Django:TypeError: __init__() missing 1 required positional argument: 'on_delete'
問題： TypeError: init() missing 1 required positional argument: ‘on_delete’web 緣由： 在Django 2.0之後的版本中，須要在引用外鍵時在括號內加入on_delete=models，以此產生聯級做用，避免兩個表內數據因發生變化而不一樣步致使異常。svg hbook=models.ForeignKey(BookInfo,
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- 1. 解決--TypeError: __init__() missing 1 required positional argument: 'on_delete'
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