python - Django - 如何使用 South 重命名模型字段？

Question

我想更改模型中特定字段的名称:

class Foo(models.Model):
    name = models.CharField()
    rel  = models.ForeignKey(Bar)

应该改为:

class Foo(models.Model):
    full_name     = models.CharField()
    odd_relation  = models.ForeignKey(Bar)

使用 South 最简单的方法是什么？

Answer 1

您可以使用 db.rename_column功能。

class Migration:

    def forwards(self, orm):
        # Rename 'name' field to 'full_name'
        db.rename_column('app_foo', 'name', 'full_name')




    def backwards(self, orm):
        # Rename 'full_name' field to 'name'
        db.rename_column('app_foo', 'full_name', 'name')

db.rename_column 的第一个参数是表名，所以记住Django creates table names 是很重要的。 :

Django automatically derives the name of the database table from the name of your model class and the app that contains it. A model's database table name is constructed by joining the model's "app label" -- the name you used in manage.py startapp -- to the model's class name, with an underscore between them.

如果您有一个多字的驼峰式模型名称，例如 ProjectItem，则表名称将为 app_projectitem(即，不会在 之间插入下划线project 和 item 即使它们是驼峰式的)。