upgrade-functions.php

php 开发的内容管理系统

<?php

require_once(ABSPATH . '/wp-admin/admin-functions.php');
require_once(ABSPATH . '/wp-admin/upgrade-schema.php');
// Functions to be called in install and upgrade scripts
function upgrade_all() {
	global $wp_current_db_version, $wp_db_version, $wp_rewrite;
	$wp_current_db_version = __get_option('db_version');

	// We are up-to-date.  Nothing to do.
	if ( $wp_db_version == $wp_current_db_version )
		return;

	// If the version is not set in the DB, try to guess the version.
	if ( empty($wp_current_db_version) ) {
		$wp_current_db_version = 0;

		// If the template option exists, we have 1.5.
		$template = __get_option('template');
		if ( !empty($template) )
			$wp_current_db_version = 2541;
	}
	
	populate_options();

	if ( $wp_current_db_version < 2541 ) {
		upgrade_100();
		upgrade_101();
		upgrade_110();
		upgrade_130();
	}
	
	if ( $wp_current_db_version < 3308 )
		upgrade_160();

	$wp_rewrite->flush_rules();
	
	update_option('db_version', $wp_db_version);
}

function upgrade_100() {
	global $wpdb;

	// Get the title and ID of every post, post_name to check if it already has a value
	$posts = $wpdb->get_results("SELECT ID, post_title, post_name FROM $wpdb->posts WHERE post_name = ''");
	if ($posts) {
		foreach($posts as $post) {
			if ('' == $post->post_name) { 
				$newtitle = sanitize_title($post->post_title);
				$wpdb->query("UPDATE $wpdb->posts SET post_name = '$newtitle' WHERE ID = '$post->ID'");
			}
		}
	}
	
	$categories = $wpdb->get_results("SELECT cat_ID, cat_name, category_nicename FROM $wpdb->categories");
	foreach ($categories as $category) {
		if ('' == $category->category_nicename) { 
			$newtitle = sanitize_title($category->cat_name);
			$wpdb->query("UPDATE $wpdb->categories SET category_nicename = '$newtitle' WHERE cat_ID = '$category->cat_ID'");
		}
	}


	$wpdb->query("UPDATE $wpdb->options SET option_value = REPLACE(option_value, 'wp-links/links-images/', 'wp-images/links/')
	WHERE option_name LIKE 'links_rating_image%'
	AND option_value LIKE 'wp-links/links-images/%'");

	$done_ids = $wpdb->get_results("SELECT DISTINCT post_id FROM $wpdb->post2cat");
	if ($done_ids) :
		foreach ($done_ids as $done_id) :
			$done_posts[] = $done_id->post_id;
		endforeach;
		$catwhere = ' AND ID NOT IN (' . implode(',', $done_posts) . ')';
	else:
		$catwhere = '';
	endif;
	
	$allposts = $wpdb->get_results("SELECT ID, post_category FROM $wpdb->posts WHERE post_category != '0' $catwhere");
	if ($allposts) :
		foreach ($allposts as $post) {
			// Check to see if it's already been imported
			$cat = $wpdb->get_row("SELECT * FROM $wpdb->post2cat WHERE post_id = $post->ID AND category_id = $post->post_category");
			if (!$cat && 0 != $post->post_category) { // If there's no result
				$wpdb->query("
					INSERT INTO $wpdb->post2cat
					(post_id, category_id)
					VALUES
					('$post->ID', '$post->post_category')
					");
			}
		}
	endif;
}

function upgrade_101() {
	global $wpdb;

	// Clean up indices, add a few
	add_clean_index($wpdb->posts, 'post_name');
	add_clean_index($wpdb->posts, 'post_status');
	add_clean_index($wpdb->categories, 'category_nicename');
	add_clean_index($wpdb->comments, 'comment_approved');
	add_clean_index($wpdb->comments, 'comment_post_ID');
	add_clean_index($wpdb->links , 'link_category');
	add_clean_index($wpdb->links , 'link_visible');
}


function upgrade_110() {
	global $wpdb;
	
    // Set user_nicename.
	$users = $wpdb->get_results("SELECT ID, user_nickname, user_nicename FROM $wpdb->users");
 	foreach ($users as $user) {
 		if ('' == $user->user_nicename) { 
 			$newname = sanitize_title($user->user_nickname);
 			$wpdb->query("UPDATE $wpdb->users SET user_nicename = '$newname' WHERE ID = '$user->ID'");
 		}
 	}

	$users = $wpdb->get_results("SELECT ID, user_pass from $wpdb->users");
	foreach ($users as $row) {
		if (!preg_match('/^[A-Fa-f0-9]{32}$/', $row->user_pass)) {
			   $wpdb->query('UPDATE '.$wpdb->users.' SET user_pass = MD5(\''.$row->user_pass.'\') WHERE ID = \''.$row->ID.'\'');
		}
	}


	// Get the GMT offset, we'll use that later on
	$all_options = get_alloptions_110();

	$time_difference = $all_options->time_difference;

	$server_time = time()+date('Z');
	$weblogger_time = $server_time + $time_difference*3600;
	$gmt_time = time();

	$diff_gmt_server = ($gmt_time - $server_time) / 3600;
	$diff_weblogger_server = ($weblogger_time - $server_time) / 3600;
	$diff_gmt_weblogger = $diff_gmt_server - $diff_weblogger_server;
	$gmt_offset = -$diff_gmt_weblogger;

	// Add a gmt_offset option, with value $gmt_offset
	add_option('gmt_offset', $gmt_offset);

