[Django] #25749: Cannot use foreign keys between tables of the same non-default db
Django
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Reporter: muraveill | Owner: nobody
Type: Uncategorized | Status: new
Component: Uncategorized | Version: 1.8
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Easy pickings: 0 | UI/UX: 0
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When one has multiple databases, one can use the `using` keyword (or a
router class) to query or save entries to a specific db.
Cross-database references (foreign keys) are not supported, but nothing
should prevent one from using references between tables of the _same_ db.
But it does not work:
person = People(firstname=firstname, lastname=lastname)
person.save(using=MY_DB)
newuser = User(username=username, person=person)
newuser.save(using=MY_DB) # to illustrate, but it fails at the
previous line
returns
Cannot assign "<People: People object>": "People" instance isn't saved
in the database.
Using a router class telling models User and People to always use MY_DB,
instead of the 'using' keyword, does not help.
At least there is a point missing in the documentation.
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Ticket URL: <https://code.djangoproject.com/ticket/25749>
Django <https://code.djangoproject.com/>
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Django
Reporter: muraveill | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: 1.8
(models, ORM) |
Severity: Normal | Resolution:
Keywords: foreign key | Triage Stage:
| Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
Changes (by muraveill):
* needs_better_patch: => 0
* component: Uncategorized => Database layer (models, ORM)
* needs_tests: => 0
* keywords: => foreign key
* needs_docs: => 0
* type: Uncategorized => Bug
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Ticket URL: <https://code.djangoproject.com/ticket/25749#comment:1>
Django
Reporter: muraveill | Owner: nobody
Type: Bug | Status: new
Component: Database layer | Version: 1.8
(models, ORM) |
Severity: Normal | Resolution:
| Unreviewed
Has patch: 0 | Needs documentation: 1
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
Changes (by muraveill):
* needs_docs: 0 => 1
--
Ticket URL: <https://code.djangoproject.com/ticket/25749#comment:2>
Django
Reporter: muraveill | Owner: nobody
Type: Bug | Status: closed
Component: Database layer | Version: 1.8
(models, ORM) |
Keywords: foreign key | Triage Stage:
| Unreviewed
Has patch: 0 | Needs documentation: 1
Easy pickings: 0 | UI/UX: 0
Changes (by muraveill):
* status: new => closed
* resolution: => wontfix
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Ticket URL: <https://code.djangoproject.com/ticket/25749#comment:3>