rmd_bde.pas

report machine 2.3 功能强大

  except
  end;  
end;

function TRMDBDETable.GetTableNames: string;
var
  i: Integer;
  sl: TStringList;
begin
  Result := '';
  if FTable.DatabaseName <> '' then
  begin
    sl := TStringList.Create;
    try
      try
        Session.GetTableNames(FTable.DatabaseName, '', True, False, sl);
        sl.Sort;
        for i := 0 to sl.Count - 1 do
          Result := Result + sl[i] + ';';
      except;
      end;
    finally
      sl.Free;
    end;
  end;
end;

procedure TRMDBDETable.SetPropValue(Index: string; Value: Variant);
var
  d: TDataset;
begin
  inherited SetPropValue(Index, Value);
  Index := AnsiUpperCase(Index);
  if Index = 'INDEXNAME' then
    FTable.IndexName := Value
  else if Index = 'MASTERSOURCE' then
  begin
    d := RMFindComponent(FTable.Owner, Value) as TDataSet;
    FTable.MasterSource := RMGetDataSource(FTable.Owner, d);
  end
  else if Index = 'MASTERFIELDS' then
    FTable.MasterFields := Value
  else if Index = 'TABLENAME' then
  begin
    FTable.Close;
    FTable.TableName := Value;
  end
  else if index = 'DATABASE' then
  begin
    FTable.Close;
    FTable.DatabaseName := Value;
  end;
end;

function TRMDBDETable.GetPropValue(Index: string): Variant;
begin
  Index := AnsiUpperCase(Index);
  Result := inherited GetPropValue(Index);
  if Result <> Null then Exit;
  if Index = 'INDEXNAME' then
    Result := FTable.IndexName
  else if Index = 'MASTERSOURCE' then
    Result := RMGetDataSetName(FTable.Owner, FTable.MasterSource)
  else if Index = 'MASTERFIELDS' then
    Result := FTable.MasterFields
  else if Index = 'TABLENAME' then
    Result := FTable.TableName
  else if Index = 'DATABASE' then
    Result := FTable.DatabaseName
end;


{------------------------------------------------------------------------------}
{------------------------------------------------------------------------------}
{TRMDBDEQuery}

constructor TRMDBDEQuery.Create;
begin
  inherited Create;
  FQuery := TQuery.Create(RMDialogForm);
  DataSet := FQuery;

  Component := FQuery;
  BaseName := 'Query';
  Bmp.LoadFromResourceName(hInstance, 'RMD_BDEQUERY');
end;

procedure TRMDBDEQuery.LoadFromStream(Stream: TStream);
begin
  inherited LoadFromStream(Stream);
end;

procedure TRMDBDEQuery.SaveToStream(Stream: TStream);
begin
	LVersion := 0;
  inherited SaveToStream(Stream);
end;

function TRMDBDEQuery.GetDatabases: string;
var
  i: Integer;
  sl: TStringList;
begin
  Result := '';
  sl := TStringList.Create;
  Session.GetAliasNames(sl);
  sl.Sort;
  for i := 0 to sl.Count - 1 do
    Result := Result + sl[i] + ';';
  sl.Free;
end;

procedure TRMDBDEQuery.GetTableNames(DB: string; Strings: TStrings);
var
  sl: TStringList;
begin
  sl := TStringList.Create;
  try
    try
      Session.GetTableNames(DB, '', True, False, sl);
      sl.Sort;
      Strings.Assign(sl);
    except;
    end;
  finally
    sl.Free;
  end;
end;

procedure TRMDBDEQuery.GetTableFieldNames(const DB, TName: string; sl: TStrings);
var
  i: Integer;
  lStrings: TStringList;
  t: TTable;
begin
  lStrings := TStringList.Create;
  t := TTable.Create(RMDialogForm);
  try
    t.DatabaseName := DB;
    t.TableName := tName;
    try
      t.FieldDefs.UpDate;
      for i := 0 to t.FieldDefs.Count - 1 do
        lStrings.Add(t.FieldDefs.Items[i].Name);
      lStrings.Sort;
      sl.Assign(lStrings);
    except;
    end;
  finally
    lStrings.Free;
    t.Free;
  end;
end;

