examples/services/BackupDlgUnit.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) 2015 Tony Whyman, MWA Software
 *  (http://www.mwasoftware.co.uk).
 *
 *  All Rights Reserved.
 *
 *  Contributor(s): ______________________________________.
 *
*) 
            
unit BackupDlgUnit;

{$mode objfpc}{$H+}

interface

uses
  Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs, StdCtrls,
  Buttons, ExtCtrls, IBServices;

type

  { TBackupDlg }

  TBackupDlg = class(TForm)
    Bevel1: TBevel;
    Button1: TButton;
    Button2: TButton;
    Edit1: TEdit;
    Edit2: TEdit;
    Edit3: TEdit;
    IBBackupService1: TIBBackupService;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    RadioButton1: TRadioButton;
    RadioButton2: TRadioButton;
    SaveDialog1: TSaveDialog;
    SpeedButton1: TSpeedButton;
    procedure FormClose(Sender: TObject; var CloseAction: TCloseAction);
    procedure FormShow(Sender: TObject);
    procedure SpeedButton1Click(Sender: TObject);
  private
    { private declarations }
  public
    { public declarations }
     procedure RunBackup;
 end;

var
  BackupDlg: TBackupDlg;

implementation

{$R *.lfm}

uses MainFormUnit;

{ TBackupDlg }

procedure TBackupDlg.SpeedButton1Click(Sender: TObject);
begin
  if SaveDialog1.Execute then
    Edit3.Text := SaveDialog1.Filename;
end;

procedure TBackupDlg.RunBackup;
var bakfile: TFileStream;
    BackupCount: integer;
begin
  bakfile := nil;
  MainForm.Memo1.Lines.Add('Starting Backup');
  if IBBackupService1.BackupFileLocation = flClientSide then
    bakfile := TFileStream.Create(IBBackupService1.BackupFile[0],fmCreate);
  try
    IBBackupService1.ServiceStart;
    while not IBBackupService1.Eof do
    begin
      case IBBackupService1.BackupFileLocation of
      flServerSide:
        MainForm.Memo1.Lines.Add(IBBackupService1.GetNextLine);
      flClientSide:
        IBBackupService1.WriteNextChunk(bakfile);
      end;
      Application.ProcessMessages;
    end;
    if bakfile <> nil then
      BackupCount := bakfile.Size;
  finally
    if bakfile <> nil then
      bakfile.Free;
  end;

  while IBBackupService1.IsServiceRunning do; {flush}

  {Report completion}
  case IBBackupService1.BackupFileLocation of
  flServerSide:
    begin
      MainForm.Memo1.Lines.Add('Backup Completed');
      MessageDlg('Backup Completed',mtInformation,[mbOK],0);
    end;
  flClientSide:
    begin
      MainForm.Memo1.Lines.Add(Format('Backup Completed - File Size = %d bytes',[BackupCount]));
      MessageDlg(Format('Backup Completed - File Size = %d bytes',[BackupCount]),mtInformation,[mbOK],0);
    end;
  end;
end;

procedure TBackupDlg.FormShow(Sender: TObject);
begin
  Edit1.Text := IBBackupService1.ServerName;
  if IBBackupService1.BackupFileLocation = flServerSide then
    RadioButton1.Checked := true
  else
    RadioButton2.Checked := true;
  Edit2.Text := IBBackupService1.DatabaseName;
  IBBackupService1.BackupFile.Clear;
end;

procedure TBackupDlg.FormClose(Sender: TObject; var CloseAction: TCloseAction);
begin
  if ModalResult <> mrOK then Exit;
  if Edit2.Text = '' then
    raise Exception.Create('A Database Name must be given');
  if Edit3.Text = '' then
    raise Exception.Create('A Backup File Name must be given');
  IBBackupService1.DatabaseName := Edit2.Text;
  IBBackupService1.BackupFile.Add(Edit3.Text);
  if RadioButton1.Checked then
     IBBackupService1.BackupFileLocation := flServerSide
  else
    IBBackupService1.BackupFileLocation := flClientSide;
end;

end.

