private void SaveBellyEntrySample()
        {
            var newModel = new BellyEntryModel();

            newModel.Vorname      = "Filip";
            newModel.Nachname     = "Juric";
            newModel.Gender       = Gender.Male;
            newModel.Geburtsdatum = new DateTime(1996, 2, 7);
            newModel.IdentifyGuid = Guid.NewGuid();
            newModel.CreatedAt    = DateTime.Now;

            dbc.SaveBellyEntry(newModel);
        }
 public void SaveBellyEntry(BellyEntryModel model)
 {
     try
     {
         // Open database (or create if not exits)
         using (var db = new LiteDatabase(appDbPath))
         {
             var bellyentrys = db.GetCollection <BellyEntryModel>("bellyentrys");
             bellyentrys.Upsert(model);
             bellyentrys.EnsureIndex(x => x.IdentifyGuid);
         }
     }
     catch (Exception e)
     {
         Toast.MakeText(Application.Context, e.ToString(), ToastLength.Long);
     }
 }