Module: Ddr::Models::Describable

Extended by:
ActiveSupport::Concern
Included in:
Base
Defined in:
lib/ddr/models/describable.rb

Defined Under Namespace

Modules: ClassMethods

Instance Method Summary collapse

Instance Method Details

#desc_metadata_attributes ⇒ Object 



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# File 'lib/ddr/models/describable.rb', line 50

def desc_metadata_attributes
  defattrs = self.class.defined_attributes
  defattrs.keys.select {|k| defattrs[k].dsid == "descMetadata"}.map(&:to_sym)
end

#desc_metadata_terms(*args) ⇒ Object 



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# File 'lib/ddr/models/describable.rb', line 21

def desc_metadata_terms *args
  return Ddr::Datastreams::DescriptiveMetadataDatastream.term_names if args.empty?
  arg = args.pop
  terms = case arg.to_sym
          when :empty
            desc_metadata_terms.select { |t| desc_metadata_values(t).empty? }
          when :present
            desc_metadata_terms.select { |t| desc_metadata_values(t).present? }
          when :defined_attributes
            desc_metadata_terms & desc_metadata_attributes
          when :required
            desc_metadata_terms(:defined_attributes).select {|t| required? t}
          when :dcterms
            Ddr::Vocab::Vocabulary.term_names(RDF::DC11) +
                  (Ddr::Vocab::Vocabulary.term_names(RDF::DC) - Ddr::Vocab::Vocabulary.term_names(RDF::DC11))
          when :dcterms_elements11
            Ddr::Vocab::Vocabulary.term_names(RDF::DC11)
          when :duke
            Ddr::Vocab::Vocabulary.term_names(Ddr::Vocab::DukeTerms)
          else
            raise ArgumentError, "Invalid argument: #{arg.inspect}"
          end
  if args.empty?
    terms
  else 
    terms | desc_metadata_terms(*args)
  end
end

#desc_metadata_values(term) ⇒ Object 



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# File 'lib/ddr/models/describable.rb', line 55

def desc_metadata_values term
  descMetadata.values term
end

#desc_metadata_vocabs ⇒ Object 



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# File 'lib/ddr/models/describable.rb', line 59

def desc_metadata_vocabs
  descMetadata.class.vocabularies
end

#has_desc_metadata? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ddr/models/describable.rb', line 17

def has_desc_metadata?
  descMetadata.has_content?
end

#set_desc_metadata(term_values_hash) ⇒ Object

Update all descMetadata terms with values in hash Note that term not having key in hash will be set to nil!



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# File 'lib/ddr/models/describable.rb', line 69

def set_desc_metadata term_values_hash
  desc_metadata_terms.each { |t| set_desc_metadata_values(t, term_values_hash[t]) }
end

#set_desc_metadata_values(term, values) ⇒ Object 



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# File 'lib/ddr/models/describable.rb', line 63

def set_desc_metadata_values term, values
  descMetadata.set_values term, values
end