Flatten a level of sublists before checking for duplicate fields.
When given sublists such as:
```python
class FooAdmin(admin.ModelAdmin):
fields = ('one', ('one', 'two'))
```
The previous code did not correctly detect the duplicated 'one' field.
Thanks to jwa for the report.
ForeignKey or ManyToManyField attribute ``limit_choices_to`` can now
be a callable that returns either a ``Q`` object or a dict.
Thanks michael at actrix.gen.nz for the original suggestion.
This is a backward incompatible change. The admin contrib app has been
refactored. The newforms module has several improvements including FormSets
and Media definitions.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@7967 bcc190cf-cafb-0310-a4f2-bffc1f526a37
See documentation in templates.txt and templates_python.txt for how everything
works.
Backwards incompatible if you're inserting raw HTML output via template variables.
Based on an original design from Simon Willison and with debugging help from Michael Radziej.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@6671 bcc190cf-cafb-0310-a4f2-bffc1f526a37
Aleksander Budzinski
Aaron France
Christopher Adams
Loic Bistuer
Anssi Kääriäinen
Alex Gaynor
coagulant
Tim Graham
Brian Rosner
Malcolm Tredinnick
Jacob Kaplan-Moss
Luke Plant
Adrian Holovaty