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

yms/database.py

@@ -125,6 +125,22 @@ class Database:
         self.conn.commit()
         return self.cur.rowcount == 1
 
+    def load_setting(self, sno):
+        sql = "SELECT valstr, valint FROM settings WHERE userid=0 AND sno=%s"
+        self.cur.execute(sql, (sno,))
+        row = self.cur.fetchone()
+        if not row:
+            sql = "INSERT INTO settings (userid, sno) VALUES (0, %s)"
+            self.cur.execute(sql, (sno,))
+            self.conn.commit()
+            return (None, None)
+        return row
+
+    def save_setting(self, sno, valstr, valint):
+        sql = "UPDATE settings SET valstr=%s, valint=%s WHERE userid=0 AND sno=%s"
+        values = (valstr, valint, sno)
+        return self.execute_write(sql, values, 1)
+
     def execute_write(self, sql, values=(), expected_rows=None):
         """
         Execute an INSERT, UPDATE, or DELETE statement.