rails 4 nested resource routing error

Question

I have a routes file (Rails 4.0.4 App):

resources :products do
  resources :variants, except: :index
end

rake routes gives:

       product_variants POST   /products/:product_id/variants(.:format)             variants#create
    new_product_variant GET    /products/:product_id/variants/new(.:format)         variants#new
   edit_product_variant GET    /products/:product_id/variants/:id/edit(.:format)    variants#edit
        product_variant GET    /products/:product_id/variants/:id(.:format)         variants#show
                        PATCH  /products/:product_id/variants/:id(.:format)         variants#update
                        PUT    /products/:product_id/variants/:id(.:format)         variants#update
                        DELETE /products/:product_id/variants/:id(.:format)         variants#destroy

So as proposed I'm using

<%= form_for [@product, @variant] do |f| %>

but this generates (note the URL):

<form accept-charset="UTF-8" action="/variants/1" class="edit_variant" id="edit_variant_1" method="post">

And I get (of course) the routing error saying no route matches with PATCH /variants/1

Same strange behaviour when I redirect to in an Api Controller living namespaced under api/:

redirect_to [:api, @product, @variant]

Got me: no route matches with /api/variants/1

So:

I checked all routes
I know how to nest resources and namespace them
I thought I know how to generate the URL's ;-)

Somehow the @products is ignored when generating the urls

Has anyone a clue where to look any further?

You can confirm that the @product variable is not nil.

Magnuss
– Magnuss

2014-04-15 16:49:57 +00:00
Commented Apr 15, 2014 at 16:49 — Magnuss
– Magnuss, Commented Apr 15, 2014 at 16:49

GoBlue1616 · Accepted Answer · 2014-04-15 18:15:00Z

1

Take a look at your variants controller. Are you instantiating @product?

It may be helpful to post the code for controller too.

Hope this helps!

Alex

answered Apr 15, 2014 at 18:15

GoBlue1616

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Comments

Julian Kaffke · Accepted Answer · 2014-04-16 08:29:33Z

0

Okay the problem really lies in the different controllers. I somehow instantiated @products in a before action, but obviously did it wrong.

Seems to be a leck of energy drink problem. thanks for pointing me to the right solution!

answered Apr 16, 2014 at 8:29

Julian Kaffke

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