Revision:	143
Committed:	Fri Feb 23 12:11:21 2018 UTC (6 years, 9 months ago) by tony
Content type:	text/x-pascal
File size:	4101 byte(s)
Log Message:	Fixes Merged
#	Content
1	(*
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) 2015 Tony Whyman, MWA Software
19	* (http://www.mwasoftware.co.uk).
20	*
21	* All Rights Reserved.
22	*
23	* Contributor(s): ______________________________________.
24	*
25	*)
26
27	unit BackupDlgUnit;
28
29	{$mode objfpc}{$H+}
30
31	interface
32
33	uses
34	Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs, StdCtrls,
35	Buttons, ExtCtrls, IBServices;
36
37	type
38
39	{ TBackupDlg }
40
41	TBackupDlg = class(TForm)
42	Bevel1: TBevel;
43	Button1: TButton;
44	Button2: TButton;
45	Edit1: TEdit;
46	Edit2: TEdit;
47	Edit3: TEdit;
48	IBBackupService1: TIBBackupService;
49	Label1: TLabel;
50	Label2: TLabel;
51	Label3: TLabel;
52	RadioButton1: TRadioButton;
53	RadioButton2: TRadioButton;
54	SaveDialog1: TSaveDialog;
55	SpeedButton1: TSpeedButton;
56	procedure FormClose(Sender: TObject; var CloseAction: TCloseAction);
57	procedure FormShow(Sender: TObject);
58	procedure SpeedButton1Click(Sender: TObject);
59	private
60	{ private declarations }
61	public
62	{ public declarations }
63	procedure RunBackup;
64	end;
65
66	var
67	BackupDlg: TBackupDlg;
68
69	implementation
70
71	{$R *.lfm}
72
73	uses MainFormUnit;
74
75	{ TBackupDlg }
76
77	procedure TBackupDlg.SpeedButton1Click(Sender: TObject);
78	begin
79	if SaveDialog1.Execute then
80	Edit3.Text := SaveDialog1.Filename;
81	end;
82
83	procedure TBackupDlg.RunBackup;
84	var bakfile: TFileStream;
85	BackupCount: integer;
86	begin
87	bakfile := nil;
88	MainForm.Memo1.Lines.Add('Starting Backup');
89	if IBBackupService1.BackupFileLocation = flClientSide then
90	bakfile := TFileStream.Create(IBBackupService1.BackupFile[0],fmCreate);
91	try
92	IBBackupService1.ServiceStart;
93	while not IBBackupService1.Eof do
94	begin
95	case IBBackupService1.BackupFileLocation of
96	flServerSide:
97	MainForm.Memo1.Lines.Add(IBBackupService1.GetNextLine);
98	flClientSide:
99	IBBackupService1.WriteNextChunk(bakfile);
100	end;
101	Application.ProcessMessages;
102	end;
103	if bakfile <> nil then
104	BackupCount := bakfile.Size;
105	finally
106	if bakfile <> nil then
107	bakfile.Free;
108	end;
109
110	while IBBackupService1.IsServiceRunning do; {flush}
111
112	{Report completion}
113	case IBBackupService1.BackupFileLocation of
114	flServerSide:
115	begin
116	MainForm.Memo1.Lines.Add('Backup Completed');
117	MessageDlg('Backup Completed',mtInformation,[mbOK],0);
118	end;
119	flClientSide:
120	begin
121	MainForm.Memo1.Lines.Add(Format('Backup Completed - File Size = %d bytes',[BackupCount]));
122	MessageDlg(Format('Backup Completed - File Size = %d bytes',[BackupCount]),mtInformation,[mbOK],0);
123	end;
124	end;
125	end;
126
127	procedure TBackupDlg.FormShow(Sender: TObject);
128	begin
129	Edit1.Text := IBBackupService1.ServerName;
130	if IBBackupService1.BackupFileLocation = flServerSide then
131	RadioButton1.Checked := true
132	else
133	RadioButton2.Checked := true;
134	Edit2.Text := IBBackupService1.DatabaseName;
135	IBBackupService1.BackupFile.Clear;
136	end;
137
138	procedure TBackupDlg.FormClose(Sender: TObject; var CloseAction: TCloseAction);
139	begin
140	if ModalResult <> mrOK then Exit;
141	if Edit2.Text = '' then
142	raise Exception.Create('A Database Name must be given');
143	if Edit3.Text = '' then
144	raise Exception.Create('A Backup File Name must be given');
145	IBBackupService1.DatabaseName := Edit2.Text;
146	IBBackupService1.BackupFile.Add(Edit3.Text);
147	if RadioButton1.Checked then
148	IBBackupService1.BackupFileLocation := flServerSide
149	else
150	IBBackupService1.BackupFileLocation := flClientSide;
151	end;
152
153	end.
154