如果遗漏,可能会尝试生成附件元数据。
原型
wp_maybe_generate_attachment_metadata( WP_Post $attachment )
参数
$attachment
(WP_Post)
(Required)
附件对象。
源文件
路径:wp-includes/media.php
<?php
...
function wp_maybe_generate_attachment_metadata( $attachment ) {
if ( empty( $attachment ) || ( empty( $attachment->ID ) || ! $attachment_id = (int) $attachment->ID ) ) {
return;
}
$file = get_attached_file( $attachment_id );
$meta = wp_get_attachment_metadata( $attachment_id );
if ( empty( $meta ) && file_exists( $file ) ) {
$_meta = get_post_meta( $attachment_id );
$regeneration_lock = 'wp_generating_att_' . $attachment_id;
if ( ! array_key_exists( '_wp_attachment_metadata', $_meta ) && ! get_transient( $regeneration_lock ) ) {
set_transient( $regeneration_lock, $file );
wp_update_attachment_metadata( $attachment_id, wp_generate_attachment_metadata( $attachment_id, $file ) );
delete_transient( $regeneration_lock );
}
}
}
...
?>
其他
英文文档:https://developer.wordpress.org/reference/functions/wp_maybe_generate_attachment_metadata/