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unit UFormFields;
{$mode delphi}
interface
uses
Classes, SysUtils, FileUtil, Forms, Controls, Graphics, Dialogs,
ActnList, ComCtrls, Menus, UDatabase;
type
{ TFormFields }
TFormFields = class(TForm)
AAdd: TAction;
AOk: TAction;
ACancel: TAction;
ActionList1: TActionList;
AModify: TAction;
ARemove: TAction;
ListView1: TListView;
MenuItem1: TMenuItem;
MenuItem2: TMenuItem;
MenuItem3: TMenuItem;
PopupMenu1: TPopupMenu;
ToolBar1: TToolBar;
ToolButton1: TToolButton;
ToolButton2: TToolButton;
ToolButton3: TToolButton;
ToolButton4: TToolButton;
ToolButton5: TToolButton;
procedure AAddExecute(Sender: TObject);
procedure ACancelExecute(Sender: TObject);
procedure AModifyExecute(Sender: TObject);
procedure AOkExecute(Sender: TObject);
procedure ARemoveExecute(Sender: TObject);
procedure FormShow(Sender: TObject);
procedure ListView1Data(Sender: TObject; Item: TListItem);
procedure ListView1SelectItem(Sender: TObject; Item: TListItem;
Selected: Boolean);
private
{ private declarations }
public
Fields: TFields;
TableName: string;
procedure UpdateInterface;
procedure ReloadList;
end;
var
FormFields: TFormFields;
implementation
uses
UFormField;
{$R *.lfm}
resourcestring
SNewField = 'New field';
SFieldsNotSet = 'Fields not set';
STableFields = 'Table fields - %s';
{ TFormFields }
procedure TFormFields.FormShow(Sender: TObject);
var
I: Integer;
begin
for I := 0 to ToolBar1.ButtonCount - 1 do
ToolBar1.Buttons[I].Hint := ToolBar1.Buttons[I].Caption;
if not Assigned(Fields) then
raise Exception.Create(SFieldsNotSet);
Caption := Format(STableFields, [TableName]);
UpdateInterface;
ReloadList;
end;
procedure TFormFields.AAddExecute(Sender: TObject);
var
NewField: TField;
begin
NewField := TField.Create;
NewField.Table := Fields.Table;
NewField.Name := SNewField;
if Fields.Table.DbClient.ConnectProfile.ClientType.DataTypes.Count > 0 then
NewField.DataType := TDataType(Fields.Table.DbClient.ConnectProfile.ClientType.DataTypes[0]);
FormField.Load(NewField);
if FormField.ShowModal = mrOk then begin
FormField.Save(NewField);
Fields.Table.DbClient.Query('INSERT INTO ModelField ( Name , Caption , Model , DataType ) VALUES ( ' +
NewField.Name + ' , ' + NewField.TextBefore + ' , ' + TableName + ' , ' + NewField.DataType.Name + ' )');
ReloadList;
end else NewField.Free;
end;
procedure TFormFields.ACancelExecute(Sender: TObject);
begin
Close;
end;
procedure TFormFields.AModifyExecute(Sender: TObject);
begin
if Assigned(ListView1.Selected) then begin
FormField.Load(TField(ListView1.Selected.Data));
if FormField.ShowModal = mrOk then begin
FormField.Save(TField(ListView1.Selected.Data));
Fields.Table.DbClient.Query('UPDATE ModelField SET Caption = ' + TField(ListView1.Selected.Data).TextBefore +
' , DataType = ' + TField(ListView1.Selected.Data).DataType.Name +
' WHERE Model = ' + Fields.Table.Name +' , Name = ' + TField(ListView1.Selected.Data).Name);
ReloadList;
end;
end;
end;
procedure TFormFields.AOkExecute(Sender: TObject);
begin
ModalResult := mrOk;
end;
procedure TFormFields.ARemoveExecute(Sender: TObject);
begin
if Assigned(ListView1.Selected) then begin
Fields.Table.DbClient.Query('DELETE FROM ModelField WHERE Model = ' + Fields.Table.Name +
' , Name = ' + TField(ListView1.Selected.Data).Name);
ReloadList;
UpdateInterface;
end;
end;
procedure TFormFields.ListView1Data(Sender: TObject; Item: TListItem);
begin
if (Item.Index >= 0) and (Item.Index < Fields.Count) then
with TField(Fields[Item.Index]) do begin
Item.Caption := Name;
Item.SubItems.Add(DataType.Title);
Item.SubItems.Add(BoolToStr(Required));
Item.SubItems.Add(TextBefore);
Item.SubItems.Add(TextAfter);
Item.Data := Fields[Item.Index];
end;
end;
procedure TFormFields.ListView1SelectItem(Sender: TObject; Item: TListItem;
Selected: Boolean);
begin
UpdateInterface;
end;
procedure TFormFields.UpdateInterface;
begin
AModify.Enabled := Assigned(ListView1.Selected);
ARemove.Enabled := Assigned(ListView1.Selected);
end;
procedure TFormFields.ReloadList;
var
DbRows: TDbRows;
NewField: TField;
I: Integer;
begin
Fields.Clear;
DbRows := TDbRows.Create;
Fields.Table.DbClient.Query('SELECT * FROM ModelField WHERE Model = ' + Fields.Table.Name, DbRows);
for I := 0 to DbRows.Count - 1 do begin
NewField := Fields.AddNew(DbRows[I].Values['Name'], Fields.Table.DbClient.DbManager.DataTypes.SearchByName(DbRows[I].Values['DataType']));
NewField.TextBefore := DbRows[I].Values['Caption'];
end;
DbRows.Free;
ListView1.Items.Count := Fields.Count;
ListView1.Repaint;
end;
end.
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