refined grafana and prometheus

app/blueprints/slides/routes.py

@@ -1,7 +1,7 @@
 from . import slides_bp
 from flask import current_app, abort, redirect, url_for, request, send_from_directory
 from app.utils import get_cached_deck_info, token_required
-from app.models import Deck, db, Course
+from app.models import Deck, db, Course, PageView
 import os
 import flask_login
 import re
@@ -115,6 +115,13 @@ def serve_deck(course_folder, deck, token, path="index.html"):
             current_app.logger.info(
                 f"User {token.name} accessed deck {deck_info['deck_name']}"
             )
+            try:
+                pv = PageView(deck_id=deck_info["deck_id"], token_id=token.id)
+                db.session.add(pv)
+                db.session.commit()
+            except Exception as e:
+                db.session.rollback()
+                current_app.logger.error(f"Failed to log page view: {e}")
         return send_from_directory(deck_path, path)
 
     log_404("File missing within deck", deck, course_folder, path, token)