3 * WordPress Upgrade API
5 * Most of the functions are pluggable and can be overwritten.
8 * @subpackage Administration
11 /** Include user install customize script. */
12 if ( file_exists(WP_CONTENT_DIR . '/install.php') )
13 require (WP_CONTENT_DIR . '/install.php');
15 /** WordPress Administration API */
16 require_once(ABSPATH . 'wp-admin/includes/admin.php');
18 /** WordPress Schema API */
19 require_once(ABSPATH . 'wp-admin/includes/schema.php');
21 if ( !function_exists('wp_install') ) :
25 * Runs the required functions to set up and populate the database,
26 * including primary admin user and initial options.
30 * @param string $blog_title Site title.
31 * @param string $user_name User's username.
32 * @param string $user_email User's email.
33 * @param bool $public Whether site is public.
34 * @param string $deprecated Optional. Not used.
35 * @param string $user_password Optional. User's chosen password. Default empty (random password).
36 * @param string $language Optional. Language chosen. Default empty.
37 * @return array Array keys 'url', 'user_id', 'password', and 'password_message'.
39 function wp_install( $blog_title, $user_name, $user_email, $public, $deprecated = '', $user_password = '', $language = '' ) {
40 if ( !empty( $deprecated ) )
41 _deprecated_argument( __FUNCTION__, '2.6.0' );
43 wp_check_mysql_version();
45 make_db_current_silent();
49 update_option('blogname', $blog_title);
50 update_option('admin_email', $user_email);
51 update_option('blog_public', $public);
54 update_option( 'WPLANG', $language );
57 $guessurl = wp_guess_url();
59 update_option('siteurl', $guessurl);
61 // If not a public blog, don't ping.
63 update_option('default_pingback_flag', 0);
66 * Create default user. If the user already exists, the user tables are
67 * being shared among sites. Just set the role in that case.
69 $user_id = username_exists($user_name);
70 $user_password = trim($user_password);
71 $email_password = false;
72 if ( !$user_id && empty($user_password) ) {
73 $user_password = wp_generate_password( 12, false );
74 $message = __('<strong><em>Note that password</em></strong> carefully! It is a <em>random</em> password that was generated just for you.');
75 $user_id = wp_create_user($user_name, $user_password, $user_email);
76 update_user_option($user_id, 'default_password_nag', true, true);
77 $email_password = true;
78 } elseif ( ! $user_id ) {
79 // Password has been provided
80 $message = '<em>'.__('Your chosen password.').'</em>';
81 $user_id = wp_create_user($user_name, $user_password, $user_email);
83 $message = __('User already exists. Password inherited.');
86 $user = new WP_User($user_id);
87 $user->set_role('administrator');
89 wp_install_defaults($user_id);
91 wp_install_maybe_enable_pretty_permalinks();
93 flush_rewrite_rules();
95 wp_new_blog_notification($blog_title, $guessurl, $user_id, ($email_password ? $user_password : __('The password you chose during the install.') ) );
100 * Fires after a site is fully installed.
104 * @param WP_User $user The site owner.
106 do_action( 'wp_install', $user );
108 return array('url' => $guessurl, 'user_id' => $user_id, 'password' => $user_password, 'password_message' => $message);
112 if ( !function_exists('wp_install_defaults') ) :
114 * Creates the initial content for a newly-installed site.
116 * Adds the default "Uncategorized" category, the first post (with comment),
117 * first page, and default widgets for default theme for the current version.
122 * @global WP_Rewrite $wp_rewrite
123 * @global string $table_prefix
125 * @param int $user_id User ID.
127 function wp_install_defaults( $user_id ) {
128 global $wpdb, $wp_rewrite, $table_prefix;
131 $cat_name = __('Uncategorized');
132 /* translators: Default category slug */
133 $cat_slug = sanitize_title(_x('Uncategorized', 'Default category slug'));
135 if ( global_terms_enabled() ) {
136 $cat_id = $wpdb->get_var( $wpdb->prepare( "SELECT cat_ID FROM {$wpdb->sitecategories} WHERE category_nicename = %s", $cat_slug ) );
137 if ( $cat_id == null ) {
138 $wpdb->insert( $wpdb->sitecategories, array('cat_ID' => 0, 'cat_name' => $cat_name, 'category_nicename' => $cat_slug, 'last_updated' => current_time('mysql', true)) );
139 $cat_id = $wpdb->insert_id;
141 update_option('default_category', $cat_id);
146 $wpdb->insert( $wpdb->terms, array('term_id' => $cat_id, 'name' => $cat_name, 'slug' => $cat_slug, 'term_group' => 0) );
147 $wpdb->insert( $wpdb->term_taxonomy, array('term_id' => $cat_id, 'taxonomy' => 'category', 'description' => '', 'parent' => 0, 'count' => 1));
148 $cat_tt_id = $wpdb->insert_id;
151 $now = current_time( 'mysql' );
152 $now_gmt = current_time( 'mysql', 1 );
153 $first_post_guid = get_option( 'home' ) . '/?p=1';
155 if ( is_multisite() ) {
156 $first_post = get_site_option( 'first_post' );
158 if ( ! $first_post ) {
159 /* translators: %s: site link */
160 $first_post = __( 'Welcome to %s. This is your first post. Edit or delete it, then start blogging!' );
163 $first_post = sprintf( $first_post,
164 sprintf( '<a href="%s">%s</a>', esc_url( network_home_url() ), get_current_site()->site_name )
167 // Back-compat for pre-4.4
168 $first_post = str_replace( 'SITE_URL', esc_url( network_home_url() ), $first_post );
169 $first_post = str_replace( 'SITE_NAME', get_current_site()->site_name, $first_post );
171 $first_post = __( 'Welcome to WordPress. This is your first post. Edit or delete it, then start writing!' );
174 $wpdb->insert( $wpdb->posts, array(
175 'post_author' => $user_id,
177 'post_date_gmt' => $now_gmt,
178 'post_content' => $first_post,
179 'post_excerpt' => '',
180 'post_title' => __('Hello world!'),
181 /* translators: Default post slug */
182 'post_name' => sanitize_title( _x('hello-world', 'Default post slug') ),
183 'post_modified' => $now,
184 'post_modified_gmt' => $now_gmt,
185 'guid' => $first_post_guid,
186 'comment_count' => 1,
189 'post_content_filtered' => ''
191 $wpdb->insert( $wpdb->term_relationships, array('term_taxonomy_id' => $cat_tt_id, 'object_id' => 1) );
194 $first_comment_author = __( 'A WordPress Commenter' );
195 $first_comment_email = 'wapuu@wordpress.example';
196 $first_comment_url = 'https://wordpress.org/';
197 $first_comment = __( 'Hi, this is a comment.
