I'm writing a mixin which will allow my Models to be easily translated into a deep dict of values (kind of like .values(), but traversing relationships). The cleanest place to do the definitions of these seems to be in the models themselves, a la:
class Person(models.Model, DeepValues):
name = models.CharField(blank=True, max_length=100)
tribe = models.ForeignKey('Tribes')
class Meta:
schema = {
'name' : str,
'tribe' : {
'name' : str
}
}
Person.objects.all().deep_values() => {
'name' : 'Andrey Fedorov',
'tribe' : {
'name' : 'Mohicans'
}
}
However, Django complains about my including this in class Meta
with:
TypeError: 'class Meta' got invalid attribute(s): schema
(entire stack trace here)
Now, I suppose I could elaborately override this in my mixin, but is there a more elegant way of storing this information?
I don't know about elegant, but one pragmatic way is:
import django.db.models.options as options
options.DEFAULT_NAMES = options.DEFAULT_NAMES + ('schema',)
Obviously, this would break if Django ever added a 'schema' attribute of its own. But hey, it's a thought...you could always pick an attribute name which is less likely to clash.