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我試圖優化我的Django後端性能。我有一個使用Django Simple History(https://django-simple-history.readthedocs.io/en/latest/)跟蹤的模型用戶。刪除歷史記錄的Django批量更新
我希望能夠批量更新我的用戶模型,然後將其從歷史記錄中刪除。對於單個用戶,這看起來像這樣:
u = User.objects.get(id=user_id)
u.name = "new name"
u.save()
u.history.first().delete() # I don't want to track this change.
性能方面,哪個更好?
選項1:
users = User.objects.filter(needs_updating=True)
for user in users:
user.name = "New name"
user.save()
user.history.first().delete()
選項2:
User.objects.filter(needs_updating=True).update(name="new name")
User.history.filter(name="new name").delete()