CODEWITHSUNDEEP
pythondjangodjango-modelsdjango-views
Lars
Lars

Reputation: 1270

Related Field got invalid lookup: user

I am building a BlogApp and I am stuck on an Error.

What i am trying to do :-

I am trying to exclude the users that are my followers from the BlogPost Page.

I am using exclude method to exclude the users.

When i go to the browser then it keep showing :-

Related Field got invalid lookup: user

models.py

 class Post(models.Model):
    post_owner = models.ForeignKey(User,default='',null=True,on_delete = models.CASCADE)
    post_title = models.CharField(max_length=500,default=''  )

views.py

def posts(request,user_id):
    followed_users= request.user.profile.followers.all()

    posts = Post.objects.filter(date_added__lte=now).exclude(post_owner__user=followed_users)

    context = {'posts':posts}
    return render(request, 'blogpost.html', context)

I don't know what i am doing wrong.

Any help would be Appreciated.

Upvotes: 0

Views: 1387

Answers (1)

Charnel
Charnel

Reputation: 4432

No need to use post_owner__user lookup since post_owner is already an aliace to User model. Also you can't filter by equality here becase on the right side of the expression you have not a single instance of User, but a queryset. Try this instead:

followed_users= request.user.profile.followers.all()
followed_users = list(followed_users.values_list('id', flat=True))
posts = Post.objects.filter(date_added__lte=now).exclude(post_owner_id__in=followed_users)

First line will return only User ID field values that you can use in exclude with in expression.

Upvotes: 1

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