Elastic Search Query

elastic_search_query.rb

class << self
  def query(params)
    listings = self.active_record_search(params) # filter by other parameters first

    # return right there if search is blank
    return listings.page(params[:page]) if params[:search].blank?

    # otherwise pass already filtered set to elastic search for further filtering
    listing_ids = listings.pluck(:id)
    self.elastic_search(params, listing_ids)
  end

  def active_record_search(params)
    # ...some code
  end

  def elastic_search(params, listing_ids)
    elastic_query = {
      fields: [:title, :description, :tagged, :artist_name],
      # include a where clause so I'm only searching records returned by the other filters
      where: { id: listings_ids },
      order: { _score: :desc },
      page: params[:page],
      per_page: 15
    }

    self.search(params[:search], elastic_query)
  end
end