198 To get started with moderating, editing, and deleting comments, please visit the Comments screen in the dashboard.
199 Commenter avatars come from <a href="https://gravatar.com">Gravatar</a>.' );
200 if ( is_multisite() ) {
201 $first_comment_author = get_site_option( 'first_comment_author', $first_comment_author );
202 $first_comment_email = get_site_option( 'first_comment_email', $first_comment_email );
203 $first_comment_url = get_site_option( 'first_comment_url', network_home_url() );
204 $first_comment = get_site_option( 'first_comment', $first_comment );
206 $wpdb->insert( $wpdb->comments, array(
207 'comment_post_ID' => 1,
208 'comment_author' => $first_comment_author,
209 'comment_author_email' => $first_comment_email,
210 'comment_author_url' => $first_comment_url,
211 'comment_date' => $now,
212 'comment_date_gmt' => $now_gmt,
213 'comment_content' => $first_comment
217 $first_page = sprintf( __( "This is an example page. It's different from a blog post because it will stay in one place and will show up in your site navigation (in most themes). Most people start with an About page that introduces them to potential site visitors. It might say something like this:
219 <blockquote>Hi there! I'm a bike messenger by day, aspiring actor by night, and this is my website. I live in Los Angeles, have a great dog named Jack, and I like piña coladas. (And gettin' caught in the rain.)</blockquote>
221 ...or something like this:
223 <blockquote>The XYZ Doohickey Company was founded in 1971, and has been providing quality doohickeys to the public ever since. Located in Gotham City, XYZ employs over 2,000 people and does all kinds of awesome things for the Gotham community.</blockquote>
225 As a new WordPress user, you should go to <a href=\"%s\">your dashboard</a> to delete this page and create new pages for your content. Have fun!" ), admin_url() );
226 if ( is_multisite() )
227 $first_page = get_site_option( 'first_page', $first_page );
228 $first_post_guid = get_option('home') . '/?page_id=2';
229 $wpdb->insert( $wpdb->posts, array(
230 'post_author' => $user_id,
232 'post_date_gmt' => $now_gmt,
233 'post_content' => $first_page,
234 'post_excerpt' => '',
235 'comment_status' => 'closed',
236 'post_title' => __( 'Sample Page' ),
237 /* translators: Default page slug */
238 'post_name' => __( 'sample-page' ),
239 'post_modified' => $now,
240 'post_modified_gmt' => $now_gmt,
241 'guid' => $first_post_guid,
242 'post_type' => 'page',
245 'post_content_filtered' => ''
247 $wpdb->insert( $wpdb->postmeta, array( 'post_id' => 2, 'meta_key' => '_wp_page_template', 'meta_value' => 'default' ) );
249 // Set up default widgets for default theme.
250 update_option( 'widget_search', array ( 2 => array ( 'title' => '' ), '_multiwidget' => 1 ) );
251 update_option( 'widget_recent-posts', array ( 2 => array ( 'title' => '', 'number' => 5 ), '_multiwidget' => 1 ) );
252 update_option( 'widget_recent-comments', array ( 2 => array ( 'title' => '', 'number' => 5 ), '_multiwidget' => 1 ) );
253 update_option( 'widget_archives', array ( 2 => array ( 'title' => '', 'count' => 0, 'dropdown' => 0 ), '_multiwidget' => 1 ) );
254 update_option( 'widget_categories', array ( 2 => array ( 'title' => '', 'count' => 0, 'hierarchical' => 0, 'dropdown' => 0 ), '_multiwidget' => 1 ) );
255 update_option( 'widget_meta', array ( 2 => array ( 'title' => '' ), '_multiwidget' => 1 ) );
256 update_option( 'sidebars_widgets', array ( 'wp_inactive_widgets' => array (), 'sidebar-1' => array ( 0 => 'search-2', 1 => 'recent-posts-2', 2 => 'recent-comments-2', 3 => 'archives-2', 4 => 'categories-2', 5 => 'meta-2', ), 'array_version' => 3 ) );
258 if ( ! is_multisite() )
259 update_user_meta( $user_id, 'show_welcome_panel', 1 );
260 elseif ( ! is_super_admin( $user_id ) && ! metadata_exists( 'user', $user_id, 'show_welcome_panel' ) )
261 update_user_meta( $user_id, 'show_welcome_panel', 2 );
263 if ( is_multisite() ) {
264 // Flush rules to pick up the new page.
