Admin delete-cascade check doesn't support per-object permissions

[Kidwind]

I'm overriding ModelAdmin for my object permission Backend like this

def has_delete_permission(self, request, obj=None):
    opts = self.opts
    return request.user.has_perm(opts.app_label + '.' + opts.get_delete_permission(), obj)     # pass parm obj

but when i delete the obj, I get "Deleting the article 'test' would result in deleting related objects, but your account doesn't have permission to delete the following types of objects:article".

Why? I try to find the root of the problem.

In django.contrib.admin.utils.get_deleted_objects, it doesn't pass "obj" to detect the permission for related deleted obj.
Django did not provide extension points，I can only change the django source code.

When I try to implement object permissions for django admin, what is the best solution? Thank you.

[Carl Meyer]

Yes, get_deleted_objects should pass on the specific object in that permission check. Thanks for the report!

[marw85]

added tests, but change breaks other tests

[marw85]

added tests, but change breaks other tests

[marw85]

improved tests a bit, but proposed change (passing object to permission check) still breaks admin_views.AdminViewPermissionsTest

[Mikhail Korobov]

Similar ticket: #13539

[Tim Graham]

Duplicate of #13539