public static function GetAllForSql() { if (self::$ALL_FOR_SQL === null) { global $DB; self::$ALL_FOR_SQL = array("'" . $DB->ForSql(self::Lead) . "'", "'" . $DB->ForSql(self::Contact) . "'", "'" . $DB->ForSql(self::Company) . "'", "'" . $DB->ForSql(self::Deal) . "'", "'" . $DB->ForSql(self::Activity) . "'", "'" . $DB->ForSql(self::Invoice) . "'"); } return self::$ALL_FOR_SQL; }