def do_action(self, queryset):
# Check that the user has delete permission for the actual model
if not self.has_delete_permission():
raise PermissionDenied
using = router.db_for_write(self.model)
queryset = filter_by_permission(self.user, queryset, 'delete')
if not queryset:
raise PermissionDenied
# Populate deletable_objects, a data structure of all related objects that
# will also be deleted.
deletable_objects, perms_needed, protected = get_deleted_objects(
queryset, self.opts, self.user, self.admin_site, using)
# The user has already confirmed the deletion.
# Do the deletion and return a None to display the change list view again.
if self.request.POST.get('post'):
if perms_needed:
raise PermissionDenied
self.delete_models(queryset)
# Return None to display the change list page again.
return None
if len(queryset) == 1:
objects_name = force_unicode(self.opts.verbose_name)
else:
objects_name = force_unicode(self.opts.verbose_name_plural)
if perms_needed or protected:
title = _("Cannot delete %(name)s") % {"name": objects_name}
else:
title = _("Are you sure?")
context = self.get_context()
context.update({
"title": title,
"objects_name": objects_name,
"deletable_objects": [deletable_objects],
'queryset': queryset,
"perms_lacking": perms_needed,
"protected": protected,
"opts": self.opts,
"app_label": self.app_label,
'action_checkbox_name': ACTION_CHECKBOX_NAME,
})
# Display the confirmation page
return TemplateResponse(self.request, self.delete_selected_confirmation_template or
self.get_template_list('views/model_delete_selected_confirm.html'), context, current_app=self.admin_site.name)
def queryset(self):
"""
Returns a QuerySet of all model instances that can be edited by the
admin site. This is used by changelist_view.
"""
return filter_by_permission(self.user, self.model._default_manager.get_query_set(), 'view')
