Controller path for nested resource - undefined method `<controller>_path'

Question

I'm having trouble displaying my form at /users/2/friends/new. I'm receiving

undefined method `friends_path' for #<#<Class:0x21f0c14>:0x21ef364>

Here is the beginning of the form

<% form_for(@friend) do |f| %>

And the friends controller

def new
     @user = User.find(params[:user_id])
     @friend = @user.friends.build
end

This is the route

resources :users do
       resources :friends
end

And the relevant path from "rake routes"

users/:user_id/friends/new(.:format)      {:controller=>"friends", :action=>"new"}

Any help or insight is greatly appreciated. This is my first rails 3 app.

clemensp · Accepted Answer · 2010-12-24 23:53:15Z

47

Try:

user_friends_path(@user)

It's because it's a nested resource: http://guides.rubyonrails.org/routing.html#creating-paths-and-urls-from-objects

Update: As for the form, you can do:

<%= form_for [@user, @friend] do |f| %>

edited Dec 24, 2010 at 23:53

answered Dec 24, 2010 at 19:41

clemensp

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4 Comments

owilde1900 Over a year ago

Thanks for the reply. Maybe I'm misunderstanding about where to put the path.. When I do form_for user_friend_path(@friend) it throws up an even stranger error. All I'm trying to do is display a form to add "friends" and associate them as belonging to the user.

clemensp Over a year ago

Ah, I see what you're trying to do. You have to do form_for [@user, @friend]

owilde1900 Over a year ago

Thanks so much for your input. That did it! Really appreciate the help as I'm just beginning. Happy Holidays to you sir.

Mick Over a year ago

I've been bashing my brains out trying to get this working. Many, many thanks.

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