JSON, respond_with, and nested resources routing error?

Question

Hey Everybody, Thanks in advance for checking out my question.

I've got nested routes like so:

resources :users do
  resources :avatars
end

And upon creating a user, I also create an avatar like so:

def create
  @user = User.create(params[:user])
  @avatar = Avatar.create(:user_id => @user)
  # Send both User and Avatar object back
  respond_with(@user,@avatar)
end

HOWEVER, upon making a server request that would create an inadequate User object (that should result in JSON response {error_key => ...}), rails gives me the following error:

ActionController::RoutingError (No route matches {:user_id=>#<User id: nil, name: nil, phone_number: "mcdkls", email: "fdsa@cmadksl", password_hash: nil, password_salt: nil, auth_token: nil, admin: false>, :action=>"show", :controller=>"avatars", :id=>#<Avatar id: 19, user_id: 1, created_at: "2011-05-20 01:52:22", updated_at: "2011-05-20 01:52:22">}):
app/controllers/users_controller.rb:13:in `create'

Seems like Rails is attempting to display HTML rather than JSON, but if I alter my controller like so:

def create
  @user = User.create(params[:user])
  @avatar = Avatar.create(:user_id => @user)
  # Send both User and Avatar object back
  respond_with(@user)
end

Rails returns for me a beautiful {name => "can't be blank"}. Any thoughts?

Thanks a million, Jared

can you show the code snippet or server output showing what the actual URL being responded to is? — jaydel, May 20 '11 at 11:58
Have the same issue here. Have you understood how to fix it? — Dmitry Polushkin, Sep 27 '11 at 21:35
Duplicate of http://stackoverflow.com/questions/6770439/rails-nested-resource-with-respond-with-destroy-action — Dmitry Polushkin, Sep 27 '11 at 21:39
I know this question is a million years old but do you have a corresponding respond_to? — Joe Susnick, Apr 16 '14 at 22:01

score 0 · Answer 1 · answered May 28 '12 at 04:41

Haven't actually tested this, but maybe the issue is the multiple objects in your call to 'respond_with'? Instead, try putting the objects into an array:

def create
  @user = User.create(params[:user])
  @avatar = Avatar.create(:user_id => @user)
  # Send both User and Avatar object back
  respond_with([@user,@avatar])
end

See the contributor of the respond_with code, Jose Valim's last comment here:

http://archives.ryandaigle.com/articles/2009/8/6/what-s-new-in-edge-rails-cleaner-restful-controllers-w-respond_with

JSON, respond_with, and nested resources routing error?

1 Answers1