Django 模型在保存后不持久

Question

我正在设置 FK 字段并保存，但正如您在跟踪日志中看到的那样，如果我检索对象，它的 FK 字段将返回到其预先保存的值，则保存似乎不会保留在数据库中。

型号代码

def do_transition(self, workflow_aware=None):
    ws = WorkflowState.objects.get(state=self.transition_to_state, workflow=workflow_aware.workflow)
    logging.debug("WorkflowState=%s" % ws)
    workflow_aware.current_state = ws
    workflow_aware.save()
    logging.debug(workflow_aware.current_state)
    activitycontent = workflow_aware.__class__.objects.get(pk=workflow_aware.pk)
    logging.debug(activitycontent.current_state)

跟踪日志

- DEBUG - WorkflowState=ActivityContent_Workflow_Submitted
- INFO - programcreator.base.models                   save() 
- INFO - programcreator.groupflow.models              save() 
- DEBUG - ActivityContent_Workflow_Submitted
- DEBUG - ActivityContent_Workflow_Draft