On 1 juil, 14:44, coan <a.ne...@gmail.com> wrote:
> I have a friendship model for users and want to retrieve all the posts
> my friends made.
>
> class Friendship(models.Model):
> from_friend = models.ForeignKey( User, related_name='friend_set' )
> to_friend = models.ForeignKey( User, related_name='to_friend_set' )
>
> class Post(models.Model):
> text = models.TextField()
> user = models.ForeignKey(User)
>
> I retrieve my friends posts with this:
>
> my_friendships = Friendship.objects.filter(from_friend=request.user)
> list_of_my_friends_ids = []
>
> for friendship in my_friendships:
> list_of_my_friends_ids.append(friendship.to_friend.id)
>
> posts_my_friends_made = Post.objects.filter( user__in =
> list_of_my_friends_ids )
>
> Is there a better, less ugly way to filter the posts?
I don't know what Django can do here, but with Python you can do :
friends_ids = [ f.to_friend.id for f in Friendship.objects.filter
(from_friend=request.user) ]
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