelete: TNotifyEvent;
317 >    FAfterEdit: TNotifyEvent;
318 >    FAfterExecQuery: TNotifyEvent;
319 >    FAfterInsert: TNotifyEvent;
320 >    FAfterPost: TNotifyEvent;
321 >    FAfterTransactionEnd: TNotifyEvent;
322 >    FBeforeTransactionEnd: TNotifyEvent;
323      FDatabases          : TList;
324 +    FOnStartTransaction: TNotifyEvent;
325      FSQLObjects         : TList;
326      FDefaultDatabase    : TIBDatabase;
279    FHandle             : TISC_TR_HANDLE;
280    FHandleIsShared     : Boolean;
327      FOnIdleTimer          : TNotifyEvent;
328      FStreamedActive     : Boolean;
329 <    FTPB                : PChar;
330 <    FTPBLength          : Short;
331 <    FTimer              : TTimer;
286 <    FDefaultAction      : TTransactionAction;
329 >    FTPB                : ITPB;
330 >    FTimer              : TFPTimer;
331 >    FDefaultAction      : TDefaultEndAction;
332      FTRParams           : TStrings;
333      FTRParamsChanged    : Boolean;
334 +    FInEndTransaction   : boolean;
335 +    FEndAction          : TTransactionAction;
336 +    procedure DoBeforeTransactionEnd;
337 +    procedure DoAfterTransactionEnd;
338 +    procedure DoOnStartTransaction;
339 +    procedure DoAfterExecQuery(Sender: TObject);
340 +    procedure DoAfterEdit(Sender: TObject);
341 +    procedure DoAfterDelete(Sender: TObject);
342 +    procedure DoAfterInsert(Sender: TObject);
343 +    procedure DoAfterPost(Sender: TObject);
344      procedure EnsureNotInTransaction;
345      procedure EndTransaction(Action: TTransactionAction; Force: Boolean);
346      function GetDatabase(Index: Integer): TIBDatabase;
# Line 296 | Line 351 | type
351      function GetIdleTimer: Integer;
352      procedure BeforeDatabaseDisconnect(DB: TIBDatabase);
353      procedure SetActive(Value: Boolean);
299    procedure SetDefaultAction(Value: TTransactionAction);
354      procedure SetDefaultDatabase(Value: TIBDatabase);
355      procedure SetIdleTimer(Value: Integer);
356      procedure SetTRParams(Value: TStrings);
# Line 309 | Line 363 | type
363  
364    protected
365      procedure Loaded; override;
312    procedure SetHandle(Value: TISC_TR_HANDLE);
366      procedure Notification( AComponent: TComponent; Operation: TOperation); override;
367  
368    public
369      constructor Create(AOwner: TComponent); override;
370      destructor Destroy; override;
318    function Call(ErrCode: ISC_STATUS; RaiseError: Boolean): ISC_STATUS;
371      procedure Commit;
372      procedure CommitRetaining;
373      procedure Rollback;
# Line 327 | Line 379 | type
379      function AddDatabase(db: TIBDatabase): Integer;
380      function FindDatabase(db: TIBDatabase): Integer;
381      function FindDefaultDatabase: TIBDatabase;
382 +    function GetEndAction: TTransactionAction;
383      procedure RemoveDatabase(Idx: Integer);
384      procedure RemoveDatabases;
385      procedure CheckDatabasesInList;
# Line 335 | Line 388 | type
388      property Databases[Index: Integer]: TIBDatabase read GetDatabase;
389      property SQLObjectCount: Integer read GetSQLObjectCount;
390      property SQLObjects[Index: Integer]: TIBBase read GetSQLObject;
338    property Handle: TISC_TR_HANDLE read FHandle;
339    property HandleIsShared: Boolean read FHandleIsShared;
391      property InTransaction: Boolean read GetInTransaction;
392 <    property TPB: PChar read FTPB;
393 <    property TPBLength: Short read FTPBLength;
392 >    property TransactionIntf: ITransaction read FTransactionIntf;
393 >    property TPB: ITPB read FTPB;
394    published
395      property Active: Boolean read GetInTransaction write SetActive;
396      property DefaultDatabase: TIBDatabase read FDefaultDatabase
397                                             write SetDefaultDatabase;
398      property IdleTimer: Integer read GetIdleTimer write SetIdleTimer default 0;
399 <    property DefaultAction: TTransactionAction read FDefaultAction write SetDefaultAction default taCommit;
399 >    property DefaultAction: TDefaultEndAction read FDefaultAction write FDefaultAction default taCommit;
400      property Params: TStrings read FTRParams write SetTRParams;
401      property OnIdleTimer: TNotifyEvent read FOnIdleTimer write FOnIdleTimer;
402 <  end;
402 >    property BeforeTransactionEnd: TNotifyEvent read FBeforeTransactionEnd
403 >                                             write FBeforeTransactionEnd;
404 >    property AfterTransactionEnd: TNotifyEvent read FAfterTransactionEnd
405 >                                            write FAfterTransactionEnd;
406 >    property OnStartTransaction: TNotifyEvent read FOnStartTransaction
407 >                                              write FOnStartTransaction;
408 >    property AfterExecQuery: TNotifyEvent read FAfterExecQuery
409 >                                              write FAfterExecQuery;
410 >    property AfterEdit: TNotifyEvent read FAfterEdit write FAfterEdit;
411 >    property AfterDelete: TNotifyEvent read FAfterDelete write FAfterDelete;
412 >    property AfterInsert: TNotifyEvent read FAfterInsert write FAfterInsert;
413 >    property AfterPost: TNotifyEvent read FAfterPost write FAfterPost;
414 >  end;
415 >
416 >  TTransactionEndEvent = procedure(Sender:TObject; Action: TTransactionAction) of object;
417 >  TBeforeDatabaseConnectEvent = procedure (Sender: TObject; DBParams: TStrings;
418 >                              var DBName: string) of object;
419  
420    { TIBBase }
421  
# Line 357 | Line 424 | type
424      connections. }
425    TIBBase = class(TObject)
426    protected
427 +    FBeforeDatabaseConnect: TBeforeDatabaseConnectEvent;
428      FDatabase: TIBDatabase;
429      FIndexInDatabase: Integer;
430      FTransaction: TIBTransaction;
# Line 364 | Line 432 | type
432      FOwner: TObject;
433      FBeforeDatabaseDisconnect: TNotifyEvent;
434      FAfterDatabaseDisconnect: TNotifyEvent;
435 +    FAfterDatabaseConnect: TNotifyEvent;
436      FOnDatabaseFree: TNotifyEvent;
437 <    FBeforeTransactionEnd: TNotifyEvent;
437 >    FBeforeTransactionEnd: TTransactionEndEvent;
438      FAfterTransactionEnd: TNotifyEvent;
439      FOnTransactionFree: TNotifyEvent;
440  
441 +    procedure DoBeforeDatabaseConnect(DBParams: TStrings;
442 +                              var DBName: string); virtual;
443 +    procedure DoAfterDatabaseConnect; virtual;
444      procedure DoBeforeDatabaseDisconnect; virtual;
445      procedure DoAfterDatabaseDisconnect; virtual;
446      procedure DoDatabaseFree; virtual;
447 <    procedure DoBeforeTransactionEnd; virtual;
447 >    procedure DoBeforeTransactionEnd(Action: TTransactionAction); virtual;
448      procedure DoAfterTransactionEnd; virtual;
449      procedure DoTransactionFree; virtual;
378    function GetDBHandle: PISC_DB_HANDLE; virtual;
379    function GetTRHandle: PISC_TR_HANDLE; virtual;
450      procedure SetDatabase(Value: TIBDatabase); virtual;
451      procedure SetTransaction(Value: TIBTransaction); virtual;
452    public
# Line 384 | Line 454 | type
454      destructor Destroy; override;
455      procedure CheckDatabase; virtual;
456      procedure CheckTransaction; virtual;
457 +    procedure DoAfterExecQuery(Sender: TObject); virtual;
458 +    procedure DoAfterEdit(Sender: TObject); virtual;
459 +    procedure DoAfterDelete(Sender: TObject); virtual;
460 +    procedure DoAfterInsert(Sender: TObject); virtual;
461 +    procedure DoAfterPost(Sender: TObject); virtual;
462 +    procedure HandleException(Sender: TObject);
463 +    procedure SetCursor;
464 +    procedure RestoreCursor;
465    public
466 +    property BeforeDatabaseConnect: TBeforeDatabaseConnectEvent read FBeforeDatabaseConnect
467 +                                                 write FBeforeDatabaseConnect;
468 +    property AfterDatabaseConnect: TNotifyEvent read FAfterDatabaseConnect
469 +                                                write FAfterDatabaseConnect;
470      property BeforeDatabaseDisconnect: TNotifyEvent read FBeforeDatabaseDisconnect
