TypeError: __init__() missing 1 required positional argument: ‘on_delete‘
b = models.ForeignKey(to=‘Business‘, to_field=‘id‘)
此处查询文件，缺少属性 on_delete=models.DO_NOTHING，只需在后面加上即可
b = models.ForeignKey(to=‘Business‘, to_field=‘id‘,on_delete=models.DO_NOTHING)
原文：https://www.cnblogs.com/bocaimao/p/12990672.html