Issue #3264794 by vuil: Add tag "inLanguage" into the Schema.org PublicationIssue

config/schema/schema_publication_issue.metatag_tag.schema.yml

@@ -26,9 +26,12 @@ metatag.metatag_tag.schema_publication_issue_encoding_format:
 metatag.metatag_tag.schema_publication_issue_headline:
   type: label
   label: 'headline'
-metatag.metatag_tag.schema_article_image:
+metatag.metatag_tag.schema_publication_issue_image:
   type: text
   label: 'image'
+metatag.metatag_tag.schema_publication_issue_in_language:
+  type: text
+  label: 'language'
 metatag.metatag_tag.schema_publication_issue_issue_number:
   type: label
   label: 'issueNumber'

src/Plugin/metatag/Tag/SchemaPublicationIssueInLanguage.php

+<?php
+
+namespace Drupal\schema_publication_issue\Plugin\metatag\Tag;
+
+use Drupal\schema_metatag\Plugin\metatag\Tag\SchemaNameBase;
+
+/**
+ * Provides a plugin for the 'schema_publication_issue_in_language' meta tag.
+ *
+ * - 'id' should be a globally unique id.
+ * - 'name' should match the Schema.org element name.
+ * - 'group' should match the id of the group that defines the Schema.org type.
+ *
+ * @MetatagTag(
+ *   id = "schema_publication_issue_in_language",
+ *   label = @Translation("inLanguage"),
+ *   description = @Translation("The language of the content"),
+ *   name = "inLanguage",
+ *   group = "schema_publication_issue",
+ *   weight = 11,
+ *   type = "string",
+ *   secure = FALSE,
+ *   multiple = FALSE,
+ *   property_type = "text",
+ *   tree_parent = {},
+ *   tree_depth = -1,
+ * )
+ */
+class SchemaPublicationIssueInLanguage extends SchemaNameBase {
+
+}