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clonetable.pas
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clonetable.pas
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unit clonetable;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, db, Dbf_Fields, dbf, FileUtil, RTTICtrls, Forms,
Controls, Graphics, Dialogs, StdCtrls, Grids, Buttons, ComCtrls, ExtCtrls;
type
{ TfrCloneTable }
TfrCloneTable = class(TForm)
ckDeleted: TCheckBox;
dbfDest: TDbf;
SaveDialog1: TSaveDialog;
sgFields: TStringGrid;
btnOK: TSpeedButton;
btnCancel: TSpeedButton;
sgIndexes: TStringGrid;
sbCloneTable: TStatusBar;
procedure btnOKClick(Sender: TObject);
procedure btnCancelClick(Sender: TObject);
private
{ private declarations }
public
{ public declarations }
end;
var
frCloneTable: TfrCloneTable;
SrcPath, SrcName: string;
dbfSrc: TDbf;
implementation
uses dbfpublics;
{$R *.lfm}
{ TfrCloneTable }
procedure TfrCloneTable.btnOKClick(Sender: TObject);
var
I: Integer;
Buf: Pointer;
fPath,fName: string;
begin
if not SaveDialog1.Execute then Exit;
if SaveDialog1.FileName = SrcPath+SrcName then
begin
MessageDlg(#10'Source file name is same as target file name!',
mtWarning, [mbOk], 0 );
Exit;
end;
fPath:=SaveDialog1.FileName;
fName:=ExtractFileName(fPath);
if FileExists(fPath) then
begin
I:=MessageDlg(#10+fName+' exist!'#10+
'Overwrite this file?',mtConfirmation,[mbYes,mbNo],0);
if I = mrNo then Exit;
end;
Application.ProcessMessages;
with dbfDest do
begin
if Active then Close;
Exclusive := True;
FilePath := ExtractFilePath(fPath);
TableName := fName;
case Level of
L3: TableLevel := 3;
L4: TableLevel := 4;
L7: TableLevel := 7;
end;
TmpFieldDefs := TDbfFieldDefs.Create(Self);
try
TmpFieldDefs.Assign(dbfSrc.DbfFieldDefs);
dbfDest.IndexDefs.Assign(dbfSrc.IndexDefs);
for I := 0 to TmpFieldDefs.Count-1 do
if TmpFieldDefs.Items[I].NativeFieldType = '+' then
TmpFieldDefs.Items[I].AutoInc := 0;
dbfDest.CreateTableEx(TmpFieldDefs);
finally
FreeAndNil(TmpFieldDefs);
end;
Sleep(500); //View this file
if MessageDlg(#10+fName+' created successfully!'+
#10'Click "Yes" to transfer the data from '+dbfSrc.TableName,
mtConfirmation,[mbYes,mbNo],0) <> mrYes then
begin
ModalResult := mrOk;
Exit;
end;
Screen.Cursor := crHourGlass;
Application.ProcessMessages;
dbfSrc.DisableControls;
dbfDest.Open;
try
dbfSrc.ShowDeleted := ckDeleted.Checked;
dbfSrc.First;
while not dbfSrc.EOF do
begin
dbfDest.Append;
for I:=0 to dbfSrc.Fields.Count-1 do
if not (dbfSrc.Fields[I].IsNull) then
dbfDest.Fields[I].Assign(dbfSrc.Fields[I]);
if ckDeleted.Checked and dbfSrc.IsDeleted then
begin
Buf := dbfSrc.ActiveBuffer; //Dbf1.GetCurrentBuffer;
pDbfRecord(dbfDest.ActiveBuffer)^.DeletedFlag := pDbfRecord(Buf)^.DeletedFlag;
end;
dbfDest.Post;
dbfSrc.Next;
end;
finally
dbfSrc.Close;
dbfDest.Close;
dbfSrc.EnableControls;
Screen.Cursor := crDefault;
end;
end;
ModalResult := mrOK;
end;
procedure TfrCloneTable.btnCancelClick(Sender: TObject);
begin
ModalResult := mrCancel;
end;
end.