Django cannot serialize model.Decimal

Question

When I write a Python/Django class like:

class MyClass(models.Model):
    price = models.DecimalField(..., max_digits=5, decimal_places=2)

I get the following error when running python manage.py makemigrations:

ValueError: Cannot serialize: Ellipsis

There are some values Django cannot serialize into migration files.

For more, see https://docs.djangoproject.com/en/2.0/topics/migrations/#migration-serializing

If I exclude all decimal variables from all of my classes, then the above command runs successfully.

So, how does one include decimals in a way that is acceptable to Django?

Answer 1

根据文档，DecimalField max_digits和decimal_places需要两个参数。您可以查看here。

要使用django，您需要从班级中删除elipses。你可以使用

models.DecimalField(max_digits=5, decimal_places=2)

或

models.DecimalField(default=0, max_digits=5, decimal_places=2)