Ruby on rails trouble with nested form - ruby-on-rails

Question

I have a clan.rb and clan_options.rb
clan.rb
class Clan < ActiveRecord::Base
has_one :options, :class_name => "ClanOptions", :foreign_key => "clan_id", dependent: :destroy
accepts_nested_attributes_for :options
end
clan_options.rb
class ClanOptions < ActiveRecord::Base
belongs_to :clan
end
To create an edit form for clan.rb and clan_options.rb I use the following in edit.html.erb:
<%= form_for #clan, :html => {:class => 'form-horizontal'} do |clan| %>
<fieldset>
<!-- Form stuff -->
<%= clan.fields_for :options do |o| %>
<!-- o.text_field -->
<% end %>
</fieldset>
<% end %>
I can update the fields of clan.rb but when I try to edit the value backgroundurl it won't save it. Backgroundurl is one of the clan_options.rb
clans_controller.rb
class ClansController < ApplicationController
before_filter :check_login, :only => [:new, :edit]
before_filter :check_bound, :only => [:new, :edit]
before_filter :check_clan, :only => :new
def update
#clan = Clan.find(params[:id])
if #clan.update_attributes(clan_update_params)
flash[:status] = TRUE
flash[:alert] = "Successfully updated your clan."
redirect_to clan_path(params[:id])
else
flash[:status] = FALSE
flash[:alert] = #clan.errors.full_messages
redirect_to edit_clan_path(#clan.id)
end
end
def edit
clan = Clan.where(id: params[:id])
if !clan.blank?
#clan = Clan.find(params[:id])
user = User.where(id: session[:user_id])
if !user.blank?
#De gebruiker is ingelogt en zit in de clan
#user = User.find(session[:user_id])
if #clan.id != #user.clan.id
flash[:status] = FALSE
flash[:alert] = 'That was not your clan, you may not edit theirs.'
redirect_to clans_path
elsif #user.clanmember.group.rank != 10
flash[:status] = FALSE
flash[:alert] = "You must be the leader to edit the clan."
redirect_to clan_path(#clan.id)
end
end
else
flash[:status] = FALSE
flash[:alert] = 'that clan doesn\'t exist or has been removed.'
redirect_to clans_path
end
end
def clan_params
params.require(:clan).permit(:name, :prefix, :description, :user_id)
end
def clan_update_params
params.require(:clan).permit(:name, :prefix, :description, :user_id, options: [:id, :clan_id, :backgroundurl])
end
end

Answer 1

I've fixed it by changing
def clan_update_params
params.require(:clan).permit(:name, :prefix, :description, :user_id, options: [:id, :clan_id, :backgroundurl])
end
to
def clan_update_params
params.require(:clan).permit(:name, :prefix, :description, :user_id, options_attributes: [:backgroundurl])
end