Re: Adding new model. ContentType error field "name". Bug?

Please take a look at this thread and see if it helps: https://groups.google.com/d/topic/django-users/DlRQOdsJL6o/discussion

On Monday, June 29, 2015 at 5:02:52 AM UTC-4, ClosiusBeg wrote:

Hi All!

I caught a error when I move from Dajngo 1.7 to 1.8.

I wanted to add new model, for example:

class Test(models.Model):
    class Meta():
        db_table = 'test'
    userID = models.ForeignKey(User)
    minAge = models.PositiveSmallIntegerField(default=0)
    maxAge = models.PositiveSmallIntegerField(default=150)
    allowedGender = models.PositiveSmallIntegerField(default=0)

I created migration, it is normal. Then I tried to apply it by manage.py migrate but I caught an error "RuntimeError: Error creating new content types. Please make sure contenttypes is migrated before trying to migrate apps individually.".

Or if rise clear exception it will be "null value in column "name" violates not-null constraint"

This error is rised from django/contryb/contenttypes/models.py  in get_for_model.

Then I observed that Django tried to get a field "name" in DB teble django_content_types. This field really exists there. 

But then I saw the migration 0002_remove_content_type_name.py there https://github.com/django/django/tree/master/django/contrib/contenttypes/migrations

Thus, Django tried to get content type before it was creted.

I'd like to ask "Why???".  Is it a bug?

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