Question

I have the following:

Routes:

.
.
.
resources :users do
  resources :relationships
end

new.html.erb:

<section id="main">

  <%= form_for @relationship do |f| %> #This is the line the error is on
    <div class="field">
      <%= f.label :name %>
      <%= f.text_field :name %>
    </div>
   <div class="actions"><%= f.submit %></div>
   <% end %>
</section>

relationships_controller.rb

class RelationshipsController < ApplicationController

  def new
      @id = params[:user_id]
      @rel_user = User.find_by_id(params[:user_id])
      @relationship = Relationship.new
  end

  def create

  end

end

relationship.rb #model

class Relationship < ActiveRecord::Base
    belongs_to :user

    # TYPES = ['Family', 'Friend', 'Spouse']
end

I’ve hunted around on Stack Overflow and can’t seem to find the answer, although, I think it has something to do with nesting my resources. I get the following error:

undefined method 'relationships_path' for #<#<Class:0x007ff45f15ff80>:0x007ff45f15bc78>

Any ideas?

Answer 1

You should understand that all ‘_path’ helpers generated from route.rb file. So in your case route will generate this helper users_relationship_path for show action.

But in your form you’re using just form_for @relationship which is expected to use relationship_path helper.

So you should tell your form helper to use nesting, like this:

<%= form_for [@rel_user, @relationship]  do |f| %>