public async Task <SqliteDataLayer.LetterRecord> AddLetterRecordAsync(SqliteDataLayer.LetterRecord letterRecord)
        {
            _context.LetterRecords.Add(letterRecord);
            await _context.SaveChangesAsync();

            return(letterRecord);
        }
        public async Task <SqliteDataLayer.LetterRecord> UpdateLetterRecordAsync(SqliteDataLayer.LetterRecord record)
        {
            if (!_context.LetterRecords.Local.Any(c => c.Id == record.Id))
            {
                _context.LetterRecords.Attach(record);
            }
            _context.Entry(record).State = EntityState.Modified;
            await _context.SaveChangesAsync();

            return(record);
        }
 public static bool checkps(SqliteDataLayer.LetterRecord rec, Beta st)
 {
     return(rec.BetaID == st.Id);
 }