fix bug

api/controllers/console/app/workflow.py

@@ -65,7 +65,7 @@ class DraftWorkflowApi(Resource):
 
         return {
             "result": "success",
-            "updated_at": TimestampField().format(workflow.updated_at)
+            "updated_at": TimestampField().format(workflow.updated_at or workflow.created_at)
         }
 
 

api/fields/app_fields.py

@@ -48,7 +48,7 @@ app_detail_fields = {
     'icon_background': fields.String,
     'enable_site': fields.Boolean,
     'enable_api': fields.Boolean,
-    'model_config': fields.Nested(model_config_fields, attribute='app_model_config'),
+    'model_config': fields.Nested(model_config_fields, attribute='app_model_config', allow_null=True),
     'created_at': TimestampField
 }
 
@@ -68,7 +68,7 @@ app_partial_fields = {
     'mode': fields.String,
     'icon': fields.String,
     'icon_background': fields.String,
-    'model_config': fields.Nested(model_config_partial_fields, attribute='app_model_config'),
+    'model_config': fields.Nested(model_config_partial_fields, attribute='app_model_config', allow_null=True),
     'created_at': TimestampField
 }
 
@@ -118,7 +118,7 @@ app_detail_fields_with_site = {
     'icon_background': fields.String,
     'enable_site': fields.Boolean,
     'enable_api': fields.Boolean,
-    'model_config': fields.Nested(model_config_fields, attribute='app_model_config'),
+    'model_config': fields.Nested(model_config_fields, attribute='app_model_config', allow_null=True),
     'site': fields.Nested(site_fields),
     'api_base_url': fields.String,
     'created_at': TimestampField,