procedure TRMDBDEQuery.SetPropValue(Index: string; Value: Variant);
var
  d: TComponent;
begin
  inherited SetPropValue(Index, Value);
  Index := AnsiUpperCase(Index);
  if index = 'DATABASE' then
  begin
    FQuery.Close;
    FQuery.DatabaseName := Value;
  end
  else if Index = 'DATASOURCE' then
  begin
    d := RMFindComponent(FQuery.Owner, Value);
    FQuery.DataSource := RMGetDataSource(FQuery.Owner, TDataSet(d));
  end
  else if index = 'PARAMS.COUNT' then
  begin
  end
  else if Index = 'SQL' then
  begin
    FQuery.Close;
    FQuery.SQL.Text := Value;
  end
end;

function TRMDBDEQuery.GetPropValue(Index: string): Variant;
begin
  Index := AnsiUpperCase(Index);
  Result := inherited GetPropValue(Index);
  if Result <> Null then Exit;
  if Index = 'DATABASE' then
    Result := FQuery.DatabaseName
  else if Index = 'DATASOURCE' then
    Result := RMGetDataSetName(FQuery.Owner, FQuery.DataSource)
  else if Index = 'PARAMS.COUNT' then
    Result := FQuery.Params.Count
  else if Index = 'SQL' then
    Result := FQuery.SQL.Text
  else if Index = 'SQL.COUNT' then
    Result := FQuery.SQL.Count
end;

function TRMDBDEQuery.DoMethod(const MethodName: String; Par1, Par2, Par3: Variant): Variant;
begin
  Result := inherited DoMethod(MethodName, Par1, Par2, Par3);
  if Result = Null then
    Result := LinesMethod(FQuery.SQL, MethodName, 'SQL', Par1, Par2, Par3);
  if MethodName = 'EXECSQL' then
  begin
  	OnBeforeOpenQueryEvent(FQuery);
    FQuery.ExecSQL;
  end;
end;

function TRMDBDEQuery.GetParamName(Index: Integer): string;
begin
  Result := FQuery.Params[Index].Name;
end;

function TRMDBDEQuery.GetParamType(Index: Integer): TFieldType;
begin
  Result := FQuery.Params[Index].DataType;
end;

procedure TRMDBDEQuery.SetParamType(Index: Integer; Value: TFieldType);
begin
  FQuery.Params[Index].DataType := Value;
end;

function TRMDBDEQuery.GetParamKind(Index: Integer): TRMParamKind;
begin
  Result := rmpkValue;
  if not FQuery.Params[Index].Bound then
    Result := rmpkAssignFromMaster;
end;

procedure TRMDBDEQuery.SetParamKind(Index: Integer; Value: TRMParamKind);
begin
  if Value = rmpkAssignFromMaster then
  begin
    FQuery.Params[Index].Bound := False;
    FParams.Delete(FParams.IndexOf(FQuery.Params[Index].Name));
  end
  else
  begin
    FQuery.Params[Index].Clear;
    FQuery.Params[Index].Bound := True;
    FParams[FQuery.Params[Index].Name] := '';
  end;
end;

function TRMDBDEQuery.GetParamText(Index: Integer): string;
begin
  Result := '';
  if ParamKind[Index] = rmpkValue then
    Result := FParams[FQuery.Params[Index].Name];
end;

procedure TRMDBDEQuery.SetParamText(Index: Integer; Value: string);
begin
  if ParamKind[Index] = rmpkValue then
    FParams[FQuery.Params[Index].Name] := Value;
end;

function TRMDBDEQuery.GetParamValue(Index: Integer): Variant;
begin
  Result := FQuery.Params[Index].Value;
end;

procedure TRMDBDEQuery.SetParamValue(Index: Integer; Value: Variant);
begin
  FQuery.Params[Index].Value := Value;
end;

{------------------------------------------------------------------------------}
{------------------------------------------------------------------------------}
{TDBEditForm}

procedure TRMDFormBDEDBProp.Localize;
begin
	Font.Name := RMLoadStr(SRMDefaultFontName);
  Font.Size := StrToInt(RMLoadStr(SRMDefaultFontSize));
  Font.Charset := StrToInt(RMLoadStr(SCharset));

