Ticket #44466: 44466.diff

wp-includes/taxonomy.php

@@ -4548 +4548 @@
 
         return $parent;
 }
+
+/**
+ * Determines whether a taxonomy is considered "viewable".
+ *
+ * For built-in taxonomies such as categories and tags, the 'public' value will be evaluated.
+ * For all others, the 'publicly_queryable' value will be used.
+ * *
+ * @param string|WP_Taxonomy $taxonomy Taxonomy name or object.
+ * @return bool Whether the taxonomy should be considered viewable.
+ */
+function is_taxonomy_viewable( $taxonomy ) {
+        if ( is_scalar( $taxonomy ) ) {
+                $taxonomy = get_taxonomy( $taxonomy );
+                if ( ! $taxonomy ) {
+                        return false;
+                }
+        }
+
+        if ( ! isset( $taxonomy->publicly_queryable, $taxonomy->_builtin, $taxonomy->public ) ) {
+                return false;
+        }
+
+        return $taxonomy->publicly_queryable || ( $taxonomy->_builtin && $taxonomy->public );
+}