/**
* Returns an array containing, for each field, the arary key used for that
* field in self::$_fields.
*
* @return array
*/
static function &fieldKeys()
{
if (!self::$_fieldKeys) {
self::$_fieldKeys = array('id' => 'id', 'name' => 'name', 'description' => 'description', 'start' => 'start', 'end' => 'end', 'date_format' => 'date_format', 'time_format' => 'time_format');
}
return self::$_fieldKeys;
}