266 $wp_rewrite->flush_rules();
268 $user = new WP_User($user_id);
269 $wpdb->update( $wpdb->options, array('option_value' => $user->user_email), array('option_name' => 'admin_email') );
271 // Remove all perms except for the login user.
272 $wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->usermeta WHERE user_id != %d AND meta_key = %s", $user_id, $table_prefix.'user_level') );
273 $wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->usermeta WHERE user_id != %d AND meta_key = %s", $user_id, $table_prefix.'capabilities') );
275 // Delete any caps that snuck into the previously active blog. (Hardcoded to blog 1 for now.) TODO: Get previous_blog_id.
276 if ( !is_super_admin( $user_id ) && $user_id != 1 )
277 $wpdb->delete( $wpdb->usermeta, array( 'user_id' => $user_id , 'meta_key' => $wpdb->base_prefix.'1_capabilities' ) );
283 * Maybe enable pretty permalinks on install.
285 * If after enabling pretty permalinks don't work, fallback to query-string permalinks.
289 * @global WP_Rewrite $wp_rewrite WordPress rewrite component.
291 * @return bool Whether pretty permalinks are enabled. False otherwise.
293 function wp_install_maybe_enable_pretty_permalinks() {
296 // Bail if a permalink structure is already enabled.
297 if ( get_option( 'permalink_structure' ) ) {
302 * The Permalink structures to attempt.
304 * The first is designed for mod_rewrite or nginx rewriting.
306 * The second is PATHINFO-based permalinks for web server configurations
307 * without a true rewrite module enabled.
309 $permalink_structures = array(
310 '/%year%/%monthnum%/%day%/%postname%/',
311 '/index.php/%year%/%monthnum%/%day%/%postname%/'
314 foreach ( (array) $permalink_structures as $permalink_structure ) {
315 $wp_rewrite->set_permalink_structure( $permalink_structure );
318 * Flush rules with the hard option to force refresh of the web-server's
319 * rewrite config file (e.g. .htaccess or web.config).
321 $wp_rewrite->flush_rules( true );
325 // Test against a real WordPress Post
326 $first_post = get_page_by_path( sanitize_title( _x( 'hello-world', 'Default post slug' ) ), OBJECT, 'post' );
328 $test_url = get_permalink( $first_post->ID );
332 * Send a request to the site, and check whether
333 * the 'x-pingback' header is returned as expected.
335 * Uses wp_remote_get() instead of wp_remote_head() because web servers
336 * can block head requests.
338 $response = wp_remote_get( $test_url, array( 'timeout' => 5 ) );
339 $x_pingback_header = wp_remote_retrieve_header( $response, 'x-pingback' );
340 $pretty_permalinks = $x_pingback_header && $x_pingback_header === get_bloginfo( 'pingback_url' );
342 if ( $pretty_permalinks ) {
348 * If it makes it this far, pretty permalinks failed.
349 * Fallback to query-string permalinks.
351 $wp_rewrite->set_permalink_structure( '' );
352 $wp_rewrite->flush_rules( true );
357 if ( !function_exists('wp_new_blog_notification') ) :
359 * Notifies the site admin that the setup is complete.
361 * Sends an email with wp_mail to the new administrator that the site setup is complete,
362 * and provides them with a record of their login credentials.
366 * @param string $blog_title Site title.
367 * @param string $blog_url Site url.
368 * @param int $user_id User ID.
369 * @param string $password User's Password.
371 function wp_new_blog_notification($blog_title, $blog_url, $user_id, $password) {
372 $user = new WP_User( $user_id );
373 $email = $user->user_email;
374 $name = $user->user_login;
375 $login_url = wp_login_url();
376 $message = sprintf( __( "Your new WordPress site has been successfully set up at:
380 You can log in to the administrator account with the following information:
386 We hope you enjoy your new site. Thanks!
389 https://wordpress.org/
390 "), $blog_url, $name, $password, $login_url );
392 @wp_mail($email, __('New WordPress Site'), $message);
396 if ( !function_exists('wp_upgrade') ) :
398 * Runs WordPress Upgrade functions.
400 * Upgrades the database if needed during a site update.
404 * @global int $wp_current_db_version
405 * @global int $wp_db_version
406 * @global wpdb $wpdb WordPress database abstraction object.
408 function wp_upgrade() {
409 global $wp_current_db_version, $wp_db_version, $wpdb;
411 $wp_current_db_version = __get_option('db_version');
413 // We are up-to-date. Nothing to do.
