unit uRptFichasEmpleado_Server;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, frxClass, frxDBSet, uDAScriptingProvider,
  uDADataTable, uDACDSDataTable, DB, uDAClasses, frxChart, frxGradient,
  frxChBox, frxCross, frxOLE, frxBarcode, frxRich, uDABINAdapter, uROTypes,
  uDAInterfaces, uDADataStreamer, uDABin2DataStreamer, uDAMemDataTable,
  FactuGES_Intf;

type
  TRptFichasEmpleado = class(TDataModule)
    DADataCabecera: TDADataSource;
    tbl_FichaEmpleado: TDAMemDataTable;
    frxRichObject1: TfrxRichObject;
    frxBarCodeObject1: TfrxBarCodeObject;
    frxOLEObject1: TfrxOLEObject;
    frxCrossObject1: TfrxCrossObject;
    frxCheckBoxObject1: TfrxCheckBoxObject;
    frxGradientObject1: TfrxGradientObject;
    frxChartObject1: TfrxChartObject;
    frxDBCabecera: TfrxDBDataset;
    schReport: TDASchema;
    DataDictionary: TDADataDictionary;
    frxReport: TfrxReport;
    Bin2DataStreamer: TDABin2DataStreamer;
    procedure DataModuleCreate(Sender: TObject);
  private
    FConnection: IDAConnection;
    //Genera cada uno de los albaranes a imprimir
    procedure _GenerarFicha(const ID: Integer);
  public
    function GenerarFicha(const ListaID: TIntegerArray): Binary;
  end;

implementation

{$R *.dfm}

uses
  uDataModuleServer, schContactosClient_Intf;

const
  rptFichaEmpleado = 'InfFichaEmpleado.fr3';

  { Dataset names for schReport }
  ds_InformeFichaEmpleado = 'InformeFichasEmpleado';


{ TRptFichaEmpleado }


procedure TRptFichasEmpleado.DataModuleCreate(Sender: TObject);
begin
  schReport.ConnectionManager := dmServer.ConnectionManager;
  FConnection := dmServer.DarNuevaConexion;
  frxReport.EngineOptions.NewSilentMode := simReThrow;
end;

function TRptFichasEmpleado.GenerarFicha(const ListaID: TIntegerArray): Binary;
var
  i: Integer;
begin
  Result := Binary.Create;

  //FConnection.BeginTransaction; <--- Creo que no va a hacer falta.
  try
    //Vamos generando todos y cada uno de las fichas de empleado
    for i := 0 to ListaID.Count - 1 do
      _GenerarFicha(ListaID.Items[i]);

    frxReport.PreviewPages.SaveToStream(Result);
  finally
    //FConnection.RollbackTransaction; <--- Creo que no va a hacer falta.
  end;
end;

procedure TRptFichasEmpleado._GenerarFicha(const ID: Integer);
var
  AStream: TMemoryStream;
  dsMaster: IDADataset;
begin
  AStream := TMemoryStream.Create;

  try
    dsMaster := schReport.NewDataset(FConnection, ds_InformeFichaEmpleado, ['ID'], [ID]);

    AStream.Clear;
    Bin2DataStreamer.WriteDataset(AStream, dsMaster, [woRows, woSchema], -1);
    Bin2DataStreamer.ReadDataset(AStream, tbl_FichaEmpleado, TRUE, '', TRUE, TRUE);

    frxReport.LoadFromFile(DarRutaInformes + rptFichaEmpleado, True);
    frxReport.PrepareReport(False);

  finally
    AStream.Free;
    dsMaster := Nil;
  end;
end;

end.