Konfigurationsmodus für Tide begonnen

web.py

@@ -74,6 +74,14 @@ class WebInterface():
                   )
             self.cur.execute(sql)
             self.log.info(f"Created tide database: {dbpath}")
+        else:
+            # TODO Alte Daten aus vorhandener Datenbank bereinigen
+            ts = datetime.now().replace(minute=0, second=0, microsecond=0) - timedelta(days=2)
+            sql = "DELETE FROM data WHERE timestamp < ?"
+            self.cur.execute(sql, (ts,))
+            self.conn.commit()
+            if self.cur.rowcount > 0:
+                print("Tide: {} old data ponts have been deleted".format(self.cur.rowcount))
 
         self.pegelid = 'Schulau'
         self.bshid = self.pegeldata[self.pegelid]