如何重置migration

情景一:不需要原有的数据库数据

删除数据库所有的表

删除项目的migration模块中的所有文件，除了init.py 文件

执行脚本

python manage.py makemigrations python manage.py migrate

情景二:不想要删除现有的数据库，只是想重新建立 migration 文件

1、首先要保证,目前的migration文件和数据库是同步的，通过执行

python manage.py makemigrations No changes detected

2、执行命令查看所有的migrations(mock和okr是app名)

python manage.py showmigrations admin [X] 0001_initial [X] 0002_logentry_remove_auto_addauth [X] 0001_initial [X] 0002_alter_permission_name_max_length [X] 0003_alter_user_email_max_length [X] 0004_alter_user_username_opts [X] 0005_alter_user_last_login_null [X] 0006_require_contenttypes_0002 [X] 0007_alter_validators_add_error_messages [X] 0008_alter_user_username_max_length [X] 0009_alter_user_last_name_max_lengthcontenttypes [X] 0001_initial [X] 0002_remove_content_type_namemock [X] 0001_initial [X] 0002_remove_project_owner [X] 0003_project_ownerokr [X] 0001_initialsessions [X] 0001_initial

3、重置所有app的migration

# 执行多次,admin是可变参数.获取上个命令的app名python manage.py migrate --fake-initial admin zeroOperations to perform:  Unapply all migrations: adminRunning migrations:  Rendering model states... DONE  Unapplying admin.0002_logentry_remove_auto_add... OK  Unapplying admin.0001_initial... OK

4、删除App中migrations文件夹下所有的文件(除init.py之外)之后执行

python manage.py makemigrationspython manage.py migrate --fake-initialOperations to perform:  Apply all migrations: admin, auth, contenttypes, mock, okr, sessionsRunning migrations:  Applying contenttypes.0001_initial... OK  Applying contenttypes.0002_remove_content_type_name... OK  Applying auth.0001_initial... OK  Applying auth.0002_alter_permission_name_max_length... OK  Applying auth.0003_alter_user_email_max_length... OK  Applying auth.0004_alter_user_username_opts... OK