471                                                     write FBeforeDatabaseDisconnect;
472      property AfterDatabaseDisconnect: TNotifyEvent read FAfterDatabaseDisconnect
473                                                    write FAfterDatabaseDisconnect;
474      property OnDatabaseFree: TNotifyEvent read FOnDatabaseFree write FOnDatabaseFree;
475 <    property BeforeTransactionEnd: TNotifyEvent read FBeforeTransactionEnd write FBeforeTransactionEnd;
475 >    property BeforeTransactionEnd: TTransactionEndEvent read FBeforeTransactionEnd write FBeforeTransactionEnd;
476      property AfterTransactionEnd: TNotifyEvent read FAfterTransactionEnd write FAfterTransactionEnd;
477      property OnTransactionFree: TNotifyEvent read FOnTransactionFree write FOnTransactionFree;
478      property Database: TIBDatabase read FDatabase
479                                      write SetDatabase;
398    property DBHandle: PISC_DB_HANDLE read GetDBHandle;
480      property Owner: TObject read FOwner;
400    property TRHandle: PISC_TR_HANDLE read GetTRHandle;
481      property Transaction: TIBTransaction read FTransaction
482                                            write SetTransaction;
483    end;
484  
485 < procedure GenerateDPB(sl: TStrings; var DPB: string; var DPBLength: Short);
486 < procedure GenerateTPB(sl: TStrings; var TPB: string; var TPBLength: Short);
485 > function GenerateDPB(sl: TStrings): IDPB;
486 > function GenerateTPB(sl: TStrings): ITPB;
487  
488  
489   implementation
490  
491 < uses IBIntf,{$IFDEF HAS_SQLMONITOR}IBSQLMonitor,{$ENDIF} IBCustomDataSet, IBDatabaseInfo, IBSQL, IBUtils, typInfo;
491 > uses  IBSQLMonitor, IBCustomDataSet, IBDatabaseInfo, IBSQL, IBUtils,
492 >     typInfo, FBMessages, IBErrorCodes {$IFDEF WINDOWS}, Windirs {$ENDIF};
493  
494   { TIBDatabase }
495  
496 < constructor TIBDatabase.Create(AOwner: TComponent);
496 > constructor TIBDataBase.Create(AOwner: TComponent);
497   begin
498    inherited Create(AOwner);
418  FIBLoaded := False;
419  CheckIBLoaded;
420  FIBLoaded := True;
499    LoginPrompt := True;
500    FSQLObjects := TList.Create;
501    FTransactions := TList.Create;
502    FDBName := '';
503    FDBParams := TStringList.Create;
504 +  FSQLHourGlass := true;
505 +  if (AOwner <> nil) and
506 +     (AOwner is TCustomApplication) and
507 +     TCustomApplication(AOWner).ConsoleApplication then
508 +    LoginPrompt := false;
509    FDBParamsChanged := True;
510    TStringList(FDBParams).OnChange := DBParamsChange;
511    TStringList(FDBParams).OnChanging := DBParamsChanging;
429  FDPB := nil;
430  FHandle := nil;
512    FUserNames := nil;
513    FInternalTransaction := TIBTransaction.Create(self);
514    FInternalTransaction.DefaultDatabase := Self;
515 <  FTimer := TTimer.Create(Self);
515 >  FTimer := TFPTimer.Create(Self);
516    FTimer.Enabled := False;
517    FTimer.Interval := 0;
518    FTimer.OnTimer := TimeoutConnection;
438  FDBSQLDialect := 1;
519    FSQLDialect := 3;
520    FTraceFlags := [];
521    FDataSets := TList.Create;
522 +  CheckStreamConnect;
523   end;
524  
525 < destructor TIBDatabase.Destroy;
525 > destructor TIBDataBase.Destroy;
526   var
527    i: Integer;
528   begin
529 <  if FIBLoaded then
530 <  begin
531 <    IdleTimer := 0;
532 <    if FHandle <> nil then
533 <      ForceClose;
534 <    for i := 0 to FSQLObjects.Count - 1 do
535 <      if FSQLObjects[i] <> nil then
536 <        SQLObjects[i].DoDatabaseFree;
537 <    RemoveSQLObjects;
538 <    RemoveTransactions;
539 <    FInternalTransaction.Free;
540 <    FreeMem(FDPB);
541 <    FDPB := nil;
461 <    FDBParams.Free;
462 <    FSQLObjects.Free;
463 <    FUserNames.Free;
464 <    FTransactions.Free;
465 <  end;
529 >  IdleTimer := 0;
530 >  if FAttachment <> nil then
531 >    ForceClose;
532 >  for i := 0 to FSQLObjects.Count - 1 do
533 >    if FSQLObjects[i] <> nil then
534 >      SQLObjects[i].DoDatabaseFree;
535 >  RemoveSQLObjects;
536 >  RemoveTransactions;
537 >  FInternalTransaction.Free;
538 >  FDBParams.Free;
539 >  FSQLObjects.Free;
540 >  FUserNames.Free;
541 >  FTransactions.Free;
542    FDataSets.Free;
543    inherited Destroy;
544   end;
545  
546 < function TIBDatabase.Call(ErrCode: ISC_STATUS;
471 <  RaiseError: Boolean): ISC_STATUS;
472 < begin
473 <  result := ErrCode;
474 <  FCanTimeout := False;
475 <  if RaiseError and (ErrCode > 0) then
476 <    IBDataBaseError;
477 < end;
478 <
479 < procedure TIBDatabase.CheckActive;
546 > procedure TIBDataBase.CheckActive;
547   begin
548    if StreamedConnected and (not Connected) then
549      Loaded;
550 <  if FHandle = nil then
550 >  if FAttachment = nil then
551      IBError(ibxeDatabaseClosed, [nil]);
552   end;
553  
554 < procedure TIBDatabase.EnsureInactive;
554 > procedure TIBDataBase.EnsureInactive;
555   begin
556    if csDesigning in ComponentState then
557    begin
558 <    if FHandle <> nil then
558 >    if FAttachment <> nil then
559        Close;
560    end
561   end;
562  
563 < procedure TIBDatabase.CheckInactive;
563 > function TIBDataBase.GetAuthenticationMethod: string;
564 > begin
565 >  CheckActive;
566 >  Result := Attachment.GetAuthenticationMethod;
567 > end;
568 >
569 > procedure TIBDataBase.CheckInactive;
570   begin
571 <  if FHandle <> nil then
571 >  if FAttachment <> nil then
572      IBError(ibxeDatabaseOpen, [nil]);
573   end;
574  
575 < procedure TIBDatabase.CheckDatabaseName;
575 > procedure TIBDataBase.CheckDatabaseName;
576   begin
577 <  if (FDBName = '') then
577 >  if (Trim(FDBName) = '') then
578      IBError(ibxeDatabaseNameMissing, [nil]);
579   end;
580  
581 < function TIBDatabase.AddSQLObject(ds: TIBBase): Integer;
581 > function TIBDataBase.AddSQLObject(ds: TIBBase): Integer;
582   begin
583    result := 0;
584    if (ds.Owner is TIBCustomDataSet) then
585 <  {$IFDEF LINUX}
513 <      FDataSets.Add(TDataSet(ds.Owner));
514 <  {$ELSE}
515 <      RegisterClient(TDataSet(ds.Owner));
516 <  {$ENDIF}
585 >    FDataSets.Add(ds.Owner);
586    while (result < FSQLObjects.Count) and (FSQLObjects[result] <> nil) do
587      Inc(result);
588    if (result = FSQLObjects.Count) then
# Line 522 | Line 591 | begin
591      FSQLObjects[result] := ds;
592   end;
593  
594 < function TIBDatabase.AddTransaction(TR: TIBTransaction): Integer;
594 > function TIBDataBase.AddTransaction(TR: TIBTransaction): Integer;
595   begin
596    result := FindTransaction(TR);
597    if result <> -1 then
# Line 539 | Line 608 | begin
608      FTransactions[result] := TR;
609   end;
610  
611 < procedure TIBDatabase.DoDisconnect;
611 > procedure TIBDataBase.DoDisconnect;
612   begin
613    if Connected then
614      InternalClose(False);
546  FDBSQLDialect := 1;
615   end;
616  
617 < procedure TIBDatabase.CreateDatabase;
550 < var
551 <  tr_handle: TISC_TR_HANDLE;
617 >  procedure TIBDataBase.CreateDatabase;
618   begin
619    CheckInactive;
620 <  tr_handle := nil;
621 <  Call(
622 <    isc_dsql_execute_immediate(StatusVector, @FHandle, @tr_handle, 0,
557 <                               PChar('CREATE DATABASE ''' + FDBName + ''' ' + {do not localize}
558 <                               Params.Text), SQLDialect, nil),
559 <    True);
620 >  CheckDatabaseName;
621 >  FCreateDatabase := true;
622 >  Connected := true;
623   end;
624  
625 < procedure TIBDatabase.DropDatabase;
625 > procedure TIBDataBase.CreateDatabase(createDatabaseSQL: string);
626 > begin
627 >  CheckInactive;
628 >  FAttachment := FirebirdAPI.CreateDatabase(createDatabaseSQL,SQLDialect);
629 >  FDBName := Attachment.GetConnectString;
630 >  if assigned(FOnCreateDatabase) and (FAttachment <> nil) then
631 >    OnCreateDatabase(self);
632 > end;
633 >
634 > procedure TIBDataBase.DropDatabase;
635   begin
636    CheckActive;
637 <  Call(isc_drop_database(StatusVector, @FHandle), True);
637 >  FAttachment.DropDatabase;
638 >  FAttachment := nil;
639   end;
640  
641 < procedure TIBDatabase.DBParamsChange(Sender: TObject);
641 > procedure TIBDataBase.DBParamsChange(Sender: TObject);
642   begin
643    FDBParamsChanged := True;
644   end;