414 if ( $wp_db_version == $wp_current_db_version )
417 if ( ! is_blog_installed() )
420 wp_check_mysql_version();
422 pre_schema_upgrade();
423 make_db_current_silent();
425 if ( is_multisite() && is_main_site() )
429 if ( is_multisite() ) {
430 if ( $wpdb->get_row( "SELECT blog_id FROM {$wpdb->blog_versions} WHERE blog_id = '{$wpdb->blogid}'" ) )
431 $wpdb->query( "UPDATE {$wpdb->blog_versions} SET db_version = '{$wp_db_version}' WHERE blog_id = '{$wpdb->blogid}'" );
433 $wpdb->query( "INSERT INTO {$wpdb->blog_versions} ( `blog_id` , `db_version` , `last_updated` ) VALUES ( '{$wpdb->blogid}', '{$wp_db_version}', NOW());" );
437 * Fires after a site is fully upgraded.
441 * @param int $wp_db_version The new $wp_db_version.
442 * @param int $wp_current_db_version The old (current) $wp_db_version.
444 do_action( 'wp_upgrade', $wp_db_version, $wp_current_db_version );
449 * Functions to be called in install and upgrade scripts.
451 * Contains conditional checks to determine which upgrade scripts to run,
452 * based on database version and WP version being updated-to.
457 * @global int $wp_current_db_version
458 * @global int $wp_db_version
460 function upgrade_all() {
461 global $wp_current_db_version, $wp_db_version;
462 $wp_current_db_version = __get_option('db_version');
464 // We are up-to-date. Nothing to do.
465 if ( $wp_db_version == $wp_current_db_version )
468 // If the version is not set in the DB, try to guess the version.
469 if ( empty($wp_current_db_version) ) {
470 $wp_current_db_version = 0;
472 // If the template option exists, we have 1.5.
473 $template = __get_option('template');
474 if ( !empty($template) )
475 $wp_current_db_version = 2541;
478 if ( $wp_current_db_version < 6039 )
479 upgrade_230_options_table();
483 if ( $wp_current_db_version < 2541 ) {
490 if ( $wp_current_db_version < 3308 )
493 if ( $wp_current_db_version < 4772 )
496 if ( $wp_current_db_version < 4351 )
499 if ( $wp_current_db_version < 5539 )
502 if ( $wp_current_db_version < 6124 )
503 upgrade_230_old_tables();
505 if ( $wp_current_db_version < 7499 )
508 if ( $wp_current_db_version < 7935 )
511 if ( $wp_current_db_version < 8201 )
514 if ( $wp_current_db_version < 8989 )
517 if ( $wp_current_db_version < 10360 )
520 if ( $wp_current_db_version < 11958 )
523 if ( $wp_current_db_version < 15260 )
526 if ( $wp_current_db_version < 19389 )
529 if ( $wp_current_db_version < 20080 )
532 if ( $wp_current_db_version < 22422 )
535 if ( $wp_current_db_version < 25824 )
538 if ( $wp_current_db_version < 26148 )
541 if ( $wp_current_db_version < 26691 )
544 if ( $wp_current_db_version < 29630 )
547 if ( $wp_current_db_version < 33055 )
550 if ( $wp_current_db_version < 33056 )
553 if ( $wp_current_db_version < 35700 )
556 if ( $wp_current_db_version < 36686 )
559 if ( $wp_current_db_version < 37965 )
562 maybe_disable_link_manager();
564 maybe_disable_automattic_widgets();
566 update_option( 'db_version', $wp_db_version );
567 update_option( 'db_upgraded', true );
571 * Execute changes made in WordPress 1.0.
576 * @global wpdb $wpdb WordPress database abstraction object.
578 function upgrade_100() {
581 // Get the title and ID of every post, post_name to check if it already has a value
582 $posts = $wpdb->get_results("SELECT ID, post_title, post_name FROM $wpdb->posts WHERE post_name = ''");
584 foreach ($posts as $post) {
585 if ('' == $post->post_name) {
586 $newtitle = sanitize_title($post->post_title);
587 $wpdb->query( $wpdb->prepare("UPDATE $wpdb->posts SET post_name = %s WHERE ID = %d", $newtitle, $post->ID) );
592 $categories = $wpdb->get_results("SELECT cat_ID, cat_name, category_nicename FROM $wpdb->categories");
593 foreach ($categories as $category) {
594 if ('' == $category->category_nicename) {
595 $newtitle = sanitize_title($category->cat_name);
596 $wpdb->update( $wpdb->categories, array('category_nicename' => $newtitle), array('cat_ID' => $category->cat_ID) );
600 $sql = "UPDATE $wpdb->options
601 SET option_value = REPLACE(option_value, 'wp-links/links-images/', 'wp-images/links/')
602 WHERE option_name LIKE %s
603 AND option_value LIKE %s";
604 $wpdb->query( $wpdb->prepare( $sql, $wpdb->esc_like( 'links_rating_image' ) . '%', $wpdb->esc_like( 'wp-links/links-images/' ) . '%' ) );
606 $done_ids = $wpdb->get_results("SELECT DISTINCT post_id FROM $wpdb->post2cat");
608 $done_posts = array();
609 foreach ($done_ids as $done_id) :
610 $done_posts[] = $done_id->post_id;
612 $catwhere = ' AND ID NOT IN (' . implode(',', $done_posts) . ')';
617 $allposts = $wpdb->get_results("SELECT ID, post_category FROM $wpdb->posts WHERE post_category != '0' $catwhere");
619 foreach ($allposts as $post) {
620 // Check to see if it's already been imported
621 $cat = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->post2cat WHERE post_id = %d AND category_id = %d", $post->ID, $post->post_category) );
622 if (!$cat && 0 != $post->post_category) { // If there's no result
623 $wpdb->insert( $wpdb->post2cat, array('post_id' => $post->ID, 'category_id' => $post->post_category) );
630 * Execute changes made in WordPress 1.0.1.
