upgrade_160()

执行WordPress 2.0中所做的更改。

原型

upgrade_160()

源文件

路径：wp-admin/includes/upgrade.php

<?php
...
}
/**
 * Execute changes made in WordPress 1.5.
 *
 * @ignore
 * @since 1.5.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 */
function upgrade_130() {
	global $wpdb;
	// Remove extraneous backslashes.
	$posts = $wpdb->get_results("SELECT ID, post_title, post_content, post_excerpt, guid, post_date, post_name, post_status, post_author FROM $wpdb->posts");
	if ($posts) {
		foreach ($posts as $post) {
			$post_content = addslashes(deslash($post->post_content));
			$post_title = addslashes(deslash($post->post_title));
			$post_excerpt = addslashes(deslash($post->post_excerpt));
			if ( empty($post->guid) )
				$guid = get_permalink($post->ID);
			else
				$guid = $post->guid;
			$wpdb->update( $wpdb->posts, compact('post_title', 'post_content', 'post_excerpt', 'guid'), array('ID' => $post->ID) );
		}
	}
	// Remove extraneous backslashes.
	$comments = $wpdb->get_results("SELECT comment_ID, comment_author, comment_content FROM $wpdb->comments");
	if ($comments) {
		foreach ($comments as $comment) {
			$comment_content = deslash($comment->comment_content);
			$comment_author = deslash($comment->comment_author);
			$wpdb->update($wpdb->comments, compact('comment_content', 'comment_author'), array('comment_ID' => $comment->comment_ID) );
		}
	}
	// Remove extraneous backslashes.
	$links = $wpdb->get_results("SELECT link_id, link_name, link_description FROM $wpdb->links");
	if ($links) {
		foreach ($links as $link) {
			$link_name = deslash($link->link_name);
			$link_description = deslash($link->link_description);
			$wpdb->update( $wpdb->links, compact('link_name', 'link_description'), array('link_id' => $link->link_id) );
		}
	}
	$active_plugins = __get_option('active_plugins');
	/*
	 * If plugins are not stored in an array, they're stored in the old
	 * newline separated format. Convert to new format.
	 */
	if ( !is_array( $active_plugins ) ) {
		$active_plugins = explode("n", trim($active_plugins));
		update_option('active_plugins', $active_plugins);
	}
	// Obsolete tables
	$wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'optionvalues');
	$wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'optiontypes');
	$wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'optiongroups');
	$wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'optiongroup_options');
	// Update comments table to use comment_type
	$wpdb->query("UPDATE $wpdb->comments SET comment_type='trackback', comment_content = REPLACE(comment_content, '<trackback />', '') WHERE comment_content LIKE '<trackback />%'");
	$wpdb->query("UPDATE $wpdb->comments SET comment_type='pingback', comment_content = REPLACE(comment_content, '<pingback />', '') WHERE comment_content LIKE '<pingback />%'");
	// Some versions have multiple duplicate option_name rows with the same values
	$options = $wpdb->get_results("SELECT option_name, COUNT(option_name) AS dupes FROM `$wpdb->options` GROUP BY option_name");
	foreach ( $options as $option ) {
...
?>

其他

英文文档：https://developer.wordpress.org/reference/functions/upgrade_160/