Class: Collection::Member::SKOS::Base

Inherits:
Base
  • Object
show all
Defined in:
app/models/collection/member/skos/base.rb

Overview

Copyright 2012 Hola, S.L.

Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an “AS IS” BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Class Method Summary collapse

Class Method Details

.build_from_rdf(rdf_subject, rdf_predicate, rdf_object) ⇒ Object 



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# File 'app/models/collection/member/skos/base.rb', line 21

def self.build_from_rdf(rdf_subject, rdf_predicate, rdf_object)
  raise "#{self.name}#build_from_rdf: Subject (#{rdf_subject}) must be a Collection."          unless rdf_subject.is_a?(Collection::Base)
  raise "#{self.name}#build_from_rdf: Object (#{rdf_object}) must be a Collection or Concept." unless rdf_object.is_a?(Collection::Base) or rdf_object.is_a?(Concept::Base)

  member_instance = rdf_subject.members.detect{ |rel| rel.target == rdf_object }
  if member_instance.nil?
    predicate_class = RDFAPI::PREDICATE_DICTIONARY[rdf_predicate] || self
    member_instance = predicate_class.new(target: rdf_object)
    rdf_subject.members << member_instance
  end

  if rdf_object.collections.select{ |coll| coll.id == rdf_subject.id }.empty?
    rdf_object.collections << rdf_subject
  end
  member_instance
end