module PgSearch::ClassMethods

def multisearchable(options = {})
  include PgSearch::Multisearchable
  class_attribute :pg_search_multisearchable_options
  self.pg_search_multisearchable_options = options
end

def pg_search_scope(name, options)
  self.scope(
    name,
    PgSearch::Scope.new(name, self, options).to_proc
  )
end