#23816: Ability to defer model field by default
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Reporter: rcoup | Owner: nobody
Type: New feature | Status: new
Component: Database layer (models, ORM) | Version: master
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Easy pickings: 0 | UI/UX: 0
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Today's small #IWantAPony is to be able to mark model fields as deferred
by default. No need to chase down every queryset and add `.defer()`, or
use a custom manager setup & remember to set `use_for_related_fields`.
{{{
class MyModel(models.Model):
enormous_field = models.TextField(defer=True)
other_field = models.IntegerField()
}}}
Which is (simplistically) equivalent to the following:
{{{
class MyManager(models.Manager):
use_for_related_fields = True
def get_queryset(self, *args, **kwargs):
return super(MyManager, self).get_queryset(*args,
**kwargs).defer("enormous_field")
class MyModel(models.Model):
enormous_field = models.TextField()
other_field = models.IntegerField()
objects = MyManager()
}}}
Obviously, you can still do `MyModel.objects.defer(None)` to do the full
query.
--
Ticket URL: <https://code.djangoproject.com/ticket/23816>
Django <https://code.djangoproject.com/>
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