635 * @global wpdb $wpdb WordPress database abstraction object.
637 function upgrade_101() {
640 // Clean up indices, add a few
641 add_clean_index($wpdb->posts, 'post_name');
642 add_clean_index($wpdb->posts, 'post_status');
643 add_clean_index($wpdb->categories, 'category_nicename');
644 add_clean_index($wpdb->comments, 'comment_approved');
645 add_clean_index($wpdb->comments, 'comment_post_ID');
646 add_clean_index($wpdb->links , 'link_category');
647 add_clean_index($wpdb->links , 'link_visible');
651 * Execute changes made in WordPress 1.2.
656 * @global wpdb $wpdb WordPress database abstraction object.
658 function upgrade_110() {
661 // Set user_nicename.
662 $users = $wpdb->get_results("SELECT ID, user_nickname, user_nicename FROM $wpdb->users");
663 foreach ($users as $user) {
664 if ('' == $user->user_nicename) {
665 $newname = sanitize_title($user->user_nickname);
666 $wpdb->update( $wpdb->users, array('user_nicename' => $newname), array('ID' => $user->ID) );
670 $users = $wpdb->get_results("SELECT ID, user_pass from $wpdb->users");
671 foreach ($users as $row) {
672 if (!preg_match('/^[A-Fa-f0-9]{32}$/', $row->user_pass)) {
673 $wpdb->update( $wpdb->users, array('user_pass' => md5($row->user_pass)), array('ID' => $row->ID) );
677 // Get the GMT offset, we'll use that later on
678 $all_options = get_alloptions_110();
680 $time_difference = $all_options->time_difference;
682 $server_time = time()+date('Z');
683 $weblogger_time = $server_time + $time_difference * HOUR_IN_SECONDS;
686 $diff_gmt_server = ($gmt_time - $server_time) / HOUR_IN_SECONDS;
687 $diff_weblogger_server = ($weblogger_time - $server_time) / HOUR_IN_SECONDS;
688 $diff_gmt_weblogger = $diff_gmt_server - $diff_weblogger_server;
689 $gmt_offset = -$diff_gmt_weblogger;
691 // Add a gmt_offset option, with value $gmt_offset
692 add_option('gmt_offset', $gmt_offset);
694 // Check if we already set the GMT fields (if we did, then
695 // MAX(post_date_gmt) can't be '0000-00-00 00:00:00'
696 // <michel_v> I just slapped myself silly for not thinking about it earlier
697 $got_gmt_fields = ! ($wpdb->get_var("SELECT MAX(post_date_gmt) FROM $wpdb->posts") == '0000-00-00 00:00:00');
699 if (!$got_gmt_fields) {
701 // Add or subtract time to all dates, to get GMT dates
702 $add_hours = intval($diff_gmt_weblogger);
703 $add_minutes = intval(60 * ($diff_gmt_weblogger - $add_hours));
704 $wpdb->query("UPDATE $wpdb->posts SET post_date_gmt = DATE_ADD(post_date, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE)");
705 $wpdb->query("UPDATE $wpdb->posts SET post_modified = post_date");
706 $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'");
707 $wpdb->query("UPDATE $wpdb->comments SET comment_date_gmt = DATE_ADD(comment_date, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE)");
708 $wpdb->query("UPDATE $wpdb->users SET user_registered = DATE_ADD(user_registered, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE)");
714 * Execute changes made in WordPress 1.5.
719 * @global wpdb $wpdb WordPress database abstraction object.
721 function upgrade_130() {
724 // Remove extraneous backslashes.
725 $posts = $wpdb->get_results("SELECT ID, post_title, post_content, post_excerpt, guid, post_date, post_name, post_status, post_author FROM $wpdb->posts");
727 foreach ($posts as $post) {
728 $post_content = addslashes(deslash($post->post_content));
729 $post_title = addslashes(deslash($post->post_title));
730 $post_excerpt = addslashes(deslash($post->post_excerpt));
731 if ( empty($post->guid) )
732 $guid = get_permalink($post->ID);
736 $wpdb->update( $wpdb->posts, compact('post_title', 'post_content', 'post_excerpt', 'guid'), array('ID' => $post->ID) );
741 // Remove extraneous backslashes.
742 $comments = $wpdb->get_results("SELECT comment_ID, comment_author, comment_content FROM $wpdb->comments");
744 foreach ($comments as $comment) {
745 $comment_content = deslash($comment->comment_content);
746 $comment_author = deslash($comment->comment_author);
748 $wpdb->update($wpdb->comments, compact('comment_content', 'comment_author'), array('comment_ID' => $comment->comment_ID) );
752 // Remove extraneous backslashes.
