Class: RDF::Repository

Inherits:
Object
  • Object
show all
Defined in:
lib/spira/utils.rb

Instance Method Summary collapse

Instance Method Details

#rename!(old_subject, new_subject) ⇒ self

Rename a resource in the Repository to the new given subject.

Parameters:

  • old_subject (RDF::Resource)
  • new_subject (RDF::Resource)

Returns:

  • (self)


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# File 'lib/spira/utils.rb', line 24

def rename!(old_subject, new_subject)
  transaction(mutable: true) do |tx|
    query(subject: old_subject) do |statement|
      tx.insert RDF::Statement.new(new_subject, statement.predicate, statement.object)
      tx.delete(statement)
    end
    query(object: old_subject) do |statement|
      tx.insert RDF::Statement.new(statement.subject, statement.predicate, new_subject)
      tx.delete(statement)
    end
  end
end