check

printing/handlers.py

@@ -33,6 +33,11 @@ def on_printing_job_process_completed(sender, **kwargs):
     """
     from shipment.models import SalesItem, UnitChoices
     
+    logger.info(
+        f'[printing.handlers] 收到 process_completed 信号: '
+        f'sender={sender}, kwargs keys={list(kwargs.keys())}'
+    )
+    
     content_object = kwargs.get('content_object')
     business_object = kwargs.get('business_object')
     last_completed_by = kwargs.get('last_completed_by')
@@ -42,6 +47,7 @@ def on_printing_job_process_completed(sender, **kwargs):
         return
     
     printing_job = content_object
+    logger.info(f'[printing.handlers] 处理 PrintingJob #{printing_job.id}')
     
     # 从 settings 获取配置
     source_state_id = getattr(settings, 'PRINTING_SALES_ITEM_SOURCE_STATE_ID', None)