Python 如何使用 Django migrate 命令跳过迁移？
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How can I skip a migration with Django migrate command?
提问by NeoWang
First, I am asking about Django migration introduced in 1.7, not south.
首先，我问的是 1.7 中引入的 Django 迁移，而不是south.
Suppose I have migrations 001_add_field_x, 002_add_field_y, and both of them are applied to database. Now I change my mind and decide to revert the second migration and replace it with another migration 003_add_field_z.
假设我有 migrations 001_add_field_x，002_add_field_y，并且它们都应用于数据库。现在我改变主意并决定恢复第二次迁移并将其替换为另一个迁移003_add_field_z。
In other words, I want to apply 001 and 003, skipping 002, how can I do this?
换句话说，我想申请001和003，跳过002，我该怎么做？
P.S. I know I can migrate backwards to 001, but after I make the 003 migration and execute migrate command, 001 through 003 will all be applied, right?
PS我知道我可以向后迁移到001，但是在我进行003迁移并执行迁移命令后，001到003都会被应用，对吧？
采纳答案by karthikr
You can use the --fakeoption.
您可以使用该--fake选项。
Once you revert to 0001you can run
一旦你恢复到0001你可以运行
python manage.py migrate <app> 0002 --fake
and then run
然后运行
python manage.py migrate <app> #Optionally specify 0003 explicitly
which would apply only 0003in this case.
这仅适用0003于这种情况。
If you do not want to follow this process for all the environment/other developers, you can just remove the migration files, and run a new makemigration, and commit that file - and yes, do run migratewith the --fakeoption
如果您不想为所有环境/其他开发人员遵循此过程，您可以删除迁移文件，然后运行一个新的makemigration，并提交该文件 - 是的，请migrate使用--fake选项运行
回答by Nagev
Not applicable to this specific case, but if one wants or needs to skip allunapplied migrations, this can be used:
不适用于这种特定情况，但如果想要或需要跳过所有未应用的迁移，可以使用：
python manage.py migrate --fake
Just saves a bit of typing.
只是节省了一点打字的时间。
