在 Rails 中覆盖 default_scope [英] Overriding default_scope in Rails

问题描述

在我的 Post.rb 模型中，我有 default_scope :conditions =>{:已删除 =>'假'}

In my Post.rb model, I have default_scope :conditions => {:deleted => 'false'}

但如果我尝试运行 Post.find(:all, :conditions => "deleted='false'")，它不会返回任何内容.就好像 default_scope 优先于一切.

But if I try to run Post.find(:all, :conditions => "deleted='false'"), it won't return anything. It's as if the default_scope takes precedence over everything.

我想要这样，当我执行 Post.find() 时，它不会返回已删除的帖子，但我也希望能够在需要时访问它们.在我的查询或 Rails 模型中需要更改什么?

I want it so that when I do Post.find() it doesn't return deleted posts, but I'd also like to be able to access them if I need to. What needs to be changed in either my query or my Rails model?

谢谢.

推荐答案

with_exclusive_scope 是protected，所以你必须创建一个类方法:

with_exclusive_scope is protected, so you have to create a class method:

def self.include_deleted_in
  Event.with_exclusive_scope { yield }
end

然后在您的控制器调用中

then in your controller call

Post.include_deleted_in { Post.find(:all) }

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