Module: LinkedRails::Helpers::DeltaHelper

Included in:
Controller::Delta
Defined in:
lib/linked_rails/helpers/delta_helper.rb

Instance Method Summary collapse

Instance Method Details

#delta_iri(delta) ⇒ Object 



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# File 'lib/linked_rails/helpers/delta_helper.rb', line 6

def delta_iri(delta)
  %i[remove replace invalidate].include?(delta) ? Vocab.ontola[delta] : Vocab.ld[delta]
end

#invalidate_collection_delta(collection) ⇒ Object 



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# File 'lib/linked_rails/helpers/delta_helper.rb', line 10

def invalidate_collection_delta(collection)
  [Vocab.sp[:Variable], Vocab.ontola[:baseCollection], collection.iri, delta_iri(:invalidate)]
end

#invalidate_parent_collections_delta(resource) ⇒ Object 



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# File 'lib/linked_rails/helpers/delta_helper.rb', line 14

def invalidate_parent_collections_delta(resource)
  context = user_context if respond_to?(:user_context, true)

  resource&.parent_collections(context)&.map(&method(:invalidate_collection_delta)) || []
end

#invalidate_resource_delta(resource) ⇒ Object 



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# File 'lib/linked_rails/helpers/delta_helper.rb', line 20

def invalidate_resource_delta(resource)
  iri = resource.is_a?(RDF::Resource) ? resource : resource.iri

  [iri, Vocab.sp[:Variable], Vocab.sp[:Variable], delta_iri(:invalidate)]
end

#resource_added_delta(resource) ⇒ Object 



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# File 'lib/linked_rails/helpers/delta_helper.rb', line 26

def resource_added_delta(resource)
  invalidate_parent_collections_delta(resource) + singular_added_delta(resource)
end

#resource_removed_delta(resource) ⇒ Object 



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# File 'lib/linked_rails/helpers/delta_helper.rb', line 30

def resource_removed_delta(resource)
  invalidate_parent_collections_delta(resource) + singular_removed_delta(resource)
end

#same_as_statement(from, to) ⇒ Object 



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# File 'lib/linked_rails/helpers/delta_helper.rb', line 34

def same_as_statement(from, to)
  [
    from,
    Vocab.owl.sameAs,
    to
  ]
end

#singular_added_delta(resource) ⇒ Object 



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# File 'lib/linked_rails/helpers/delta_helper.rb', line 42

def singular_added_delta(resource)
  return [] unless resource.try(:singular_resource?)

  [same_as_statement(resource.singular_iri, resource.iri)]
end

#singular_removed_delta(resource) ⇒ Object 



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# File 'lib/linked_rails/helpers/delta_helper.rb', line 48

def singular_removed_delta(resource)
  return [] unless resource.try(:singular_resource?)

  [invalidate_resource_delta(resource.singular_iri)]
end