class ActiveFedora::Associations::Builder::Property

def build
  super.tap do |reflection|
    model.index_config[name] = build_index_config(reflection)
  end
end

def build_index_config(reflection)
  ActiveFedora::Indexing::Map::IndexObject.new(reflection.predicate_for_solr) { |index| index.as :symbol }
end

def initialize(model, name, options)
  super
  @name = :"#{name.to_s.singularize}_ids"
end