Ticket #15636: 15636.1.patch

wp-admin/includes/user.php

@@ -184 +184 @@
         global $wp_roles;
 
         $all_roles = $wp_roles->roles;
+        
+        uasort( $editable_roles, '_sort_editable_roles' );
+        
         $editable_roles = apply_filters('editable_roles', $all_roles);
 
         return $editable_roles;
 }
 
 /**
+ * Helper function used in the one above - get_editable_roles, as sorting
+ * callback, in order to achieve sorted roles by capabilities.
+ *  
+ * @param array $role_a
+ * @param array $role_b
+ * @return int
+ */
+function _sort_editable_roles($role_a, $role_b) {
+        $first_cap_count = count( $role_a['capabilities'] );
+        $second_cap_count = count( $role_b['capabilities'] );
+
+        // The capability count is equal, sorting by name then.
+        if ( $first_cap_count == $second_cap_count )
+                return strcmp ( $role_a['name'], $role_b['name'] );
+
+        // Less capabilities goes up
+        return ( $first_cap_count > $second_cap_count ) ? 1 : -1;
+}
+
+/**
  * Retrieve user data and filter it.
  *
  * @since 2.0.5