#34135: Add async interface to ManyRelatedManager & RelatedManager
-------------------------------------+-------------------------------------
               Reporter:  Jon        |          Owner:  nobody
  Janzen                             |
                   Type:             |         Status:  new
  Uncategorized                      |
              Component:  Database   |        Version:  dev
  layer (models, ORM)                |
               Severity:  Normal     |       Keywords:  async
           Triage Stage:             |      Has patch:  0
  Unreviewed                         |
    Needs documentation:  0          |    Needs tests:  0
Patch needs improvement:  0          |  Easy pickings:  0
                  UI/UX:  0          |
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 With #34112 and #33646 combined, there is now an async interface for
 reading/writing Models in a lot of cases. One of the obvious places where
 that isn't true is in `RelatedManager` instances. `RelatedManager`
 instances are missing async versions of:

 * `add`
 * `remove`
 * `clear`
 * `set`

 And this might be a separate ticket but the docs [1] are missing a
 reference to `acreate` which according to `dir()` exists on
 `ManyRelatedManager` (I assume as a consequence of inheriting from some
 superclass `Manager` type) but I didn't actually try and see if it works.
 I'm suspicious that it might not be fully correct as
 `related_descriptors.py` includes a possibly custom version of the
 synchronous `create` function (see [2] & [3]).

 [1]
 
https://docs.djangoproject.com/en/dev/ref/models/relations/#django.db.models.fields.related.RelatedManager
 [2]
 
https://github.com/django/django/blob/main/django/db/models/fields/related_descriptors.py#L788-L792
 [3]
 
https://github.com/django/django/blob/main/django/db/models/fields/related_descriptors.py#L1186-L1190

-- 
Ticket URL: <https://code.djangoproject.com/ticket/34135>
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