unit srvPedidosProveedor_Impl;

{----------------------------------------------------------------------------}
{ This unit was automatically generated by the RemObjects SDK after reading  }
{ the RODL file associated with this project .                               }
{                                                                            }
{ This is where you are supposed to code the implementation of your objects. }
{----------------------------------------------------------------------------}

interface

uses
  {vcl:} Classes, SysUtils, 
  {RemObjects:} uROClientIntf, uROTypes, uROServer, uROServerIntf, uROSessions,
  {Ancestor Implementation:} DARemoteService_Impl,
  {Used RODLs:} DataAbstract_Intf,
  {Generated:} FactuGES_Intf, uDAClasses, uDAScriptingProvider,
  uDABusinessProcessor, uDAInterfaces, uDADataTable, uDACDSDataTable,
  frxClass, frxDBSet, DB, IBDatabase, IBCustomDataSet, uDABINAdapter;

type
  { TsrvPedidosProveedor }
  TsrvPedidosProveedor = class(TDARemoteService, IsrvPedidosProveedor)
    bpPedidosProveedor: TDABusinessProcessor;
    DADataCabecera: TDADataSource;
    DADataDetalles: TDADataSource;
    frxDBCabecera: TfrxDBDataset;
    frxDBDetalles: TfrxDBDataset;
    tbl_Pedido: TDACDSDataTable;
    tbl_DetallesPedido: TDACDSDataTable;
    IBDatabase1: TIBDatabase;
    IBTransaction1: TIBTransaction;
    IBDataSet1: TIBDataSet;
    IBDataSet2: TIBDataSet;
    DataSource1: TDataSource;
    DataSource2: TDataSource;
    DABINAdapter: TDABINAdapter;
    frxReport1: TfrxReport;
    schPedidosProveedor: TDASchema;
  private
  protected
    function GetNextAutoinc: Integer;
    function DarNuevaReferencia: String;
    function GenerateReport(const Codigo: Integer): Binary;
    function PuedoEliminarPedido(const Codigo: Integer): Boolean;
  end;

implementation

{$R *.dfm}
uses
  {Generated:} FactuGES_Invk, uDataModuleServer, dialogs;

procedure Create_srvPedidosProveedor(out anInstance : IUnknown);
begin
  anInstance := TsrvPedidosProveedor.Create(NIL);
end;

{ srvPedidosProveedor }
{ TsrvPedidosProveedor }

function TsrvPedidosProveedor.DarNuevaReferencia: String;
var
  dsReferencia: IDADataset;
begin
  dsReferencia := schPedidosProveedor.NewDataset(Connection, 'DarReferenciaPedido');
  dsReferencia.Active := True;
  Result := dsReferencia.FieldByName('REFERENCIA').AsString;
end;

function TsrvPedidosProveedor.GenerateReport(
  const Codigo: Integer): Binary;
var
  dsMaster: IDADataset;
  dsDetail: IDADataset;
  AStream: TMemoryStream;
begin
  AStream := TMemoryStream.Create;
  Result := Binary.Create;
  try
    dsMaster := schPedidosProveedor.NewDataset(Connection, 'InformeCabeceraPedido', ['CODIGO'], [Codigo]);
    dsDetail := schPedidosProveedor.NewDataset(Connection, 'InformeDetallesPedido', ['CODIGOPEDIDO'], [Codigo], False);
    dsDetail.Active := True;

    AStream.Clear;
    ServiceAdapter.WriteDataset(AStream, dsMaster, [woRows, woSchema], -1);
    ServiceAdapter.ReadDataset(AStream, tbl_Pedido, TRUE, '', TRUE, TRUE);

    AStream.Clear;
    ServiceAdapter.WriteDataset(AStream, dsDetail, [woRows, woSchema], -1);
    ServiceAdapter.ReadDataset(AStream, tbl_DetallesPedido, TRUE, '', TRUE, TRUE);

    frxReport1.LoadFromFile(DarRutaInformes + 'InfPedido.fr3', True);
    frxReport1.PrepareReport;
    frxReport1.PreviewPages.SaveToStream(Result);
  finally
    AStream.Free;
  end;
end;

function TsrvPedidosProveedor.GetNextAutoinc: Integer;
begin
  Result := uDataModuleServer.GetNextAutoinc(Connection, 'GEN_PEDIDOS');
end;

function TsrvPedidosProveedor.PuedoEliminarPedido(const Codigo: Integer): Boolean;
var
  dsData: IDASQLCommand;
begin
  Result := True;
  Connection.BeginTransaction;
  try
    dsData := schPedidosProveedor.NewCommand(Connection, 'Delete_PedidosProveedor', ['OLD_CODIGO'], [Codigo]);
  except
    on E: Exception do
       Result := False;
  end;
  Connection.RollbackTransaction;
end;

initialization
  TROClassFactory.Create('srvPedidosProveedor', Create_srvPedidosProveedor, TsrvPedidosProveedor_Invoker);

finalization

end.