Update app.py

app.py

@@ -6,12 +6,17 @@ from extensions import mongo, mail
 
 # --- START DATABASE CONNECTION FIX ---
 # Reads the MONGO_URI from the environment/secrets (set via Hugging Face Secrets).
-# If the secret is set, it uses that value. If not, it falls back to the local placeholder.
 MONGO_URI_SECRET = os.environ.get('MONGO_URI') 
+
+# Define the database name to be used (ensure this name exists in your Atlas cluster)
+DB_NAME = "subjective_assessment_db" # <--- ASSUMING YOUR DATABASE NAME IS THIS
+
 if MONGO_URI_SECRET:
     # Use the MONGO_URI from the environment (Hugging Face Secret) for deployment
     class Config:
         MONGO_URI = MONGO_URI_SECRET
+        # CRITICAL FIX: Explicitly set the database name for the connection object
+        MONGO_DBNAME = DB_NAME 
     app = Flask(__name__)
     app.config.from_object(Config)
 else:
@@ -23,6 +28,7 @@ else:
 # --- END DATABASE CONNECTION FIX ---
 
 # Initialize extensions
+# The `mongo` object will now have a correct `.db` attribute if the connection succeeds
 mongo.init_app(app)
 mail.init_app(app)
 
@@ -42,8 +48,9 @@ from services.evaluation import evaluate_answer # Imported, models loaded here
 @app.route("/")
 def home():
     # This line attempts the database connection and was causing the crash
+    # The fix ensures 'mongo.db' is the correct database object
     tests = list(mongo.db.tests.find({}, {"_id": 0})) 
     return render_template("home.html", tests=tests)
 
 if __name__ == "__main__":
-    app.run(debug=True)
+    app.run(debug=True)