Rails: Render view from outside controller

Question

I\'m trying to create an HTML string using a view. I would like to render this from a class that is not a controller. How can I use the rails rendering engine outside a co

Answer 1

Calling directly render method on ApplicationController may raise error

 Helper Devise: could not find the `Warden::Proxy` instance on request environment

Instead we can use ApplicationController.renderer.render like

 rendered_string = ApplicationController.renderer.render(
     partial: 'users/show',
     locals: { user: user }
)