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Fixed #13087 -- Modified m2m signals to provide greater flexibility over exactly when notifications are delivered.

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This is a BACKWARDS INCOMPATIBLE CHANGE for anyone using the signal names introduced in r12223.

 * If you were listening to "add", you should now listen to "post_add".
 * If you were listening to "remove", you should now listen to "post_remove".
 * If you were listening to "clear", you should now listen to "pre_clear".

You may also want to examine your code to see whether the "pre_add", "pre_remove" or "post_clear" would be better suited to your application.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@12888 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Russell Keith-Magee 2010-03-30 11:54:56 +00:00
parent 539cfe8cb7
commit 273a002544
3 changed files with 170 additions and 27 deletions
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12
docs/ref/signals.txt
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@ -201,12 +201,18 @@ Arguments sent with this signal:
A string indicating the type of update that is done on the relation.
This can be one of the following:
``"add"``
``"pre_add"``
Sent *before* one or more objects are added to the relation
``"post_add"``
Sent *after* one or more objects are added to the relation
``"remove"``
``"pre_remove"``
Sent *after* one or more objects are removed from the relation
``"clear"``
``"post_remove"``
Sent *after* one or more objects are removed from the relation
``"pre_clear"``
Sent *before* the relation is cleared
``"post_clear"``
Sent *after* the relation is cleared
``reverse``
Indicates which side of the relation is updated (i.e., if it is the