Work on native gui. Display records and add missing tasks and measurements.

yms/model/dbrecord.py

@@ -23,7 +23,7 @@ class DbRecord:
         self.conn = db.conn
         self.last_update = None
 
-        self.title = _("DbRecord({})") # for pretty print
+        self._title = _("DbRecord({})") # for pretty print
 
         if record_id is not None:
             self.pk_value = int(record_id)
@@ -142,7 +142,7 @@ class DbRecord:
         return True
 
     def __str__(self):
-        out = [self.title.format(self.pk_value)]
+        out = [self._title.format(self.pk_value)]
         for field in self.fields:
             value = getattr(self, field, None)
             out.append(" {:15}: {}".format(field, value))