How use Aplication.renderer.render from rails 5 with devise

Question

I want to make my app in real time

This is my error

ActionView::Template::Error (Devise could not find the Warden::Proxy instance on your request environment. Make sure that your application is loading Devise and Warden as expected and that the Warden::Manager middleware is present in your middleware stack. If you are seeing this on one of your tests, ensure that your tests are either executing the Rails middleware stack or that your tests are using the Devise::Test::ControllerHelpers module to inject the request.env['warden'] object for you.)
1: -if user_signed_in?
2: .ui.popup.computer{id:"post#{post.id}user#{post.user.id}", style:"padding:0px"}
3: .ui.card
4: .image

I don't know what to do

Help me please.

Answer 1

I think I found a solution for my case.

Define renderer_with_signed_in_user class method in ApplicationController.

class ApplicationController < ActionController::Base
  ...
  def self.renderer_with_signed_in_user(user)
    ActionController::Renderer::RACK_KEY_TRANSLATION['warden'] ||= 'warden'
    proxy = Warden::Proxy.new({}, Warden::Manager.new({})).tap { |i|
      i.set_user(user, scope: :user, store: false, run_callbacks: false)
    }
    renderer.new('warden' => proxy)
  end
  ...
end

And then you can render from other parts of Rails app, like this:

renderer = ApplicationController.renderer_with_signed_in_user(user)
renderer.render template: 'notifications/show', layout: false, locals: { foo: 'bar' }

Credit to Stefan Wienert for his article