Class: Concept::SKOS::Scheme

Inherits:
Base
  • Object
show all
Defined in:
app/models/concept/skos/scheme.rb

Overview

Copyright 2011-2013 innoQ Deutschland GmbH

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

Instance Method Summary collapse

Class Method Details

.build_from_rdf(rdf_subject, rdf_predicate, rdf_object) ⇒ Object 



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# File 'app/models/concept/skos/scheme.rb', line 34

def self.build_from_rdf(rdf_subject, rdf_predicate, rdf_object)
  rdf_subject.update_attribute :top_term, true
end

.create(attributes = nil, &block) ⇒ Object

Raises:

  • (TypeError) 


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# File 'app/models/concept/skos/scheme.rb', line 42

def self.create(attributes = nil, &block)
  raise TypeError, 'Singleton' if first
  super
end

.create!(attributes = nil, &block) ⇒ Object

Raises:

  • (TypeError) 


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# File 'app/models/concept/skos/scheme.rb', line 47

def self.create!(attributes = nil, &block)
  raise TypeError, 'Singleton' if first
  super
end

.instance ⇒ Object 



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# File 'app/models/concept/skos/scheme.rb', line 38

def self.instance
  first_or_create!(origin: 'scheme', published_at: Time.now)
end

.rdf_class ⇒ Object 



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# File 'app/models/concept/skos/scheme.rb', line 22

def self.rdf_class
  'ConceptScheme'
end

.rdf_namespace ⇒ Object 



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# File 'app/models/concept/skos/scheme.rb', line 30

def self.rdf_namespace
  'skos'
end

.rdf_predicate ⇒ Object 



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# File 'app/models/concept/skos/scheme.rb', line 26

def self.rdf_predicate
  'topConceptOf'
end

Instance Method Details

#build_rdf_subject(&block) ⇒ Object 



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# File 'app/models/concept/skos/scheme.rb', line 52

def build_rdf_subject(&block)
  ns = IqRdf::Namespace.find_namespace_class(self.class.rdf_namespace.to_sym)
  raise "Namespace '#{rdf_namespace}' is not defined in IqRdf document." unless ns
  IqRdf.build_uri(origin, ns.build_uri(self.class.rdf_class), &block)
end

#inline_top_concept_origins ⇒ Object 



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# File 'app/models/concept/skos/scheme.rb', line 67

def inline_top_concept_origins
  @inline_top_concept_origins || top_concepts.map { |c| c.origin }.uniq
end

#inline_top_concept_origins=(origins) ⇒ Object 



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# File 'app/models/concept/skos/scheme.rb', line 62

def inline_top_concept_origins=(origins)
  @inline_top_concept_origins = origins.to_s.
    split(InlineDataHelper::SPLITTER).map(&:strip)
end

#inline_top_concepts ⇒ Object 



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# File 'app/models/concept/skos/scheme.rb', line 71

def inline_top_concepts
  if @inline_top_concept_origins
    Iqvoc::Concept.base_class.editor_selectable.where(origin: @inline_top_concept_origins)
  else
    top_concepts.select { |c| c.editor_selectable? }
  end
end

#mono_hierarchy? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/models/concept/skos/scheme.rb', line 88

def mono_hierarchy?
  Iqvoc::Concept.broader_relation_class.new.kind_of?(
    Concept::Relation::SKOS::Broader::Mono
  )
end

#poly_hierarchy? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'app/models/concept/skos/scheme.rb', line 94

def poly_hierarchy?
  !mono_hierarchy?
end

#redeclare_top_concepts ⇒ Object 



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# File 'app/models/concept/skos/scheme.rb', line 79

def redeclare_top_concepts
  return if inline_top_concept_origins.nil? # There is nothing to do

  Iqvoc::Concept.base_class.transaction do
    Iqvoc::Concept.base_class.tops.update_all top_term: false
    Iqvoc::Concept.base_class.where(origin: @inline_top_concept_origins).update_all(top_term: true)
  end
end

#top_concepts ⇒ Object 



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# File 'app/models/concept/skos/scheme.rb', line 58

def top_concepts
  Iqvoc::Concept.base_class.tops
end