	// Check if we already set the GMT fields (if we did, then
	// MAX(post_date_gmt) can't be '0000-00-00 00:00:00'
	// <michel_v> I just slapped myself silly for not thinking about it earlier
	$got_gmt_fields = ($wpdb->get_var("SELECT MAX(post_date_gmt) FROM $wpdb->posts") == '0000-00-00 00:00:00') ? false : true;

	if (!$got_gmt_fields) {

		// Add or substract time to all dates, to get GMT dates
		$add_hours = intval($diff_gmt_weblogger);
		$add_minutes = intval(60 * ($diff_gmt_weblogger - $add_hours));
		$wpdb->query("UPDATE $wpdb->posts SET post_date_gmt = DATE_ADD(post_date, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE)");
		$wpdb->query("UPDATE $wpdb->posts SET post_modified = post_date");
		$wpdb->query("UPDATE $wpdb->posts SET post_modified_gmt = DATE_ADD(post_modified, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE) WHERE post_modified != '0000-00-00 00:00:00'");
		$wpdb->query("UPDATE $wpdb->comments SET comment_date_gmt = DATE_ADD(comment_date, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE)");
		$wpdb->query("UPDATE $wpdb->users SET user_registered = DATE_ADD(user_registered, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE)");
	}

}

function upgrade_130() {
    global $wpdb, $table_prefix;

    // 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->query("UPDATE $wpdb->posts SET post_title = '$post_title', post_content = '$post_content', post_excerpt = '$post_excerpt', guid = '$guid' WHERE ID = '$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) {
            $comment_content = addslashes(deslash($comment->comment_content));
            $comment_author = addslashes(deslash($comment->comment_author));
            $wpdb->query("UPDATE $wpdb->comments SET comment_content = '$comment_content', comment_author = '$comment_author' WHERE comment_ID = '$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) {
            $link_name = addslashes(deslash($link->link_name));
            $link_description = addslashes(deslash($link->link_description));
            $wpdb->query("UPDATE $wpdb->links SET link_name = '$link_name', link_description = '$link_description' WHERE link_id = '$link->link_id'");
		}
	}

    // The "paged" option for what_to_show is no more.
    if ($wpdb->get_var("SELECT option_value FROM $wpdb->options WHERE option_name = 'what_to_show'") == 'paged') {
        $wpdb->query("UPDATE $wpdb->options SET option_value = 'posts' WHERE option_name = 'what_to_show'");
    }

		$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 ' . $table_prefix . 'optionvalues');
	$wpdb->query('DROP TABLE IF EXISTS ' . $table_prefix . 'optiontypes');
	$wpdb->query('DROP TABLE IF EXISTS ' . $table_prefix . 'optiongroups');
	$wpdb->query('DROP TABLE IF EXISTS ' . $table_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 ) {
		if ( 1 != $option->dupes ) { // Could this be done in the query?
			$limit = $option->dupes - 1;
			$dupe_ids = $wpdb->get_col("SELECT option_id FROM $wpdb->options WHERE option_name = '$option->option_name' LIMIT $limit");
			$dupe_ids = join($dupe_ids, ',');
			$wpdb->query("DELETE FROM $wpdb->options WHERE option_id IN ($dupe_ids)");
		}
	}

	make_site_theme();
}

function upgrade_160() {
	global $wpdb, $table_prefix, $wp_current_db_version;

	populate_roles_160();

	$users = $wpdb->get_results("SELECT * FROM $wpdb->users");
	foreach ( $users as $user ) :
		if ( !empty( $user->user_firstname ) )
			update_usermeta( $user->ID, 'first_name', $wpdb->escape($user->user_firstname) );
		if ( !empty( $user->user_lastname ) )
			update_usermeta( $user->ID, 'last_name', $wpdb->escape($user->user_lastname) );
		if ( !empty( $user->user_nickname ) )
			update_usermeta( $user->ID, 'nickname', $wpdb->escape($user->user_nickname) );
		if ( !empty( $user->user_level ) )
			update_usermeta( $user->ID, $table_prefix . 'user_level', $user->user_level );
		if ( !empty( $user->user_icq ) )
			update_usermeta( $user->ID, 'icq', $wpdb->escape($user->user_icq) );
		if ( !empty( $user->user_aim ) )
			update_usermeta( $user->ID, 'aim', $wpdb->escape($user->user_aim) );
		if ( !empty( $user->user_msn ) )
			update_usermeta( $user->ID, 'msn', $wpdb->escape($user->user_msn) );
		if ( !empty( $user->user_yim ) )
			update_usermeta( $user->ID, 'yim', $wpdb->escape($user->user_icq) );
		if ( !empty( $user->user_description ) )
			update_usermeta( $user->ID, 'description', $wpdb->escape($user->user_description) );

		if ( isset( $user->user_idmode ) ):
			$idmode = $user->user_idmode;
			if ($idmode == 'nickname') $id = $user->user_nickname;
			if ($idmode == 'login') $id = $user->user_login;
			if ($idmode == 'firstname') $id = $user->user_firstname;
			if ($idmode == 'lastname') $id = $user->user_lastname;
			if ($idmode == 'namefl') $id = $user->user_firstname.' '.$user->user_lastname;
			if ($idmode == 'namelf') $id = $user->user_lastname.' '.$user->user_firstname;
			if (!$idmode) $id = $user->user_nickname;
			$id = $wpdb->escape( $id );
			$wpdb->query("UPDATE $wpdb->users SET display_name = '$id' WHERE ID = '$user->ID'");
		endif;
		
		// FIXME: RESET_CAPS is temporary code to reset roles and caps if flag is set.
		$caps = get_usermeta( $user->ID, $table_prefix . 'capabilities');
		if ( empty($caps) || defined('RESET_CAPS') ) {