直连数据库更新失败任务状态时，不更新update_at

FworkSpider/feapder/buffer/item_buffer.py

@@ -135,21 +135,29 @@ class ItemBuffer(threading.Thread):
                     if data.failed_retries >= setting.SPIDER_MAX_RETRY_TIMES:
                         state = 4  # 待采集任务停止采集状态[4=停止采集]
 
+                        '''更新失败的采集任务状态'''
+                        update_item = UpdateItem(
+                            state=state,
+                            pyuuid=data.pyuuid,
+                            update_at=update_at,
+                            failed_retries=data.failed_retries,
+                        )
+                        update_key = ['state', 'update_at', 'failed_retries']
+
                         '''记录失败的采集任务详情'''
                         data.state = state
                         data.create_at = update_at
                         failed_task_items.append(data)
                     else:
-                        state = 3  # 待采集任务失败采集状态[3=采集失败]
-
-                    '''更新失败的采集任务状态'''
-                    update_item = UpdateItem(
-                        state=state,
-                        pyuuid=data.pyuuid,
-                        failed_retries=data.failed_retries,
-                        update_at=update_at,
-                    )
-                    update_item.update_key = ['state', 'update_at', 'failed_retries']
+                        '''更新失败的采集任务状态'''
+                        update_item = UpdateItem(
+                            state=3,  # 待采集任务失败采集状态[3=采集失败]
+                            pyuuid=data.pyuuid,
+                            failed_retries=data.failed_retries,
+                        )
+                        update_key = ['state', 'failed_retries']
+
+                    update_item.update_key = update_key
                     update_item.table_name = setting.TASK_REQUEST_PRODUCE
                     update_items.append(update_item)