#22413: Allow model instance attributes in ModelAdmin.fields
-------------------------+-------------------------------------------------
Reporter: moritzs | Owner: nobody
Type: New | Status: new
feature | Version: master
Component: | Keywords: ModelAdmin instance attribute field
contrib.admin | Has patch: 0
Severity: Normal | UI/UX: 0
Triage Stage: |
Unreviewed |
Easy pickings: 0 |
-------------------------+-------------------------------------------------
Say your model uses `__getattr__` like that:
{{{
class MyModel(models.Model):
value = models.CharField(max_length=20)
def __getattr__(self, name):
if name == 'reversed_value':
return self.value[::-1]
else:
raise AttributeError()
}}}
Then you can't use the attribute `reversed_value` in `ModelAdmin.fields`
because the attribute is only defined in a model '''instance''' but not in
the class itself.
I suggest adding a field `model_instance_fields` in `ModelAdmin` that
contains the names of all fields that will be only defined in model
instances.
--
Ticket URL: <https://code.djangoproject.com/ticket/22413>
Django <https://code.djangoproject.com/>
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