/**
* Returns an array containing, for each field, the arary key used for that
* field in self::$_fields.
*
* @access public
* @return array
*/
static function &fieldKeys()
{
if (!self::$_fieldKeys) {
self::$_fieldKeys = array('id' => 'id', 'location' => 'location', 'standard_hours' => 'standard_hours', 'periodicity' => 'periodicity', 'is_active' => 'is_active');
}
return self::$_fieldKeys;
}
