BusinessLogic.Logic.Players.PlayerRetriever.GetPlayerIdForCurrentUser C# (CSharp) Method

        public virtual int GetPlayerIdForCurrentUser(string applicationUserId, int gamingGroupId)
        {
            return (from player in dataContext.GetQueryable<Player>()
                    where player.GamingGroupId == gamingGroupId
                     && player.ApplicationUserId == applicationUserId
                    select player.Id)
                    .FirstOrDefault();
        }