#26163: Wrong related fields in ._meta.get_fields with multiple database on
foreignkey
-------------------------------------+-------------------------------------
Reporter: aRkadeFR | Owner: nobody
Type: Bug | Status: closed
Component: Database layer | Version: 1.9
(models, ORM) |
Severity: Normal | Resolution: invalid
Keywords: models, meta, | Triage Stage:
get_fields, fields, router, | Unreviewed
multiple, databases |
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by charettes):
Hi aRkadeFR,
From what I can see `GroupA` deletion triggered cascade deletion attempts
of `ModelB` which is normal because of the FK relationships you defined
(`GroupA` < -- o2o --> `Group` <-- fk -- `ModelB`).
Because of your router definition the `app_modelb` table is not created on
the `default` database and thus defines a cross-database relationship
(even if you `auth_group` table is in both databases) with `GroupA` in the
context of the database used for its writes (`router.db_for_write(GroupA)
is None` -> `default`).
I won't go into more details about you question because this ticket
tracker is not a support channel but an application to track bugs. If you
want to get help to set things up please submit your question to the
mailing list or join the #django IRC channel.
--
Ticket URL: <https://code.djangoproject.com/ticket/26163#comment:4>
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