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Fixed #22028 -- Documented that database signals aren't emitted for a…

…pps that laack a models module.

Thanks un33k for the suggestion and donjpacheco for the draft patch.
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commit 55fb16258888443bc70398248b6e681f3bc032c8 1 parent 2f25cdc
@timgraham timgraham authored
Showing with 7 additions and 2 deletions.
  1. +4 −0 docs/ref/applications.txt
  2. +3 −2 docs/ref/signals.txt
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4 docs/ref/applications.txt
@@ -194,6 +194,10 @@ Read-only attributes
from 'django/contrib/admin/models.pyc'>``.
It may be ``None`` if the application doesn't contain a ``models`` module.
+ Note that the database related signals such as
+ :data:`~django.db.models.signals.pre_migrate` and
+ :data:`~django.db.models.signals.post_migrate`
+ are only emitted for applications that have a ``models`` module.
Methods
-------
View
5 docs/ref/signals.txt
@@ -377,7 +377,7 @@ pre_migrate
:module:
Sent by the :djadmin:`migrate` command before it starts to install an
-application.
+application. It's not emitted for applications that lack a ``models`` module.
Any handlers that listen to this signal need to be written in a particular
place: a ``management`` module in one of your :setting:`INSTALLED_APPS`. If
@@ -469,7 +469,8 @@ post_migrate
:module:
Sent by the :djadmin:`migrate` command after it installs an application, and the
-:djadmin:`flush` command.
+:djadmin:`flush` command. It's not emitted for applications that lack a
+``models`` module.
Any handlers that listen to this signal need to be written in a particular
place: a ``management`` module in one of your :setting:`INSTALLED_APPS`. If
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