#27315: IntegrityError: insert or update on table violates foreign key
constraint
on Django 1.10
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Reporter: Alex Rothberg | Owner: nobody
Type: Uncategorized | Status: new
Component: Uncategorized | Version: 1.10
Severity: Normal | Resolution:
Keywords: | Triage Stage: Unreviewed
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 Alex Rothberg):
I think the issue has something to do with the migration engine. I have
one migration now with a series of operations. One of the earlier
operations `CreateModel` (with the field set to `db_constraint=True`); a
later operation (in the same migration) then sets `db_constraint=False`.
This all works in Django 1.9 but not 1.10.
If I modify the earlier `CreateModel` operation to set the field initially
to `db_constraint=False`, then my tests all pass.
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Ticket URL: <https://code.djangoproject.com/ticket/27315#comment:2>
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