哪里放置SQLite数据库以防止在OS X上的更新过程中覆盖它? [英] Where to put SQLite database to keep it from being over-ridden during update on OS X?

问题描述

我正在开发第一个OS X应用程序，该应用程序将通过Mac App Store分发.

I'm developing my first OS X application which will be distributed through Mac App Store.

该应用程序利用了sqlite数据库，该数据库目前与其他应用程序文件依赖项位于相同的位置.

The app makes use of an sqlite database which I am currently keeping on the same location as the rest of app file dependencies.

我正在使用Qt Framework开发应用程序.

I'm using Qt Framework to develop the application.

始终遵守App Store规则；

Keeping within the boundaries of App Store rules;

• 在哪里可以找到在应用程序更新期间不被覆盖的数据库文件?

• Where can I locate the database file for it not to be overridden during app updates?

我应该如何构建.app文件夹和所有依赖项?

How should I structure the .app folder and all the dependencies?

谢谢.

推荐答案

您的问题暗示您正在写入sqlite数据库，这是一个坏主意，因为该应用程序将存储在以下位置:用户可能没有写权限.

Your question implies that you are writing to the sqlite database, which is a bad idea given the application will be stored in a location (/Applications) that the user may not have write-access to.

您应该做的是在第一次使用时(或当您发现数据库不存在时)将数据库复制/创建到用户可写区域(应用程序容器的Documents文件夹将执行).

What you should do is copy/create the database to a user-writable area (the Documents folder of the app's container will do) upon first use (or when you detect it's not there) and use it from there.

编辑:为了获取文档"目录，请使用以下代码:

EDIT: In order to get the Documents directory use this code:

NSString *documentDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];

这将为您提供应用容器Documents目录的位置，而不是在对应用进行沙箱处理时的用户文档目录的位置:

This will give you the location of the app container Documents directory, not the user's Documents directory when the app is sandboxed:

~/Library/Containers/com.yourdomain.yourapp/Data/Documents

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