change_model allow_dangerous_deserialization to true

app.py

@@ -347,31 +347,33 @@ class ChatBot:
             return f"Error pemrosesan file: {str(e)}"
 
     def change_model(self, model_key):
-        """Change the model being used and recreate the chain if necessary"""
-        if model_key == self.model_key:
-            return f"Model {model_key} sudah digunakan."
-            
-        self.model_key = model_key
+    """Change the model being used and recreate the chain if necessary"""
+    if model_key == self.model_key:
+        return f"Model {model_key} sudah digunakan."
         
-        # If we have an active session with a file already loaded, recreate the chain
-        if self.csv_file_path:
-            try:
-                # Load existing database
-                db_path = f"{self.user_dir}/db_faiss"
-                embeddings = HuggingFaceEmbeddings(
-                    model_name='sentence-transformers/all-MiniLM-L6-v2',
-                    model_kwargs={'device': 'cpu'}
-                )
-                db = FAISS.load_local(db_path, embeddings)
-                
-                # Create new chain with the selected model
-                self.chain = create_conversational_chain(db, self.csv_file_path, self.model_key)
-                
-                return f"Model berhasil diubah ke {model_key}."
-            except Exception as e:
-                return f"Error mengubah model: {str(e)}"
-        else:
-            return f"Model diubah ke {model_key}. Silakan upload file CSV untuk memulai."
+    self.model_key = model_key
+    
+    # If we have an active session with a file already loaded, recreate the chain
+    if self.csv_file_path:
+        try:
+            # Load existing database
+            db_path = f"{self.user_dir}/db_faiss"
+            embeddings = HuggingFaceEmbeddings(
+                model_name='sentence-transformers/all-MiniLM-L6-v2',
+                model_kwargs={'device': 'cpu'}
+            )
+            
+            # Tambahkan flag allow_dangerous_deserialization=True
+            db = FAISS.load_local(db_path, embeddings, allow_dangerous_deserialization=True)
+            
+            # Create new chain with the selected model
+            self.chain = create_conversational_chain(db, self.csv_file_path, self.model_key)
+            
+            return f"Model berhasil diubah ke {model_key}."
+        except Exception as e:
+            return f"Error mengubah model: {str(e)}"
+    else:
+        return f"Model diubah ke {model_key}. Silakan upload file CSV untuk memulai."
 
     def chat(self, message, history):
         if self.chain is None: