Componentes.Terceros.jvcl/official/3.00/examples/RaLib/RaDBMove/fJvDBMove.pas

{******************************************************************

                       JEDI-VCL Demo

 Copyright (C) 2002 Project JEDI

 Original author:

 Contributor(s):

 You may retrieve the latest version of this file at the JEDI-JVCL
 home page, located at http://jvcl.sourceforge.net

 The contents of this file are used with permission, subject to
 the Mozilla Public License Version 1.1 (the "License"); you may
 not use this file except in compliance with the License. You may
 obtain a copy of the License at
 http://www.mozilla.org/MPL/MPL-1_1Final.html

 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.

******************************************************************}

unit fJvDBMove;

interface

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  Grids, DBGrids, JvProgressComponent, DB, DBTables, JvBDESQLScript,
  JvComponent, JvBDEMove, ExtCtrls, StdCtrls, Buttons, ComCtrls;

type
  TForm1 = class(TForm)
    tSource1: TTable;
    dsSource1: TDataSource;
    tSource2: TTable;
    dsSource2: TDataSource;
    PageControl1: TPageControl;
    TabSheet1: TTabSheet;
    DBGrid1: TDBGrid;
    DBGrid2: TDBGrid;
    Label1: TLabel;
    Label2: TLabel;
    Label3: TLabel;
    Label4: TLabel;
    TabSheet2: TTabSheet;
    TabSheet3: TTabSheet;
    DBGrid3: TDBGrid;
    DBGrid4: TDBGrid;
    Label7: TLabel;
    Label9: TLabel;
    RADBMove1: TJvDBMove;
    RASQLScript1: TJvBDESQLScript;
    DestinationDatabase: TDatabase;
    BitBtn1: TBitBtn;
    BitBtn2: TBitBtn;
    tDestination1: TTable;
    dsDestination1: TDataSource;
    tDestination2: TTable;
    dsDestination2: TDataSource;
    Label5: TLabel;
    Label6: TLabel;
    Label8: TLabel;
    TabSheet4: TTabSheet;
    BitBtn3: TBitBtn;
    RAProgressForm1: TJvProgressComponent;
    Button1: TButton;
    Panel1: TPanel;
    Label10: TLabel;
    GroupBox1: TGroupBox;
    Memo1: TMemo;
    Label11: TLabel;
    Label12: TLabel;
    Memo2: TMemo;
    Label13: TLabel;
    Memo3: TMemo;
    BitBtn4: TBitBtn;
    procedure BitBtn1Click(Sender: TObject);
    procedure BitBtn2Click(Sender: TObject);
    procedure RADBMove1MoveRecord(Sender: TJvDBMove; Table: TTable;
      var Action: TMoveAction);
    procedure FormCreate(Sender: TObject);
    procedure BitBtn3Click(Sender: TObject);
    procedure RAProgressForm1Show(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure BitBtn4Click(Sender: TObject);
  private
    Table1Uni: integer;
    Table2Uni: integer;
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

uses
  JvJCLUtils, 
  JvBDEUtils, JvDBUtils;

{$R *.DFM}

procedure TForm1.BitBtn1Click(Sender: TObject);
begin
  DestinationDatabase.Close;
  DestinationDatabase.Params.Clear;
  ForceDirectories('C:\TEMP\RALib.DBMoveTest');
  DestinationDatabase.Params.Add('PATH=' + 'C:\TEMP\RALib.DBMoveTest');
  DestinationDatabase.Open;
  try
    JvBDEUtils.ExecuteSQLScript(DestinationDatabase,
      'drop table "CUSTOMER.DB";', ctAll, nil, 0);
    JvBDEUtils.ExecuteSQLScript(DestinationDatabase,
      'drop table "MYORDERS.DB";', ctAll, nil, 0);
  except
    { All Ok }
  end;
  RASQLScript1.Execute;
end;

procedure TForm1.BitBtn2Click(Sender: TObject);
begin
  Table1Uni := 1;
  Table2Uni := 1;
  RAProgressForm1.Execute;
  // see RAProgressForm1.OnShow
end;

procedure TForm1.BitBtn3Click(Sender: TObject);
begin
  try
    tDestination1.Close;
    tDestination2.Close;
    JvBDEUtils.ExecuteSQLScript(DestinationDatabase,
      'drop table "CUSTOMER.DB";', ctAll, nil, 0);
    JvBDEUtils.ExecuteSQLScript(DestinationDatabase,
      'drop table "MYORDERS.DB";', ctAll, nil, 0);
  except
    { All Ok }
  end;
end;

procedure TForm1.RAProgressForm1Show(Sender: TObject);
begin
  RADBMove1.Execute;
  tDestination1.Open;
  tDestination2.Open;
end;

procedure TForm1.RADBMove1MoveRecord(Sender: TJvDBMove; Table: TTable;
  var Action: TMoveAction);
begin
  if Cmp(Table.TableName, 'CUSTOMER') then
  begin
    Table.Fields[0].AsInteger := Table1Uni;
    inc(Table1Uni);
  end
  else if Cmp(Table.TableName, 'MYORDERS') then
  begin
    Table.Fields[0].AsInteger := Table2Uni;
    inc(Table2Uni);
  end;
  RAProgressForm1.InfoLabel := Table.Fields[1].AsString;
  RAProgressForm1.ProgressMax := RADBMove1.RecordCount;
  RAProgressForm1.ProgressPosition := RADBMove1.CurrentRecord;
  Application.ProcessMessages;
  if RAProgressForm1.Cancel then
    Abort;
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  PageControl1.ActivePage := TabSheet1;
  tSource1.Open;
  tSource2.Open;
  Memo1.Lines := RADBMove1.Tables;
  Memo2.Lines := RADBMove1.References;
  Memo3.Lines := RADBMove1.Mappings;
end;



procedure TForm1.Button1Click(Sender: TObject);
begin
  PageControl1.SelectNextPage(true);
end;

procedure TForm1.BitBtn4Click(Sender: TObject);
begin
  Close;
end;

end.