3 namespace Drupal\metatag_open_graph\Plugin\metatag\Tag;
5 use \Drupal\metatag\Plugin\metatag\Tag\MetaPropertyBase;
8 * The Open Graph "Article modified time" meta tag.
11 * id = "article_modified_time",
12 * label = @Translation("Article modification date & time"),
13 * description = @Translation("The date this content was last modified, with an optional time value. Needs to be in <a href='http://en.wikipedia.org/wiki/ISO_8601'>ISO 8601</a> format."),
14 * name = "article:modified_time",
15 * group = "open_graph",
22 class ArticleModifiedTime extends MetaPropertyBase {
23 // Nothing here yet. Just a placeholder class for a plugin.