moved some models added cron and websocket base class

backend/auth/oidc.py

@@ -2,6 +2,7 @@
 """
 OIDC login auth module
 """
+from datetime import datetime
 
 import flask
 from flask import jsonify, redirect, url_for
@@ -45,7 +46,9 @@ def create_or_retrieve_user_from_userinfo(userinfo):
 
     if user is not None:
         app.logger.info("user found")
-        #TODO: update user!
+        user.last_seen = datetime.utcnow()
+        # TODO: update user!
+        db.session.commit()
         return user
 
     user = User(email=email, first_name=userinfo.get("given_name", ""),