Django 1.7 同步未迁移的应用程序

Question

我开始了我的模型:

myapp.models.py

class MyModel(models.Model):

    field_a = models.FloatField()
    field_c = models.FloatField()

然后跑 ./manage.py migrate在我的新项目中，一切都很好:

Operations to perform:
  Synchronize unmigrated apps: myapp
  Apply all migrations: admin, contenttypes, auth, sessions
Synchronizing apps without migrations:
  Creating tables...
    Creating table myapp_mymodel
  Installing custom SQL...
  Installing indexes...
Running migrations:
  Applying contenttypes.0001_initial... OK
  Applying auth.0001_initial... OK
  Applying admin.0001_initial... OK
  Applying sessions.0001_initial... OK

然后我改变了我的模型:

class MyModel(models.Model):

    field_a = models.FloatField()
    field_b = models.FloatField()
    field_c = models.FloatField()

我跑了 ./manage.py migrate又一次什么也没发生。

(project)$ ./manage.py migrate 
Operations to perform:
  Synchronize unmigrated apps: myapp
  Apply all migrations: admin, contenttypes, auth, sessions
Synchronizing apps without migrations:
  Creating tables...
  Installing custom SQL...
  Installing indexes...
Running migrations:
  No migrations to apply.

我想知道我需要做什么才能让我的新应用程序迁移？

Answer 1

Ack，回答了我自己的问题。

我需要做的是运行:

./manage.py makemigrations myapp