645  
646 < procedure TIBDatabase.DBParamsChanging(Sender: TObject);
646 > procedure TIBDataBase.DBParamsChanging(Sender: TObject);
647   begin
648    EnsureInactive;
649    CheckInactive;
650   end;
651  
652 < function TIBDatabase.FindTransaction(TR: TIBTransaction): Integer;
652 > function TIBDataBase.FindTransaction(TR: TIBTransaction): Integer;
653   var
654    i: Integer;
655   begin
# Line 589 | Line 662 | begin
662      end;
663   end;
664  
665 < function TIBDatabase.FindDefaultTransaction(): TIBTransaction;
665 >  function TIBDataBase.FindDefaultTransaction(): TIBTransaction;
666   var
667    i: Integer;
668   begin
# Line 607 | Line 680 | begin
680    end;
681   end;
682  
683 < procedure TIBDatabase.ForceClose;
683 > procedure TIBDataBase.ForceClose;
684   begin
685    if Connected then
686      InternalClose(True);
687   end;
688  
689 < function TIBDatabase.GetConnected: Boolean;
689 > function TIBDataBase.GetConnected: Boolean;
690   begin
691 <  result := FHandle <> nil;
691 >  result := (FAttachment <> nil) and FAttachment.IsConnected;
692   end;
693  
694 < function TIBDatabase.GetSQLObject(Index: Integer): TIBBase;
694 > function TIBDataBase.GetSQLObject(Index: Integer): TIBBase;
695   begin
696    result := FSQLObjects[Index];
697   end;
698  
699 < function TIBDatabase.GetSQLObjectCount: Integer;
699 > function TIBDataBase.GetSQLObjectCount: Integer;
700   var
701    i: Integer;
702   begin
# Line 632 | Line 705 | begin
705      Inc(result);
706   end;
707  
708 < function TIBDatabase.GetDBParamByDPB(const Idx: Integer): String;
636 < var
637 <  ConstIdx, EqualsIdx: Integer;
638 < begin
639 <  if (Idx > 0) and (Idx <= isc_dpb_last_dpb_constant) then
640 <  begin
641 <    ConstIdx := IndexOfDBConst(DPBConstantNames[Idx]);
642 <    if ConstIdx = -1 then
643 <      result := ''
644 <    else
645 <    begin
646 <      result := Params[ConstIdx];
647 <      EqualsIdx := Pos('=', result); {mbcs ok}
648 <      if EqualsIdx = 0 then
649 <        result := ''
650 <      else
651 <        result := Copy(result, EqualsIdx + 1, Length(result));
652 <    end;
653 <  end
654 <  else
655 <    result := '';
656 < end;
657 <
658 < function TIBDatabase.GetIdleTimer: Integer;
708 > function TIBDataBase.GetIdleTimer: Integer;
709   begin
710    result := FTimer.Interval;
711   end;
712  
713 < function TIBDatabase.GetTransaction(Index: Integer): TIBTransaction;
713 > function TIBDataBase.GetTransaction(Index: Integer): TIBTransaction;
714   begin
715    result := FTransactions[Index];
716   end;
717  
718 < function TIBDatabase.GetTransactionCount: Integer;
718 > function TIBDataBase.GetTransactionCount: Integer;
719   var
720    i: Integer;
721   begin
# Line 675 | Line 725 | begin
725        Inc(result);
726   end;
727  
728 < function TIBDatabase.IndexOfDBConst(st: String): Integer;
728 > function TIBDataBase.IndexOfDBConst(st: String): Integer;
729   var
730    i, pos_of_str: Integer;
731   begin
# Line 691 | Line 741 | begin
741    end;
742   end;
743  
744 < procedure TIBDatabase.InternalClose(Force: Boolean);
744 > procedure TIBDataBase.InternalClose(Force: Boolean);
745   var
746    i: Integer;
747   begin
# Line 720 | Line 770 | begin
770      end;
771    end;
772  
773 <  if (not HandleIsShared) and
774 <     (Call(isc_detach_database(StatusVector, @FHandle), False) > 0) and
725 <     (not Force) then
726 <    IBDataBaseError
727 <  else
728 <  begin
729 <    FHandle := nil;
730 <    FHandleIsShared := False;
731 <  end;
773 >  FAttachment.Disconnect(Force);
774 >  FAttachment := nil;
775  
733  {$IFDEF HAS_SQLMONITOR}
776    if not (csDesigning in ComponentState) then
777      MonitorHook.DBDisconnect(Self);
736  {$ENDIF}
778  
779    for i := 0 to FSQLObjects.Count - 1 do
780      if FSQLObjects[i] <> nil then
781        SQLObjects[i].DoAfterDatabaseDisconnect;
782   end;
783  
784 < procedure TIBDatabase.Loaded;
784 > procedure TIBDataBase.CheckStreamConnect;
785   var
786    i: integer;
787   begin
788    try
789 <    if StreamedConnected and (not Connected) then
789 >    if not (csDesigning in ComponentState) and StreamedConnected and (not Connected) then
790      begin
750      inherited Loaded;
791        for i := 0 to FTransactions.Count - 1 do
792          if  FTransactions[i] <> nil then
793          begin
# Line 763 | Line 803 | begin
803           (FDefaultTransaction.FStreamedActive) and
804           (not FDefaultTransaction.InTransaction) then
805          FDefaultTransaction.StartTransaction;
806 <      FStreamedConnected := False;
806 >      StreamedConnected := False;
807      end;
808    except
809      if csDesigning in ComponentState then
810 <      Application.HandleException(Self)
810 >      HandleException(Self)
811      else
812        raise;
813    end;
814   end;
815  
816 < procedure TIBDatabase.Notification( AComponent: TComponent;
817 <                                        Operation: TOperation);
816 > procedure TIBDataBase.HandleException(Sender: TObject);
817 > var aParent: TComponent;
818 > begin
819 >  aParent := Owner;
820 >  while aParent <> nil do
821 >  begin
822 >    if aParent is TCustomApplication then
823 >    begin
824 >      TCustomApplication(aParent).HandleException(Sender);
825 >      Exit;
826 >    end;
827 >    aParent := aParent.Owner;
828 >  end;
829 >  SysUtils.ShowException(ExceptObject,ExceptAddr);
830 > end;
831 >
832 > procedure TIBDataBase.Notification(AComponent: TComponent;
833 >   Operation: TOperation);
834   var
835    i: Integer;
836   begin
# Line 788 | Line 844 | begin
844    end;
845   end;
846  
847 < function TIBDatabase.Login: Boolean;
847 > function TIBDataBase.Login(var aDatabaseName: string): Boolean;
848   var
849    IndexOfUser, IndexOfPassword: Integer;
850    Username, Password, OldPassword: String;
# Line 812 | Line 868 | var
868    end;
869  
870   begin
871 <  if Assigned(FOnLogin) then
871 >  Result := false;
872 >  if FLoginCalled then Exit;
873 >  FLoginCalled := true;
874 >  try
875 >  if Assigned(FOnLogin) and not (csDesigning in ComponentState) then
876    begin
877      result := True;
878      LoginParams := TStringList.Create;
# Line 820 | Line 880 | begin
880        LoginParams.Assign(Params);
881        FOnLogin(Self, LoginParams);
882        Params.Assign (LoginParams);
883 +      aDatabaseName := FDBName;
884        HidePassword;
885      finally
886        LoginParams.Free;
887      end;
888    end
889    else
890 +  if assigned(IBGUIInterface) then
891    begin
892      IndexOfUser := IndexOfDBConst(DPBConstantNames[isc_dpb_user_name]);
893      if IndexOfUser <> -1 then
# Line 840 | Line 902 | begin
902                                           Length(Params[IndexOfPassword]));
903        OldPassword := password;
904      end;
905 <    result := LoginDialogEx(DatabaseName, Username, Password, False);
905 >
906 >    result := IBGUIInterface.LoginDialogEx(aDatabaseName, Username, Password, False);
907      if result then
908      begin
909 <      if IndexOfUser = -1 then
910 <        Params.Add(DPBConstantNames[isc_dpb_user_name] + '=' + Username)
911 <      else
912 <        Params[IndexOfUser] := DPBConstantNames[isc_dpb_user_name] +
909 >      if Username <> '' then
910 >      begin
911 >        if IndexOfUser = -1 then
912 >          Params.Add(DPBConstantNames[isc_dpb_user_name] + '=' + Username)
913 >        else
914 >          Params[IndexOfUser] := DPBConstantNames[isc_dpb_user_name] +
915                                   '=' + Username;
916 +      end
917 +      else
918 +      if IndexOfUser <> -1 then
919 +        Params.Delete(IndexOfUser);
920        if (Password = OldPassword) then
921          FHiddenPassword := ''
922        else
# Line 857 | Line 926 | begin
926            HidePassword;
927        end;
928      end;
929 +  end
930 +  else
931 +  if LoginPrompt then
932 +     IBError(ibxeNoLoginDialog,[]);
933 +  finally
934 +    FLoginCalled := false
935    end;
936   end;
937  
938 < procedure TIBDatabase.DoConnect;
938 > procedure TIBDataBase.DoConnect;
