Hi there,
Does anybody know of a way to trick Django 1.7 (or the proper way, if
any) to modify the property of an inherited field so that it has unique
property on the children only.
Consider this abstract model :
class UniqueObjectModel(models.Model):
uuid = models.CharField(max_length=36, default=uuid4)
pool = models.ForeignKey('Pool', related_name='+', to_field='uuid')
...
class Meta:
abstract = True
unique_together = (('uuid', 'pool'),)
I would like the Pool model to inherit from UniqueObjectModel *but* have
its uuid field unique.
class Pool(UniqueObjectModel):
def __init__(self, *args, **kwargs):
super(Pool, self).__init__(*args, **kwargs)
self._meta.get_field('pool').to = 'self'
self._meta.get_field('uuid')._unique = True
However, Django still complains about Pool.uuid field not being unique.
$ python manage.py makemigrations myapp
CommandError: System check identified some issues:
ERRORS:
myapp.Controller.pool: (fields.E311) 'Pool.uuid' must set unique=True
because it is referenced by a foreign key.
Any ideas?
Thanks!
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