如何为局部视图编写操作方法?

不,这应该是

class ControllerNameController < ApplicationController
  def index
   render :partial=>'index'
  end
end

编辑:详细解释我的答案- 当你写一个方法 method_name 而你却不 render ( redirect_to )任何情况下,控制器都会查找页面 method_name.html.erb 默认情况下。

然而,使用 render :partial 如下图所示,操作将改为使用分部。

例如

class ControllerNameController < ApplicationController
  def some_method_name
   render :partial=>'index'  #look for the _index.html.erb
  end
end


class ControllerNameController < ApplicationController
  def some_method_name
   render :action=>'index'  #look for the index.html.erb
  end
end


class ControllerNameController < ApplicationController
  def some_method_name  #look for the "some_method_name.html.erb"

  end
end