#29631: Feature Request: models.UniqueBooleanField()
-------------------------------------+-------------------------------------
     Reporter:  Michael              |                    Owner:  nobody
         Type:  New feature          |                   Status:  closed
    Component:  Database layer       |                  Version:  2.1
  (models, ORM)                      |
     Severity:  Normal               |               Resolution:  wontfix
     Keywords:                       |             Triage Stage:
                                     |  Unreviewed
    Has patch:  0                    |      Needs documentation:  0
  Needs tests:  0                    |  Patch needs improvement:  0
Easy pickings:  0                    |                    UI/UX:  0
-------------------------------------+-------------------------------------
Changes (by Carlton Gibson):

 * status:  new => closed
 * resolution:   => wontfix


Comment:

 Hi iMerica,

 Thanks for the input. Here are my thoughts:

 1. There's nothing to stop you creating
 [https://docs.djangoproject.com/en/2.0/howto/custom-model-fields/ a custom
 field] for this. I'm not sure it's something we'd add to Django itself —
 It would be a bit too special case — but if you had an implementation, we
 could certainly look.
 2. Assuming I've understood the use-case correctly, you could model this
 with a nullable `OneToOneField`. (Each user can pin at most one of their
 own tweets.) When pinning you'd just need to clear any existing pin before
 saving. Then you'd just access via something like `user.pinned_tweet`.
 3. I'd probably be inclined to store the `pinned_tweet` for each user in a
 third table. (Do you have a profile model or such — maybe there — or just
 a two-field lookup model if not.) Again here the foreign key to `User`
 would be `unique` (or, the same thing, one-to-one).

 Hopefully that gives you options. If you need further help please post to
 [https://groups.google.com/d/forum/django-users the Django Users mailing
 list].

 If you come up with an implementation for your field that you think might
 be good for inclusion, create a Pull Request on GitHub and re-open this
 issue or post to [django-developers mailing archive the Django Developers
 mailing list] to get feedback.

 Thanks again.

-- 
Ticket URL: <https://code.djangoproject.com/ticket/29631#comment:1>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.

-- 
You received this message because you are subscribed to the Google Groups 
"Django updates" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
To post to this group, send email to [email protected].
To view this discussion on the web visit 
https://groups.google.com/d/msgid/django-updates/065.4d436219c2f0f505efdfdfe0b92221e6%40djangoproject.com.
For more options, visit https://groups.google.com/d/optout.

Reply via email to