939 >
940 >  function ExpandDBName(aDBName: string): string;
941 >  const
942 >    TmpPrefix = '$TEMP$';
943 >    DataPrefix = '$DATADIR$';
944 >  var
945 >    LocalDirName: string;
946 >  begin
947 >    if Pos(TmpPrefix,aDBName) = 1 then
948 >    begin
949 >      system.Delete(aDBName,1,Length(TmpPrefix));
950 >      Result := GetTempDir + aDBName
951 >    end
952 >    else
953 >    if Pos(DataPrefix,aDBName) = 1 then
954 >    begin
955 >      system.Delete(aDBName,1,Length(DataPrefix));
956 >      if Sysutils.VendorName <> '' then
957 >        LocalDirName :=  Sysutils.VendorName
958 >      else
959 >        LocalDirName :=  'IBX';
960 >      {$IFDEF UNIX}
961 >      LocalDirName := GetUserDir + '.' + LocalDirName;
962 >      {$ENDIF}
963 >      {$IFDEF WINDOWS}
964 >      LocalDirName := GetWindowsSpecialDir(CSIDL_LOCAL_APPDATA) + LocalDirName;
965 >      {$ENDIF}
966 >      CreateDir(LocalDirName);
967 >      Result := LocalDirName + DirectorySeparator + aDBName;
968 >    end
969 >    else
970 >      Result := aDBName;
971 >  end;
972 >
973   var
865  DPB: String;
974    TempDBParams: TStrings;
975 <
975 >  I: integer;
976 >  aDBName: string;
977 >  Status: IStatus;
978 >  CharSetID: integer;
979 >  CharSetName: AnsiString;
980 >  DPB: IDPB;
981 >  PW: IDPBItem;
982   begin
983 +  DPB := nil;
984    CheckInactive;
985    CheckDatabaseName;
986    if (not LoginPrompt) and (FHiddenPassword <> '') then
# Line 874 | Line 989 | begin
989      FDBParamsChanged := True;
990    end;
991    { Use builtin login prompt if requested }
992 <  if LoginPrompt and not Login then
992 >  aDBName := ExpandDBName(FDBName);
993 >
994 >  if (LoginPrompt or (csDesigning in ComponentState)) and not Login(aDBName) then
995      IBError(ibxeOperationCancelled, [nil]);
996 <  { Generate a new DPB if necessary }
997 <  if (FDBParamsChanged) then
998 <  begin
999 <    FDBParamsChanged := False;
1000 <    if (not LoginPrompt) or (FHiddenPassword = '') then
1001 <      GenerateDPB(FDBParams, DPB, FDPBLength)
1002 <    else
1003 <    begin
1004 <      TempDBParams := TStringList.Create;
1005 <      try
1006 <       TempDBParams.Assign(FDBParams);
1007 <       TempDBParams.Add('password=' + FHiddenPassword);
1008 <       GenerateDPB(TempDBParams, DPB, FDPBLength);
1009 <      finally
1010 <       TempDBParams.Free;
1011 <      end;
1012 <    end;
1013 <    IBAlloc(FDPB, 0, FDPBLength);
1014 <    Move(DPB[1], FDPB[0], FDPBLength);
996 >
997 >  TempDBParams := TStringList.Create;
998 >  try
999 >   TempDBParams.Assign(FDBParams);
1000 >   {$ifdef UNIX}
1001 >   {See below for WINDOWS UseDefaultSystemCodePage}
1002 >   if UseDefaultSystemCodePage then
1003 >     TempDBParams.Values['lc_ctype'] :='UTF8';
1004 >   {$endif}
1005 >   {Opportunity to override defaults}
1006 >   for i := 0 to FSQLObjects.Count - 1 do
1007 >   begin
1008 >       if FSQLObjects[i] <> nil then
1009 >         SQLObjects[i].DoBeforeDatabaseConnect(TempDBParams,aDBName);
1010 >   end;
1011 >
1012 >   repeat
1013 >     { Generate a new DPB if necessary }
1014 >     if (DPB = nil) or FDBParamsChanged or (TempDBParams.Text <> FDBParams.Text) then
1015 >     begin
1016 >       FDBParamsChanged := False;
1017 >       if (not LoginPrompt and not (csDesigning in ComponentState)) or (FHiddenPassword = '') then
1018 >         DPB := GenerateDPB(TempDBParams)
1019 >       else
1020 >       begin
1021 >          TempDBParams.Values['password'] := FHiddenPassword;
1022 >          DPB := GenerateDPB(TempDBParams);
1023 >       end;
1024 >     end;
1025 >
1026 >     if FCreateDatabase then
1027 >     begin
1028 >       FCreateDatabase := false;
1029 >       DPB.Add(isc_dpb_set_db_SQL_dialect).AsByte := SQLDialect; {create with this SQL Dialect}
1030 >       FAttachment := FirebirdAPI.CreateDatabase(aDBName,DPB, false);
1031 >       if FAttachment = nil then
1032 >         DPB := nil;
1033 >       if assigned(FOnCreateDatabase) and (FAttachment <> nil) then
1034 >         OnCreateDatabase(self);
1035 >     end
1036 >     else
1037 >       FAttachment := FirebirdAPI.OpenDatabase(aDBName,DPB,false);
1038 >
1039 >     if FAttachment = nil then
1040 >     begin
1041 >       Status := FirebirdAPI.GetStatus;
1042 >       {$IFDEF UNIX}
1043 >       if GetProtocol(aDBName) = Local then
1044 >       begin
1045 >           if ((Status.GetSQLCode = -901) and (Status.GetIBErrorCode = isc_random)) {Access permissions on firebird temp}
1046 >              or
1047 >              ((Status.GetSQLCode = -902) and (Status.GetIBErrorCode = isc_sys_request)) {Security DB Problem}
1048 >              or
1049 >              ((Status.GetSQLCode = -902) and (Status.GetIBErrorCode = isc_psw_attach)) {Security DB Problem}
1050 >              or
1051 >              ((Status.GetSQLCode = -904) and (Status.GetIBErrorCode = isc_lock_dir_access)) {Lock File Problem}
1052 >              then
1053 >              begin
1054 >                aDBName := 'localhost:' + aDBName;
1055 >                Continue;
1056 >             end
1057 >       end;
1058 >       {$ENDIF}
1059 >       if ((Status.GetSQLCode = -902) and (Status.GetIBErrorCode = isc_io_error)) {Database not found}
1060 >                        and CreateIfNotExists and not (csDesigning in ComponentState) then
1061 >         FCreateDatabase := true
1062 >       else
1063 >         raise EIBInterBaseError.Create(Status);
1064 >     end;
1065 >
1066 >     if UseDefaultSystemCodePage and (FAttachment <> nil) then
1067 >     {Only now can we check the codepage in use by the Attachment.
1068 >      If not that required then re-open with required LCLType.}
1069 >     begin
1070 >       {$ifdef WINDOWS}
1071 >       if Attachment.CodePage2CharSetID(GetACP,CharSetID) then
1072 >       {$else}
1073 >       if Attachment.CodePage2CharSetID(DefaultSystemCodePage,CharSetID) then
1074 >       {$endif}
1075 >       begin
1076 >         CharSetName := Attachment.GetCharsetName(CharSetID);
1077 >         if CharSetName <> AnsiUpperCase(TempDBParams.Values['lc_ctype']) then
1078 >         begin
1079 >           TempDBParams.Values['lc_ctype'] := CharSetName;
1080 >           FDBParamsChanged := True;
1081 >           FAttachment := nil;
1082 >         end
1083 >       end
1084 >     end;
1085 >
1086 >   until FAttachment <> nil;
1087 >
1088 >  finally
1089 >   TempDBParams.Free;
1090    end;
1091 <  if Call(isc_attach_database(StatusVector, Length(FDBName),
1092 <                         PChar(FDBName), @FHandle,
1093 <                         FDPBLength, FDPB), False) > 0 then
1091 >  PW := Attachment.getDPB.Find(isc_dpb_password);
1092 >  if PW <> nil then PW.AsString := 'xxxxxxxx'; {Hide password}
1093 >
1094 >  if not (csDesigning in ComponentState) then
1095 >    FDBName := aDBName; {Synchronise at run time}
1096 >  ValidateClientSQLDialect;
1097 >  for i := 0 to FSQLObjects.Count - 1 do
1098    begin
1099 <    FHandle := nil;
1100 <    IBDataBaseError;
1099 >      if FSQLObjects[i] <> nil then
1100 >        SQLObjects[i].DoAfterDatabaseConnect;
1101    end;
906  FDBSQLDialect := GetDBSQLDialect;
907  ValidateClientSQLDialect;
908  {$IFDEF HAS_SQLMONITOR}
1102    if not (csDesigning in ComponentState) then
1103      MonitorHook.DBConnect(Self);
911  {$ENDIF}
1104   end;
1105  
1106 < procedure TIBDatabase.RemoveSQLObject(Idx: Integer);
1106 > procedure TIBDataBase.RemoveSQLObject(Idx: Integer);
1107   var
1108    ds: TIBBase;
1109   begin
# Line 921 | Line 1113 | begin
1113      FSQLObjects[Idx] := nil;
1114      ds.Database := nil;
1115      if (ds.owner is TDataSet) then
924    {$IFDEF LINUX}
1116        FDataSets.Remove(TDataSet(ds.Owner));
926    {$ELSE}
927      UnregisterClient(TDataSet(ds.Owner));
928    {$ENDIF}
1117    end;
1118   end;
1119  
1120 < procedure TIBDatabase.RemoveSQLObjects;
1120 > procedure TIBDataBase.RemoveSQLObjects;
1121   var
1122    i: Integer;
1123   begin
# Line 937 | Line 1125 | begin
1125    begin
1126      RemoveSQLObject(i);
1127      if (TIBBase(FSQLObjects[i]).owner is TDataSet) then
