innoq/iqvoc

require 'active_support/concern'

module Rankable
  extend ActiveSupport::Concern

  def build_rdf(document, subject, suppress_extra_labels = false)
    super
    if self.class.rankable?
      predicate = "ranked#{rdf_predicate.titleize}"

      subject.Schema.build_predicate(predicate) do |blank_node|
        blank_node.Schema.relationWeight(rank)
        blank_node.Schema.relationTarget(IqRdf.build_uri(target.origin))
      end
    end
  end

  module ClassMethods
    def rankable?
      true
    end

    def partial_name(obj)
      'partials/concept/relation/ranked'
    end

    def edit_partial_name(obj)
      'partials/concept/relation/edit_ranked'
    end
  end
end