summaryrefslogtreecommitdiff
path: root/django/contrib/admin/options.py
diff options
context:
space:
mode:
Diffstat (limited to 'django/contrib/admin/options.py')
-rw-r--r--django/contrib/admin/options.py18
1 files changed, 18 insertions, 0 deletions
diff --git a/django/contrib/admin/options.py b/django/contrib/admin/options.py
index 78a08cd120..cf3497b93c 100644
--- a/django/contrib/admin/options.py
+++ b/django/contrib/admin/options.py
@@ -269,6 +269,24 @@ class BaseModelAdmin(object):
clean_lookup = LOOKUP_SEP.join(parts)
return clean_lookup in self.list_filter or clean_lookup == self.date_hierarchy
+ def to_field_allowed(self, request, to_field):
+ opts = self.model._meta
+
+ try:
+ field = opts.get_field(to_field)
+ except FieldDoesNotExist:
+ return False
+
+ # Make sure at least one of the models registered for this site
+ # references this field.
+ registered_models = self.admin_site._registry
+ for related_object in opts.get_all_related_objects():
+ if (related_object.model in registered_models and
+ field == related_object.field.rel.get_related_field()):
+ return True
+
+ return False
+
def has_add_permission(self, request):
"""
Returns True if the given request has permission to add an object.