753 $links = $wpdb->get_results("SELECT link_id, link_name, link_description FROM $wpdb->links");
755 foreach ($links as $link) {
756 $link_name = deslash($link->link_name);
757 $link_description = deslash($link->link_description);
759 $wpdb->update( $wpdb->links, compact('link_name', 'link_description'), array('link_id' => $link->link_id) );
763 $active_plugins = __get_option('active_plugins');
766 * If plugins are not stored in an array, they're stored in the old
767 * newline separated format. Convert to new format.
769 if ( !is_array( $active_plugins ) ) {
770 $active_plugins = explode("\n", trim($active_plugins));
771 update_option('active_plugins', $active_plugins);
775 $wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'optionvalues');
776 $wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'optiontypes');
777 $wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'optiongroups');
778 $wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'optiongroup_options');
780 // Update comments table to use comment_type
781 $wpdb->query("UPDATE $wpdb->comments SET comment_type='trackback', comment_content = REPLACE(comment_content, '<trackback />', '') WHERE comment_content LIKE '<trackback />%'");
782 $wpdb->query("UPDATE $wpdb->comments SET comment_type='pingback', comment_content = REPLACE(comment_content, '<pingback />', '') WHERE comment_content LIKE '<pingback />%'");
784 // Some versions have multiple duplicate option_name rows with the same values
785 $options = $wpdb->get_results("SELECT option_name, COUNT(option_name) AS dupes FROM `$wpdb->options` GROUP BY option_name");
786 foreach ( $options as $option ) {
787 if ( 1 != $option->dupes ) { // Could this be done in the query?
788 $limit = $option->dupes - 1;
789 $dupe_ids = $wpdb->get_col( $wpdb->prepare("SELECT option_id FROM $wpdb->options WHERE option_name = %s LIMIT %d", $option->option_name, $limit) );
791 $dupe_ids = join($dupe_ids, ',');
792 $wpdb->query("DELETE FROM $wpdb->options WHERE option_id IN ($dupe_ids)");
801 * Execute changes made in WordPress 2.0.
806 * @global wpdb $wpdb WordPress database abstraction object.
807 * @global int $wp_current_db_version
809 function upgrade_160() {
810 global $wpdb, $wp_current_db_version;
812 populate_roles_160();
814 $users = $wpdb->get_results("SELECT * FROM $wpdb->users");
815 foreach ( $users as $user ) :
816 if ( !empty( $user->user_firstname ) )
817 update_user_meta( $user->ID, 'first_name', wp_slash($user->user_firstname) );
818 if ( !empty( $user->user_lastname ) )
819 update_user_meta( $user->ID, 'last_name', wp_slash($user->user_lastname) );
820 if ( !empty( $user->user_nickname ) )
821 update_user_meta( $user->ID, 'nickname', wp_slash($user->user_nickname) );
822 if ( !empty( $user->user_level ) )
823 update_user_meta( $user->ID, $wpdb->prefix . 'user_level', $user->user_level );
824 if ( !empty( $user->user_icq ) )
825 update_user_meta( $user->ID, 'icq', wp_slash($user->user_icq) );
826 if ( !empty( $user->user_aim ) )
827 update_user_meta( $user->ID, 'aim', wp_slash($user->user_aim) );
828 if ( !empty( $user->user_msn ) )
829 update_user_meta( $user->ID, 'msn', wp_slash($user->user_msn) );
830 if ( !empty( $user->user_yim ) )
831 update_user_meta( $user->ID, 'yim', wp_slash($user->user_icq) );
832 if ( !empty( $user->user_description ) )
833 update_user_meta( $user->ID, 'description', wp_slash($user->user_description) );
835 if ( isset( $user->user_idmode ) ):
836 $idmode = $user->user_idmode;
837 if ($idmode == 'nickname') $id = $user->user_nickname;
838 if ($idmode == 'login') $id = $user->user_login;
839 if ($idmode == 'firstname') $id = $user->user_firstname;
840 if ($idmode == 'lastname') $id = $user->user_lastname;
841 if ($idmode == 'namefl') $id = $user->user_firstname.' '.$user->user_lastname;
842 if ($idmode == 'namelf') $id = $user->user_lastname.' '.$user->user_firstname;
843 if (!$idmode) $id = $user->user_nickname;
844 $wpdb->update( $wpdb->users, array('display_name' => $id), array('ID' => $user->ID) );
847 // FIXME: RESET_CAPS is temporary code to reset roles and caps if flag is set.
848 $caps = get_user_meta( $user->ID, $wpdb->prefix . 'capabilities');
849 if ( empty($caps) || defined('RESET_CAPS') ) {
850 $level = get_user_meta($user->ID, $wpdb->prefix . 'user_level', true);
851 $role = translate_level_to_role($level);
852 update_user_meta( $user->ID, $wpdb->prefix . 'capabilities', array($role => true) );
856 $old_user_fields = array( 'user_firstname', 'user_lastname', 'user_icq', 'user_aim', 'user_msn', 'user_yim', 'user_idmode', 'user_ip', 'user_domain', 'user_browser', 'user_description', 'user_nickname', 'user_level' );
857 $wpdb->hide_errors();
858 foreach ( $old_user_fields as $old )
859 $wpdb->query("ALTER TABLE $wpdb->users DROP $old");
860 $wpdb->show_errors();
862 // Populate comment_count field of posts table.
