Update src/streamlit_app.py

src/streamlit_app.py

@@ -53,19 +53,24 @@ def get_tmdb_data(title, year=None):
         pass
     return POSTER_PLACEHOLDER, None
 
-def load_ratings():
+@st.cache_data
+def load_ratings_cached():
     if os.path.exists(RATINGS_JSON_PATH):
         with open(RATINGS_JSON_PATH, "r") as f:
             return json.load(f)
     return []
 
+
 def save_rating_to_json(entry):
-    all_ratings = load_ratings()
+    all_ratings = load_ratings_cached()
     all_ratings = [r for r in all_ratings if r["movie_id"] != entry["movie_id"]]
     all_ratings.append(entry)
     with open(RATINGS_JSON_PATH, "w") as f:
         json.dump(all_ratings, f, indent=2, default=str)
 
+    # Cache invalidieren
+    load_ratings_cached.clear()
+
 @st.cache_data(show_spinner=False)
 def load_movies():
     df = pd.read_csv(MOVIES_PATH)
@@ -180,7 +185,7 @@ movie_id = query_params.get("movie_id")
 def render_star_rating(rating):
     return "".join(["<span class='star'>★</span>" for _ in range(rating)])
 
-all_ratings_data = load_ratings()
+all_ratings_data = load_ratings_cached()
 
 if movie_id:
     try:
@@ -216,15 +221,15 @@ if movie_id:
             if st.button("Submit Rating", key="submit_rating_btn"):
                 save_rating_to_json({
                     "movie_id": int(movie["movieId"]),
-                    "rating": rating,
+                    "rating": new_rating,
                     "timestamp": datetime.now().isoformat()
                 })
-                st.session_state["just_submitted"] = True
-                st.rerun()
+            
+                st.success("Rating saved.")  # Sofort anzeigen
+                # Query-Parameter setzen, um neu zu laden und auf derselben Detailseite zu bleiben
+                st.experimental_set_query_params(movie_id=movie["movieId"])
+                st.experimental_rerun()
 
-            if st.session_state.get("just_submitted"):
-                st.success("Rating saved.")
-                del st.session_state["just_submitted"]
 
 
     except Exception as e: