Hi
I have another question for how best to do this. Now I have been
following the tutorial at:
http://www.tunaslut.com/learning-ruby-drop-down-lists-in-one-to-many-relationships,
however when I change the view over from
<% @cities.each do |city| %>
<tr>
<td><%=h city.city_name %></td>
<td><%=h city.country_id %></td>
to:
<% @cities.each do |city| %>
<tr>
<td><%=h city.city_name %></td>
<td><%=h city.country.country_name %></td>
The system breaks with the following error
NoMethodError in Cities#index
Showing app/views/cities/index.html.erb where line #12 raised:
undefined method `country_name' for nil:NilClass
Extracted source (around line #12):
when attempting to display data on cities
My questions are:
1. Is there an easier way of doing drop down boxed populated from a
table?
2. is this foreign key assignment working?
3. is this a good way of doing FK asignments? is there a better way.
Please forgive me, I'm old school, more used to the SQL statements....
Thanks again.
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