Best 2012 (a)

site_search.rb

class SiteSearch
  extend LocalTire::ActiveModel::Extensions
  per_page 10
  search_indexes :profiles, :groups, :blog_posts, :questions, :chats

  
  def self.search(params)
    current_page = get_page(params[:page])
    query_string = params[:query] if params.member?(:query)
    search_indexes params[:scope] if params.member?(:scope) && params[:scope] != 'all'
    
    results = perform_query(query_string, current_page).results
    # SSJ This is what I like
    results.extend Tire::Results::Pagination
    rescue Errno::ECONNREFUSED => e
      Rails.logger.error "[Tire::Search::Search] Unable to connect to ElasticSearch database!"
      puts e
      generate_mock_results
    rescue Exception => e
      Rails.logger.error e
      puts e
      generate_mock_results
  end

private
  
  def self.perform_query(query_string, current_page)
    Tire.search get_search_indexes do
      if query_string
        query do
          string query_string, 
          :default_operator => "AND", 
          :fields => [:screen_name, :search_content, :description, :title, :tags, :comments, :question, :answers, :topics, :posts]
        end
      end
      # SSJ Use filters for requirments that don't affect the relevance score
      filter :bool, :must_not => { :term => {:private, true}}
      filter :bool, :must_not => { :term => {:company, true}}
      from (current_page-1) * (SiteSearch::get_per_page)
      size SiteSearch::get_per_page
    end
  end
end 

What I like about this code is that it demonstrates a transition in my thinking from brute force, to explore first. Tire has two search paradigms, search a single ActiveRecord model or do a generic (non-rails) search. I wanted to create a multiple index search, but still provide some of the functionality Tire provides to ActiveModel searches. Looking in the gem source, I was able to locate to modules that had the functionality I was looking for and all I needed to do was extend those functions onto the full index result set.