升级修订版作者,将当前帖子添加为修订版本,并将修订版本设置为1

原型

_wp_upgrade_revisions_of_post( WP_Post $post, array $revisions )

参数

$post (WP_Post) (Required) 发布对象

$revisions (array) (Required) 目前对该职位的修订

返回值

(bool)  如果修订版本已升级,则为true;如果出现问题,则为false

源文件

路径:wp-includes/revision.php

<?php
...
function _wp_upgrade_revisions_of_post( $post, $revisions ) {
	global $wpdb;
	// Add post option exclusively
	$lock = "revision-upgrade-{$post->ID}";
	$now = time();
	$result = $wpdb->query( $wpdb->prepare( "INSERT IGNORE INTO `$wpdb->options` (`option_name`, `option_value`, `autoload`) VALUES (%s, %s, 'no') /* LOCK */", $lock, $now ) );
	if ( ! $result ) {
		// If we couldn't get a lock, see how old the previous lock is
		$locked = get_option( $lock );
		if ( ! $locked ) {
			// Can't write to the lock, and can't read the lock.
			// Something broken has happened
			return false;
		}
		if ( $locked > $now - 3600 ) {
			// Lock is not too old: some other process may be upgrading this post.  Bail.
			return false;
		}
		// Lock is too old - update it (below) and continue
	}
	// If we could get a lock, re-"add" the option to fire all the correct filters.
	update_option( $lock, $now );
	reset( $revisions );
	$add_last = true;
	do {
		$this_revision = current( $revisions );
		$prev_revision = next( $revisions );
		$this_revision_version = _wp_get_post_revision_version( $this_revision );
		// Something terrible happened
		if ( false === $this_revision_version )
			continue;
		// 1 is the latest revision version, so we're already up to date.
		// No need to add a copy of the post as latest revision.
		if ( 0 < $this_revision_version ) {
			$add_last = false;
			continue;
		}
		// Always update the revision version
		$update = array(
			'post_name' => preg_replace( '/^(d+-(?:autosave|revision))[d-]*$/', '$1-v1', $this_revision->post_name ),
		);
		// If this revision is the oldest revision of the post, i.e. no $prev_revision,
		// the correct post_author is probably $post->post_author, but that's only a good guess.
		// Update the revision version only and Leave the author as-is.
		if ( $prev_revision ) {
			$prev_revision_version = _wp_get_post_revision_version( $prev_revision );
			// If the previous revision is already up to date, it no longer has the information we need :(
			if ( $prev_revision_version < 1 )
				$update['post_author'] = $prev_revision->post_author;
		}
		// Upgrade this revision
		$result = $wpdb->update( $wpdb->posts, $update, array( 'ID' => $this_revision->ID ) );
		if ( $result )
			wp_cache_delete( $this_revision->ID, 'posts' );
	} while ( $prev_revision );
	delete_option( $lock );
	// Add a copy of the post as latest revision.
	if ( $add_last )
		wp_save_post_revision( $post->ID );
	return true;
}
...
?>

其他

英文文档:https://developer.wordpress.org/reference/functions/_wp_upgrade_revisions_of_post/