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# This module points the FileSet to the location of the technical metdata.
# By default, the file holding the metadata is :original_file and the terms
# are listed under ::characterization_terms.
# Implementations may define their own terms or use a different source file, but
# any terms must be set on the ::characterization_proxy by the Hydra::Works::CharacterizationService
#
# class MyFileSet
# include CurationConcerns::FileSetBehavior
# end
#
# MyFileSet.characterization_proxy = :master_file
# MyFileSet.characterization_terms = [:term1, :term2, :term3]
module CurationConcerns
module FileSet
module Characterization
extend ActiveSupport::Concern
included do
class_attribute :characterization_terms, :characterization_proxy
self.characterization_terms = [
:format_label, :file_size, :height, :width, :filename, :well_formed,
:page_count, :file_title, :last_modified, :original_checksum, :mime_type
]
self.characterization_proxy = :original_file
delegate(*characterization_terms, to: :characterization_proxy)
def characterization_proxy
send(self.class.characterization_proxy) || NullCharacterizationProxy.new
end
def characterization_proxy?
!characterization_proxy.is_a?(NullCharacterizationProxy)
end
end
class NullCharacterizationProxy
def method_missing(*_args)
[]
end
def mime_type
end
end
end
end
end
Version data entries
18 entries across 18 versions & 1 rubygems