Class: DigitalObjectHandler

Inherits:
Handler
  • Object
show all
Defined in:
backend/app/lib/bulk_import/digital_object_handler.rb

Constant Summary

Constants inherited from Handler

Handler::DISAMB_STR

Instance Method Summary collapse

Methods inherited from Handler

#clear, #save, #search, #stored

Constructor Details

#initialize(current_user, validate_only = false) ⇒ DigitalObjectHandler

Returns a new instance of DigitalObjectHandler.



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

def initialize(current_user, validate_only = false)
  super
  # we don't currently use this, but it will come in handy with enhancements
  @digital_object_types ||= CvList.new("digital_object_digital_object_type", @current_user)
  @file_format_names    ||= CvList.new("file_version_file_format_name", @current_user)
  @file_use_statement   ||= CvList.new("file_version_use_statement", @current_user)
end

Instance Method Details

#check_digital_id(dig_id) ⇒ Object 



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# File 'backend/app/lib/bulk_import/digital_object_handler.rb', line 14

def check_digital_id(dig_id)
  params = { :q => "digital_object_id:\"#{dig_id}\"" }
  ret = search(nil, params, :digital_object, "digital_object", "", @report)
  ret = ret.nil?
end

#create(title, id, publish, level, digital_object_type, restrictions, dates, notes, extents, subjects, linked_agents, archival_object, report, representative_file_version = nil, non_representative_file_version = nil) ⇒ Object 



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# File 'backend/app/lib/bulk_import/digital_object_handler.rb', line 20

def create(
    title,
    id,
    publish,
    level,
    digital_object_type,
    restrictions,
    dates,
    notes,
    extents,
    subjects,
    linked_agents,
    archival_object,
    report,
    representative_file_version = nil,
    non_representative_file_version = nil
  )
  digital_object = nil
  digital_object_instance = nil

  # might as well check the dig_id first
  if @validate_only
    if archival_object.nil?
      archival_object = JSONModel(:archival_object).new._always_valid!
      archival_object.title = "random title"
      archival_object.ref_id = "VAL#{rand(1000000)}"
    end
  end
  osn = id || SecureRandom.hex
  if !check_digital_id(osn)
    raise BulkImportException.new(I18n.t("bulk_import.error.dig_obj_unique", :id => osn))
  end

  errors = []
  if representative_file_version
    errors << validate_enum(representative_file_version[:file_format_name], @file_format_names, report)
    errors << validate_enum(representative_file_version[:use_statement], @file_use_statement, report)
  end

  if non_representative_file_version
    errors << validate_enum(non_representative_file_version[:file_format_name], @file_format_names, report)
    errors << validate_enum(non_representative_file_version[:use_statement], @file_use_statement, report)
  end

  return nil unless errors.compact.empty?

  files = []
  files.push JSONModel(:file_version).from_hash(representative_file_version) if representative_file_version
  files.push JSONModel(:file_version).from_hash(non_representative_file_version) if non_representative_file_version

  digital_object = JSONModel(:digital_object).new._always_valid!
  digital_object.title = title.nil? ? archival_object.display_string : title
  digital_object.digital_object_id = osn
  digital_object.file_versions = files if files.any?
  digital_object.publish = publish
  digital_object.level = level
  digital_object.digital_object_type = digital_object_type
  digital_object.restrictions = restrictions
  digital_object.dates = dates
  digital_object.notes = notes
  digital_object.extents = extents
  subjects.each { |subject| digital_object.subjects.push({ "ref" => subject.uri }) }

  digital_object.linked_agents = linked_agents

  begin
    digital_object = save(digital_object, DigitalObject)
  rescue JSONModel::ValidationException => ve
    report.add_errors(I18n.t("bulk_import.error.dig_validation", :err => ve.errors))
    return nil
  rescue Exception => e
    raise e
  end
  report.add_info(I18n.t(@create_key, :what => I18n.t("bulk_import.dig"), :id => "'#{digital_object.title}' #{digital_object.uri} [#{digital_object.digital_object_id}]"))
  digital_object_instance = JSONModel(:instance).new._always_valid!
  digital_object_instance.instance_type = "digital_object"
  digital_object_instance.digital_object = { "ref" => @validate_only ? "http://x" : digital_object.uri }
  digital_object_instance
end

#renew ⇒ Object 



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# File 'backend/app/lib/bulk_import/digital_object_handler.rb', line 100

def renew
  clear(@digital_object_types)
end