Sha256: b546e833d1b16029824c4ff705df874b4953492ca54eaaa1d736d0b0fdba0fff
Contents?: true
Size: 1.7 KB
Versions: 7
Compression:
Stored size: 1.7 KB
Contents
# frozen_string_literal: true
module Hyrax
##
# @api public
class VersionListPresenter
include Enumerable
attr_reader :versioning_service
##
# @param service [Hyrax::VersioningService]
def initialize(service)
@versioning_service = service
end
##
# @param [Object] an object representing the File Set
#
# @return [Hyrax::VersionListPresenter] an enumerable of presenters for the
# relevant file versions.
#
# @raise [ArgumentError] if we can't build an enumerable
def self.for(file_set:, file_service: Hyrax.config.file_set_file_service)
original_file = case file_set
when ActiveFedora::Base
file_set.original_file
else
file_service.new(file_set: file_set).primary_file
end
new(Hyrax::VersioningService.new(resource: original_file))
rescue NoMethodError
raise ArgumentError
end
delegate :each, :empty?, to: :wrapped_list
delegate :supports_multiple_versions?, to: :versioning_service
private
def wrapped_list
@wrapped_list ||=
begin
presenters = @versioning_service.versions.map { |v| Hyrax::VersionPresenter.new(v) } # wrap each item in a presenter
if presenters.first&.version&.respond_to?(:created)
presenters.sort! { |a, b| b.version.created <=> a.version.created } if presenters.first&.version.respond_to?(:created) # sort list of versions based on creation date
else
presenters.reverse!
end
presenters.tap { |l| l.first.try(:current!) } # set the first version to the current version
end
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems