python manage.py makemigrat Please select a fix: 1) Provide a one-off default now (will be set on all existing rows with a null value for this column) 2) Quit, and let me add a default in models.py

$ python manage.py makemigrations
None
You are trying to add a non-nullable field ‘file_type‘ to filejinja without a default; we can‘t do that (the database needs something to populate existing rows).
Please select a fix:
 1) Provide a one-off default now (will be set on all existing rows with a null value for this column)
 2) Quit, and let me add a default in models.py
Select an option:

    file_type = models.CharField(verbose_name="文件type", max_length=1, choices=(
        (‘1‘, "配置文件"),
        (‘2‘, "sls文件"),
    ), blank=True, null=True)

$ python manage.py makemigrations
None
Migrations for ‘minions‘:
  apps\minions\migrations\0011_filejinja_file_type.py
    - Add field file_type to filejinja

$ python manage.py makemigrations
None
Migrations for ‘minions‘:
  apps\minions\migrations\0010_filejinja.py
    - Create model FileJinja

liangshuo@zt-2013326 MINGW64 /f/11_goms/goms (master)
$ python manage.py migrate
None
Operations to perform:
  Apply all migrations: admin, auth, contenttypes, minions, salt, sessions
Running migrations:
  Applying minions.0010_filejinja... OK