ruby-on-rails - 带有保留关键字的模型

Question

我想创建一个名为"file"的模型，但它是一个保留模型名称是 rails。我想不出任何其他理智的方法来调用模型，所以我想知道是否有处理此问题的标准方法，例如添加前缀或后缀(_File、FileItem 等)？

Answer 1

此问题已通过 modules 解决:

Modules are a way of grouping together methods, classes, and constants. Modules give you two major benefits:

1. Modules provide a namespace and prevent name clashes.
2. Modules implement the mixin facility.

[...]

Modules define a namespace, a sandbox in which your methods and constants can play without having to worry about being stepped on by other methods and constants.

在你的情况下:

module MyRailsApp
  class File
  ...
  end
end

您的 File 类用作 MyRailsApp::File。这是 Ruby 中的典型解决方案，在 Ruby on Rails 中可能会有不同的处理方式，请参阅以下引用资料进行深入讨论:

• Handling namespace models (classes) in namespace
• ActiveRecord: Can haz namespaces?
• Namespaced models and controllers
• Namespaced models
• A simple alternative to namespaced models