ActionController::UnknownFormat with respond_to js in Action:Create

Question

my route.rb

  post 'home/create'
  get  'home/create'

my HomeController

   def create
       @review_n = Review.create(review_params)
       if @review_n.errors.empty?
         respond_to do |format|
           format.js { render 'create', locals: {review_name: @review_n.review_n, review_body: @review_n.review_body} }
         end
       else
         render 'index'
       end
    end

my create.js.erb

    $(function() {
      $(".wrap-body").append("<div> tmp </div>");
    });

rails say: ActionController::UnknownFormat in HomeController#create

I want send data in my html.erb without reload page. Help me, please!

UPD:

my html.rb

      <%= form_tag home_create_path, :method => 'post', :remote => true do %>
            <%= text_area_tag  'review[review_body]', nil  %>
            <%= text_field_tag 'review[review_name]', nil %>
            <%= submit_tag 'send' %>
      <% end %>

Can you also change your routes to `post 'home/create' => 'home#create'`? Why do you need `get 'home/create'`. — Sahil, Oct 11 '16 at 07:19
My mistake (( in my HomeController: review_n.review_n to review_n.review_name — deni5n, Oct 11 '16 at 08:51

score 0 · Answer 1 · answered Oct 11 '16 at 08:42

Is your code hitting the render 'index' call that is outside of the respond_to block?

Normally you would put all render calls inside the respond_to block, so it's obvious that all paths of your logic can respond to all expected formats:

def create
  @review_n = Review.create(review_params)

  respond_to do |format|
    if @review_n.errors.empty?
      format.js { render 'create', locals: {review_name: @review_n.review_n, review_body: @review_n.review_body} }
    else
      format.js { render 'index' }
    end
  end
end

This requires having both a create.js.erb and an index.js.erb (for the error case).

Also, as @sahil recommended, your routes.rb should not declare get 'home/create' - this action modifies data, so it isn't safe to make it accessible via GET.

ActionController::UnknownFormat with respond_to js in Action:Create

1 Answers1