Ticket #12443: get_ancestors.2.12443.diff

wp-includes/taxonomy.php

@@ -2682 +2682 @@
 
         return false;
 }
+ 
+/**
+ * Get an array of ancestor IDs for a given object.
+ *
+ * @param int $object_id The ID of the object
+ * @param string $object_type The type of object for which we'll be retrieving ancestors.
+ * @return array of ancestors from lowest to highest in the hierarchy.
+ */
+function get_ancestors($object_id = 0, $object_type = '') {
+        $object_id = (int) $object_id;
+ 
+        $ancestors = array();
+
+        if ( empty( $object_id ) ) {
+                return apply_filters('get_ancestors', $ancestors, $object_id, $object_type);
+        }
+                
+        if ( is_taxonomy_hierarchical( $object_type ) ) {
+                $term = get_term($object_id, $object_type);
+                while ( ! is_wp_error($term) && ! empty( $term->parent ) && ! in_array( $term->parent, $ancestors ) ) {
+                        $ancestors[] = (int) $term->parent;
+                        $term = get_term($term->parent, $object_type);
+                }
+        } elseif ( null !== get_post_type_object( $object_type ) ) {
+                $object = get_post($object_id);
+                if ( ! is_wp_error( $object ) && isset( $object->ancestors ) && is_array( $object->ancestors ) ) 
+                        $ancestors = $object->ancestors;
+                else {
+                        while ( ! is_wp_error($object) && ! empty( $object->post_parent ) && ! in_array( $object->post_parent, $ancestors ) ) {
+                                $ancestors[] = (int) $object->post_parent;
+                                $object = get_post($object->post_parent);
+                        }
+                }
+        }
+
+        return apply_filters('get_ancestors', $ancestors, $object_id, $object_type);
+}