feat: log formatted

printing/models.py

@@ -482,6 +482,11 @@ class PrintingJob(ModelBase):
         verbose_name='克隆来源任务ID',
         help_text='前端克隆概念：记录本任务由哪个任务复制而来（无外键约束）',
     )
+    sub_id = models.IntegerField(
+        null=True,
+        blank=True,
+        verbose_name='子编号',
+    )
     business_object = models.OneToOneField(
         stateflow_models.BusinessObject,
         on_delete=models.SET_NULL,