/**
* return foreign links
*
* @access public
* @return array
*/
function links()
{
if (!self::$_links) {
self::$_links = array('price_field_id' => 'civicrm_price_field:id', 'membership_type_id' => 'civicrm_membership_type:id');
}
return self::$_links;
}
