public static bool Insert(PronVM Pronunciation)
        {
            if (Pronunciations.Any(s => s.Text == Pronunciation.Text))
            {
                var old_Pron  = Pronunciations.First(s => s.Text == Pronunciation.Text);
                var old_score = ScoreHelper.GetScoreFromImportance(old_Pron.Importance);
                var new_score = ScoreHelper.GetScoreFromImportance(Pronunciation.Importance);

                if (new_score > old_score)
                {
                    var to_update = new PronVM(old_Pron.Id, old_Pron.Text, old_Pron.Phonemes, Pronunciation.Importance, old_Pron.IsActive);
                    return(Update(to_update));
                }
                else
                {
                    return(Errors.ThrowErrorMsg(ErrorType.AlreadyInserted, Pronunciation.Text));
                }
            }

            if (!InsertPronunciation(Pronunciation.ToModel()))
            {
                return(false);
            }

            Pronunciation.LoadCrossData();

            return(true);
        }
        public static bool Update(PronVM Pronunciation)
        {
            if (!UpdatePronunciation(Pronunciation.ToModel()))
            {
                return(false);
            }

            var oldVM = Pronunciations.FindIndex(x => x.Id == Pronunciation.Id);

            Pronunciations.Insert(oldVM, Pronunciation);

            return(true);
        }
        public static IEnumerable <IQuest> Get(Model type)
        {
            LoadDB(type);

            switch (type)
            {
            case Model.Voc:
                return(Vocabularies.Cast <IQuest>());

            case Model.Pron:
                return(Pronunciations.Cast <IQuest>());

            case Model.Spell:
                return(Spellings.Cast <IQuest>());

            default:
                Errors.ThrowErrorMsg(ErrorType.InvalidModelType, type);
                return(new List <IQuest>());
            }
        }