Django builtin signals

django built-in signals 

Django's built-in Signals:
Django provides a set of built-in signals that let user code get notified by Django itself of certain actions. These include some useful notifications:

django.db.models.signals.pre_save & django.db.models.signals.post_save : Sent before or after a model's save() method is called
django.db.models.signals.pre_delete & django.db.models.signals.post_delete : Sent before or after a model's delete() method or queryset's delete() method is called
django.db.models.signals.m2m_changed : Sent when a ManyToManyField on a model is changed
django.core.signals.request_started & django.core.signals.request_finished : Sent when Django starts or finishes an HTTP request

Similar codes

-1 vote338 views2 answers
Django cleanup
Python Django
4 votes267 views1 answer
Django listview
Python Django
2 votes375 views1 answer
Urlpatterns += static(r'^static/(?P<path>.*)$', 'django.views.static.serve', {'document_root': settings.STATIC_ROOT})
Python Django
1 vote348 views1 answer
Django foreign key field on delete do nothing
Python Django
19 votes377 views6 answers
Install Django in Windows
Python Django
0 vote331 views1 answer
Django update request.post
Python Django
0 vote342 views1 answer
Django model custom field
Python Django
-1 vote320 views2 answers
Django view
Python Django
0 vote371 views1 answer
Django not migrating
Python Django
1 vote318 views3 answers
Management commands django
Python Django