From 9d104a21e20f9c5ec41d19fd919d0e808aa13dba Mon Sep 17 00:00:00 2001 From: Loic Bistuer Date: Fri, 30 Jan 2015 01:17:16 +0700 Subject: [PATCH] Documented that m2m_changed isn't triggered when M2M is displayed as admin inline. Refs #6707. --- docs/ref/contrib/admin/index.txt | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/docs/ref/contrib/admin/index.txt b/docs/ref/contrib/admin/index.txt index c7c2afb0193..ae61c01869e 100644 --- a/docs/ref/contrib/admin/index.txt +++ b/docs/ref/contrib/admin/index.txt @@ -2164,6 +2164,11 @@ model to represent the many-to-many relationship, you must tell Django's admin to *not* display this widget - otherwise you will end up with two widgets on your admin page for managing the relation. +Note that when using this technique the +:data:`~django.db.models.signals.m2m_changed` signals aren't triggered. This +is because as far as the admin is concerned, ``through`` is just a model with +two foreign key fields rather than a many-to-many relation. + In all other respects, the ``InlineModelAdmin`` is exactly the same as any other. You can customize the appearance using any of the normal ``ModelAdmin`` properties.