def update(request, id_devolucion):
devolucion = Devolucion.objects.get(id = id_devolucion)
# POST
if request.method == 'POST':
form = DevolucionForm(request.POST, instance = devolucion)
if form.is_valid():
form.save()
return HttpResponseRedirect('/devoluciones/')
form = DevolucionForm(instance = devolucion)
return render_to_response('devoluciones/detail2.html',{'form':form})
def create(request, id_venta, id_ventadetail):
#when POST
if request.method == 'POST':
venta = Venta.objects.get(id = id_venta)
ventadetail = VentaDetail.objects.get(id = id_ventadetail)
devolucion = Devolucion(venta = venta, ventadetail = ventadetail)
form = DevolucionForm(request.POST, instance = devolucion)
if form.is_valid():
ventadetail.cantidad -= devolucion.cantidad
ventadetail.save()
form.save()
return HttpResponseRedirect('/devoluciones/')
else:
devolucion = Devolucion.objects.filter(ventadetail__id__exact = id_ventadetail)
if devolucion:
return HttpResponseRedirect('/devoluciones/update/'+str(devolucion[0].id))
else:
form = DevolucionForm()
return render_to_response('devoluciones/detail2.html', {'form':form}, context_instance=RequestContext(request))
