Previous algo only worked if the first item was a part of the loop,
and you would get an infinite loop otherwise (see test).
To fix this, it was much easier to do a pre-pass.
A bonus is that you now get an error message that actually helps you debug
the dependency problem.
Backport of ff3d746e8d from master, with
additional tests from c5def493d0
This change allows dynamically created inlines "Add related" button to work
correcly as long as their associated foreign key is pointing to the primary
key of the related model.
Thanks to amorce for the report, Julien Phalip for the initial patch,
and Collin Anderson for the review.
Backport of f9c4e14aec from master
Added relabeled_clone() method to sql.Query to fix the problem. It
manifested itself in rare cases where at least double nested subquery's
filter condition might target non-existing alias.
Thanks to Trac alias ris for reporting the problem.
Backport of 5c481db295 from master
Custom form fields having a `queryset` attribute but no
`limit_choices_to` could no longer be used in ModelForms.
Refs #2445.
Thanks to artscoop for the report.
Backport of bfb11b9562 from master.
Conflicts:
django/forms/fields.py
Fixed issue with warning message displayed for unbound naive datetime
objects when USE_TZ is True. Adds unit test that demonstrates the issue
(discoverable when using a custom lookup in MySQL).
Backport of ceb1ffcc8d from master.
Conflicts:
tests/custom_lookups/tests.py
Thanks Corey Farwell for the report and Tim Graham for the review.
Thanks also to Inada Naoki for creating and maintaining mysqlclient.
Backport of 7f089ac2e3 from master.
Previously a RuntimeError was raised every time two models clashed
in the app registry. This prevented reloading a module in a REPL;
while it's not recommended to do so, we decided not to forbid this
use-case by turning the error into a warning.
Thanks dfunckt and Sergey Pashinin for the initial patches.
Backport of 8c4ca16c65 and b62f72498a from master
Fixed a regression introduced by 28efafa24c.
Thanks Michal Čihař for the report and initial patch, and
Collin Anderson and Tim Graham for the reviews.
Backport of 8b4cc9df9c from master.
The "check" name is a reserved word used by Django's check framework,
and cannot be redefined as something else other than a method, or the check
framework will raise an error.
This change amends the django.core.checks.model_check.check_all_models()
function, so that it verifies that a model instance's attribute "check"
is actually a method. This new check is assigned the id "models.E020".
Conflicts:
docs/ref/checks.txt
Backport of a5c77417a6 from master
Previous versions of the tests were buggy, as initial_data.json
did exist and the test wasn't failing. It was finally failing on
Python 3.4.2.
Thanks Raphaël Hertzog for the report (and Debian bug #765117
contributors).
Backport of 7a893ee771 from master.
Added update_or_create to RelatedManager, ManyRelatedManager and
GenericRelatedObjectManager.
Added missing get_or_create to GenericRelatedObjectManager.
Conflicts:
tests/generic_relations/tests.py
tests/get_or_create/tests.py
Backport of ed37f7e979 from master