画像の説明を検索できるように・・・・

search_service.rb

class SearchService < BaseService
  attr_accessor :query, :account, :limit, :resolve

  def call(query, limit, resolve = false, account = nil)
    @query   = query.strip
    @account = account
    @limit   = limit
    @resolve = resolve

    default_results.tap do |results|
      if url_query?
        results.merge!(url_resource_results) unless url_resource.nil?
      elsif query.present?
        results[:accounts] = perform_accounts_search! if account_searchable?
        results[:statuses] = perform_statuses_search!
        results[:statuses].concat(perform_mediadescription_search!) #ここ
        results[:statuses].uniq! #ここ
        results[:hashtags] = perform_hashtags_search! if hashtag_searchable?
      end
    end
  end

  private

  def perform_accounts_search!
    AccountSearchService.new.call(query, limit, account, resolve: resolve)
  end

　#ここ
  def perform_mediadescription_search!

      mediades = Status.joins(:media_attachments)
      .select('statuses.*')
      .where('local = True')
      .limit(limit)

    query.split(/[\s　]+/).each do |keyword|
      if (matches = keyword.match(/^-(.*)/))
        keyword = matches[1]

        mediades = mediades.where('description !~ ?', keyword)
      else
        mediades = mediades.where('description ~ ?', keyword)
      end
    end
    mediades.reject { |status| StatusFilter.new(status, account).filtered? }

  rescue Faraday::ConnectionFailed
    []
  end