Expressing object ownership in item update permissions

It seems like this one is likely related to your other post here.

If the is_admin_for relation is a many-to-many, then you need to go through the junction table and you’ll have to go deeper into that relationship.

So the syntax may look like:

$CURRENT_USER.is_admin_for.group

or

$CURRENT_USER.is_admin_for.group_id

Something along those lines depending on your exact schema structure.