public static bool TryGetUniverseCompetitionId(int universeId, int competitionId, Entities context, out int id)
        {
            var key = string.Format("{0}-{1}", universeId, competitionId);

            if (!UniverseCompetitions.TryGetValue(key, out id))
            {
                var universeCompetition = context.UniverseCompetitions.FirstOrDefault(
                    x => x.IdCompetition == competitionId && x.IdUniverse == universeId);
                if (universeCompetition == null)
                {
                    return(false);
                }

                UniverseCompetitions[key] = universeCompetition.Id;
                id = universeCompetition.Id;
            }
            return(true);
        }
        public static void ClearCache(Caches cache)
        {
            switch (cache)
            {
            case Caches.All:
                CompetitionTeams.Clear();
                Teams.Clear();
                TeamsValue.Clear();
                UniverseCompetitions.Clear();
                UserCompetitions.Clear();
                UserUniversesRights.Clear();
                CompetitionTeams.Clear();
                Pricer.PricerHelper.Clear();
                UserUniversesRights.Clear();
                return;

            case Caches.TeamsName:
                Teams.Clear();
                return;

            case Caches.TeamsValue:
                TeamsValue.Clear();
                return;

            case Caches.UniverseCompetitions:
                UniverseCompetitions.Clear();
                return;

            case Caches.UserCompetitions:
                UserCompetitions.Clear();
                return;

            case Caches.UserUniversesRights:
                UserUniversesRights.Clear();
                return;

            case Caches.UserDefaultUniverse:
                UserDefaultUniverse.Clear();
                return;
            }
        }