澄清django syncdb --all选项 [英] Clarification on django syncdb --all option

问题描述

我正在尝试了解什么是 ./ manage.py syncdb --all ？我最近有一个数据库问题，我可以通过运行这个命令来修复，但我不完全确定它在幕后做了什么。我明白syncdb为没有迁移到南方的已安装应用程序创建表，而忽略了南移动控制的那些应用程序的表，除非指定了--all选项，但是我被实际发生的情况和何时使用而感到困惑它。我无法在 django-admin docs 而手册页只对这个选项说了这个。 - 所有使syncdb适用于所有应用程序，甚至可以迁移到所有应用程序上。

I am trying to understand what exactly ./manage.py syncdb --all does? I recently had a database issue that I was able to fix by running this command but I am not exactly sure what it does behind the scenes. I understand that syncdb creates the tables for the installed apps that aren't being migrated with south and that those that are under south migration control are overlooked unless the --all option is specified but I am confused by what actually happens and when to use it. I am unable to find anything about the option on the django-admin docs and the man pages only say this about the option.

--all                 Makes syncdb work on all apps, even migrated ones. Be
                        careful!

为什么我需要小心？这究竟在做什么？是完全删除数据库并重新开始，我认为这将导致我丢失数据库中存储的所有数据（对吗？），还是在这里发生的其他事情？我正在使用Django 1.6，如果这有所作为。

Why do I need to be careful? What exactly is this doing? Is it completely deleting the database and starting over, which I assume would cause me to lose all of my data stored in the database (right?), or is something else happening here? I am using Django 1.6 if that makes a difference.

推荐答案

当您安装南方时，它会用自己的Django替代Django的syncdb命令。它是 syncdb的南方版本，它具有 - all 选项，但不推荐：

When you install south, it replaces Django's syncdb command with its own. It is the south version of syncdb that has the --all option, but its not recommended:

如果要在所有应用程序上运行syncdb，请使用 - all ，但要警告;这将使您的数据库模式和迁移失去同步。如果这样做，您可能可以通过以下方式进行修复：

If you want to run syncdb on all of the apps, then use --all, but be warned; this will put your database schema and migrations out of sync. If you do this, you might be able to fix it with:

syncdb命令不会删除表。您需要小心，因为您不希望数据库模式和迁移失去同步。

The syncdb command never deletes tables. You need to be careful because you don't want the database schema and migrations to get out of sync.

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