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root/public/ibx/trunk/iblocaldb/IBXCreateDatabaseFromSQLDlgUnit.pas
Revision: 158
Committed: Thu Mar 1 11:23:33 2018 UTC (6 years, 1 month ago) by tony
Content type: text/x-pascal
File size: 3883 byte(s)
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# 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 IBXCreateDatabaseFromSQLDlgUnit;
28
29 {$mode objfpc}{$H+}
30
31 interface
32
33 uses
34 Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs, ExtCtrls,
35 StdCtrls, ComCtrls, ibxscript, IB, IBDatabase;
36
37 type
38
39 { TIBXCreateDatabaseFromSQLDlg }
40
41 TIBXCreateDatabaseFromSQLDlg = class(TForm)
42 Bevel1: TBevel;
43 IBXScript: TIBXScript;
44 Label1: TLabel;
45 ProgressBar: TProgressBar;
46 procedure FormShow(Sender: TObject);
47 procedure IBXScriptCreateDatabase(Sender: TObject;
48 var DatabaseFileName: string);
49 procedure IBXScriptProgressEvent(Sender: TObject; Reset: boolean;
50 value: integer);
51 private
52 FDatabasePath: string;
53 FFileName: string;
54 procedure DoRunScript(Data: PtrInt);
55 public
56 property FileName: string read FFileName write FFileName;
57 property DatabasePath: string read FDatabasePath write FDatabasePath;
58 end;
59
60 var
61 IBXCreateDatabaseFromSQLDlg: TIBXCreateDatabaseFromSQLDlg;
62
63 function CreateNewDatabase(aDatabase: TIBDatabase; DBArchive: string): boolean;
64
65 implementation
66
67 uses IBErrorCodes;
68
69 function CreateNewDatabase(aDatabase: TIBDatabase;
70 DBArchive: string): boolean;
71 begin
72 with TIBXCreateDatabaseFromSQLDlg.Create(Application) do
73 try
74 FileName := DBArchive;
75 IBXScript.Database := aDatabase;
76 IBXScript.Transaction := aDatabase.DefaultTransaction;
77 DatabasePath := aDatabase.DatabaseName;
78 Result := ShowModal = mrOK;
79 finally
80 Free
81 end
82 end;
83
84 {$R *.lfm}
85
86 { TIBXCreateDatabaseFromSQLDlg }
87
88 procedure TIBXCreateDatabaseFromSQLDlg.IBXScriptProgressEvent(Sender: TObject;
89 Reset: boolean; value: integer);
90 begin
91 if Reset then
92 ProgressBar.Max := value
93 else
94 ProgressBar.StepIt;
95 Application.ProcessMessages;
96 end;
97
98 procedure TIBXCreateDatabaseFromSQLDlg.DoRunScript(Data: PtrInt);
99 begin
100 try
101 ModalResult := mrCancel;
102 IBXScript.Database.CreateDatabase; {try to create the database}
103 repeat
104 try
105 if IBXScript.RunScript(FileName) then
106 ModalResult := mrOK;
107 break;
108 except on E:EIBInterBaseError do
109 begin
110 writeln(E.IBErrorCode);
111 if (E.IBErrorCode = isc_io_error) or (E.IBErrorCode = isc_db_or_file_exists) then
112 {script contains Create Database Statement}
113 begin
114 IBXScript.Database.Connected := true;
115 IBXScript.Database.DropDatabase;
116 {repeat above and let script create database}
117 end
118 else
119 raise;
120 end;
121 end;
122 until false;
123 with IBXScript.Transaction do
124 if InTransaction then Commit;
125 IBXScript.Database.Connected := false;
126 except on E:Exception do
127 begin
128 MessageDlg(E.Message,mtError,[mbOK],0);
129 Close;
130 end;
131 end;
132 end;
133
134 procedure TIBXCreateDatabaseFromSQLDlg.FormShow(Sender: TObject);
135 begin
136 ProgressBar.Position := 0;
137 Application.QueueAsyncCall(@DoRunScript,0);
138 end;
139
140 procedure TIBXCreateDatabaseFromSQLDlg.IBXScriptCreateDatabase(Sender: TObject;
141 var DatabaseFileName: string);
142 begin
143 DatabaseFileName := DatabasePath;
144 end;
145
146 end.
147