Contents

#
# An Item is a  member of a Collection -- i.e., a "work" -- the principal describable resource.
#
# Examples: photograph, book, article, sound recording, video, etc.
#
class Item < Ddr::Models::Base

  include Ddr::Models::HasChildren
  include Ddr::Models::HasStructMetadata

  has_many :children, property: :is_part_of, class_name: 'Component'
  belongs_to :parent, property: :is_member_of_collection, class_name: 'Collection'

  has_attributes :nested_path, datastream: Ddr::Datastreams::ADMIN_METADATA, multiple: false

  alias_method :components, :children
  alias_method :component_ids, :child_ids

  alias_method :parts, :children
  alias_method :part_ids, :child_ids

  alias_method :collection, :parent
  alias_method :collection_id, :parent_id
  alias_method :collection=, :parent=

  def publishable?
    parent.present? && parent.published?
  end

  def children_having_extracted_text
    Ddr::Index::Query.build(self) do |item|
      is_part_of item
      where attached_files_having_content: "extractedText"
      fields :id, :extracted_text
    end
  end

  def all_text
    children_having_extracted_text.docs.map(&:extracted_text).flatten
  end

  def default_structure
    build_default_structure
  end

  private

  def build_default_structure
    document = Ddr::Models::Structure.xml_template
    structure = Ddr::Models::Structure.new(document)
    metshdr = structure.add_metshdr
    structure.add_agent(parent: metshdr, role: Ddr::Models::Structures::Agent::ROLE_CREATOR,
                        name: Ddr::Models::Structures::Agent::NAME_REPOSITORY_DEFAULT)
    structmap = structure.add_structmap(type: Ddr::Models::Structure::TYPE_DEFAULT)
    add_components_to_structure(structure, structmap)
    structure
  end

  def add_components_to_structure(structure, structmap)
    count = 0
    sorted_children.each do |child|
      count += 1
      div = structure.add_div(parent: structmap, order: count)
      structure.add_mptr(parent: div, href: child[Ddr::Index::Fields::PERMANENT_ID])
    end
  end

end

Version data entries

4 entries across 4 versions & 1 rubygems

Version	Path
ddr-models-2.9.2	app/models/item.rb
ddr-models-2.9.1	app/models/item.rb
ddr-models-2.9.0	app/models/item.rb
ddr-models-2.9.0.rc1	app/models/item.rb