Question

我想将单个squawks插入Room对象，以便我可以插入到数据库中。我该怎么做？

我试过，Room（squawk = squawk object），但这似乎不起作用。

class Squawk(models.Model):
    username = models.ForeignKey(User)
    message = models.CharField(max_length=160)
    time = models.DateTimeField(auto_now_add=True)

    def __unicode__(self):
        return str(self.username) + ' - ' + self.message


class Room(models.Model):
    title = models.CharField(max_length=160)
    created = models.DateTimeField(auto_now_add=True)
    users = models.ManyToManyField(User)
    squawks = models.ManyToManyField(Squawk)

    def __unicode__(self):
        return self.title

Answer 1

from django.shortcuts import get_object_or_404

# get Room instance by id or raise 404 page if not found
room = get_object_or_404(Room,pk = id)
# add squawk to many-to-many relation
room.squawks.add(squawk_object)

https://docs.djangoproject.com/en/dev/ref/models/relations/

将manytomany字段插入db

1 个答案: