Django-cmsでdbの内容をすべて破棄

 Django-cmsでdbの内容をすべて破棄するには

#cms_page
objects = Page.objects.all()
objects.delete()
#cms_placeholder
objects = Placeholder.objects.all()
objects.delete()
#django_sessions
objects = Session.objects.all()
objects.delete()
#django_admin_log
objects = LogEntry.objects.all()
objects.delete()

でいける。たぶん…