Module: ActiveFedora::Versionable

Extended by:
ActiveSupport::Concern
Included in:
Base, File
Defined in:
lib/active_fedora/versionable.rb

Instance Method Summary collapse

Instance Method Details

#create_version ⇒ Object 



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# File 'lib/active_fedora/versionable.rb', line 31

def create_version
  resp = ActiveFedora.fedora.connection.post(versions_uri, nil, slug: version_name)
  @versions = nil
  resp.success?
end

#has_versions? ⇒ Boolean

Queries Fedora to figure out if there are versions for the resource.

Returns:

  • (Boolean) 


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# File 'lib/active_fedora/versionable.rb', line 38

def has_versions?
  ActiveFedora.fedora.connection.head(versions_uri)
  true
rescue Ldp::NotFound
  false
end

#model_type ⇒ Object 



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# File 'lib/active_fedora/versionable.rb', line 9

def model_type
  if respond_to?(:metadata)
    metadata.ldp_source.graph.query({ predicate: ::RDF.type }).objects
  else
    resource.query({ subject: resource.rdf_subject, predicate: ::RDF.type }).objects
  end
end

#restore_version(label) ⇒ Object 



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# File 'lib/active_fedora/versionable.rb', line 45

def restore_version(label)
  resp = ActiveFedora.fedora.connection.patch(versions.with_label(label).uri, nil)
  @versions = nil
  reload
  refresh_attributes if respond_to?("refresh_attributes")
  resp.success?
end

#versions(reload = false) ⇒ Object

Returns an array of ActiveFedora::VersionsGraph::ResourceVersion objects. Excludes auto-snapshot versions from Fedora.



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# File 'lib/active_fedora/versionable.rb', line 19

def versions(reload = false)
  response = versions_request

  return ActiveFedora::VersionsGraph.new unless response

  if reload
    @versions = ActiveFedora::VersionsGraph.new << versions_request.reader
  else
    @versions ||= ActiveFedora::VersionsGraph.new << versions_request.reader
  end
end