iblocaldb/gui/IBXUpgradeDatabaseDlg.pas

(*
 *  IBX For Lazarus (Firebird Express)
 *
 *  The contents of this file are subject to the Initial Developer's
 *  Public License Version 1.0 (the "License"); you may not use this
 *  file except in compliance with the License. You may obtain a copy
 *  of the License here:
 *
 *    http://www.firebirdsql.org/index.php?op=doc&id=idpl
 *
 *  Software distributed under the License is distributed on an "AS
 *  IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 *  implied. See the License for the specific language governing rights
 *  and limitations under the License.
 *
 *  The Initial Developer of the Original Code is Tony Whyman.
 *
 *  The Original Code is (C) 2014 Tony Whyman, MWA Software
 *  (http://www.mwasoftware.co.uk).
 *
 *  All Rights Reserved.
 *
 *  Contributor(s): ______________________________________.
 *
*)
unit IBXUpgradeDatabaseDlg;

{$mode objfpc}{$H+}

interface

uses
  Classes, SysUtils, FileUtil, Forms, Controls,  Dialogs, StdCtrls,
  ComCtrls, ExtCtrls, IBDatabase, ibxscript, IBXUpgradeConfFile, IBXServices;

type
  TGetDatabaseVersionNo = procedure (Sender: TObject; var VersionNo: integer) of object;

  { TUpgradeDatabaseDlg }

  TUpgradeDatabaseDlg = class(TForm)
    UpdateTransaction: TIBTransaction;
    IBXScript: TIBXScript;
    Label1: TLabel;
    Panel1: TPanel;
    ProgressBar1: TProgressBar;
    Status: TLabel;
    Timer1: TTimer;
    procedure FormShow(Sender: TObject);
    procedure HandleCompletionEvent(Sender: TObject);
    procedure IBXScriptLogProc(Sender: TObject; Msg: string);
    procedure IBXScriptProgressEvent(Sender: TObject; Reset: boolean;
      value: integer);
  private
    FOnGetDatabaseVersionNo: TGetDatabaseVersionNo;
    FOnUpgradeStepCompleted: TNotifyEvent;
    FBackupService: TIBXServerSideBackupService;
    { private declarations }
    FUpgradeLog: TStrings;
    FTargetVersionNo: integer;
    FUpgradeConf: TUpgradeConfFile;
    FArchiveStub: string;
    procedure DoUpdate(Data: PtrInt);
    function CurrentDBVersionNo: integer;
  public
    { public declarations }
    SuccessfulCompletion: boolean;
    constructor Create(theOwner: TComponent); override;
    destructor Destroy; override;
    procedure Add2Log(Msg: string);
    property OnGetDatabaseVersionNo: TGetDatabaseVersionNo read FOnGetDatabaseVersionNo
             write FOnGetDatabaseVersionNo;
    property OnUpgradeStepCompleted: TNotifyEvent read FOnUpgradeStepCompleted write FOnUpgradeStepCompleted;
  end; 


var
  UpgradeDatabaseDlg: TUpgradeDatabaseDlg;

function RunUpgradeDatabase(aDatabase: TIBDatabase;
                            aBackupService: TIBXServerSideBackupService;
                            UpgradeConf: TUpgradeConfFile;
                            ArchiveStub: string;
                            TargetVersionNo: integer;
                            aOnGetDatabaseVersionNo: TGetDatabaseVersionNo;
                            aOnUpgradeStepCompleted: TNotifyEvent): boolean;


implementation

{$R *.lfm}

uses  IBXViewLogDig, IBXSaveDatabaseDlg;

resourcestring
  sNoUpgradeConf = 'An Upgrade Conf file must be provided';
  sUpdateMsg =       'Applying Update from %s';
  sUpdateStarted =   '%s Update Started';
  sUpdateEnded =     '%s Update Completed';
  sUpdateFailed    = 'Update Failed - %s';

function RunUpgradeDatabase(aDatabase: TIBDatabase;
  aBackupService: TIBXServerSideBackupService;
  UpgradeConf: TUpgradeConfFile; ArchiveStub: string; TargetVersionNo: integer;
  aOnGetDatabaseVersionNo: TGetDatabaseVersionNo;
  aOnUpgradeStepCompleted: TNotifyEvent): boolean;
begin
  if not assigned(UpgradeConf) then
    raise Exception.Create(sNoUpgradeConf);

  with TUpgradeDatabaseDlg.Create(Application) do
  try
    FTargetVersionNo := TargetVersionNo;
    FBackupService := aBackupService;
    FUpgradeConf := UpgradeConf;
    FArchiveStub := ArchiveStub;
    IBXScript.Database := aDatabase;
    UpdateTransaction.DefaultDatabase := aDatabase;
    IBXScript.GetParamValue := @UpgradeConf.GetParamValue;
    OnGetDatabaseVersionNo := aOnGetDatabaseVersionNo;
    OnUpgradeStepCompleted := aOnUpgradeStepCompleted;
    Result := ShowModal = mrOK;
  finally
    Free
  end;
end;

