型号
class Beer(models.Model):
pass
class Salas(models.Model):
name = models.CharField(max_length=20)
beers = models.ManyToManyField('Beer', blank=True)
视图
beer = Beer.objects.get(user=user)
id_sala = request.GET['id_sala']
sala = get_object_or_404(Salas, id=id_sala)
if beer.salas_set.filter(nombre=sala):
# if beer.objects.filter(sitios__id=beer).exists():
sala.beers.remove(beer)
else:
sala.beers.add(beer)
我想看看啤wine 和沙拉有没有关系,这个怎么做??