Rails-在控制器中，如何从其他控制器渲染动作？

Question

I have a page where is displayed information about a respective car (it's a controller cars , action show ). On this page, I render _form from the controller called reviews .

When I send out the form (through AJAX), the review is successfully created, but I am not able from the reviews controller render any action from the cars controller - to be more specific, here's the code:

# reviews_controller
  def create
    @review = Review.new(review_params)
    @review.save
    #respond_with(@review)
    respond_to do |format|
      format.js { render :action => "/cars/car_profile" }
    end
  end

The error I get:

ActionView::MissingTemplate (Missing template reviews/cars/car_profile, application/cars/car_profile with {:locale=>[:en], :formats=>[:js, :html], :variants=>[], :handlers=>[:erb, :builder, :raw, :ruby, :coffee, :haml, :jbuilder]}. Searched in:
  * "/Users/adam/rubydev/claisy/app/views"
  * "/Users/adam/.rvm/gems/ruby-2.0.0-p481/gems/devise-3.4.1/app/views"
):
  app/controllers/reviews_controller.rb:28:in `block (2 levels) in create'
  app/controllers/reviews_controller.rb:27:in `create'

How can I render in controller an action that is located in a different controller?

Thank you in advance.

Answer 1

:action forces rails to search for templates within the current controller view folder.

Missing template reviews/cars/car_profile

You should write this instead

render "cars/car_profile"

See point 2.2.3

What if you want to render a template from an entirely different controller from the one that contains the action code? You can also do that with render, which accepts the full path (relative to app/views) of the template to render.