  GroupBox1.Caption := RMLoadStr(rmRes + 3233);
  Label4.Caption := RMLoadStr(rmRes + 3234);
  Label1.Caption := RMLoadStr(rmRes + 3235);
  Label2.Caption := RMLoadStr(rmRes + 3236);
  Label3.Caption := RMLoadStr(rmres + 3237);
  btnDefaultsParam.Caption := RMLoadStr(rmRes + 3238);
  btnClearParam.Caption := RMLoadStr(rmRes + 3239);
  btnPath.Caption := RMLoadStr(rmRes + 3240);
  btnOK.Caption := RMLoadStr(SOK);
  btnCancel.Caption := RMLoadStr(SCancel);
end;

function TRMDFormBDEDBProp.Edit: Boolean;
begin
  edtDBName.Text := FDatabase.DatabaseName;
  cmbAliasName.Text := FDatabase.AliasName;
  cmbDriverName.Text := FDatabase.DriverName;
  memDatabaseParams.Lines := FDatabase.Params;
  Result := False;
  if ShowModal = mrOk then
  begin
    FDatabase.DatabaseName := edtDBName.Text;
    if cmbDriverName.Text <> '' then
      FDatabase.DriverName := cmbDriverName.Text
    else
      FDatabase.AliasName := cmbAliasName.Text;
    FDatabase.Params := memDatabaseParams.Lines;
    Result := True;
  end;
end;

procedure TRMDFormBDEDBProp.cmbAliasNameChange(Sender: TObject);
begin
  cmbDriverName.Text := '';
end;

procedure TRMDFormBDEDBProp.cmbAliasNameDropDown(Sender: TObject);
begin
  cmbAliasName.Items.Clear;
  FDatabase.Session.GetAliasNames(cmbAliasName.Items);
end;

procedure TRMDFormBDEDBProp.cmbDriverNameChange(Sender: TObject);
begin
  cmbAliasName.Text := '';
end;

procedure TRMDFormBDEDBProp.cmbDriverNameDropDown(Sender: TObject);
begin
  cmbDriverName.Items.Clear;
  FDatabase.Session.GetDriverNames(cmbDriverName.Items);
end;

procedure TRMDFormBDEDBProp.btnDefaultsParamClick(Sender: TObject);
var
  AddPassword: Boolean;
begin
  memDatabaseParams.Clear;
  AddPassword := False;
  if cmbDriverName.Text <> '' then
  begin
    FDatabase.Session.GetDriverParams(cmbDriverName.Text, memDatabaseParams.Lines);
    AddPassword := cmbDriverName.Text <> szCFGDBSTANDARD;
  end
  else if cmbAliasName.Text <> '' then
  begin
    FDatabase.Session.GetAliasParams(cmbAliasName.Text, memDatabaseParams.Lines);
    AddPassword := FDatabase.Session.GetAliasDriverName(cmbAliasName.Text) <> szCFGDBSTANDARD;
  end;

  if AddPassword then memDatabaseParams.Lines.Add('PASSWORD=');
end;

procedure TRMDFormBDEDBProp.btnClearParamClick(Sender: TObject);
begin
  memDatabaseParams.Clear;
end;

procedure TRMDFormBDEDBProp.btnPathClick(Sender: TObject);
var
  str: string;
begin
  if RMSelectDirectory(RMLoadStr(rmRes + 3252), '', str) then
    memDatabaseParams.Lines.Values['PATH'] := str;
end;

procedure TRMDFormBDEDBProp.btnOKClick(Sender: TObject);
begin
  ModalResult := mrNone;
  try
    FDatabase.ValidateName(edtDBName.Text);
  except
    edtDBName.SetFocus;
    raise;
  end;
  if FDatabase.Connected then
  begin
    if MessageDlg(SDisconnectDatabase, mtConfirmation,
      mbOkCancel, 0) <> mrOk then Exit;
    FDatabase.Close;
  end;
  ModalResult := mrOk;
end;

procedure TRMDFormBDEDBProp.FormCreate(Sender: TObject);
begin
	Localize;
end;

initialization
  RMRegisterControl(TRMDBDEDatabase, 'RMD_BDEDB', RMLoadStr(SInsertDB));
  RMRegisterControl(TRMDBDETable, 'RMD_BDETABLE', RMLoadStr(SInsertTable));
  RMRegisterControl(TRMDBDEQuery, 'RMD_BDEQUERY', RMLoadStr(SInsertQuery));

finalization

{$ENDIF}
end.