
什么是及如何使用WordPress CLI
wp_ajax_set_attachment_thumbnail ( No parameters )
wp_ajax_set_attachment_thumbnail:此函数处理ajax请求,将附件设置为post缩略图。它接受附件ID和文章ID作为参数,并将附件设置为文章缩略图。
设置附件的特色图片的Ajax处理程序。
function wp_ajax_set_attachment_thumbnail() { if ( empty( $_POST['urls'] ) || ! is_array( $_POST['urls'] ) ) { wp_send_json_error(); } $thumbnail_id = (int) $_POST['thumbnail_id']; if ( empty( $thumbnail_id ) ) { wp_send_json_error(); } $post_ids = array(); // For each URL, try to find its corresponding post ID. foreach ( $_POST['urls'] as $url ) { $post_id = attachment_url_to_postid( $url ); if ( ! empty( $post_id ) ) { $post_ids[] = $post_id; } } if ( empty( $post_ids ) ) { wp_send_json_error(); } $success = 0; // For each found attachment, set its thumbnail. foreach ( $post_ids as $post_id ) { if ( ! current_user_can( 'edit_post', $post_id ) ) { continue; } if ( set_post_thumbnail( $post_id, $thumbnail_id ) ) { $success++; } } if ( 0 === $success ) { wp_send_json_error(); } else { wp_send_json_success(); } wp_send_json_error(); }