Using Sunspot, Websolr, and Solr on Heroku

cucumber_config.rb

# Solr faking.
# see http://opensoul.org/blog/archives/2010/04/07/cucumber-and-sunspot/
# Note: we need to do more than this if we start doing search tests in cucumber
$original_sunspot_session = Sunspot.session

Before("~@search") do
  Sunspot.session = Sunspot::Rails::StubSessionProxy.new($original_sunspot_session)
end

Gemfile

gem 'sunspot_rails'
gem 'kaminari'
gem 'sunspot_with_kaminari'

results.html.erb

<h3 class="summary"><%= t('.your-search-header'), start: @start, end: @end, total: pluralize(@total, 'result') %></h3>

<% @results.each do |p| %>
<div class="result"><!-- ... --></div>
<% end %>

<%= paginate @search, window: 1 %>

rspec_solr.rb

RSpec.configure do |c|
  c.before :suite do
    module Sunspot
      def self.stub_session
        @sub_session ||= Sunspot::Rails::StubSessionProxy.new self.session
      end
    end

  end

  c.before :each do
    Sunspot.session = Sunspot.stub_session
    Sunspot.session = Sunspot.session.original_session if example.metadata[:solr]

    Sunspot.remove_all!
  end
end

run.sh

bundle exec rake sunspot:solr:start
bundle exec rake sunspot:solr:stop

search_controller.rb

class SearchController < ApplicationController
	def search
		page_size = 10

		@search = Profile.solr_search do
			keywords params[:q] do
				boost_fields name: 10.0, user: 4.0
			end

			with :include_search, true
			paginate page: params[:page], per_page: page_size
		end

		@results = @search.results

		@total = @search.total
		@paging = @total > page_size
		@start = (@search.current_page - 1) * page_size + 1
		@end = [@start + page_size - 1, @total].min

		render (if @results.empty? then :no_results else :results end)
	end

end

search_spec.rb

describe 'Search' do
  def commit
    Sunspot.commit
  end

  def search(q)
    visit "/search?q=#{q}"
  end

  it 'does something interesting', :solr do
    Something.create!
    commit
    search 'foobar'
end

solr.yml

# Note: ENV['SOLR_URL'] and ENV['WEBSOLR_URL'] override any values here
# The defaults are same as what's below  so you only need to override as desired.
# Removed production since that should never be used in heroku.
# See Sunspot::Rails::Configuration.solr_url

development:
  solr:
    hostname: localhost
    port: 8982
    log_level: INFO

test:
  solr:
    hostname: localhost
    port: 8981
    log_level: WARNING

Hi where can I find the article associated with this code ?