Ticket #5065: post_reset_signal.patch

django/core/management.py

@@ -499 +499 @@
             app=app, created_models=created_models,
             verbosity=verbosity, interactive=interactive)
 
+def _emit_post_reset_signal(app, interactive):
+    from django.db import models
+    from django.dispatch import dispatcher
+    # Emit the post_reset signal for the given application.
+    app_name = app.__name__.split('.')[-2]
+    dispatcher.send(signal=models.signals.post_reset, sender=app,
+        app=app, interactive=interactive)
+
 def syncdb(verbosity=1, interactive=True):
     "Creates the database tables for all apps in INSTALLED_APPS whose tables haven't already been created."
     from django.db import backend, connection, transaction, models
@@ -679 +687 @@
 
     # First, try validating the models.
     _check_for_validation_errors(app)
+
+    # Import the 'management' module within each installed app, to register
+    # dispatcher events.
+    for app_name in settings.INSTALLED_APPS:
+        try:
+            __import__(app_name + '.management', {}, {}, [''])
+        except ImportError:
+            pass
+    
     sql_list = get_sql_reset(app)
 
     if interactive:
@@ -707 +724 @@
             transaction.rollback_unless_managed()
             sys.exit(1)
         transaction.commit_unless_managed()
+
+        _emit_post_reset_signal(app, interactive)
     else:
         print "Reset cancelled."
 reset.help_doc = "Executes ``sqlreset`` for the given app(s) in the current database."

django/db/models/signals.py

@@ -10 +10 @@
 post_delete = object()
 
 post_syncdb = object()
+post_reset = object()