Hi, In my models I want to have an optional field to a foreign key. I
tried this:

  field = models.ForeignKey(MyModel, null=True, blank=True,
default=None)

But i am getting this error:

  model.mymodel_id may not be NULL

i am using sqlite edit: if it can help, here is the exception
location:

  /usr/lib/python2.6/site-packages/django/db/backends/sqlite3/base.py
in execute, line 200

so it's sqlite specific problem, i think.

PS: i droped the whole table and synced before getting this error.

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