id summary reporter owner description type status component version severity resolution keywords cc stage has_patch needs_docs needs_tests needs_better_patch easy ui_ux 2288 Provide an equivalent for 'ON DELETE' and friends James Bennett nobody "A couple threads on django-users have asked about deleting an object while preserving related objects, preferably by setting their foreign key fields to NULL, but AFAIK we don't expose that functionality in any way. So, a proposed enhancement to model definitions. `ForeignKeyField` should take two extra optional arguments: `on_delete` -- value is one of: `cascade`, `restrict`, `set_null`, `set_default`. If it's `set_default`, a default value must be supplied. I'm thinking we can get by with just `restrict` and not also `no_action`, but open to arguments about it. `on_update` -- same as above. These constraints should be output in the SQL for the databases which support them, but either way they should always be respected by Django." defect closed Core (Other) normal wontfix petertripp@… gabor@… Gonzalo Saavedra Design decision needed 0 0 0 0 0 0