* Removed type coercion. Options created by argparse are already coerced
to the correct type.
* Removed fallback default values. Options created by argparse already
have a default value.
* Used direct indexing. Options created by argparse are always set. This
eliminates the need to use dict.get().
Django's test suite often tries to load fixture files from apps that have
no fixtures at all. This creates a lot of unnecessary disabling and
enabling of constraints which can be expensive on some database.
To speed this up, loaddata now first checks if any fixture file matches.
If no fixture file is matched, then the command exits before disabling
and enabling of constraints is done.
The main benefit of this change is seen on MSSQL, where tests on
Django 1.8 run hours faster.
The new signature enables better support for routing RunPython and
RunSQL operations, especially w.r.t. reusable and third-party apps.
This commit also takes advantage of the deprecation cycle for the old
signature to remove the backward incompatibility introduced in #22583;
RunPython and RunSQL won't call allow_migrate() when when the router
has the old signature.
Thanks Aymeric Augustin and Tim Graham for helping shape up the patch.
Refs 22583.
If settings.FIXTURE_DIRS contains duplicates or a default fixture
directory (app_name/fixtures), ImproperlyConfigured is raised.
Thanks to Berker Peksag and Tim Graham for review.
This commit touchs various parts of the code base and test framework. Any
found usage of opening a cursor for the sake of initializing a connection
has been replaced with 'ensure_connection()'.
Since the original ones in django.db.models.loading were kept only for
backwards compatibility, there's no need to recreate them. However, many
internals of Django still relied on them.
They were also imported in django.db.models. They never appear in the
documentation, except a quick mention of get_models and get_app in the
1.2 release notes to document an edge case in GIS. I don't think that
makes them a public API.
This commit doesn't change the overall amount of global state but
clarifies that it's tied to the app_cache object instead of hiding it
behind half a dozen functions.
Replaced the custom, untested memoize with a similar decorator from Python's
3.2 stdlib. Although some minor performance degradation (see ticket), it is
expected that in the long run lru_cache will outperform memoize once it is
implemented in C.
Thanks to EvilDMP for the report and Baptiste Mispelon for the idea of
replacing memoize with lru_cache.
If the fixture doesn't exist, loaddata will output a warning.
The fixture named "initial_data" is exceptional though; if it
doesn't exist, the warning is not emitted. This allows syncdb and
flush management commands to attempt to load it without causing
spurious warnings.
Thanks to Derega, ptone, dirigeant and d1ffuz0r for contributions
to the ticket.
Jon Dufresne
Claude Paroz
Anton Samarchyan
Tim Graham
Aymeric Augustin
Berker Peksag
Andrew Kuchev
Anssi Kääriäinen
Moritz Sichert
Yitzhak Clark
Loic Bistuer
Konrad Świat
Brandon Taylor
Florian Apolloner
Andrew Godwin
Michael Manfre
Bouke Haarsma
Boryslav Larin
Alasdair Nicol
Alasdair Nicol
Alex Gaynor
Przemek Lewandowski
Senko Rasic