public List <ExpertStat> GenerateExpertsOverallRating()
        {
            var fetchStrategies = new IFetchStrategy <Expert>[] { new Persistence.DAL.FetchStrategies.ExpertsFetchStrategies.ExpertsFetchPredictions() };
            var experts         = _context.GetExperts(fetchStrategies).ToList <Expert>();
            var validExperts    = experts.Where(e => !e.Predictions.ToList().IsNullOrEmpty());

            var expertStats = validExperts.Select(e => new ExpertStat(e.Nickname,
                                                                      e.Predictions.Count,
                                                                      Math.Round((double)e.GetPredictionsSum() / e.Predictions.Count, 2),
                                                                      e.GetPredictionsSum()))
                              .ToList();

            for (int i = 0; i < expertStats.Count; i++)
            {
                if (expertStats[i].Nickname == "Mary I Tudor")
                {
                    expertStats[i].Sum   += 6;
                    expertStats[i].AvgSum = Math.Round((double)expertStats[i].Sum / expertStats[i].PredictionsCount, 2);
                }
            }

            return(expertStats);
        }
 public IReadOnlyList <Expert> GetExperts()
 {
     return(_context.GetExperts().ToList());
 }