940    {$IFDEF LINUX}
1128        FDataSets.Remove(TDataSet(TIBBase(FSQLObjects[i]).owner));
942    {$ELSE}
943      UnregisterClient(TDataSet(TIBBase(FSQLObjects[i]).owner));
944    {$ENDIF}
1129    end;
1130   end;
1131  
1132 < procedure TIBDatabase.RemoveTransaction(Idx: Integer);
1132 > procedure TIBDataBase.RemoveTransaction(Idx: Integer);
1133   var
1134    TR: TIBTransaction;
1135   begin
# Line 959 | Line 1143 | begin
1143    end;
1144   end;
1145  
1146 < procedure TIBDatabase.RemoveTransactions;
1146 > procedure TIBDataBase.RemoveTransactions;
1147   var
1148    i: Integer;
1149   begin
# Line 967 | Line 1151 | begin
1151      RemoveTransaction(i);
1152   end;
1153  
1154 < procedure TIBDatabase.SetDatabaseName(const Value: TIBFileName);
1154 > procedure TIBDataBase.SetDatabaseName( const Value: TIBFileName);
1155   begin
1156    if FDBName <> Value then
1157    begin
# Line 977 | Line 1161 | begin
1161    end;
1162   end;
1163  
1164 < procedure TIBDatabase.SetDBParamByDPB(const Idx: Integer; Value: String);
1164 > procedure TIBDataBase.SetDBParamByDPB( const Idx: Integer; Value: String);
1165   var
1166    ConstIdx: Integer;
1167   begin
# Line 996 | Line 1180 | begin
1180    end;
1181   end;
1182  
1183 < procedure TIBDatabase.SetDBParams(Value: TStrings);
1183 > procedure TIBDataBase.SetDBParams(Value: TStrings);
1184   begin
1185    FDBParams.Assign(Value);
1186   end;
1187  
1188 < procedure TIBDatabase.SetDefaultTransaction(Value: TIBTransaction);
1188 > procedure TIBDataBase.SetDefaultTransaction(Value: TIBTransaction);
1189   var
1190    i: Integer;
1191   begin
# Line 1019 | Line 1203 | begin
1203    FDefaultTransaction := Value;
1204   end;
1205  
1206 < procedure TIBDatabase.SetHandle(Value: TISC_DB_HANDLE);
1023 < begin
1024 <  if HandleIsShared then
1025 <    Close
1026 <  else
1027 <    CheckInactive;
1028 <  FHandle := Value;
1029 <  FHandleIsShared := (Value <> nil);
1030 < end;
1031 <
1032 < procedure TIBDatabase.SetIdleTimer(Value: Integer);
1206 > procedure TIBDataBase.SetIdleTimer(Value: Integer);
1207   begin
1208    if Value < 0 then
1209      IBError(ibxeTimeoutNegative, [nil])
# Line 1048 | Line 1222 | begin
1222        end;
1223   end;
1224  
1225 < function TIBDatabase.TestConnected: Boolean;
1225 > function TIBDataBase.TestConnected: Boolean;
1226   var
1227    DatabaseInfo: TIBDatabaseInfo;
1228   begin
# Line 1069 | Line 1243 | begin
1243    end;
1244   end;
1245  
1246 < procedure TIBDatabase.TimeoutConnection(Sender: TObject);
1246 > procedure TIBDataBase.TimeoutConnection(Sender: TObject);
1247   begin
1248    if Connected then
1249    begin
1250 <    if FCanTimeout then
1250 >    if not FAttachment.HasActivity then
1251      begin
1252        ForceClose;
1253        if Assigned(FOnIdleTimer) then
1254          FOnIdleTimer(Self);
1255      end
1082    else
1083      FCanTimeout := True;
1256    end;
1257   end;
1258  
1259 < function TIBDatabase.GetIsReadOnly: Boolean;
1259 > function TIBDataBase.GetIsReadOnly: Boolean;
1260   var
1261    DatabaseInfo: TIBDatabaseInfo;
1262   begin
# Line 1102 | Line 1274 | begin
1274    DatabaseInfo.Free;
1275   end;
1276  
1105 function TIBDatabase.GetSQLDialect: Integer;
1106 begin
1107  Result := FSQLDialect;
1108 end;
1277  
1278 < procedure TIBDatabase.SetSQLDialect(const Value: Integer);
1278 > procedure TIBDataBase.SetSQLDialect( const Value: Integer);
1279   begin
1280    if (Value < 1) then IBError(ibxeSQLDialectInvalid, [nil]);
1281 <  if ((FHandle = nil) or (Value <= FDBSQLDialect))  then
1281 >  if (Attachment = nil) or (Value <= DBSQLDialect)  then
1282      FSQLDialect := Value
1283    else
1284      IBError(ibxeSQLDialectInvalid, [nil]);
1285   end;
1286  
1287 < function TIBDatabase.GetDBSQLDialect: Integer;
1120 < var
1121 <  DatabaseInfo: TIBDatabaseInfo;
1287 > function TIBDataBase.GetDBSQLDialect: Integer;
1288   begin
1289 <  DatabaseInfo := TIBDatabaseInfo.Create(self);
1290 <  DatabaseInfo.Database := self;
1125 <  result := DatabaseInfo.DBSQLDialect;
1126 <  DatabaseInfo.Free;
1289 >  CheckActive;
1290 >  Result := Attachment.GetSQLDialect;
1291   end;
1292  
1293 < procedure TIBDatabase.ValidateClientSQLDialect;
1293 > function TIBDataBase.GetDefaultCharSetID: integer;
1294   begin
1295 <  if (FDBSQLDialect < FSQLDialect) then
1295 >  if (Attachment <> nil) and Attachment.HasDefaultCharSet then
1296 >    Result := Attachment.GetDefaultCharSetID
1297 >  else
1298 >    Result := 0;
1299 > end;
1300 >
1301 > function TIBDataBase.GetDefaultCharSetName: AnsiString;
1302 > begin
1303 >  if Attachment <> nil then
1304 >    Result := Attachment.GetCharsetName(DefaultCharSetID)
1305 >  else
1306 >    Result := '';
1307 > end;
1308 >
1309 > function TIBDataBase.GetDefaultCodePage: TSystemCodePage;
1310 > begin
1311 >  if Attachment <> nil then
1312 >    Attachment.CharSetID2CodePage(DefaultCharSetID,Result)
1313 >  else
1314 >    Result := CP_NONE;
1315 > end;
1316 >
1317 > function TIBDataBase.GetRemoteProtocol: string;
1318 > begin
1319 >  CheckActive;
1320 >  Result := Attachment.GetRemoteProtocol;
1321 > end;
1322 >
1323 > procedure TIBDataBase.ValidateClientSQLDialect;
1324 > begin
1325 >  if (DBSQLDialect < FSQLDialect) then
1326    begin
1327 <    FSQLDialect := FDBSQLDialect;
1327 >    FSQLDialect := DBSQLDialect;
1328      if Assigned (FOnDialectDowngradeWarning) then
1329        FOnDialectDowngradeWarning(self);
1330    end;
1331   end;
1332  
1333 < procedure TIBDatabase.ApplyUpdates(const DataSets: array of TDataSet);
1333 > procedure TIBDataBase.ApplyUpdates( const DataSets: array of TDataSet);
1334   var
1335    I: Integer;
1336    DS: TIBCustomDataSet;
# Line 1162 | Line 1356 | begin
1356    TR.CommitRetaining;
1357   end;
1358  
1359 < procedure TIBDatabase.CloseDataSets;
1359 > procedure TIBDataBase.CloseDataSets;
1360   var
1361    i: Integer;
1362   begin
# Line 1171 | Line 1365 | begin
1365        DataSets[i].close;
1366   end;
1367  
1368 < function TIBDatabase.GetDataset(Index : longint) : TDataset;
1368 > function TIBDataBase.GetDataset(Index: longint): TDataset;
1369   begin
1370    if (Index >= 0) and (Index < FDataSets.Count) then
1371      Result := TDataSet(FDataSets[Index])
# Line 1179 | Line 1373 | begin
1373      raise Exception.Create('Invalid Index to DataSets');
1374   end;
1375  
1376 < function TIBDatabase.GetDataSetCount : Longint;
1376 > function TIBDataBase.GetDataSetCount: Longint;
1377   begin
1378    Result := FDataSets.Count;
1379   end;
1380  
1381 < procedure TIBDatabase.GetFieldNames(const TableName: string; List: TStrings);
1381 > procedure TIBDataBase.ReadState(Reader: TReader);
1382 > begin
1383 >  FDBParams.Clear;
1384 >  inherited ReadState(Reader);
1385 > end;
1386 >
1387 > procedure TIBDataBase.SetConnected(Value: boolean);
1388 > begin
1389 >  if StreamedConnected and not AllowStreamedConnected then
1390 >  begin
1391 >    StreamedConnected := false;
1392 >    Value := false
1393 >  end;
1394 >  inherited SetConnected(Value);
1395 > end;
1396 >
1397 > procedure TIBDataBase.GetFieldNames( const TableName: string; List: TStrings);
1398   var
1399    Query: TIBSQL;
1400   begin
# Line 1200 | Line 1410 | begin
1410      Query.Database := Self;
1411      Query.Transaction := FInternalTransaction;
1412      Query.SQL.Text := 'Select R.RDB$FIELD_NAME ' + {do not localize}
1413 <      'from RDB$RELATION_FIELDS R, RDB$FIELDS F ' + {do not localize}
1413 >      'from RDB$RELATION_FIELDS R ' + {do not localize}
1414        'where R.RDB$RELATION_NAME = ' + {do not localize}
1415 <      '''' +
1416 <      FormatIdentifierValue(SQLDialect, TableName) +
1207 <      ''' ' +
1208 <      'and R.RDB$FIELD_SOURCE = F.RDB$FIELD_NAME '; {do not localize}
1415 >      '''' + ExtractIdentifier(DBSQLDialect, TableName) +
1416 >      ''' and Exists(Select * From RDB$FIELDS F Where R.RDB$FIELD_SOURCE = F.RDB$FIELD_NAME)' ; {do not localize}
1417      Query.Prepare;
1418      Query.ExecQuery;
1419      with List do
# Line 1213 | Line 1421 | begin
1421        BeginUpdate;
