public MylistGroupInfo GetMylistGroup(string groupId) { return(UserMylists.SingleOrDefault(x => x.GroupId == groupId)); }
public bool CheckIsRegistratedAnyMylist(string videoId) { return(UserMylists.Any(x => x.CheckRegistratedVideoId(videoId))); }
public bool HasMylistGroup(string groupId) { return(UserMylists.Any(x => x.GroupId == groupId)); }