primary_key fix in appvoal body admin.

application/views/approval_body_admin.xhtml

@@ -58,7 +58,7 @@
         <?php echo $this->formSelect('group',
                                      $this->approvalBodyRole->group,
                                      null,
-                                     $this->groups->columnToArray('name', 'id')); ?>
+                                     $this->groups->columnToArray('name', Groups::getInstance()->getPrimaryKeyName(true))); ?>
         <?php echo $this->formSubmit('Submit', 'Submit'); ?>
     </form>
 </div>