1422        try
1423          Clear;
1424 <        while (not Query.EOF) and (Query.Next <> nil) do
1425 <          List.Add(TrimRight(Query.Current.ByName('RDB$FIELD_NAME').AsString)); {do not localize}
1424 >        while (not Query.EOF) and Query.Next  do
1425 >          List.Add(TrimRight(Query.FieldByName('RDB$FIELD_NAME').AsString)); {do not localize}
1426        finally
1427          EndUpdate;
1428        end;
# Line 1225 | Line 1433 | begin
1433    end;
1434   end;
1435  
1436 < procedure TIBDatabase.GetTableNames(List: TStrings; SystemTables: Boolean);
1436 > procedure TIBDataBase.GetTableNames(List: TStrings; SystemTables: Boolean);
1437   var
1438    Query : TIBSQL;
1439   begin
# Line 1253 | Line 1461 | begin
1461          BeginUpdate;
1462          try
1463            Clear;
1464 <          while (not Query.EOF) and (Query.Next <> nil) do
1465 <            List.Add(TrimRight(Query.Current[0].AsString));
1464 >          while (not Query.EOF) and Query.Next  do
1465 >            List.Add(TrimRight(Query.Fields[0].AsString));
1466          finally
1467            EndUpdate;
1468          end;
# Line 1271 | Line 1479 | end;
1479   constructor TIBTransaction.Create(AOwner: TComponent);
1480   begin
1481    inherited Create(AOwner);
1274  FIBLoaded := False;
1275  CheckIBLoaded;
1276  FIBLoaded := True;
1277  CheckIBLoaded;
1482    FDatabases := TList.Create;
1483    FSQLObjects := TList.Create;
1280  FHandle := nil;
1484    FTPB := nil;
1282  FTPBLength := 0;
1485    FTRParams := TStringList.Create;
1486    FTRParamsChanged := True;
1487    TStringList(FTRParams).OnChange := TRParamsChange;
1488    TStringList(FTRParams).OnChanging := TRParamsChanging;
1489 <  FTimer := TTimer.Create(Self);
1489 >  FTimer := TFPTimer.Create(Self);
1490    FTimer.Enabled := False;
1491    FTimer.Interval := 0;
1492    FTimer.OnTimer := TimeoutTransaction;
# Line 1295 | Line 1497 | destructor TIBTransaction.Destroy;
1497   var
1498    i: Integer;
1499   begin
1500 <  if FIBLoaded then
1501 <  begin
1502 <    if InTransaction then
1503 <      EndTransaction(FDefaultAction, True);
1504 <    for i := 0 to FSQLObjects.Count - 1 do
1505 <      if FSQLObjects[i] <> nil then
1506 <        SQLObjects[i].DoTransactionFree;
1507 <    RemoveSQLObjects;
1508 <    RemoveDatabases;
1509 <    FreeMem(FTPB);
1510 <    FTPB := nil;
1309 <    FTRParams.Free;
1310 <    FSQLObjects.Free;
1311 <    FDatabases.Free;
1312 <  end;
1500 >  if InTransaction then
1501 >    EndTransaction(FDefaultAction, True);
1502 >  for i := 0 to FSQLObjects.Count - 1 do
1503 >    if FSQLObjects[i] <> nil then
1504 >      SQLObjects[i].DoTransactionFree;
1505 >  RemoveSQLObjects;
1506 >  RemoveDatabases;
1507 >  FTPB := nil;
1508 >  FTRParams.Free;
1509 >  FSQLObjects.Free;
1510 >  FDatabases.Free;
1511    inherited Destroy;
1512   end;
1513  
1316 function TIBTransaction.Call(ErrCode: ISC_STATUS;
1317  RaiseError: Boolean): ISC_STATUS;
1318 var
1319  i: Integer;
1320 begin
1321  result := ErrCode;
1322  for i := 0 to FDatabases.Count - 1 do if FDatabases[i] <> nil then
1323    Databases[i].FCanTimeout := False;
1324  FCanTimeout := False;
1325  if RaiseError and (result > 0) then
1326    IBDataBaseError;
1327 end;
1328
1514   procedure TIBTransaction.CheckDatabasesInList;
1515   begin
1516    if GetDatabaseCount = 0 then
# Line 1336 | Line 1521 | procedure TIBTransaction.CheckInTransact
1521   begin
1522    if FStreamedActive and (not InTransaction) then
1523      Loaded;
1524 <  if (FHandle = nil) then
1524 >  if (TransactionIntf = nil) then
1525      IBError(ibxeNotInTransaction, [nil]);
1526   end;
1527  
1528 + procedure TIBTransaction.DoBeforeTransactionEnd;
1529 + begin
1530 +  if Assigned(FBeforeTransactionEnd) then
1531 +    FBeforeTransactionEnd(self);
1532 + end;
1533 +
1534 + procedure TIBTransaction.DoAfterTransactionEnd;
1535 + begin
1536 +  if Assigned(FAfterTransactionEnd) then
1537 +    FAfterTransactionEnd(self);
1538 + end;
1539 +
1540 + procedure TIBTransaction.DoOnStartTransaction;
1541 + begin
1542 +  if assigned(FOnStartTransaction) then
1543 +    OnStartTransaction(self);
1544 + end;
1545 +
1546 + procedure TIBTransaction.DoAfterExecQuery(Sender: TObject);
1547 + begin
1548 +  if assigned(FAfterExecQuery) then
1549 +    AfterExecQuery(Sender);
1550 + end;
1551 +
1552 + procedure TIBTransaction.DoAfterEdit(Sender: TObject);
1553 + begin
1554 +  if assigned(FAfterEdit) then
1555 +    AfterEdit(Sender);
1556 + end;
1557 +
1558 + procedure TIBTransaction.DoAfterDelete(Sender: TObject);
1559 + begin
1560 +  if assigned(FAfterDelete) then
1561 +    AfterDelete(Sender);
1562 + end;
1563 +
1564 + procedure TIBTransaction.DoAfterInsert(Sender: TObject);
1565 + begin
1566 +  if assigned(FAfterInsert) then
1567 +    AfterInsert(Sender);
1568 + end;
1569 +
1570 + procedure TIBTransaction.DoAfterPost(Sender: TObject);
1571 + begin
1572 +  if assigned(FAfterPost) then
1573 +    AfterPost(Sender);
1574 + end;
1575 +
1576   procedure TIBTransaction.EnsureNotInTransaction;
1577   begin
1578    if csDesigning in ComponentState then
1579    begin
1580 <    if FHandle <> nil then
1580 >    if TransactionIntf <> nil then
1581        Rollback;
1582    end;
1583   end;
1584  
1585   procedure TIBTransaction.CheckNotInTransaction;
1586   begin
1587 <  if (FHandle <> nil) then
1587 >  if (TransactionIntf <> nil) and  TransactionIntf.InTransaction then
1588      IBError(ibxeInTransaction, [nil]);
1589   end;
1590  
# Line 1360 | Line 1593 | var
1593    i: Integer;
1594    NilFound: Boolean;
1595   begin
1596 +  EnsureNotInTransaction;
1597 +  CheckNotInTransaction;
1598 +  FTransactionIntf := nil;
1599 +
1600    i := FindDatabase(db);
1601    if i <> -1 then
1602    begin
# Line 1410 | Line 1647 | end;
1647   procedure TIBTransaction.EndTransaction(Action: TTransactionAction;
1648    Force: Boolean);
1649   var
1413  status: ISC_STATUS;
1650    i: Integer;
1651   begin
1652    CheckInTransaction;
1653 +  if FInEndTransaction then Exit;
1654 +  FInEndTransaction := true;
1655 +  FEndAction := Action;
1656 +  try
1657    case Action of
1658      TARollback, TACommit:
1659      begin
1660 <      if (HandleIsShared) and
1661 <         (Action <> FDefaultAction) and
1662 <         (not Force) then
1663 <        IBError(ibxeCantEndSharedTransaction, [nil]);
1660 >      try
1661 >        DoBeforeTransactionEnd;
1662 >      except on E: EIBInterBaseError do
1663 >        begin
1664 >          if not Force then
1665 >            raise;
1666 >        end;
1667 >      end;
1668 >
1669        for i := 0 to FSQLObjects.Count - 1 do if FSQLObjects[i] <> nil then
1670 <        SQLObjects[i].DoBeforeTransactionEnd;
1670 >      try
1671 >        SQLObjects[i].DoBeforeTransactionEnd(Action);
1672 >      except on E: EIBInterBaseError do
1673 >        begin
1674 >          if not Force then
1675 >              raise;
1676 >          end;
1677 >      end;
1678 >
1679        if InTransaction then
1680        begin
1681 <        if HandleIsShared then
1682 <        begin
1430 <          FHandle := nil;
1431 <          FHandleIsShared := False;
1432 <          status := 0;
1433 <        end
1681 >        if (Action = TARollback) then
1682 >            FTransactionIntf.Rollback(Force)
1683          else
1684 <          if (Action = TARollback) then
1685 <            status := Call(isc_rollback_transaction(StatusVector, @FHandle), False)
1686 <          else
1687 <            status := Call(isc_commit_transaction(StatusVector, @FHandle), False);
1688 <        if ((Force) and (status > 0)) then
1689 <          status := Call(isc_rollback_transaction(StatusVector, @FHandle), False);
1690 <        if Force then
1691 <          FHandle := nil
1692 <        else
1693 <          if (status > 0) then
1694 <            IBDataBaseError;
1695 <        for i := 0 to FSQLObjects.Count - 1 do if FSQLObjects[i] <> nil then
1696 <          SQLObjects[i].DoAfterTransactionEnd;
1684 >        try
1685 >          FTransactionIntf.Commit;
1686 >        except on E: EIBInterBaseError do
1687 >          begin
1688 >            if Force then
1689 >              FTransactionIntf.Rollback(Force)
1690 >            else
1691 >              raise;
1692 >          end;
1693 >        end;
1694 >
1695 >          for i := 0 to FSQLObjects.Count - 1 do if FSQLObjects[i] <> nil then
1696 >          try
1697 >            SQLObjects[i].DoAfterTransactionEnd;
1698 >          except on E: EIBInterBaseError do
1699 >            begin
1700 >              if not Force then
1701 >                raise;
1702 >            end;
1703 >          end;
1704 >        try
1705 >          DoAfterTransactionEnd;
1706 >        except on E: EIBInterBaseError do
1707 >          begin
1708 >            if not Force then
1709 >              raise;
1710 >          end;
1711 >        end;
1712        end;
1713      end;
1714      TACommitRetaining:
1715 <      Call(isc_commit_retaining(StatusVector, @FHandle), True);
1715 >      FTransactionIntf.CommitRetaining;
1716 >
1717      TARollbackRetaining:
1718 <      Call(isc_rollback_retaining(StatusVector, @FHandle), True);
1718 >      FTransactionIntf.RollbackRetaining;
1719    end;
1455  {$IFDEF HAS_SQLMONITOR}
1720    if not (csDesigning in ComponentState) then
1721    begin
1722      case Action of
# Line 1466 | Line 1730 | begin
1730          MonitorHook.TRRollbackRetaining(Self);
1731      end;
1732    end;
1733 <  {$ENDIF}
1733 >  finally
1734 >    FInEndTransaction := false
1735 >  end;
1736   end;
1737  
1738   function TIBTransaction.GetDatabase(Index: Integer): TIBDatabase;
# Line 1501 | Line 1767 | end;
1767  
1768   function TIBTransaction.GetInTransaction: Boolean;
1769   begin
1770 <  result := (FHandle <> nil);
1770 >  result := (TransactionIntf <> nil) and TransactionIntf.InTransaction;
1771   end;
1772  
1773   function TIBTransaction.FindDatabase(db: TIBDatabase): Integer;
# Line 1534 | Line 1800 | begin
1800    end;
1801   end;
1802  
1803 + function TIBTransaction.GetEndAction: TTransactionAction;
1804 + begin
1805 +  if FInEndTransaction then
1806 +     Result := FEndAction
1807 +  else
1808 +     IBError(ibxeIB60feature, [nil])
1809 + end;
1810 +
1811  
1812   function TIBTransaction.GetIdleTimer: Integer;
1813   begin
# Line 1549 | Line 1823 | procedure TIBTransaction.BeforeDatabaseD
1823   begin
1824    if InTransaction then
1825      EndTransaction(FDefaultAction, True);
1826 +  FTransactionIntf := nil;
1827   end;
1828  
1829   procedure TIBTransaction.RemoveDatabase(Idx: Integer);
# Line 1557 | Line 1832 | var
1832   begin
1833    if ((Idx >= 0) and (FDatabases[Idx] <> nil)) then
1834    begin
1835 +    EnsureNotInTransaction;
1836 +    CheckNotInTransaction;
1837 +    FTransactionIntf := nil;
1838 +
1839      DB := Databases[Idx];
1840      FDatabases[Idx] := nil;
1841      DB.RemoveTransaction(DB.FindTransaction(Self));
# Line 1569 | Line 1848 | procedure TIBTransaction.RemoveDatabases
1848   var
1849    i: Integer;
1850   begin
1851 +  EnsureNotInTransaction;
1852 +  CheckNotInTransaction;
1853 +  FTransactionIntf := nil;
1854 +
1855    for i := 0 to FDatabases.Count - 1 do if FDatabases[i] <> nil then
1856      RemoveDatabase(i);
1857   end;
# Line 1615 | Line 1898 | begin
1898          Rollback;
1899   end;
1900  
1618 procedure TIBTransaction.SetDefaultAction(Value: TTransactionAction);
1619 begin
1620 (*  if (Value = taRollbackRetaining) and (GetIBClientVersion < 6) then
1621    IBError(ibxeIB60feature, [nil]);*)
1622  FDefaultAction := Value;
1623 end;
1624
1901   procedure TIBTransaction.SetDefaultDatabase(Value: TIBDatabase);
1902   var
1903    i: integer;
# Line 1639 | Line 1915 | begin
1915      for i := 0 to FSQLObjects.Count - 1 do
1916        if (FSQLObjects[i] <> nil) and
1917           (TIBBase(FSQLObjects[i]).Database = nil) then
1918 <        SetOrdProp(TIBBase(FSQLObjects[i]).Owner, 'Database', Integer(Value));
1918 >         SetObjectProp(TIBBase(FSQLObjects[i]).Owner, 'Database', Value);
1919    end;
1920    FDefaultDatabase := Value;
1921   end;
1922  
1647 procedure TIBTransaction.SetHandle(Value: TISC_TR_HANDLE);
1648 begin
1649  if (HandleIsShared) then
1650    EndTransaction(DefaultAction, True)
1651  else
1652    CheckNotInTransaction;
1653  FHandle := Value;
1654  FHandleIsShared := (Value <> nil);
1655 end;
1656
1923   procedure TIBTransaction.Notification( AComponent: TComponent;
1924                                          Operation: TOperation);
1925   var
# Line 1695 | Line 1961 | end;
1961  
1962   procedure TIBTransaction.StartTransaction;
1963   var
1698  pteb: PISC_TEB_ARRAY;
1699  TPB: String;
1964    i: Integer;
1965 +  Attachments: array of IAttachment;
1966 +  ValidDatabaseCount: integer;
1967   begin
1968    CheckNotInTransaction;
1969    CheckDatabasesInList;
1970 +  if TransactionIntf <> nil then
1971 +  begin
1972 +    TransactionIntf.Start(DefaultAction);
1973 +    Exit;
1974 +  end;
1975 +
1976    for i := 0 to FDatabases.Count - 1 do
1977     if  FDatabases[i] <> nil then
1978     begin
1979       with TIBDatabase(FDatabases[i]) do
1980       if not Connected then
1981 <       if FStreamedConnected then
1981 >       if StreamedConnected then
1982         begin
1983           Open;
1984 <         FStreamedConnected := False;
1984 >         StreamedConnected := False;
1985         end
1986         else
1987           IBError(ibxeDatabaseClosed, [nil]);
# Line 1717 | Line 1989 | begin
1989    if FTRParamsChanged then
1990    begin
1991      FTRParamsChanged := False;
1992 <    GenerateTPB(FTRParams, TPB, FTPBLength);
1721 <    if FTPBLength > 0 then
1722 <    begin
1723 <      IBAlloc(FTPB, 0, FTPBLength);
1724 <      Move(TPB[1], FTPB[0], FTPBLength);
1725 <    end;
1992 >    FTPB :=  GenerateTPB(FTRParams);
1993    end;
1994  
1995 <  pteb := nil;
1996 <  IBAlloc(pteb, 0, DatabaseCount * SizeOf(TISC_TEB));
1997 <  try
1998 <    for i := 0 to DatabaseCount - 1 do if Databases[i] <> nil then
1999 <    begin
2000 <      pteb^[i].db_handle := @(Databases[i].Handle);
2001 <      pteb^[i].tpb_length := FTPBLength;
2002 <      pteb^[i].tpb_address := FTPB;
2003 <    end;
2004 <    if Call(isc_start_multiple(StatusVector, @FHandle,
2005 <                               DatabaseCount, PISC_TEB(pteb)), False) > 0 then
2006 <    begin
2007 <      FHandle := nil;
2008 <      IBDataBaseError;
1742 <    end;
1743 <  {$IFDEF HAS_SQLMONITOR}
1744 <    if not (csDesigning in ComponentState) then
1745 <      MonitorHook.TRStart(Self);
1746 <  {$ENDIF}
1747 <  finally
1748 <    FreeMem(pteb);
1995 >  ValidDatabaseCount := 0;
1996 >  for i := 0 to DatabaseCount - 1 do
1997 >    if Databases[i] <> nil then Inc(ValidDatabaseCount);
1998 >
1999 >  if ValidDatabaseCount = 1 then
2000 >    FTransactionIntf := Databases[0].Attachment.StartTransaction(FTPB,DefaultAction)
2001 >  else
2002 >  begin
2003 >    SetLength(Attachments,ValidDatabaseCount);
2004 >    for i := 0 to DatabaseCount - 1 do
2005 >      if Databases[i] <> nil then
2006 >        Attachments[i] := Databases[i].Attachment;
2007 >
2008 >    FTransactionIntf := FirebirdAPI.StartTransaction(Attachments,FTPB,DefaultAction);
2009    end;
2010 +
2011 +  if not (csDesigning in ComponentState) then
2012 +      MonitorHook.TRStart(Self);
2013 +  DoOnStartTransaction;
2014   end;
2015  
2016   procedure TIBTransaction.TimeoutTransaction(Sender: TObject);
2017   begin
2018    if InTransaction then
2019    begin
2020 <    if FCanTimeout then
2020 >    if not TransactionIntf.HasActivity then
2021      begin
2022        EndTransaction(FDefaultAction, True);
2023        if Assigned(FOnIdleTimer) then
2024          FOnIdleTimer(Self);
2025      end
1762    else
1763      FCanTimeout := True;
2026    end;
2027   end;
2028  
# Line 1773 | Line 2035 | procedure TIBTransaction.TRParamsChangin
2035   begin
2036    EnsureNotInTransaction;
2037    CheckNotInTransaction;
2038 +  FTransactionIntf := nil;
2039   end;
2040  
2041   { TIBBase }
# Line 1788 | Line 2051 | begin
2051    inherited Destroy;
2052   end;
2053  
