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uses |
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Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs, StdCtrls, |
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Grids, ActnList, db, memds, IBServices, IBDynamicGrid; |
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ActnList, db, IBXServices, IBDynamicGrid; |
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|
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type |
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{ TLimboTransactionsForm } |
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TLimboTransactionsForm = class(TForm) |
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ApplySelectedAction: TAction; |
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Commit2PhaseAll: TAction; |
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IBXLimboTransactionResolutionService1: TIBXLimboTransactionResolutionService; |
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InLimboList: TIBXServicesLimboTransactionsList; |
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RollbackAll: TAction; |
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CommitAll: TAction; |
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ActionList1: TActionList; |
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Button4: TButton; |
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Button5: TButton; |
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IBDynamicGrid3: TIBDynamicGrid; |
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InLimboList: TMemDataset; |
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Label38: TLabel; |
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Label39: TLabel; |
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LimboListSource: TDataSource; |
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LimboReport: TMemo; |
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LimboTransactionValidation: TIBValidationService; |
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procedure ApplySelectedActionExecute(Sender: TObject); |
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procedure Commit2PhaseAllExecute(Sender: TObject); |
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procedure CommitAllExecute(Sender: TObject); |
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procedure CommitAllUpdate(Sender: TObject); |
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procedure FormClose(Sender: TObject; var CloseAction: TCloseAction); |
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procedure FormShow(Sender: TObject); |
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procedure InLimboListAfterOpen(DataSet: TDataSet); |
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procedure InLimboListBeforeClose(DataSet: TDataSet); |
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procedure InLimboListBeforePost(DataSet: TDataSet); |
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procedure RollbackAllExecute(Sender: TObject); |
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private |
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{ private declarations } |
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FLoadingLimboTr: boolean; |
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procedure DoRefresh(Data: PtrInt); |
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procedure RunGFix; |
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public |
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{ public declarations } |
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end; |
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{$R *.lfm} |
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uses MainFormUnit; |
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|
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{ TLimboTransactionsForm } |
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procedure TLimboTransactionsForm.FormShow(Sender: TObject); |
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LimboReport.Lines.Clear; |
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end; |
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procedure TLimboTransactionsForm.InLimboListAfterOpen(DataSet: TDataSet); |
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|
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function TypeToStr(MultiDatabase: boolean): string; |
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begin |
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if MultiDatabase then |
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Result := 'Multi DB' |
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else |
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Result := 'Single DB'; |
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end; |
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|
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function StateToStr(State: TTransactionState): string; |
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begin |
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case State of |
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LimboState: |
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Result := 'Limbo'; |
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CommitState: |
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Result := 'Commit'; |
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RollbackState: |
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Result := 'Rollback'; |
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else |
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Result := 'Unknown'; |
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end; |
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end; |
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|
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function AdviseToStr(Advise: TTransactionAdvise): string; |
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begin |
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case Advise of |
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CommitAdvise: |
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Result := 'Commit'; |
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RollbackAdvise: |
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Result := 'Rollback'; |
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else |
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Result := 'Unknown'; |
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end; |
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end; |
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|
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function ActionToStr(anAction: IBServices.TTransactionAction): string; |
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begin |
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case anAction of |
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CommitAction: |
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Result := 'Commit'; |
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RollbackAction: |
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Result := 'Rollback'; |
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end; |
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end; |
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|
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var i: integer; |
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begin |
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if FLoadingLimboTr then Exit; |
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FLoadingLimboTr := true; |
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with LimboTransactionValidation do |
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try |
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Active := true; |
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ServiceStart; |
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FetchLimboTransactionInfo; |
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for i := 0 to LimboTransactionInfoCount - 1 do |
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with LimboTransactionInfo[i] do |
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begin |
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InLimboList.Append; |
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InLimboList.FieldByName('TransactionID').AsInteger := ID; |
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InLimboList.FieldByName('TransactionType').AsString := TypeToStr(MultiDatabase); |
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InLimboList.FieldByName('HostSite').AsString := HostSite; |
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InLimboList.FieldByName('RemoteSite').AsString := RemoteSite; |
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InLimboList.FieldByName('DatabasePath').AsString := RemoteDatabasePath; |
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InLimboList.FieldByName('State').AsString := StateToStr(State); |
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InLimboList.FieldByName('RecommendedAction').AsString := AdviseToStr(Advise); |
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InLimboList.FieldByName('RequestedAction').AsString := ActionToStr(Action); |
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InLimboList.Post; |
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end; |
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finally |
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FLoadingLimboTr := false; |
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end; |
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end; |
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|
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procedure TLimboTransactionsForm.InLimboListBeforeClose(DataSet: TDataSet); |
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begin |
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InLimboList.Clear(false); |
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end; |
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|
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procedure TLimboTransactionsForm.InLimboListBeforePost(DataSet: TDataSet); |
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var i: integer; |
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begin |
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if FLoadingLimboTr then Exit; |
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with LimboTransactionValidation do |
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for i := 0 to LimboTransactionInfoCount - 1 do |
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with LimboTransactionInfo[i] do |
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begin |
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if ID = InLimboList.FieldByName('TransactionID').AsInteger then |
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begin |
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if InLimboList.FieldByName('RequestedAction').AsString = 'Commit' then |
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Action := CommitAction |
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else |
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if InLimboList.FieldByName('RequestedAction').AsString = 'Rollback' then |
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Action := RollbackAction; |
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break; |
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end; |
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end; |
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end; |
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|
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procedure TLimboTransactionsForm.RollbackAllExecute(Sender: TObject); |
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begin |
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LimboTransactionValidation.GlobalAction := RollbackGlobal; |
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RunGFix; |
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InLimboList.FixErrors(RollbackGlobal,LimboReport.Lines); |
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end; |
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procedure TLimboTransactionsForm.ApplySelectedActionExecute(Sender: TObject); |
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begin |
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LimboTransactionValidation.GlobalAction := NoGlobalAction; |
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RunGFix; |
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InLimboList.FixErrors(NoGlobalAction,LimboReport.Lines); |
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end; |
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procedure TLimboTransactionsForm.Commit2PhaseAllExecute(Sender: TObject); |
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begin |
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LimboTransactionValidation.GlobalAction := RecoverTwoPhaseGlobal; |
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RunGFix; |
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InLimboList.FixErrors(RecoverTwoPhaseGlobal,LimboReport.Lines); |
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end; |
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|
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procedure TLimboTransactionsForm.CommitAllExecute(Sender: TObject); |
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begin |
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LimboTransactionValidation.GlobalAction := CommitGlobal; |
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RunGFix; |
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InLimboList.FixErrors(CommitGlobal,LimboReport.Lines); |
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end; |
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|
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procedure TLimboTransactionsForm.CommitAllUpdate(Sender: TObject); |
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InLimboList.Active := true; |
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end; |
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|
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procedure TLimboTransactionsForm.RunGFix; |
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begin |
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if not InLimboList.Active then |
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raise Exception.Create('Limbo Transactions List not available'); |
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|
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with InLimboList do |
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if State = dsEdit then Post; |
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LimboReport.Lines.Clear; |
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|
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with LimboTransactionValidation do |
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begin |
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LimboReport.Lines.Add('Starting Limbo transaction resolution'); |
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FixLimboTransactionErrors; |
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while not Eof do |
248 |
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begin |
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LimboReport.Lines.Add(GetNextLine); |
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Application.ProcessMessages; |
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end; |
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LimboReport.Lines.Add('Limbo Transaction resolution complete'); |
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Application.QueueAsyncCall(@DoRefresh,0); |
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end; |
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end; |
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|
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end. |
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