refactor: use sessionmaker().begin() in console app controllers (#34282)

Co-authored-by: Asuka Minato <i@asukaminato.eu.org>

api/controllers/console/app/workflow_trigger.py

@@ -4,7 +4,7 @@ from flask import request
 from flask_restx import Resource, fields, marshal_with
 from pydantic import BaseModel
 from sqlalchemy import select
-from sqlalchemy.orm import Session
+from sqlalchemy.orm import sessionmaker
 from werkzeug.exceptions import NotFound
 
 from configs import dify_config
@@ -64,7 +64,7 @@ class WebhookTriggerApi(Resource):
 
         node_id = args.node_id
 
-        with Session(db.engine) as session:
+        with sessionmaker(db.engine).begin() as session:
             # Get webhook trigger for this app and node
             webhook_trigger = (
                 session.query(WorkflowWebhookTrigger)
@@ -95,7 +95,7 @@ class AppTriggersApi(Resource):
         assert isinstance(current_user, Account)
         assert current_user.current_tenant_id is not None
 
-        with Session(db.engine) as session:
+        with sessionmaker(db.engine).begin() as session:
             # Get all triggers for this app using select API
             triggers = (
                 session.execute(
@@ -137,7 +137,7 @@ class AppTriggerEnableApi(Resource):
         assert current_user.current_tenant_id is not None
 
         trigger_id = args.trigger_id
-        with Session(db.engine) as session:
+        with sessionmaker(db.engine, expire_on_commit=False).begin() as session:
             # Find the trigger using select
             trigger = session.execute(
                 select(AppTrigger).where(
@@ -153,9 +153,6 @@ class AppTriggerEnableApi(Resource):
             # Update status based on enable_trigger boolean
             trigger.status = AppTriggerStatus.ENABLED if args.enable_trigger else AppTriggerStatus.DISABLED
 
-            session.commit()
-            session.refresh(trigger)
-
         # Add computed icon field
         url_prefix = dify_config.CONSOLE_API_URL + "/console/api/workspaces/current/tool-provider/builtin/"
         if trigger.trigger_type == "trigger-plugin":