update indentation change_models

app.py

@@ -347,33 +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."
+        """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
+        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'}
-            )
+        # 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)
+                # 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)
+                # 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."
+                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: