如何将两个不同模型的uuid和id放在同一个网址中？

Question

I have two different model linked by a ForeignKey one contains a certain uuid and the other has a certain id . I'd like to be able to put these in the same URL.

Here's the models.py :

class Creation(models.Model):
    ...
    uuid = models.UUIDField(default=uuid.uuid4, unique=True)

class User(models.Model):
    ...
    creation = models.ForeignKey(Creation, null=True)

Here's what the URL pattern should look like :

url(r'^edit/(?P<id>\d+)/(?P<uuid>[^/]+)/$', views.edit, name='edit'),

Views.py

def edit(request, id, uuid):
    user_uuid = User.objects.filter(id=id)
    user = get_object_or_404(User, id=id, uuid=user_uuid.creation.uuid)

As you can see the view function doesn't make any sense since I don't see how what I'm trying to do should work but the User should be the id in the URL and the Creation should be the uuid since each user can have many Creation s.

How can I achieve this?

Answer 1

Your question is quite hard to understand, but I think what you want is:

user = User.objects.get(id=id)
creation = user.creation_set.filter(uuid=uuid)

Note of course though that since uuid is unique, there's no need to use the User ID in the query at all; you could drop it from the URL altogether, use just the uuid to get the Creation, then get the user via creation.user .