Module: LinkedVocabs::Controlled::ClassMethods

Defined in:
lib/linked_vocabs/controlled.rb

Overview

Class methods for adding and using controlled vocabularies

Defined Under Namespace

Classes: QaRDF

Instance Method Summary collapse

Instance Method Details

#list_terms ⇒ Array<RDF::URI>

Note: this does not necessarily list *all the term* allowable by the class. Non-strict RDF::Vocabularies are not included in this method’s output.

Returns:

  • (Array<RDF::URI>) —

    terms allowable by the registered StrictVocabularies



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# File 'lib/linked_vocabs/controlled.rb', line 93

def list_terms
  terms = []
  vocabularies.each do |vocab, config|
    next unless config[:class].respond_to? :properties
    terms += config[:class].properties.select { |s| s.start_with? config[:class].to_s }
  end
  terms
end

#load_vocabularies ⇒ Object

Gets data for all vocabularies used and loads it into the configured repository. After running this new (and reloaded) RdfResource objects of this class will have data from their source web document.



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# File 'lib/linked_vocabs/controlled.rb', line 107

def load_vocabularies
  vocabularies.each do |name, config|
    load_vocab(name)
  end
end

#qa_interface ⇒ Object 



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# File 'lib/linked_vocabs/controlled.rb', line 120

def qa_interface
  @qa_interface ||= QaRDF.new(self)
end

#use_vocabulary(name, opts = {}) ⇒ Object

Raises:



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# File 'lib/linked_vocabs/controlled.rb', line 76

def use_vocabulary(name, opts={})
  raise ControlledVocabularyError, "Vocabulary undefined: #{name.to_s.upcase}" unless LinkedVocabs.vocabularies.include? name
  opts[:class] = name_to_class(name) unless opts.include? :class
  opts.merge! LinkedVocabs.vocabularies[name.to_sym]
  vocabularies[name] = opts
end

#uses_vocab_prefix?(str) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/linked_vocabs/controlled.rb', line 113

def uses_vocab_prefix?(str)
  vocabularies.each do |vocab, config|
    return true if str.start_with? config[:prefix]
  end
  false
end

#vocabularies ⇒ Object 



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# File 'lib/linked_vocabs/controlled.rb', line 83

def vocabularies
  @vocabularies ||= {}.with_indifferent_access
end