Rails 4-如何基于当前路径显示同一控制器动作的不同视图？

Question

I have a standard posts controller with an index action.

At the moment, I am routing this as the home page / , as well as the posts page /posts

class PostsController < ApplicationController

    def index
    # Logic and finds here
    end

end

And in my routes.rb file:

root to: "posts#index"
get "/posts" => "posts#index"

However, in my view, I would like to lay things out slightly differently depending on whether the route is /posts or just / . Is this possible? And if so, what is the best practice for this?

I was thinking about creating another action in the posts controller, but then I would be replicating the logic, already defined in my index action - which I want to avoid.

I basically want to use the same content, but show a different view.

Any advice or help is greatly appreciated.

Thanks, Michael.

Answer 1

One solution apart from using different controllers/actions would be to pass an additional parameter in from your router:

root to: "posts#index", source: 'home'
get "/posts" => "posts#index"

Then in your controller you can do this:

class PostsController < ApplicationController
  def index
    # Logic
    render(params[:source] || 'index')
  end
end

It will render the home template when the user entered through the root path, and the index template otherwise.

Answer 2

For the current scenario you can use this

In your action use

request.fullpath

This will catch the current uri, you can use this to implement things or in rails 4 you can also use

request.original_url

to fetch the URL, this question explains the use in details