ucsdlib/damspas

require 'active_support/concern'

module Dams
  module MadsTopic
    extend ActiveSupport::Concern
    include Dams::MadsSimpleType
    included do
      rdf_type MADS.Topic
      map_predicates do |map|
        map.elem_list(:in => MADS, :to => 'elementList', :class_name=>'MadsTopicElementList')
      end

      def elementList
        elem_list.first || elem_list.build
      end      
      accepts_nested_attributes_for :topicElement, :scheme
      def serialize
        check_type( graph, rdf_subject, MADS.Topic )
        super
      end
      delegate :topicElement_attributes=, to: :elementList
      alias_method :topicElement, :elementList
      def topicElement_with_update_name= (attributes)
        self.topicElement_without_update_name= attributes
        if elementList && elementList.first && elementList.first.elementValue.present?
          self.name = elementList.first.elementValue.to_s
        end
      end
      alias_method :topicElement_without_update_name=, :topicElement_attributes=
      alias_method :topicElement_attributes=, :topicElement_with_update_name=
      def to_solr (solr_doc={})
        Solrizer.insert_field(solr_doc, 'topic', name)
        if elementList.first
          Solrizer.insert_field(solr_doc, "topic_element", elementList.first.elementValue.to_s)
        end
        # hack to make sure something is indexed for rights metadata
        ['edit_access_group_ssim','read_access_group_ssim','discover_access_group_ssim'].each {|f|
          solr_doc[f] = 'dams-curator' unless solr_doc[f]
        }
        solr_base solr_doc
      end
    end
    class MadsTopicElementList
      include ActiveFedora::RdfList
      map_predicates do |map|
        map.topicElement(:in=> MADS, :to =>"TopicElement", :class_name => "MadsTopicElement")
      end
      accepts_nested_attributes_for :topicElement
    end
    class MadsTopicElement
      include Dams::MadsElement
      rdf_type MADS.TopicElement
    end
  end
end