mirror of
https://github.com/danieleteti/delphimvcframework.git
synced 2024-11-15 15:55:54 +01:00
145 lines
3.7 KiB
ObjectPascal
145 lines
3.7 KiB
ObjectPascal
unit MainFormU;
|
|
|
|
interface
|
|
|
|
uses
|
|
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
|
|
Vcl.Controls, Vcl.Forms, Vcl.Dialogs, FireDAC.Stan.Intf, FireDAC.Stan.Option,
|
|
FireDAC.Stan.Param, FireDAC.Stan.Error, FireDAC.DatS, FireDAC.Phys.Intf,
|
|
FireDAC.DApt.Intf, Data.DB, FireDAC.Comp.DataSet, FireDAC.Comp.Client,
|
|
Vcl.Grids, Vcl.DBGrids, Vcl.ExtCtrls, Vcl.StdCtrls, MVCFramework.RESTClient,
|
|
Vcl.DBCtrls;
|
|
|
|
type
|
|
TForm4 = class(TForm)
|
|
Panel1: TPanel;
|
|
DBGrid1: TDBGrid;
|
|
FDMemTable1: TFDMemTable;
|
|
FDMemTable1id: TIntegerField;
|
|
FDMemTable1code: TStringField;
|
|
FDMemTable1description: TStringField;
|
|
FDMemTable1price: TCurrencyField;
|
|
DataSource1: TDataSource;
|
|
btnGetListAsynch: TButton;
|
|
btnGetListSynch: TButton;
|
|
DBNavigator1: TDBNavigator;
|
|
procedure Button1Click(Sender: TObject);
|
|
procedure btnGetListAsynchClick(Sender: TObject);
|
|
procedure FormCreate(Sender: TObject);
|
|
procedure FDMemTable1BeforePost(DataSet: TDataSet);
|
|
procedure FDMemTable1BeforeDelete(DataSet: TDataSet);
|
|
procedure FormClose(Sender: TObject; var Action: TCloseAction);
|
|
private
|
|
CltAsynch: TRESTClient;
|
|
FLoading: Boolean;
|
|
Clt: TRESTClient;
|
|
{ Private declarations }
|
|
procedure ShowError(const AResponse: IRESTResponse);
|
|
public
|
|
procedure RefreshAsynch;
|
|
end;
|
|
|
|
var
|
|
Form4: TForm4;
|
|
|
|
implementation
|
|
|
|
uses
|
|
ObjectsMappers;
|
|
|
|
{$R *.dfm}
|
|
|
|
|
|
procedure TForm4.btnGetListAsynchClick(Sender: TObject);
|
|
begin
|
|
// this an asychronous request... just like you could do in jQuery
|
|
CltAsynch.Asynch(
|
|
procedure(Res: IRESTResponse)
|
|
begin
|
|
FDMemTable1.Close;
|
|
FDMemTable1.Open;
|
|
FLoading := true;
|
|
FDMemTable1.AppendFromJSONArrayString(Res.BodyAsString);
|
|
FLoading := false;
|
|
end,
|
|
nil, nil, true)
|
|
.doGET('/articles', []);
|
|
end;
|
|
|
|
procedure TForm4.Button1Click(Sender: TObject);
|
|
begin
|
|
RefreshAsynch;
|
|
end;
|
|
|
|
procedure TForm4.FDMemTable1BeforeDelete(DataSet: TDataSet);
|
|
var
|
|
Res: IRESTResponse;
|
|
begin
|
|
if FDMemTable1.State = dsBrowse then
|
|
Res := Clt.DSDelete('/articles', FDMemTable1id.AsString);
|
|
if not(Res.ResponseCode in [200, 201]) then
|
|
begin
|
|
ShowError(Res);
|
|
Abort;
|
|
end
|
|
else
|
|
Refresh;
|
|
end;
|
|
|
|
procedure TForm4.FDMemTable1BeforePost(DataSet: TDataSet);
|
|
var
|
|
Res: IRESTResponse;
|
|
begin
|
|
if not FLoading then
|
|
begin
|
|
if FDMemTable1.State = dsInsert then
|
|
Res := Clt.dsInsert('/articles', FDMemTable1)
|
|
else
|
|
Res := Clt.dsUpdate('/articles', FDMemTable1, FDMemTable1id.AsString);
|
|
if not(Res.ResponseCode in [200, 201]) then
|
|
begin
|
|
ShowError(Res);
|
|
Abort;
|
|
end
|
|
else
|
|
RefreshAsynch;
|
|
end;
|
|
end;
|
|
|
|
procedure TForm4.FormClose(Sender: TObject; var Action: TCloseAction);
|
|
begin
|
|
CltAsynch.Free;
|
|
Clt.Free;
|
|
end;
|
|
|
|
procedure TForm4.FormCreate(Sender: TObject);
|
|
begin
|
|
Clt := TRESTClient.Create('localhost', 8080);
|
|
|
|
// just for demo, here's the asych version. It is the same :-)
|
|
// check the GETLISTASYNCH button
|
|
CltAsynch := TRESTClient.Create('localhost', 8080);
|
|
end;
|
|
|
|
procedure TForm4.RefreshAsynch;
|
|
var
|
|
Res: IRESTResponse;
|
|
begin
|
|
// this a simple sychronous request...
|
|
Res := Clt.doGET('/articles', []);
|
|
FDMemTable1.Close;
|
|
FDMemTable1.Open;
|
|
FLoading := true;
|
|
FDMemTable1.AppendFromJSONArrayString(Res.BodyAsString);
|
|
FLoading := false;
|
|
end;
|
|
|
|
procedure TForm4.ShowError(const AResponse: IRESTResponse);
|
|
begin
|
|
ShowMessage(
|
|
AResponse.ResponseCode.ToString + ': ' + AResponse.ResponseText + sLineBreak +
|
|
AResponse.BodyAsJsonObject.Get('message').JsonValue.Value);
|
|
end;
|
|
|
|
end.
|