views.py 文件源码

def get(self, request, *args, **kwargs): 
        response = HttpResponse(content_type='application/pdf')
        pdf_name = "clientes.pdf"  # llamado clientes
        # la linea 26 es por si deseas descargar el pdf a tu computadora
        # response['Content-Disposition'] = 'attachment; filename=%s' % pdf_name
        buff = BytesIO()
        doc = SimpleDocTemplate(buff,
                                pagesize=letter,
                                rightMargin=40,
                                leftMargin=40,
                                topMargin=60,
                                bottomMargin=18,
                                )
        clientes = []
        styles = getSampleStyleSheet()
        header = Paragraph("Listado de Clientes", styles['Heading1'])
        clientes.append(header)
        headings = ('Nombre', 'Email', 'Edad', 'Direccion')
        allclientes = [(p.codigo, p.descripcion, p.precio_mercado, p.grupo_suministros) for p in Producto.objects.all()]

        t = Table([headings] + allclientes)
        t.setStyle(TableStyle(
            [
                ('GRID', (0, 0), (3, -1), 1, colors.dodgerblue),
                ('LINEBELOW', (0, 0), (-1, 0), 2, colors.darkblue),
                ('BACKGROUND', (0, 0), (-1, 0), colors.dodgerblue)
            ]
        ))
        clientes.append(t)
        doc.build(clientes)
        response.write(buff.getvalue())
        buff.close()
        return response