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mirror of https://github.com/django/django.git synced 2025-03-06 07:22:32 +00:00
Simon Charette 923c5daa10 [5.2.x] Fixed #35967 -- Deferred test suite fixtures serialization after all dbs setup.
While the top-level objects fed to serialization are bound to the test
database being created nothing prevents code invoked during
serialization from performing queries against other connections entries
that haven't been swapped yet.

The reported example of that is a database router directing all reads to
a test mirror for a set of models involving auto-created many-to-many
fields. It might be tempting to address the many-to-many field case but
this a symptom of a larger problem where the test framework yields the
flow execution to user code that could interact with non-test databases
in unexpected ways.

Deferring test database fixture serialization until the point where all
connections entries have been swapped for their test equivalent ensures
that no code triggered during serialization can interact with non-test
databases.

Thanks Jake Howard for the report and Jacob Walls for the initial
investigation.

Backport of dc69a63f844b2ef3bc3371edde91644cf0bef0ee from main
2025-02-16 13:43:38 +01:00
2024-05-06 11:42:37 +02:00
2013-10-10 16:49:20 -04:00

======
Django
======

Django is a high-level Python web framework that encourages rapid development
and clean, pragmatic design. Thanks for checking it out.

All documentation is in the "``docs``" directory and online at
https://docs.djangoproject.com/en/stable/. If you're just getting started,
here's how we recommend you read the docs:

* First, read ``docs/intro/install.txt`` for instructions on installing Django.

* Next, work through the tutorials in order (``docs/intro/tutorial01.txt``,
  ``docs/intro/tutorial02.txt``, etc.).

* If you want to set up an actual deployment server, read
  ``docs/howto/deployment/index.txt`` for instructions.

* You'll probably want to read through the topical guides (in ``docs/topics``)
  next; from there you can jump to the HOWTOs (in ``docs/howto``) for specific
  problems, and check out the reference (``docs/ref``) for gory details.

* See ``docs/README`` for instructions on building an HTML version of the docs.

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To contribute to Django:

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To run Django's test suite:

* Follow the instructions in the "Unit tests" section of
  ``docs/internals/contributing/writing-code/unit-tests.txt``, published online at
  https://docs.djangoproject.com/en/dev/internals/contributing/writing-code/unit-tests/#running-the-unit-tests

Supporting the Development of Django
====================================

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