{ TUpgradeDatabaseDlg }

procedure TUpgradeDatabaseDlg.FormShow(Sender: TObject);
begin
  ProgressBar1.Position := 0;
  Status.Caption := '';
  FUpgradeLog.Clear;
  Application.QueueAsyncCall(@DoUpdate,0);
end;

procedure TUpgradeDatabaseDlg.HandleCompletionEvent(Sender: TObject);
begin
  Timer1.Enabled := false;
  if not SuccessfulCompletion then
  begin
    ShowViewLogDlg(FUpgradeLog);
    ModalResult := mrCancel
  end
  else
    ModalResult := mrOK;
end;

procedure TUpgradeDatabaseDlg.IBXScriptLogProc(Sender: TObject; Msg: string);
begin
  Add2Log(Msg);
end;

procedure TUpgradeDatabaseDlg.IBXScriptProgressEvent(Sender: TObject;
  Reset: boolean; value: integer);
begin
  if Reset then
  begin
    with ProgressBar1 do
    begin
      Position := 0;
      Max := value;
    end;
  end;
  ProgressBar1.StepIt;
  Application.ProcessMessages;
end;

procedure TUpgradeDatabaseDlg.Add2Log(Msg: string);
begin
  FUpgradeLog.Add(Msg);
end;

procedure TUpgradeDatabaseDlg.DoUpdate(Data: PtrInt);
var UpdateAvailable: boolean;
    UpgradeInfo: TUpgradeInfo;
    DBArchive: string;
    LastVersionNo: integer;
    CurVersionNo: integer;
begin
  SuccessfulCompletion := true;
  try
    CurVersionNo := CurrentDBVersionNo;
    repeat
      if CurVersionNo >= FTargetVersionNo then break;
      LastVersionNo := CurVersionNo;
      UpdateAvailable := FUpgradeConf.GetUpgradeInfo(CurVersionNo+1,UpgradeInfo);
      if UpdateAvailable then
      begin
        if UpgradeInfo.BackupDB then
        begin
          CreateDir(ExtractFileDir(FArchiveStub));
          DBArchive := FArchiveStub + '.' + IntToStr(CurrentDBVersionNo) + '.gbk';
          SaveDatabaseToArchive(FBackupService,DBArchive);
        end;
        Add2Log(UpgradeInfo.UserMessage);
        Status.Caption := UpgradeInfo.UserMessage;
        Application.ProcessMessages;
        Add2Log(Format(sUpdateMsg,[UpgradeInfo.UpdateSQLFile]));
        Add2Log(Format(sUpdateStarted,[DateTimeToStr(Now)]));
        if not IBXScript.PerformUpdate(UpgradeInfo.UpdateSQLFile,true) then
        begin
         Add2Log(Format(sUpdateFailed,[DateTimeToStr(Now)]));
         SuccessfulCompletion := false;
         UpdateTransaction.Rollback;
         break;
        end;
        UpdateTransaction.Commit;
        Add2Log(Format(sUpdateEnded,[DateTimeToStr(Now)]));
        if assigned(FOnUpgradeStepCompleted) then
          OnUpgradeStepCompleted(self);
      end;
      CurVersionNo := CurrentDBVersionNo;
    until not UpdateAvailable or (LastVersionNo = CurVersionNo);
  except on E:Exception do
   begin
    SuccessfulCompletion := false;
    Add2Log(E.Message);
   end;
  end;
  Timer1.Enabled := true;
end;

function TUpgradeDatabaseDlg.CurrentDBVersionNo: integer;
begin
  if assigned(FOnGetDatabaseVersionNo) then
    OnGetDatabaseVersionNo(self,Result)
  else
    Result := 0;
end;


constructor TUpgradeDatabaseDlg.Create(theOwner: TComponent);
begin
  inherited Create(theOwner);
  FUpgradeLog := TStringList.Create;
end;

destructor TUpgradeDatabaseDlg.Destroy;
begin
  if assigned(FUpgradeLog) then
    FUpgradeLog.Free;
  inherited Destroy;
end;

end.

