为什么没有检测到迁移，但是我只是创建了新迁移？ [英] Why there is no migrations detected but I just created new migrations?
问题描述
这是我的工作流程，通过 makemigrations 和 migration ，一切看起来都很好。但是，我想从模型开始，所以我：
This is my workflow, everything seems nice and tidy with makemigrations and migrate. However, I want to start over with my models, so I:
- rm -rf django应用程序目录中的所有迁移文件；
- 删除数据库中的所有相关表；
- makemigrations生成新的迁移文件；
但是当我想将其迁移到数据库中时，会说没有要应用的迁移。我认为迁移背后的机制是模型->迁移->数据库更改，如果我删除后两个，它应该再次遍历。
But when I want to migrate it into database, it is said No migrations to apply. I think the mechanism behind migrations is that models -> migrations -> database changes, if I drop the latter two it should go over again. Unfortunately it is not.
Django == 1.8.2
Django == 1.8.2
已关闭是名为 django-migrations 的表，该表跟踪所有更改并删除相关记录，然后进行迁移。
CLOSED There is a table called django-migrations tracking all the changes and delete related records and then I could make migrations. Thx to those who helped!
推荐答案
还有另一个表django_migrations可以跟踪每个应用程序已运行的迁移。您必须将其重置，以便django知道您已经重新开始。
There's another table that keeps track of which migrations have been ran for each app, django_migrations. You'll have to reset that in order for django to know you have started over.
如果您已经更改了数据库，然后尝试运行
if you changed the database already then try running
python manage.py migration< app> --fake zero
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