/**
* Constructs instance of Document.
*
* @param WP_Post $attachment Attachment object used to initalize fields.
* @param DG_Gallery $gallery Instance of Gallery class.
*/
public function __construct($attachment, $gallery)
{
// init general document data
$this->gallery = $gallery;
$this->description = wptexturize($attachment->post_content);
$this->ID = $attachment->ID;
$this->link = $gallery->linkToAttachmentPg() ? get_attachment_link($attachment->ID) : wp_get_attachment_url($attachment->ID);
$this->title = wptexturize($attachment->post_title);
$this->title_attribute = esc_attr(strip_tags($this->title));
$this->path = get_attached_file($attachment->ID);
$wp_filetype = wp_check_filetype_and_ext($this->path, basename($this->path));
$this->extension = $wp_filetype['ext'];
$this->size = size_format(filesize($this->path));
}
