Module: FRBR::Group1

Included in:
Expression, Item, Manifestation, Work
Defined in:
lib/frbr/groups.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#relationships ⇒ Object (readonly)

Returns the value of attribute relationships.



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# File 'lib/frbr/groups.rb', line 3

def relationships
  @relationships
end

Class Method Details

.check_frbr_validity(o, mod_name) ⇒ Object

Raises:

  • (TypeError) 


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# File 'lib/frbr/groups.rb', line 4

def self.check_frbr_validity(o, mod_name)
  raise TypeError, "Group 1 entities cannot also be Group 2 entities" if o.is_a?(FRBR::Group2)
  unless mod_name == "FRBR::Group1"
    entities = [FRBR::Work, FRBR::Expression, FRBR::Manifestation, FRBR::Item, FRBR::Concept, FRBR::Event, FRBR::Object, FRBR::Place]
    entities.delete(Kernel.constant(mod_name))
    entities.each do |e|
      raise TypeError, "#{mod_name} cannot also be a #{e.to_s}" if o.is_a?(e)
    end
  end
  [FRBR::Concept, FRBR::Event, FRBR::Object, FRBR::Place].each do |subject|
    raise TypeError, "#{subject} cannot be a Group 1 entity" if o.is_a?(subject)
  end
end

Instance Method Details



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# File 'lib/frbr/groups.rb', line 18

def related
  return @relationships[this_method.to_sym]
end