_wp_preview_meta_filter() │ WP 6.4.0

Filters preview post meta retrieval to get values from the autosave.

Filters revisioned meta keys only.

Хуков нет.

Возвращает

mixed. Original meta value if the meta key isn't revisioned, the object doesn't exist, the post type is a revision or the post ID doesn't match the object ID. Otherwise, the revisioned meta value is returned for the preview.

Использование

_wp_preview_meta_filter( $value, $object_id, $meta_key, $single );

$value(разное) (обязательный)

Meta value to filter.

$object_id(int) (обязательный)

Object ID.

$meta_key(строка) (обязательный)

Meta key to filter a value for.

$single(true|false) (обязательный)

Whether to return a single value.

Список изменений

Код _wp_preview_meta_filter() wp preview meta filter ^{WP 7.1.2}

function _wp_preview_meta_filter( $value, $object_id, $meta_key, $single ) {
	$post = get_post();

	if ( empty( $post )
		|| $post->ID !== $object_id
		|| ! in_array( $meta_key, wp_post_revision_meta_keys( $post->post_type ), true )
		|| 'revision' === $post->post_type
	) {
		return $value;
	}

	$preview = wp_get_post_autosave( $post->ID );

	if ( false === $preview ) {
		return $value;
	}

	return get_post_meta( $preview->ID, $meta_key, $single );
}