#14891: use_for_related_fields=False is not honored by reverse FK or M2M related
managers
-------------------------------------+-------------------------------------
Reporter: sdksho@… | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: 1.2
(models, ORM) |
Severity: Normal | Resolution:
Keywords: Manager | Triage Stage: Accepted
ManyToManyField |
use_for_related_fields |
Has patch: 1 | Needs documentation: 1
Needs tests: 0 | Patch needs improvement: 1
Easy pickings: 0 | UI/UX: 0
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Comment (by loic):
I like the `(manager='objects', related_manager='related')` API since it
allows fine grained control over the relation manager as expected by the
relational field. It's in the same spirit as
https://docs.djangoproject.com/en/1.9/topics/db/queries/#using-a-custom-
reverse-manager which allows controlling the reverse manager per query per
relational field.
But I also see merit in allowing the model to say which manager should be
used by default by relations. My work on #20932 can easily be extended to
support a `related_manager_name` meta.
It would work as follows:
{{{
class Model(models.Model):
objects = models.Manager()
custom_manager = CustomManager()
class Meta:
related_manager_name = 'custom_manager'
}}}
PR https://github.com/django/django/pull/6175 shows a working
implementation + deprecation.
--
Ticket URL: <https://code.djangoproject.com/ticket/14891#comment:28>
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