class GalterIrExporter::Export::VersionGraphConverter
Convert a graph of versions from a GenericFile into a list of POROs so that the metadata
(including pointers to the version content) can be exported in json format using to_json
@attr_reader [Array<VersionConverter] versions list of VersionConverters extracted from the graph
Attributes
versions[R]
Public Class Methods
new(version_graph)
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Create an instance of a GenericFile version graph containing all the metadata for each version
@param [ActiveFedora::VersionsGraph] version_graph the graph of versions associated with one GenericFile (gf.content.versions)
# File lib/galter_ir_exporter/export/version_graph_converter.rb, line 13 def initialize(version_graph) @versions = [] parse(version_graph) end
Private Instance Methods
find_uris(graph)
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# File lib/galter_ir_exporter/export/version_graph_converter.rb, line 26 def find_uris(graph) uris = [] graph.query(predicate: RDF::Vocab::Fcrepo4.hasVersion).each do |triple| uris << triple.object.to_s end uris end
parse(graph)
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# File lib/galter_ir_exporter/export/version_graph_converter.rb, line 20 def parse(graph) find_uris(graph).each do |uri| versions << VersionConverter.new(uri, graph) end end