Question

wp_scheduled_delete()

Permanently delete comments or posts of any type that have held a status of ‘trash’ for the number of days defined in EMPTY_TRASH_DAYS.

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description

The default value of EMPTY_TRASH_DAYS is 30 (days).

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源代码

File: wp-includes/functions.php

function wp_scheduled_delete() {
	global $wpdb;

	$delete_timestamp = time() - ( DAY_IN_SECONDS * EMPTY_TRASH_DAYS );

	$posts_to_delete = $wpdb->get_results($wpdb->prepare("SELECT post_id FROM $wpdb->postmeta WHERE meta_key = '_wp_trash_meta_time' AND meta_value < '%d'", $delete_timestamp), ARRAY_A);

	foreach ( (array) $posts_to_delete as $post ) {
		$post_id = (int) $post['post_id'];
		if ( !$post_id )
			continue;

		$del_post = get_post($post_id);

		if ( !$del_post || 'trash' != $del_post->post_status ) {
			delete_post_meta($post_id, '_wp_trash_meta_status');
			delete_post_meta($post_id, '_wp_trash_meta_time');
		} else {
			wp_delete_post($post_id);
		}
	}

	$comments_to_delete = $wpdb->get_results($wpdb->prepare("SELECT comment_id FROM $wpdb->commentmeta WHERE meta_key = '_wp_trash_meta_time' AND meta_value < '%d'", $delete_timestamp), ARRAY_A);

	foreach ( (array) $comments_to_delete as $comment ) {
		$comment_id = (int) $comment['comment_id'];
		if ( !$comment_id )
			continue;

		$del_comment = get_comment($comment_id);

		if ( !$del_comment || 'trash' != $del_comment->comment_approved ) {
			delete_comment_meta($comment_id, '_wp_trash_meta_time');
			delete_comment_meta($comment_id, '_wp_trash_meta_status');
		} else {
			wp_delete_comment( $del_comment );
		}
	}
}

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更新日志

Version	description
2.9.0	Introduced.

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相关函数

Uses

• wp-includes/post.php: wp_delete_post()
• wp-includes/post.php: delete_post_meta()
• wp-includes/post.php: get_post()
• wp-includes/wp-db.php: wpdb::get_results()
• wp-includes/wp-db.php: wpdb::prepare()
• wp-includes/comment.php: wp_delete_comment()
• wp-includes/comment.php: delete_comment_meta()
• wp-includes/comment.php: get_comment()
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User Contributed Notes