/**
* @brief check if the given class is in the given user's blacklist
* @param string $uid user
* @param string $class class id
* @return true if the class is blocked by the user, otherwise false
*/
private static function isBlacklisted($uid, $class)
{
if (!isset(self::$isBlockedStmt)) {
self::$isBlockedStmt = OCP\DB::prepare("SELECT COUNT(*) FROM *PREFIX*notification_blacklist WHERE uid = ? AND class = ?");
}
return (bool) self::$isBlockedStmt->execute(array($uid, $class))->fetchOne();
}