Question

I am doing migration rails 3.0.5 to 3.2.3 and also changed ruby versions from 1.8.7 to 1.9.3.

I want override the method compute_public_path(ActionView::Helpers::AssetTagHelper).

现在我在迁移应用程序( 3.2.3) 时出错。

alias_method : undefined methodcompute_public_path for module `ActionView::Helpers::AssetTagHelper (NameError)

请就上述问题向我提出宝贵的建议。

我做了个小程序工作很顺利

class String

   alias_method :old_to_s, :to_s

   def to_s
       if  self=="one"
         "coming if "
       else
        "coming else"
       end

   end


end

str = String.new("one")
p str.to_s

p str.old_to_s

Answer 1

从铁路3.1起,该方法在 ActionView:AsssetPaths 类中使用。

http://apidock.com/rails/ActionView/AssetPaths/computute_public_path" rel=“nofollow'>http://apidock.com/rails/ActionView/AsssetPaths/compute_public_path

友情链接