fix(api): fix the issue that prefilled conv var not commited

api/controllers/console/app/workflow_draft_variable.py

@@ -306,6 +306,7 @@ class ConversationVariableCollectionApi(Resource):
             raise NotFoundError(description=f"draft workflow not found, id={app_model.id}")
         draft_var_srv = WorkflowDraftVariableService(db.session())
         draft_var_srv.prefill_conversation_variable_default_values(draft_workflow)
+        db.session.commit()
         return _get_variable_list(app_model, CONVERSATION_VARIABLE_NODE_ID)
 
 

api/services/workflow_service.py

@@ -324,19 +324,10 @@ class WorkflowService:
         if not draft_workflow:
             raise ValueError("Workflow not initialized")
 
-        # TODO(QuantumGhost): We may get rid of the `list_conversation_variables`
-        # here, and rely on `DraftVarLoader` to load conversation variables.
-
-        with Session(bind=db.engine) as session:
+        with Session(bind=db.engine, expire_on_commit=False) as session, session.begin():
             draft_var_srv = WorkflowDraftVariableService(session)
             draft_var_srv.prefill_conversation_variable_default_values(draft_workflow)
 
-            conv_vars_models = draft_var_srv.list_conversation_variables(app_id=app_model.id)
-            conv_vars = [
-                segment_to_variable(segment=v.get_value(), id=v.id, selector=v.get_selector())
-                for v in conv_vars_models.variables
-            ]
-
         node_config = draft_workflow.get_node_config_by_id(node_id)
         node_type = NodeType(node_config.get("data", {}).get("type"))
         if node_type == NodeType.START:
@@ -355,7 +346,8 @@ class WorkflowService:
                     user_id=account.id,
                     user_inputs=user_inputs,
                     workflow=draft_workflow,
-                    conversation_variables=conv_vars,
+                    # NOTE(QuantumGhost): We rely on `DraftVarLoader` to load conversation variables.
+                    conversation_variables=[],
                     node_type=node_type,
                     conversation_id=conversation_id,
                 )