Setup WordPress so that users that share the same level can edit pages

I’m in the midst of modding WordPress to act like a CMS for a site that I’m building. I wanted users of the same level to be able to edit pages. By changing line 20 in the admin/edit-pages.php file, it worked like a charm.

The original line looked like this:

AND ($wpdb->users.user_level < = $user_level OR $wpdb->posts.post_author = $user_ID)

I simply shifed the user_level check to allow page edits on pages that were created by users with levels either less than or equal to the active user’s level. New code looks like this:

AND ($wpdb->users.user_level < = $user_level OR $wpdb->posts.post_author = $user_ID)