gistfile1.txt

Here's the update action:

 def update
    @user = current_user
    @profile = @user.profile
    respond_to do |format|
      if @profile.update_attributes(params[:profile])
        format.html { redirect_to(@profile, :notice => 'Profile was successfully updated.') }
      else
        format.html { render :action => "edit" }
      end
    end
    params[:genre]["name"].split(',').each do |genre_id|
      self.genres << Genre.find(genre_id.to_i)
    end
    self.save!
  end  

Here's the edit action:

  def edit
    @user = current_user
    @profile = @user.profile
  end