Create another model when registering a Devise user

I am trying to create a profile model for my users registering for a site. Since I have it now, the profile model is created on registration with the correct foreign key. My problem is trying to update the profile model after the user has gone through the confirmation steps.

My users are called "artists".

### /artists/registrations_controller.rb ###

class Artists::RegistrationsController < Devise::RegistrationsController
  # GET /resource/sign_up
  def new
    super
    @profile = @artist.build_artist_profile
  end

  # POST /resource
  def create
    super
    @profile = @artist.create_artist_profile(profile_params)
  end

 private

  def profile_params
    params.permit(:biography, :location, :genre, :members, :facebook_url, :twitter_url, :youtube_url, :itunes_url, :amazon_url)
  end

end

### /artists/profiles_controller ###

class Artists::ProfilesController < ApplicationController

  before_action :authenticate_artist!
  before_action :correct_artist
  before_action :set_artist

  def edit
    @profile = ArtistProfile.find_by(params[:artist_id])
  end

  def update
    @profile = ArtistProfile.find_by(params[:artist_id])
    if @profile.update_attributes(profile_params)
      redirect_to current_artist
    else
      redirect_to root_url
    end
  end

  private

    def set_artist
      @artist = current_artist
    end

    def correct_artist
      @artist = current_artist
      if @artist != Artist.find(params[:id])
        redirect_to artist_path
      end
    end

    def profile_params
      params.require(:artist_profile).permit(:biography, :location, :genre, :members, :facebook_url, :twitter_url, :youtube_url, :itunes_url, :amazon_url)
    end

end

### /artist.rb ###

class Artist < ActiveRecord::Base
  devise :database_authenticatable, :registerable, :recoverable, :rememberable, :trackable, :validatable, :confirmable, :lockable, :timeoutable
  has_one :artist_profile, dependent: :destroy

### /artist_profile.rb ###

class ArtistProfile < ActiveRecord::Base
  belongs_to :artist
  validates :artist_id, presence: true
end

      

        
        
        
      

    

I am putting my own code into the Devise Registrar in the create method. After registration, an ArtistProfile model is created and filled with an empty string that is the prefect. However, if I try to edit / update an individual artist profile, only the first profile profile is updated.

so Artist 1 subscribes and profile 2 is created. Artist 1 updates the 1 location profiles in Buffalo via the edit page. Artist 2 subscribes and profile 2 is created. Artist 2 updates Profile 2 in New York, but Profile 1 is updated, not Profile 2.

Is this the way to create the model on registration, and if so how should I fix the edit / update methods?

Or is there a better way at all?