Module: ComponentTransfer

Defined in:
backend/app/lib/component_transfer.rb

Defined Under Namespace

Modules: ResponseHelpers

Class Method Summary collapse

Class Method Details

.deep_transfer(new_resource_id, obj) ⇒ Object 



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# File 'backend/app/lib/component_transfer.rb', line 56

def self.deep_transfer(new_resource_id, obj)
  ArchivalObject.this_repo.filter(:root_record_id => obj.root_record_id, :parent_id => obj.id).each do |child|
    deep_transfer(new_resource_id, child)
    child.root_record_id = new_resource_id
    child.save
  end
end

.included(base) ⇒ Object 



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# File 'backend/app/lib/component_transfer.rb', line 6

def self.included(base)
  base.extend(JSONModel)
end

.transfer(target_resource_uri, archival_object_uri) ⇒ Object 



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# File 'backend/app/lib/component_transfer.rb', line 21

def self.transfer(target_resource_uri, archival_object_uri)
  id = JSONModel(:archival_object).id_for(archival_object_uri)

  obj = ArchivalObject[:id => id]

  if obj.nil?
    raise NotFoundException.new("That which does not exist cannot be moved.")
  end

  # Move the children first
  deep_transfer(JSONModel::JSONModel(:resource).id_for(target_resource_uri), obj)

  # Now move the main object to the next
  # available top-level slot in the target
  json = obj.class.to_jsonmodel(obj)

  source_resource_uri = json['resource']['ref']

  json.resource['ref'] = target_resource_uri
  json.parent = nil

  obj.update_from_json(json, {:force_reposition => true}, false)

  # generate an event to mark this component transfer
  event = Event.for_component_transfer(archival_object_uri, source_resource_uri, target_resource_uri)

  # refresh obj as lock version would have been incremented
  # after the event was created
  obj.refresh

  # let's return the transferred object and the event
  [obj, event]
end