Adding nested attributes to devise user model

Question

At first glance it would seem this question has been answered before, but not on my case (most are related to mass assignment issues and/or mongoid.) I have not been able to find an answer even though there are plenty somewhat related questions here.

So basically I'm using the devise gem for user authentication on a ruby on rails application and I want to add a nested address model to the user model. I'm also using simple_form to generate the form views.

I have a user model:

class User < ActiveRecord::Base
  has_and_belongs_to_many :roles
  has_one :address

  accepts_nested_attributes_for :address, :allow_destroy => true
end

This is the address model:

class Address < ActiveRecord::Base
  belongs_to :country
  belongs_to :state
  belongs_to :user

  attr_accessible :street1, :street2, :country_id, :state_id, :city, :postalCode
end

This is the Users controller, which I overrode in order to add a show action to display user profile.

class Users::RegistrationsController < Devise::RegistrationsController
  def new
    resource = build_resource({})
    resource.build_address
    respond_with resource
  end

  # POST /resource
  def create
    resource = build_resource(params[:user])

    if resource.save
      if resource.active_for_authentication?
        set_flash_message :notice, :signed_up if is_navigational_format?
        sign_up(resource_name, resource)
        respond_with resource, :location => after_sign_up_path_for(resource)
      else
        set_flash_message :notice, :"signed_up_but_#{resource.inactive_message}" if is_navigational_format?
        expire_session_data_after_sign_in!
        respond_with resource, :location => after_inactive_sign_up_path_for(resource)
      end
    else
      clean_up_passwords resource
      respond_with resource
    end
  end

  def show
    @user = User.find(params[:id])

    #Add to view count if not viewing own user profile
    if @user != current_user
      @user.views += 1
      @user.save  
    end

    @vehicles = Vehicle.where(:user_id => @user)

    respond_to do |format|
      format.html # show.html.erb
      format.json { render json: @user }
    end
  end
end

This is the view for creating new users:

<%= simple_form_for(resource, :as => resource_name, :url => registration_path(resource_name) ) do |f| %>

              <fieldset>
                    <%= f.input :username, :required => false, :autofocus => true, placeholder: 'Pick a username' %>
                    <%= f.input :email, :required => false, placeholder: 'Your email' %>
                    <%= f.input :password, :required => false, placeholder: 'Create a password' %>
                    <%= f.input :password_confirmation, :required => false, placeholder: 'Confirm your password' %>
                    <%= f.association :roles, :as => :check_boxes, :label => "", :required => false %>
                    <%= f.simple_fields_for :address do |a| %>
                        <%= a.input :street1 %>
                        <%= a.input :street2 %>
                        <%= a.association :country %>
                        <%= a.association :state %>
                        <%= a.input :city %>
                        <%= a.input :postalCode %>
                    <% end %>
                    <%= f.button :submit, 'Sign up for free', :class => 'btn btn-success btn-large' %>
              </fieldset>
<% end %>

So the error upon creating a new user is this: Address user can't be blank

Basically the foreign key user_id is not being set for address.

I was hoping somebody can shed a little light on this issue.

Answer 1

I was able to solve this in my application, but I am using strong parameters. However the solution should still be applicable in your case.

Instead of overriding all of the methods in the RegistrationsController I just overrode build_resource to pass in the correct parameters needed.

def build_resource(params)
  super(resource_params)
end

def resource_params
  params.require(:user).permit(:email, :password, tickets_attributes: [ :description ] )
end

I also have the inverse_of on my User and Ticket models, Like this:

user.rb
  has_many :tickets, inverse_of: :user

ticket.rb
  belongs_to :user, inverse_of :tickets

Answer 2

Forgot to add user_id to address migration. Rails expected it when adding belongs_to :user to the address model.