module ActionText::Attachable

def to_rich_text_attributes(attributes = {})
  attributes.dup.tap do |attrs|
    attrs[:sgid] = attachable_sgid
    attrs[:content_type] = attachable_content_type
    attrs[:previewable] = true if previewable_attachable?
    attrs[:filename] = attachable_filename
    attrs[:filesize] = attachable_filesize
    attrs[:width] = attachable_metadata[:width]
    attrs[:height] = attachable_metadata[:height]
  end.compact
end