public static function getById($relationshipId)
    {
        $key = md5($relationshipId);
        if (isset(self::$_relationships[$key])) {
            return self::$_relationships[$key];
        }

        return false;
    }
public static function getById($relationshipId)
    {
        $key = md5($relationshipId);
        if (isset(self::$_relationships[$key])) {
            return self::$_relationships[$key];
        }

        return false;
    }
public static function getById ( $ relationshipId ) { $ key = md5 ( $ relationshipId ) ; if ( isset ( self :: $ _relationships [ $ key ] ) ) { return self :: $ _relationships [ $ key ] ; } return false ; }
Get by.

@param [[@doctodo param_type:relationshipId]] $relationshipId [[@doctodo param_description:relationshipId]]

@return [[@doctodo return_type:getById]] [[@doctodo return_description:getById]]
Get by .