Revision:	209
Committed:	Wed Mar 14 12:48:51 2018 UTC (6 years, 1 month ago) by tony
Content type:	text/x-pascal
File size:	7298 byte(s)
Log Message:	Fixes Merged
#	User	Rev	Content
1	tony	209	(*
2			* IBX For Lazarus (Firebird Express)
3			*
4			* The contents of this file are subject to the Initial Developer's
5			* Public License Version 1.0 (the "License"); you may not use this
6			* file except in compliance with the License. You may obtain a copy
7			* of the License here:
8			*
9			* http://www.firebirdsql.org/index.php?op=doc&id=idpl
10			*
11			* Software distributed under the License is distributed on an "AS
12			* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
13			* implied. See the License for the specific language governing rights
14			* and limitations under the License.
15			*
16			* The Initial Developer of the Original Code is Tony Whyman.
17			*
18			* The Original Code is (C) 2014 Tony Whyman, MWA Software
19			* (http://www.mwasoftware.co.uk).
20			*
21			* All Rights Reserved.
22			*
23			* Contributor(s): ______________________________________.
24			*
25			*)
26			unit IBXUpgradeDatabaseDlg;
27
28			{$mode objfpc}{$H+}
29
30			interface
31
32			uses
33			Classes, SysUtils, FileUtil, Forms, Controls, Dialogs, StdCtrls,
34			ComCtrls, ExtCtrls, IBDatabase, ibxscript, IBXUpgradeConfFile, IBXServices;
35
36			type
37			TGetDatabaseVersionNo = procedure (Sender: TObject; var VersionNo: integer) of object;
38
39			{ TUpgradeDatabaseDlg }
40
41			TUpgradeDatabaseDlg = class(TForm)
42			UpdateTransaction: TIBTransaction;
43			IBXScript: TIBXScript;
44			Label1: TLabel;
45			Panel1: TPanel;
46			ProgressBar1: TProgressBar;
47			Status: TLabel;
48			Timer1: TTimer;
49			procedure FormShow(Sender: TObject);
50			procedure HandleCompletionEvent(Sender: TObject);
51			procedure IBXScriptLogProc(Sender: TObject; Msg: string);
52			procedure IBXScriptProgressEvent(Sender: TObject; Reset: boolean;
53			value: integer);
54			private
55			FOnGetDatabaseVersionNo: TGetDatabaseVersionNo;
56			FOnUpgradeStepCompleted: TNotifyEvent;
57			FBackupService: TIBXServerSideBackupService;
58			{ private declarations }
59			FUpgradeLog: TStrings;
60			FTargetVersionNo: integer;
61			FUpgradeConf: TUpgradeConfFile;
62			FArchiveStub: string;
63			procedure DoUpdate(Data: PtrInt);
64			function CurrentDBVersionNo: integer;
65			public
66			{ public declarations }
67			SuccessfulCompletion: boolean;
68			constructor Create(theOwner: TComponent); override;
69			destructor Destroy; override;
70			procedure Add2Log(Msg: string);
71			property OnGetDatabaseVersionNo: TGetDatabaseVersionNo read FOnGetDatabaseVersionNo
72			write FOnGetDatabaseVersionNo;
73			property OnUpgradeStepCompleted: TNotifyEvent read FOnUpgradeStepCompleted write FOnUpgradeStepCompleted;
74			end;
75
76
77			var
78			UpgradeDatabaseDlg: TUpgradeDatabaseDlg;
79
80			function RunUpgradeDatabase(aDatabase: TIBDatabase;
81			aBackupService: TIBXServerSideBackupService;
82			UpgradeConf: TUpgradeConfFile;
83			ArchiveStub: string;
84			TargetVersionNo: integer;
85			aOnGetDatabaseVersionNo: TGetDatabaseVersionNo;
86			aOnUpgradeStepCompleted: TNotifyEvent): boolean;
87
88
89			implementation
90
91			{$R *.lfm}
92
93			uses IBXViewLogDig, IBXSaveDatabaseDlg;
94
95			resourcestring
96			sNoUpgradeConf = 'An Upgrade Conf file must be provided';
97			sUpdateMsg = 'Applying Update from %s';
98			sUpdateStarted = '%s Update Started';
99			sUpdateEnded = '%s Update Completed';
100			sUpdateFailed = 'Update Failed - %s';
101
102			function RunUpgradeDatabase(aDatabase: TIBDatabase;
103			aBackupService: TIBXServerSideBackupService;
104			UpgradeConf: TUpgradeConfFile; ArchiveStub: string; TargetVersionNo: integer;
105			aOnGetDatabaseVersionNo: TGetDatabaseVersionNo;
106			aOnUpgradeStepCompleted: TNotifyEvent): boolean;
107			begin
108			if not assigned(UpgradeConf) then
109			raise Exception.Create(sNoUpgradeConf);
110