2054 + procedure TIBBase.HandleException(Sender: TObject);
2055 + begin
2056 +  if assigned(Database) then
2057 +     Database.HandleException(Sender)
2058 +  else
2059 +     SysUtils.ShowException(ExceptObject,ExceptAddr);
2060 + end;
2061 +
2062 + procedure TIBBase.SetCursor;
2063 + begin
2064 +  if Assigned(Database) and not Database.SQLHourGlass then
2065 +     Exit;
2066 +  if assigned(IBGUIInterface) then
2067 +     IBGUIInterface.SetCursor;
2068 + end;
2069 +
2070 + procedure TIBBase.RestoreCursor;
2071 + begin
2072 +  if Assigned(Database) and not Database.SQLHourGlass then
2073 +     Exit;
2074 +  if assigned(IBGUIInterface) then
2075 +     IBGUIInterface.RestoreCursor;
2076 + end;
2077 +
2078   procedure TIBBase.CheckDatabase;
2079   begin
2080    if (FDatabase = nil) then
# Line 1802 | Line 2089 | begin
2089    FTransaction.CheckInTransaction;
2090   end;
2091  
2092 < function TIBBase.GetDBHandle: PISC_DB_HANDLE;
2092 > procedure TIBBase.DoBeforeDatabaseConnect(DBParams: TStrings; var DBName: string
2093 >  );
2094   begin
2095 <  CheckDatabase;
2096 <  result := @FDatabase.Handle;
2095 >  if assigned(FBeforeDatabaseConnect) then
2096 >    BeforeDatabaseConnect(self,DBParams,DBName);
2097   end;
2098  
2099 < function TIBBase.GetTRHandle: PISC_TR_HANDLE;
2099 > procedure TIBBase.DoAfterDatabaseConnect;
2100   begin
2101 <  CheckTransaction;
2102 <  result := @FTransaction.Handle;
2101 >  if assigned(FAfterDatabaseConnect) then
2102 >    AfterDatabaseConnect(self);
2103   end;
2104  
2105   procedure TIBBase.DoBeforeDatabaseDisconnect;
# Line 1834 | Line 2122 | begin
2122    SetTransaction(nil);
2123   end;
2124  
2125 < procedure TIBBase.DoBeforeTransactionEnd;
2125 > procedure TIBBase.DoBeforeTransactionEnd(Action: TTransactionAction);
2126   begin
2127    if Assigned(BeforeTransactionEnd) then
2128 <    BeforeTransactionEnd(Self);
2128 >    BeforeTransactionEnd(Self,Action);
2129   end;
2130  
2131   procedure TIBBase.DoAfterTransactionEnd;
# Line 1853 | Line 2141 | begin
2141    FTransaction := nil;
2142   end;
2143  
2144 + procedure TIBBase.DoAfterExecQuery(Sender: TObject);
2145 + begin
2146 +  if FTransaction <> nil then
2147 +    FTransaction.DoAfterExecQuery(Sender);
2148 + end;
2149 +
2150 + procedure TIBBase.DoAfterEdit(Sender: TObject);
2151 + begin
2152 +  if FTransaction <> nil then
2153 +    FTransaction.DoAfterEdit(Sender);
2154 + end;
2155 +
2156 + procedure TIBBase.DoAfterDelete(Sender: TObject);
2157 + begin
2158 +  if FTransaction <> nil then
2159 +    FTransaction.DoAfterDelete(Sender);
2160 + end;
2161 +
2162 + procedure TIBBase.DoAfterInsert(Sender: TObject);
2163 + begin
2164 +  if FTransaction <> nil then
2165 +    FTransaction.DoAfterInsert(Sender);
2166 + end;
2167 +
2168 + procedure TIBBase.DoAfterPost(Sender: TObject);
2169 + begin
2170 +  if FTransaction <> nil then
2171 +    FTransaction.DoAfterPost(Sender);
2172 + end;
2173 +
2174   procedure TIBBase.SetDatabase(Value: TIBDatabase);
2175   begin
2176    if (FDatabase <> nil) then
# Line 1885 | Line 2203 | end;
2203    parameter buffer, and return it and its length
2204    in DPB and DPBLength, respectively. }
2205  
2206 < procedure GenerateDPB(sl: TStrings; var DPB: string; var DPBLength: Short);
2206 > function GenerateDPB(sl: TStrings): IDPB;
2207   var
2208 <  i, j, pval: Integer;
2208 >  i, j: Integer;
2209    DPBVal: UShort;
2210    ParamName, ParamValue: string;
2211   begin
2212 <  { The DPB is initially empty, with the exception that
1895 <    the DPB version must be the first byte of the string. }
1896 <  DPBLength := 1;
1897 <  DPB := Char(isc_dpb_version1);
2212 >  Result := FirebirdAPI.AllocateDPB;
2213  
2214    {Iterate through the textual database parameters, constructing
2215     a DPB on-the-fly }
# Line 1928 | Line 2243 | begin
2243      case DPBVal of
2244        isc_dpb_user_name, isc_dpb_password, isc_dpb_password_enc,
2245        isc_dpb_sys_user_name, isc_dpb_license, isc_dpb_encrypt_key,
2246 <      isc_dpb_lc_messages, isc_dpb_lc_ctype,
2246 >      isc_dpb_lc_messages, isc_dpb_lc_ctype, isc_dpb_page_size,
2247        isc_dpb_sql_role_name, isc_dpb_sql_dialect:
2248        begin
2249          if DPBVal = isc_dpb_sql_dialect then
2250            ParamValue[1] := Char(Ord(ParamValue[1]) - 48);
2251 <        DPB := DPB +
1937 <               Char(DPBVal) +
1938 <               Char(Length(ParamValue)) +
1939 <               ParamValue;
1940 <        Inc(DPBLength, 2 + Length(ParamValue));
2251 >        Result.Add(DPBVal).SetAsString(ParamValue);
2252        end;
2253 +
2254        isc_dpb_num_buffers, isc_dpb_dbkey_scope, isc_dpb_force_write,
2255        isc_dpb_no_reserve, isc_dpb_damaged, isc_dpb_verify:
2256 <      begin
2257 <        DPB := DPB +
1946 <               Char(DPBVal) +
1947 <               #1 +
1948 <               Char(StrToInt(ParamValue));
1949 <        Inc(DPBLength, 3);
1950 <      end;
2256 >        Result.Add(DPBVal).SetAsByte(byte(ParamValue[1]));
2257 >
2258        isc_dpb_sweep:
2259 <      begin
2260 <        DPB := DPB +
1954 <               Char(DPBVal) +
1955 <               #1 +
1956 <               Char(isc_dpb_records);
1957 <        Inc(DPBLength, 3);
1958 <      end;
2259 >        Result.Add(DPBVal).SetAsByte(isc_dpb_records);
2260 >
2261        isc_dpb_sweep_interval:
2262 <      begin
2263 <        pval := StrToInt(ParamValue);
1962 <        DPB := DPB +
1963 <               Char(DPBVal) +
1964 <               #4 +
1965 <               PChar(@pval)[0] +
1966 <               PChar(@pval)[1] +
1967 <               PChar(@pval)[2] +
1968 <               PChar(@pval)[3];
1969 <        Inc(DPBLength, 6);
1970 <      end;
2262 >        Result.Add(DPBVal).SetAsInteger(StrToInt(ParamValue));
2263 >
2264        isc_dpb_activate_shadow, isc_dpb_delete_shadow, isc_dpb_begin_log,
2265 <      isc_dpb_quit_log:
2266 <      begin
1974 <        DPB := DPB +
1975 <               Char(DPBVal) +
1976 <               #1 + #0;
1977 <        Inc(DPBLength, 3);
1978 <      end;
2265 >      isc_dpb_map_attach, isc_dpb_quit_log:
2266 >        Result.Add(DPBVal).SetAsByte(0);
2267        else
2268        begin
2269          if (DPBVal > 0) and
# Line 1993 | Line 2281 | end;
2281    of the transaction parameters, generate a transaction
2282    parameter buffer, and return it and its length in
2283    TPB and TPBLength, respectively. }
2284 < procedure GenerateTPB(sl: TStrings; var TPB: string; var TPBLength: Short);
2284 > function GenerateTPB(sl: TStrings): ITPB;
2285   var
2286 <  i, j, TPBVal, ParamLength: Integer;
2286 >  i, j, TPBVal: Integer;
2287    ParamName, ParamValue: string;
2288   begin
2289 <  TPB := '';
2002 <  if (sl.Count = 0) then
2003 <    TPBLength := 0
2004 <  else
2005 <  begin
2006 <    TPBLength := sl.Count + 1;
2007 <    TPB := TPB + Char(isc_tpb_version3);
2008 <  end;
2289 >  Result := FirebirdAPI.AllocateTPB;
2290    for i := 0 to sl.Count - 1 do
2291    begin
2292      if (Trim(sl[i]) =  '') then
2012    begin
2013      Dec(TPBLength);
2293        Continue;
2294 <    end;
2294 >
2295      if (Pos('=', sl[i]) = 0) then {mbcs ok}
2296        ParamName := LowerCase(sl[i]) {mbcs ok}
2297      else
# Line 2036 | Line 2315 | begin
2315        isc_tpb_concurrency, isc_tpb_shared, isc_tpb_wait, isc_tpb_nowait,
2316        isc_tpb_read, isc_tpb_write, isc_tpb_ignore_limbo,
2317        isc_tpb_read_committed, isc_tpb_rec_version, isc_tpb_no_rec_version:
2318 <        TPB := TPB + Char(TPBVal);
2318 >        Result.Add(TPBVal);
2319 >
2320        isc_tpb_lock_read, isc_tpb_lock_write:
2321 <      begin
2322 <        TPB := TPB + Char(TPBVal);
2043 <        { Now set the string parameter }
2044 <        ParamLength := Length(ParamValue);
2045 <        Inc(TPBLength, ParamLength + 1);
2046 <        TPB := TPB + Char(ParamLength) + ParamValue;
2047 <      end;
2321 >        Result.Add(TPBVal).SetAsString(ParamValue);
2322 >
2323        else
2324        begin
2325          if (TPBVal > 0) and

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