Question

I am using Rails 2.3.8. I have this table Shops with the following data:

Shops Database Table

ID | country_id | notes
1  | 10         | test
2  | 10         | testing
3  | 12         | tested

In shop.rb I put belongs_to :country.

In my Country’s view.html.erb, I want to be able to show the related notes from Shops table. Such in this case, in the page http://localhost:3000/countries/10, notes from ID1 and ID2 of Shops should appear in this page.

Can someone enlighten me how to achieve this? Thank you very much.

Answer 1

You also need to add in country.rb has_many :shops. So now, from the html you can do

<% country.shops.each do |shop| %>
  <%= shop.notes %>
<% end %>

by adding the has_many you make the relationship bidirectional, and you can navigate to from shop -> country or from country -> shops.