111			with TUpgradeDatabaseDlg.Create(Application) do
112			try
113			FTargetVersionNo := TargetVersionNo;
114			FBackupService := aBackupService;
115			FUpgradeConf := UpgradeConf;
116			FArchiveStub := ArchiveStub;
117			IBXScript.Database := aDatabase;
118			UpdateTransaction.DefaultDatabase := aDatabase;
119			IBXScript.GetParamValue := @UpgradeConf.GetParamValue;
120			OnGetDatabaseVersionNo := aOnGetDatabaseVersionNo;
121			OnUpgradeStepCompleted := aOnUpgradeStepCompleted;
122			Result := ShowModal = mrOK;
123			finally
124			Free
125			end;
126			end;
127
128			{ TUpgradeDatabaseDlg }
129
130			procedure TUpgradeDatabaseDlg.FormShow(Sender: TObject);
131			begin
132			ProgressBar1.Position := 0;
133			Status.Caption := '';
134			FUpgradeLog.Clear;
135			Application.QueueAsyncCall(@DoUpdate,0);
136			end;
137
138			procedure TUpgradeDatabaseDlg.HandleCompletionEvent(Sender: TObject);
139			begin
140			Timer1.Enabled := false;
141			if not SuccessfulCompletion then
142			begin
143			ShowViewLogDlg(FUpgradeLog);
144			ModalResult := mrCancel
145			end
146			else
147			ModalResult := mrOK;
148			end;
149
150			procedure TUpgradeDatabaseDlg.IBXScriptLogProc(Sender: TObject; Msg: string);
151			begin
152			Add2Log(Msg);
153			end;
154
155			procedure TUpgradeDatabaseDlg.IBXScriptProgressEvent(Sender: TObject;
156			Reset: boolean; value: integer);
157			begin
158			if Reset then
159			begin
160			with ProgressBar1 do
161			begin
162			Position := 0;
163			Max := value;
164			end;
165			end;
166			ProgressBar1.StepIt;
167			Application.ProcessMessages;
168			end;
169
170			procedure TUpgradeDatabaseDlg.Add2Log(Msg: string);
171			begin
172			FUpgradeLog.Add(Msg);
173			end;
174
175			procedure TUpgradeDatabaseDlg.DoUpdate(Data: PtrInt);
176			var UpdateAvailable: boolean;
177			UpgradeInfo: TUpgradeInfo;
178			DBArchive: string;
179			LastVersionNo: integer;
180			CurVersionNo: integer;
181			begin
182			SuccessfulCompletion := true;
183			try
184			CurVersionNo := CurrentDBVersionNo;
185			repeat
186			if CurVersionNo >= FTargetVersionNo then break;
187			LastVersionNo := CurVersionNo;
188			UpdateAvailable := FUpgradeConf.GetUpgradeInfo(CurVersionNo+1,UpgradeInfo);
189			if UpdateAvailable then
190			begin
191			if UpgradeInfo.BackupDB then
192			begin
193			CreateDir(ExtractFileDir(FArchiveStub));
194			DBArchive := FArchiveStub + '.' + IntToStr(CurrentDBVersionNo) + '.gbk';
195			SaveDatabaseToArchive(FBackupService,DBArchive);
196			end;
197			Add2Log(UpgradeInfo.UserMessage);
198			Status.Caption := UpgradeInfo.UserMessage;
199			Application.ProcessMessages;
200			Add2Log(Format(sUpdateMsg,[UpgradeInfo.UpdateSQLFile]));
201			Add2Log(Format(sUpdateStarted,[DateTimeToStr(Now)]));
202			if not IBXScript.PerformUpdate(UpgradeInfo.UpdateSQLFile,true) then
203			begin
204			Add2Log(Format(sUpdateFailed,[DateTimeToStr(Now)]));
205			SuccessfulCompletion := false;
206			UpdateTransaction.Rollback;
207			break;
208			end;
209			UpdateTransaction.Commit;
210			Add2Log(Format(sUpdateEnded,[DateTimeToStr(Now)]));
211			if assigned(FOnUpgradeStepCompleted) then
212			OnUpgradeStepCompleted(self);
213			end;
214			CurVersionNo := CurrentDBVersionNo;
215			until not UpdateAvailable or (LastVersionNo = CurVersionNo);
216			except on E:Exception do
217			begin
218			SuccessfulCompletion := false;
219			Add2Log(E.Message);
220			end;
221			end;
222			Timer1.Enabled := true;
223			end;
224
225			function TUpgradeDatabaseDlg.CurrentDBVersionNo: integer;
226			begin
227			if assigned(FOnGetDatabaseVersionNo) then
228			OnGetDatabaseVersionNo(self,Result)
229			else
230			Result := 0;
231			end;
232
233
234			constructor TUpgradeDatabaseDlg.Create(theOwner: TComponent);
235			begin
236			inherited Create(theOwner);
237			FUpgradeLog := TStringList.Create;
238			end;
239
240			destructor TUpgradeDatabaseDlg.Destroy;
241			begin
242			if assigned(FUpgradeLog) then
243			FUpgradeLog.Free;
244			inherited Destroy;
245			end;
246
247			end.
248