Preventing a record from beng expandable in the navigation tree

On the left side of each record, there is a section called 'this-record' which has a list of related records. Have you ever had the case where you needed to prevent one of those related records from being expanded? You can achieve this easily using the expandable permissions. For example,



This getPermissions() method belongs to author's delegate table, where we check to see if we are currently in the conference table (author's belong to conferences). If we are, we just set the expandable permission to 0, and so when we go to a conference record none of the author records will be expandable in the navigation tree!