python - Django 模型错误 - "TypeError: ' xxx' 是此函数的无效关键字参数

Question

我得到错误:

TypeError: 'person' is an invalid keyword argument for this function

我的模型是:

class Investment(models.Model):
company = models.ManyToManyField("Company", related_name ="Investments_company")
financial_org = models.ManyToManyField("Financial_org", related_name ="Investments_financial_org")
person = models.ManyToManyField("Person", related_name ="Investments_person")

我的测试(给出错误):

investment1 = Investment(company = [], financial_org = financial1, person = [])

Answer 1

1. 在没有多对多的情况下实例化您的模型，investment1 = Investment()

2. 保存您的模型，investment1.save()

3. 多对多相加，有several ways to do it像 investment1.person.add(person_model) 或 investment1.person.create(name='foo')

在保存模型之前，您不能使用 ManyToMany 关系，这是因为 ManyToMany 关系表中的一行需要关系两侧模型的 pk。