Why?
I need the post title and slug in the comments endpoint so that i don’t have to make another call to get that data to build the post title link.
Username commented on Post title
There are two ways you can do this:
register_rest_fieldrest_prepare_comment filterrest_api_init action fires when preparing to serve an API requestregister_rest_field() registers a new field on an existing WordPress object type (post, comment etc.) 1//
2// Add post slug to the /comments/ endpoint
3// so that we don't have to make another call to get the post title and slug to build the URLs
4//
5add_action('rest_api_init', function () {
6 // register_rest_field( $object_type, $attribute, $args)
7 register_rest_field('comment', 'post_slsug', array(
8 'get_callback' => function ($comment) {
9 $post = get_post($comment['post']);
10 return $post->post_name;
11 }
12 ));
13});
The same can be written like so:
1//
2// Add post title to the /comments/ endpoint
3// so that we don't have to make another call to get the post title and slug to build the URLs
4//
5add_action('rest_api_init', function () {
6 // register_rest_field( $object_type, $attribute, $args)
7 register_rest_field('comment', 'post_title', array(
8 'get_callback' => send_post_title_with_comments
9 ));
10});
11
12
13// get_callback()
14// this is the data we'll send when somebody calls the endpoint
15function send_post_title_with_comments ($comment_array) {
16 $comment_object = get_comment($comment_array['id']);
17
18 return $comment_object -> post_title; // send back post_title
19}
The rest_prepare_comment() hook lets you modify the comment right before it is returned.
1function send_post_details ($response, $comment, $request) {
2 $parent_post = get_post($response -> data['post']);
3 $title = $parent_post -> post_title;
4 $slug = $parent_post -> post_name;
5
6 $response -> data['post_title'] = $title;
7 $response -> data['post_slug'] = $slug;
8
9 return $response;
10};
11// https://developer.wordpress.org/reference/hooks/rest_prepare_comment/
12add_filter( 'rest_prepare_comment', 'send_post_details', 10, 3);