The updown object doesn't removed after related object was deleted

[agusmakmun]

hello @dbanck, I have a little problem. Let say, I have a Post model:

@python_2_unicode_compatible
class Post(TimeStampedModel):
    author = models.ForeignKey(User, on_delete=models.CASCADE)
    title = models.CharField(_('Title'), max_length=200)
    ....
    rating = RatingField(can_change_vote=True)

After I deleted the object of post, and I check at updown.models it still exist. But the content_object is blank. Why the Vote object doesn't deleted also?

>>> from updown.models import Vote
>>> 
>>> Vote.objects.filter(content_type__model='post', user__username='yogesh_pagal')
<QuerySet [<Vote: yogesh_pagal voted 1 on None>]>
>>> 
>>> v = Vote.objects.filter(content_type__model='post', user__username='yogesh_pagal').first()
>>> v.content_object
>>> 

If I check at these lines, the content_type field already using on_delete=models.CASCADE.

content_type = models.ForeignKey(ContentType, related_name="updown_votes", 
                                 on_delete=models.CASCADE)

---

or, maybe this case?

content_object = GenericForeignKey()

should change to:

content_object = GenericForeignKey('content_type', 'object_id')

I was tried this method, but still doesn't work properly.

[dbanck]

Hi there again!

Thanks for the PR! But I'm not entire sure if the change fixes your problem. Did you try it and it's working properly?

[agusmakmun]

hello @dbanck, not yet. I am also looking a solution for this issue.