gistfile1.txt

= form_for @office, :remote => true do |f|
  -if @office.errors.any?
    #error_explanation
      %h2= "#{pluralize(@office.errors.count, "error")} prohibited this office from being saved:"
      %ul
        - @office.errors.full_messages.each do |msg|
          %li= msg

  .field
    = f.label :title
    = f.text_field :title
  .field
    = f.label "state_id"
    = collection_select(:state, :state_id, State.all, :id, :name)
  .field
    = f.label "county_id"
    = collection_select(:county, :county_id, State.all, :id, :name)
  .field
    = f.label "city_id"
    = collection_select(:city, :city_id, City.all, :id, :name)
  .actions
    = f.submit 'Save'
  :javascript
    jQuery(function(){
      $("#state_state_id").change(function() {
        $.post(<%= get_counties_url(:id => state.id) %>, function(data)
          { $.("city_city_id").html(data);
        });
      });
    });

def get_counties
@counties = County.find_by_place_id(params[:id])
render :inline => "= collection_select(:county, :county_id, @counties, :id, :name)", :content_type => "haml"
end

match 'states/:id/get_counties' => 'states#get_counties', :as => :get_counties

http://webcache.googleusercontent.com/search?q=cache:NVTHa0Q5GvEJ:brandonaaron.net/blog/2009/02/25/unobtrusive-destroy-links-in-rails-using-jquery+Rails+Jquery+Post+action&cd=1&hl=en&ct=clnk&gl=us&source=www.google.com

$.post(<%= get_counties_url(:id => state.id) %>, function(data)

$.post(#{ get_counties_url(:id => state.id) }, function(data)

:javascript
jQuery(function(){
  $("#state_state_id").change(function() {
    var state_id = this.val();
    $.post('/state/' + state_id + '/get_counties', function(data)
      { $.("city_city_id").html(data);
    });
  });
});

def get_counties
   logger.info 'id:' + params[:id]
    # @counties = County.find_by_place_id(params[:id])
    # render :inline => "= collection_select(:county, :county_id, @counties, :id, :name)", :content_type => "haml"
end