#25749: Cannot use foreign keys between tables of the same non-default db
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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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