Django Filter by Foreign Key

Question

class UserTomonotomo(models.Model):

    userid= models.BigIntegerField(null=False, unique=True, db_index=True)
    email= models.CharField(max_length=100L, null=True)
    ######################
    ########

class UserFriends(models.Model):
    userid= models.ForeignKey('UserTomonotomo', to_field='userid', null=False)
    friendid = models.BigIntegerField(null=False)

I need to search for UserFriends whose userid > 0,

 UserFriends.objects.filter( userid__userid > 0 )

does not work as posted in Django - filtering on foreign key properties !! What's the fix. I am using django version 1.5.2

Thanks

Answer 1

use __gt :

UserFriends.objects.filter(userid__userid__gt=0)

See QuerySet API Referenece - Field lookup for other operators.