You have 1 unapplied migration(s). Your project may not work properly until you apply the migrations for app(s): shopadmin. Run 'python manage.py migrate' to apply them.

数据库迁移时报错，

You have 1 unapplied migration(s). Your project may not work properly until you apply the migrations for app(s): shopadmin.
Run 'python manage.py migrate' to apply them.

可以执行 python manage.py migrate

它可以让我们在修改Model后可以在不影响现有数据的前提下重建表结构。