Collection_select with has_one association

Hi, I try to create a select menu with all the city available in my shop form. I've been able to populate the select menu but the city_id isn't stored in the shop table. There must be an error in my view regarding that i'm not sure to understand each parameters of the collection_select.

Shop.rb class Shop < ActiveRecord::Base   attr_accessible :total_visit, :friends_invited

  has_and_belongs_to_many :products   has_and_belongs_to_many :owners   has_many :credits   has_many :visits   belongs_to :city end

City.rb class City < ActiveRecord::Base   attr_accessible :name, :continent

  has_one :shop end

Shop view <% form_for @shop do |f| %>   <p>     <%= collection_select(@shop,:city_id, City.find(:all), :id, :name, options ={:prompt => "-Select a city"}, :class =>"") %>   </p>   <p><%= f.submit "Submit" %></p> <% end %>

Best, Greg

Hello,

In your shop view change collection line to: <%= f.collection_select(:city_id, City.find(:all), :id, :name, options ={:prompt => "-Select a city"}, :class =>"") %>