Class: Valkyrie::Persistence::Fedora::Persister

Inherits:
Object
  • Object
show all
Defined in:
lib/valkyrie/persistence/fedora/persister.rb,
lib/valkyrie/persistence/fedora/persister/orm_converter.rb,
lib/valkyrie/persistence/fedora/persister/model_converter.rb,
lib/valkyrie/persistence/fedora/persister/resource_factory.rb

Overview

Persister for Fedora MetadataAdapter.

Defined Under Namespace

Classes: ModelConverter, OrmConverter, ResourceFactory

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(adapter:) ⇒ Persister

Returns a new instance of Persister.



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# File 'lib/valkyrie/persistence/fedora/persister.rb', line 9

def initialize(adapter:)
  @adapter = adapter
end

Instance Attribute Details

#adapter ⇒ Object (readonly)

Returns the value of attribute adapter.



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# File 'lib/valkyrie/persistence/fedora/persister.rb', line 7

def adapter
  @adapter
end

Instance Method Details

#delete(resource:) ⇒ Object

Parameters:



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# File 'lib/valkyrie/persistence/fedora/persister.rb', line 41

def delete(resource:)
  if resource.try(:alternate_ids)
    resource.alternate_ids.each do |alternate_identifier|
      adapter.persister.delete(resource: adapter.query_service.find_by(id: alternate_identifier))
    end
  end

  orm = resource_factory.from_resource(resource: resource)
  orm.delete

  resource
end

#initialize_repository ⇒ Object 



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# File 'lib/valkyrie/persistence/fedora/persister.rb', line 62

def initialize_repository
  @initialized ||=
    begin
      resource = ::Ldp::Container::Basic.new(connection, base_path, nil, base_path)
      resource.save if resource.new?
      true
    end
end

#save(resource:) ⇒ Valkyrie::Resource

Returns The resource with an ‘#id` value generated by the persistence backend.

Parameters:

Returns:

  • (Valkyrie::Resource) —

    The resource with an ‘#id` value generated by the persistence backend.



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# File 'lib/valkyrie/persistence/fedora/persister.rb', line 14

def save(resource:)
  initialize_repository
  resource.created_at ||= Time.current
  resource.updated_at ||= Time.current
  ensure_multiple_values!(resource)
  orm = resource_factory.from_resource(resource: resource)
  alternate_resources = find_or_create_alternate_ids(resource)

  if !orm.new? || resource.id
    cleanup_alternate_resources(resource) if alternate_resources
    orm.update { |req| req.headers["Prefer"] = "handling=lenient; received=\"minimal\"" }
  else
    orm.create
  end
  persisted_resource = resource_factory.to_resource(object: orm)

  alternate_resources ? save_reference_to_resource(persisted_resource, alternate_resources) : persisted_resource
end

#save_all(resources:) ⇒ Array<Valkyrie::Resource>

Returns List of resources with an ‘#id` value generated by the persistence backend.

Parameters:

Returns:

  • (Array<Valkyrie::Resource>) —

    List of resources with an ‘#id` value generated by the persistence backend.



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# File 'lib/valkyrie/persistence/fedora/persister.rb', line 34

def save_all(resources:)
  resources.map do |resource|
    save(resource: resource)
  end
end

#wipe! ⇒ Object

Wipes all data in the persistence backend.



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# File 'lib/valkyrie/persistence/fedora/persister.rb', line 55

def wipe!
  connection.delete(base_path)
  connection.delete("#{base_path}/fcr:tombstone")
rescue => error
  Valkyrie.logger.debug("Failed to wipe Fedora for some reason.") unless error.is_a?(::Ldp::NotFound)
end