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Fixed #7683: Try not to delete uploaded files before moving them, and don't wig out of someone else does. Patch from screeley and spaetz.


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Fixed #7904: added support for a "use_for_related_fields" property on managers. If True, the manager will be used for related object lookups instead of the "bare" QuerySet introduced bu [8107]. Patch from Justin Bronn.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8212 bcc190cf-cafb-0310-a4f2-bffc1f526a37

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Fixed #7942 -- Added a note to the admin ordering option documentation about the admin only respecting the first element. Thanks mwdiers for the report and MattBowen for the original patch.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@8210 bcc190cf-cafb-0310-a4f2-bffc1f526a37

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Added the missing form option to the ModelAdmin options section. Also added a section for custom validation in the admin.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@8208 bcc190cf-cafb-0310-a4f2-bffc1f526a37

Fixed #8901 -- Corrected typo in docstring. Thanks to Hayley Bonham <djangocode@vortex.cx> for the report.

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Fixed #8092, #3828 -- Removed dictionary access for request objects so that GET and POST data doesn't "overwrite" request attributes when used in templates (since dictionary lookup is performed before attribute lookup).  This is backwards-incompatible if you were using the request object for dictionary access to the combined GET and POST data, but you should use `request.REQUEST` for that instead.


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Added tests for accessing nullable ForeignKey after saving and fetching from the database (refs #8093).


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8198 bcc190cf-cafb-0310-a4f2-bffc1f526a37

git-svn-id: http://code.djangoproject.com/svn/django/trunk@8197 bcc190cf-cafb-0310-a4f2-bffc1f526a37

Used definition lists to be consistent with other docs.  Also used 3rd-level headings instead of bold text.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8196 bcc190cf-cafb-0310-a4f2-bffc1f526a37

Fixed #7781 -- Documented the `per_page` argument/attribute for `Paginator` objects.  Also documented `Paginator`'s other arguments and made use of ReST definition lists.  Thanks to hiukkanen for the 
report.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8195 bcc190cf-cafb-0310-a4f2-bffc1f526a37

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Fixed #7919 -- md5 and sha modules are deprecated since Python 2.5, use hashlib module when available.  Patch from Karen Tracey.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8193 bcc190cf-cafb-0310-a4f2-bffc1f526a37

Fixed #8078 -- Fixed a Python 2.3 incompatibility in `contrib/admin/options.py`, thanks Karen Tracey.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8192 bcc190cf-cafb-0310-a4f2-bffc1f526a37

 * "simple" cache backend
 * `ObjectPaginator`
 * `edit_inline_type` argument for `ForeignKey` fields
 * `QOperator`, `QNot`, `QAnd` and `QOr`
 * `maxlength` argument 


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8191 bcc190cf-cafb-0310-a4f2-bffc1f526a37

Fixed #7920 -- Made tests compatible with Python 2.6's Decimal repr change, patch from Karen Tracey.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8190 bcc190cf-cafb-0310-a4f2-bffc1f526a37

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Fixed #8086 -- Removed 2.5 specific keyword argument to __import__. Thanks CHasenpflug for noticing this.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@8188 bcc190cf-cafb-0310-a4f2-bffc1f526a37

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Pass the correct data as the second parameter to find_module to correct admin.autodiscover(). Fixes #7922. Thanks Alex Gaynor for being smarter than me.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@8186 bcc190cf-cafb-0310-a4f2-bffc1f526a37

 * Model init no longer performs a database query to refetch the related objects it is passed.
 * Model init now caches unsaved related objects correctly, too. (Previously, accessing the field would raise `DoesNotExist` error for `null=False` fields.)
 * Added tests for assigning `None` to `null=True` `ForeignKey` fields (refs #6886).


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Fixed #3912 - Added simple type checking to template.Context.update() to help debugging broken context processors.  Thanks Jeremy Dunck


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