controller

gistfile1.rb

def explore
    @states = State.find(params[:id])
    @towns = @states.towns.paginate(:page => params[:page], :per_page => 9)
    #@towns.each do |t| 
    @towns.each {|t| if t.postcards.empty? @towns.delete(t) end }
       t.postcards.last
    end
end

view

<% @towns.each do |town| %>
		
				<div>
					<%= town.town %> -
			                <%= town.postcards.last.eat %>
				</div> 

		<% end %>