rails 视图中的类变量? [英] Class variables in rails views?

问题描述

是否可以在视图中引用 ruby​​ 类变量?

Is it possible to refer to ruby class variables in a view?

推荐答案

更常见的方法是将类变量包装在一个辅助方法中:

The more common approach is to wrap the class variable in a helper method:

# in /app/controllers/foo_controller.rb:
class FooController < ApplicationController
  @@bar = 'baz'

  def my_action
  end

  helper_method :bar

  def bar
    @@bar
  end
end

# in /app/views/foo/my_action.html.erb:
It might be a class variable, or it might not, but bar is "<%= bar -%>."

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