Conditional statements in association model in Rails

Using Rails 2.3.8. I have the following in my view:

<% if !@shop.city_shops.blank? %>
  <% @shop.city_shops.each do |city_shop|  %>
    <% if !city_shop.notes.blank? %>
      <% city_shop.notes %>
    <% else %>
      <p>No notes.</p>
    <% end %>
  <% end %>
<% else %>
 <p>No notes.</p>
<% end %>

city_shops has a database column called notes; bel开发者_开发技巧ongs_to shop. shop has_many city_shops.

In article A, I add a shop with ID 50 into a new row city_shop, and add notes. In article B, I add a shop with ID 50 into a new row city_shop, and no notes. In article C, I add a shop with ID 51 into a new row city_shop, and no notes.

Result of city_shop database:

ID | shop_id | notes
1  |   50    | Test
2  |   50    | 
3  |   51    | 

In view.html.erb of shop 50, I want to show the notes Test from city_shop ID 1.

In view.html.erb of shop 51, I want to show the No notes from city_shop ID 3.

Thank you.

<% no_notes = false %>   

<% @shop.city_shops.each do |city_shop|  %>
 <% unless city_shop.notes.blank? %>
   <% city_shop.notes %>
 <% else %>
   <% no_notes = true %>
 <% end %> 
<% end %>

<% if no_notes %>
  <p>No notes.</p>
<% end %>