Ticket #21309: get_the_terms.21309.diff

commit f5ea77aaef460b2a28b75e6446b58020b58805c2
Author: scribu <mail@scribu.net>
Date:   Sat Sep 22 19:48:51 2012 +0300

    use get_the_terms() in WP_Post->__get()

diff --git wp-includes/category-template.php wp-includes/category-template.php
index c4ba37d..fea6979 100644
--- wp-includes/category-template.php
+++ wp-includes/category-template.php
@@ -1062,6 +1062,9 @@ function get_the_terms( $post, $taxonomy ) {
        if ( ! $post = get_post( $post ) )
                return false;
 
+       if ( !is_object_in_taxonomy( $post->post_type, $taxonomy ) )
+               return false;
+
        $terms = get_object_term_cache( $post->ID, $taxonomy );
        if ( false === $terms ) {
                $terms = wp_get_object_terms( $post->ID, $taxonomy );
diff --git wp-includes/post.php wp-includes/post.php
index cac125e..a49d2cf 100644
--- wp-includes/post.php
+++ wp-includes/post.php
@@ -495,17 +495,19 @@ final class WP_Post {
                }
 
                if ( 'post_category' == $key ) {
-                       if ( is_object_in_taxonomy( $this->post_type, 'category' ) )
-                               return wp_get_post_categories( $this->ID );
-                       else
+                       $terms = get_the_terms( $this, 'category' );
+                       if ( !$terms )
                                return array();
+
+                       return wp_list_pluck( $terms, 'term_id' );
                }
 
                if ( 'tags_input' == $key ) {
-                       if ( is_object_in_taxonomy( $this->post_type, 'post_tag' ) )
-                               return wp_get_post_tags( $this->ID, array( 'fields' => 'names' ) );
-                       else
+                       $terms = get_the_terms( $this, 'post_tag' );
+                       if ( !$terms )
                                return array();
+
+                       return wp_list_pluck( $terms, 'name' );
                }
 
                // Rest of the values need filtering