try new method to update_trips

web/callback.py

@@ -13,7 +13,7 @@ from MyPSACC import MyPSACC
 from web import figures
 
 from web.app import app, dash_app, myp, chc, save_config
-from web.db import get_db
+import web.db
 
 
 @dash_app.callback(Output('trips_map', 'figure'),
@@ -158,7 +158,4 @@ dash_app.layout = dbc.Container(fluid=True, children=[
     data_div
 ])
 
-conn = get_db()
-conn.create_function("update_trips", 0, update_trips)
-conn.execute("CREATE TEMP TRIGGER IF NOT EXISTS update_trigger AFTER INSERT ON position BEGIN SELECT update_trips(); END;")
-conn.commit()
+web.db.update_callback = update_trips

web/db.py

@@ -7,11 +7,18 @@ def convert_datetime(st):
     return datetime.strptime(st.decode("utf-8"), "%Y-%m-%d %H:%M:%S+00:00").replace(tzinfo=pytz.UTC)
 
 
+def update_callback():
+    return
+
 def get_db():
     sqlite3.register_converter("DATETIME", convert_datetime)
     conn = sqlite3.connect('info.db', detect_types=sqlite3.PARSE_DECLTYPES | sqlite3.PARSE_COLNAMES)
     conn.row_factory = sqlite3.Row
     conn.execute("CREATE TABLE IF NOT EXISTS position (Timestamp DATETIME PRIMARY KEY, VIN TEXT, longitude REAL, "
                  "latitude REAL, mileage REAL, level INTEGER);")
+    conn.create_function("update_trips", 0, update_callback)
+    conn.execute(
+        "CREATE TEMP TRIGGER IF NOT EXISTS update_trigger AFTER INSERT ON position BEGIN SELECT update_trips(); END;")
+    conn.commit()
     conn.commit()
     return conn