CODEWITHSUNDEEP
djangodjango-modelsmany-to-manydjango-queryset
Delos Chang
Delos Chang

Reputation: 1853

Joint query many to many relationship in Django

I have the following class in my models.py

class Story(models.Model):
    title = models.CharField(max_length=60)
    creator = models.ManyToManyField(User, blank=True)

I am trying to return a QuerySet using 2 creator names.

For example, how would I filter for stories that have creators: User 1 obj and User 2 obj?

I have read the Many-to-Many relationships docs and could not find anything. The closest solution I have reached was...

Story.objects.filter(creator__in=[1,2]).distinct()

but it doesn't do a joint query for both 1 AND 2, just 1 OR 2.

Any help would be greatly appreciated!

Upvotes: 0

Views: 503

Answers (2)

drewman
drewman

Reputation: 1595

You're going to need to us a Q object. I'd try something like this:

from django.db.models import Q

Story.objects.filter(Q(creator=1) | Q(creator=2))

Upvotes: 1

Jordan Hagan
Jordan Hagan

Reputation: 161

You can use Q objects for this:

https://docs.djangoproject.com/en/1.4/topics/db/queries/#complex-lookups-with-q-objects

Something like the following should do what you want:

Story.objects.filter(Q(creator=1), Q(creator=2))

Upvotes: 0

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