Solr with Delegation

gistfile1.rb

require 'delegate'
require 'singleton'

class Solr < DelegateClass(RSolr::Client)
  include Singleton

  def initialize
    super RSolr.connect(url: url)
  end

  def delete_all!
    delete_by_query '*:*'
    commit
  end

  private

  def url
    "http://#{host}:#{port}#{path}"
  end

  def host
    SOLR_CONFIG.fetch('host', 'localhost')
  end

  def port
    SOLR_CONFIG.fetch('port', 8983)
  end

  def path
    SOLR_CONFIG.fetch('path', '/solr')
  end
end