public async Task <bool> AddAchievementsAsync(IEnumerable <Achievement> achievements)
        {
            _achievmentsCacheContainer.Fill(achievements);

            return(await Task.Run(() =>
            {
                using (var db = new DietManagerDB())
                {
                    var rowsCopied = db.BulkCopy(achievements);

                    return achievements.Count() == (int)rowsCopied.RowsCopied;
                }
            }));
        }