delphimvcframework/samples/winecellarserver/MainDataModuleUnit.pas
Daniele Teti 00d5a9699a - Config[TMVCConfigKey.FallbackResource] is served only if request path is empty or /.
- Now the JSON-RPC executor provides methods to handle HTTP headers for JSON-RPC requests and notifications.
- FIX for [issue #141](https://github.com/danieleteti/delphimvcframework/issues/141)
- `TDataSetHolder` is a new render that is able to render a dataset with a set of custom metadata (eg `count`,`page` etc). Check [issue #137](https://github.com/danieleteti/delphimvcframework/issues/137)
2018-08-05 20:31:56 +02:00

122 lines
2.9 KiB
ObjectPascal

unit MainDataModuleUnit;
interface
uses
System.SysUtils,
System.Classes,
Data.DB,
Data.SqlExpr,
{$IF CompilerVersion <= 27}
Data.DBXJSON,
{$ELSE}
System.JSON,
{$ENDIF}
FireDAC.Stan.Intf,
FireDAC.Stan.Option,
FireDAC.Stan.Error,
FireDAC.UI.Intf,
FireDAC.Phys.Intf,
FireDAC.Stan.Def,
FireDAC.Stan.Pool,
FireDAC.Stan.Async,
FireDAC.Phys,
FireDAC.Comp.Client,
FireDAC.Stan.Param,
FireDAC.DatS,
FireDAC.DApt.Intf,
FireDAC.DApt,
FireDAC.Comp.DataSet,
FireDAC.Phys.IBBase,
FireDAC.Phys.FB,
WinesBO,
FireDAC.Phys.FBDef,
FireDAC.VCLUI.Wait;
type
TWineCellarDataModule = class(TDataModule)
Connection: TFDConnection;
qryWines: TFDQuery;
updWines: TFDUpdateSQL;
FDPhysFBDriverLink1: TFDPhysFBDriverLink;
procedure ConnectionBeforeConnect(Sender: TObject);
public
function GetWineById(id: Integer): TDataSet;
function FindWines(Search: string): TDataSet;
function GetAllWines: TDataSet;
procedure AddWine(AWine: TWine);
procedure UpdateWine(AWine: TWine);
procedure DeleteWine(id: Integer);
end;
implementation
{$R *.dfm}
uses
System.StrUtils,
Data.DBXCommon,
MVCFramework.FireDAC.Utils;
{ TCellarSM }
procedure TWineCellarDataModule.AddWine(AWine: TWine);
begin
TFireDACUtils.ObjectToParameters(updWines.Commands[arInsert].Params, AWine, 'NEW_');
updWines.Commands[arInsert].Execute;
end;
procedure TWineCellarDataModule.DeleteWine(id: Integer);
begin
updWines.Commands[arDelete].ParamByName('OLD_ID').AsInteger := id;
updWines.Commands[arDelete].Execute;
end;
procedure TWineCellarDataModule.ConnectionBeforeConnect(Sender: TObject);
begin
// if you are using firebird 2.5, uses the file WINES_FB25.FDB
if not IsLibrary then
begin
// Is compiled as EXE
Connection.Params.Values['Database'] := ExtractFilePath(ParamStr(0)) + '..\..\WINES_FB30.FDB';
end
else
begin
// Is compiled as Apache Module
Connection.Params.Values['Database'] := ExtractFilePath(ParamStr(0)) + '..\..\..\winecellarserver\WINES_FB30.FDB';
end;
end;
function TWineCellarDataModule.FindWines(Search: string): TDataSet;
begin
if Search.IsEmpty then
qryWines.Open('SELECT * FROM wine')
else
qryWines.Open('SELECT * FROM wine where NAME CONTAINING ?', [Search]);
Result := qryWines;
end;
function TWineCellarDataModule.GetAllWines: TDataSet;
begin
Result := FindWines('');
end;
function TWineCellarDataModule.GetWineById(id: Integer): TDataSet;
begin
qryWines.Open('SELECT * FROM wine where id = ?', [id]);
Result := qryWines;
end;
procedure TWineCellarDataModule.UpdateWine(AWine: TWine);
begin
TFireDACUtils.ObjectToParameters(updWines.Commands[arUpdate].Params, AWine, 'NEW_');
updWines.Commands[arUpdate].Params.ParamByName('OLD_ID').AsInteger := AWine.id;
updWines.Commands[arUpdate].Execute;
end;
end.