constants模块官方文档

最新推荐文章于 2024-09-09 00:25:01 发布

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最新推荐文章于 2024-09-09 00:25:01 发布

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本文档介绍了constants模块，用于解决应用程序在不同环境中使用常量的问题。它使用.ini文件来存储不同环境中的常量值，并通过环境变量指定当前环境。在初始化时，constants会根据指定的环境变量从.ini文件加载相应的常量。常量值可以按字典方式或属性方式访问，并且在尝试更改常量时会发出警告。此外，模块还提供了日志记录功能。

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Project description

The problem?

Most applications use constants. Many constants take different values based on the environment the application is executed in.

Think database credentials over development, testing, staging, production or stock market execution over development, testing, paper, production …

A solution

Shamelessly inspired by the app_constants gem, constants aims to solve that problem (and that problem only).

.ini file

constants uses the .ini file format to specify the application constants values in each environment. DEFAULT values are available in every environment unless specifically overridden in a section.