863 $comments = $wpdb->get_results( "SELECT comment_post_ID, COUNT(*) as c FROM $wpdb->comments WHERE comment_approved = '1' GROUP BY comment_post_ID" );
864 if ( is_array( $comments ) )
865 foreach ($comments as $comment)
866 $wpdb->update( $wpdb->posts, array('comment_count' => $comment->c), array('ID' => $comment->comment_post_ID) );
869 * Some alpha versions used a post status of object instead of attachment
870 * and put the mime type in post_type instead of post_mime_type.
872 if ( $wp_current_db_version > 2541 && $wp_current_db_version <= 3091 ) {
873 $objects = $wpdb->get_results("SELECT ID, post_type FROM $wpdb->posts WHERE post_status = 'object'");
874 foreach ($objects as $object) {
875 $wpdb->update( $wpdb->posts, array( 'post_status' => 'attachment',
876 'post_mime_type' => $object->post_type,
878 array( 'ID' => $object->ID ) );
880 $meta = get_post_meta($object->ID, 'imagedata', true);
881 if ( ! empty($meta['file']) )
882 update_attached_file( $object->ID, $meta['file'] );
888 * Execute changes made in WordPress 2.1.
893 * @global wpdb $wpdb WordPress database abstraction object.
894 * @global int $wp_current_db_version
896 function upgrade_210() {
897 global $wpdb, $wp_current_db_version;
899 if ( $wp_current_db_version < 3506 ) {
900 // Update status and type.
901 $posts = $wpdb->get_results("SELECT ID, post_status FROM $wpdb->posts");
903 if ( ! empty($posts) ) foreach ($posts as $post) {
904 $status = $post->post_status;
907 if ( 'static' == $status ) {
910 } elseif ( 'attachment' == $status ) {
912 $type = 'attachment';
915 $wpdb->query( $wpdb->prepare("UPDATE $wpdb->posts SET post_status = %s, post_type = %s WHERE ID = %d", $status, $type, $post->ID) );
919 if ( $wp_current_db_version < 3845 ) {
920 populate_roles_210();
923 if ( $wp_current_db_version < 3531 ) {
924 // Give future posts a post_status of future.
925 $now = gmdate('Y-m-d H:i:59');
926 $wpdb->query ("UPDATE $wpdb->posts SET post_status = 'future' WHERE post_status = 'publish' AND post_date_gmt > '$now'");
928 $posts = $wpdb->get_results("SELECT ID, post_date FROM $wpdb->posts WHERE post_status ='future'");
929 if ( !empty($posts) )
930 foreach ( $posts as $post )
931 wp_schedule_single_event(mysql2date('U', $post->post_date, false), 'publish_future_post', array($post->ID));
936 * Execute changes made in WordPress 2.3.
941 * @global wpdb $wpdb WordPress database abstraction object.
942 * @global int $wp_current_db_version
944 function upgrade_230() {
945 global $wp_current_db_version, $wpdb;
947 if ( $wp_current_db_version < 5200 ) {
948 populate_roles_230();
951 // Convert categories to terms.
954 $categories = $wpdb->get_results("SELECT * FROM $wpdb->categories ORDER BY cat_ID");
955 foreach ($categories as $category) {
956 $term_id = (int) $category->cat_ID;
957 $name = $category->cat_name;
958 $description = $category->category_description;
959 $slug = $category->category_nicename;
960 $parent = $category->category_parent;
963 // Associate terms with the same slug in a term group and make slugs unique.
