search_controller_v2.rb

def search
  paginate_per = 30

  group_id = params[:part_group]
  make_id = params[:make]
  model_id = params[:model]
  vehicle_category_id = params[:category]
  vehicle_power = params[:power]
  capacity = params[:capacity]
  q = params[:q]

  @results = Part.search do |search|
    search.query do |query|
      query.boolean do
        must { all } if q.blank?
        must { string q, :default_operator => 'AND' } unless q.blank?
        must { term 'vehicles.vehicle_category_id', vehicle_category_id } unless vehicle_category_id.blank?
        must { term 'vehicles.make_id', make_id } unless make_id.blank?
        must { term 'vehicles.model_id', model_id } unless model_id.blank?
      end
    end

    # filters
    search.filter :term, 'vehicles.power_km' => vehicle_power unless vehicle_power.blank?
    search.filter :term, 'vehicles.engine_capacity' => capacity unless capacity.blank?

    # facets
    search.facet 'power' do
      terms 'vehicles.power_km', :size => 1000, :all_terms => true
    end

    if vehicle_power.blank?
      search.facet 'capacity' do
        terms 'vehicles.engine_capacity', :size => 1000, :all_terms => true
      end
    else
      search.facet 'capacity' do
        terms 'vehicles.engine_capacity', :size => 1000, :facet_filter => {:term => {'vehicles.power_km' => vehicle_power}}
      end
    end

     # pagination
    search.from ((params[:page].present? ? params[:page].to_i : 1).to_i * paginate_per) - paginate_per
    search.size paginate_per
    
    # debugging
    @json_query = search.to_json
    @curl_query = search.to_curl
    #raise search.to_json
    #raise search.to_curl
  end
end