964 if ( $exists = $wpdb->get_results( $wpdb->prepare("SELECT term_id, term_group FROM $wpdb->terms WHERE slug = %s", $slug) ) ) {
965 $term_group = $exists[0]->term_group;
966 $id = $exists[0]->term_id;
969 $alt_slug = $slug . "-$num";
971 $slug_check = $wpdb->get_var( $wpdb->prepare("SELECT slug FROM $wpdb->terms WHERE slug = %s", $alt_slug) );
972 } while ( $slug_check );
976 if ( empty( $term_group ) ) {
977 $term_group = $wpdb->get_var("SELECT MAX(term_group) FROM $wpdb->terms GROUP BY term_group") + 1;
978 $wpdb->query( $wpdb->prepare("UPDATE $wpdb->terms SET term_group = %d WHERE term_id = %d", $term_group, $id) );
982 $wpdb->query( $wpdb->prepare("INSERT INTO $wpdb->terms (term_id, name, slug, term_group) VALUES
983 (%d, %s, %s, %d)", $term_id, $name, $slug, $term_group) );
986 if ( !empty($category->category_count) ) {
987 $count = (int) $category->category_count;
988 $taxonomy = 'category';
989 $wpdb->query( $wpdb->prepare("INSERT INTO $wpdb->term_taxonomy (term_id, taxonomy, description, parent, count) VALUES ( %d, %s, %s, %d, %d)", $term_id, $taxonomy, $description, $parent, $count) );
990 $tt_ids[$term_id][$taxonomy] = (int) $wpdb->insert_id;
993 if ( !empty($category->link_count) ) {
994 $count = (int) $category->link_count;
995 $taxonomy = 'link_category';
996 $wpdb->query( $wpdb->prepare("INSERT INTO $wpdb->term_taxonomy (term_id, taxonomy, description, parent, count) VALUES ( %d, %s, %s, %d, %d)", $term_id, $taxonomy, $description, $parent, $count) );
997 $tt_ids[$term_id][$taxonomy] = (int) $wpdb->insert_id;
1000 if ( !empty($category->tag_count) ) {
1002 $count = (int) $category->tag_count;
1003 $taxonomy = 'post_tag';
1004 $wpdb->insert( $wpdb->term_taxonomy, compact('term_id', 'taxonomy', 'description', 'parent', 'count') );
1005 $tt_ids[$term_id][$taxonomy] = (int) $wpdb->insert_id;
1008 if ( empty($count) ) {
1010 $taxonomy = 'category';
1011 $wpdb->insert( $wpdb->term_taxonomy, compact('term_id', 'taxonomy', 'description', 'parent', 'count') );
1012 $tt_ids[$term_id][$taxonomy] = (int) $wpdb->insert_id;
1016 $select = 'post_id, category_id';
1018 $select .= ', rel_type';
1020 $posts = $wpdb->get_results("SELECT $select FROM $wpdb->post2cat GROUP BY post_id, category_id");
1021 foreach ( $posts as $post ) {
1022 $post_id = (int) $post->post_id;
1023 $term_id = (int) $post->category_id;
1024 $taxonomy = 'category';
1025 if ( !empty($post->rel_type) && 'tag' == $post->rel_type)
1027 $tt_id = $tt_ids[$term_id][$taxonomy];
1028 if ( empty($tt_id) )
1031 $wpdb->insert( $wpdb->term_relationships, array('object_id' => $post_id, 'term_taxonomy_id' => $tt_id) );
1034 // < 3570 we used linkcategories. >= 3570 we used categories and link2cat.
1035 if ( $wp_current_db_version < 3570 ) {
1037 * Create link_category terms for link categories. Create a map of link
1038 * cat IDs to link_category terms.
1040 $link_cat_id_map = array();
1041 $default_link_cat = 0;
1043 $link_cats = $wpdb->get_results("SELECT cat_id, cat_name FROM " . $wpdb->prefix . 'linkcategories');
1044 foreach ( $link_cats as $category) {
1045 $cat_id = (int) $category->cat_id;
1047 $name = wp_slash($category->cat_name);
1048 $slug = sanitize_title($name);
1051 // Associate terms with the same slug in a term group and make slugs unique.
1052 if ( $exists = $wpdb->get_results( $wpdb->prepare("SELECT term_id, term_group FROM $wpdb->terms WHERE slug = %s", $slug) ) ) {
1053 $term_group = $exists[0]->term_group;
1054 $term_id = $exists[0]->term_id;
1057 if ( empty($term_id) ) {
1058 $wpdb->insert( $wpdb->terms, compact('name', 'slug', 'term_group') );
1059 $term_id = (int) $wpdb->insert_id;
1062 $link_cat_id_map[$cat_id] = $term_id;
1063 $default_link_cat = $term_id;
1065 $wpdb->insert( $wpdb->term_taxonomy, array('term_id' => $term_id, 'taxonomy' => 'link_category', 'description' => '', 'parent' => 0, 'count' => 0) );
1066 $tt_ids[$term_id] = (int) $wpdb->insert_id;
1069 // Associate links to cats.
1070 $links = $wpdb->get_results("SELECT link_id, link_category FROM $wpdb->links");
1071 if ( !empty($links) ) foreach ( $links as $link ) {
1072 if ( 0 == $link->link_category )
1074 if ( ! isset($link_cat_id_map[$link->link_category]) )
1076 $term_id = $link_cat_id_map[$link->link_category];
1077 $tt_id = $tt_ids[$term_id];
1078 if ( empty($tt_id) )
1081 $wpdb->insert( $wpdb->term_relationships, array('object_id' => $link->link_id, 'term_taxonomy_id' => $tt_id) );
1084 // Set default to the last category we grabbed during the upgrade loop.
1085 update_option('default_link_category', $default_link_cat);
1087 $links = $wpdb->get_results("SELECT link_id, category_id FROM $wpdb->link2cat GROUP BY link_id, category_id");
1088 foreach ( $links as $link ) {
1089 $link_id = (int) $link->link_id;
1090 $term_id = (int) $link->category_id;
1091 $taxonomy = 'link_category';
1092 $tt_id = $tt_ids[$term_id][$taxonomy];
1093 if ( empty($tt_id) )
1095 $wpdb->insert( $wpdb->term_relationships, array('object_id' => $link_id, 'term_taxonomy_id' => $tt_id) );
1099 if ( $wp_current_db_version < 4772 ) {
1100 // Obsolete linkcategories table
1101 $wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'linkcategories');
1104 // Recalculate all counts
1105 $terms = $wpdb->get_results("SELECT term_taxonomy_id, taxonomy FROM $wpdb->term_taxonomy");
1106 foreach ( (array) $terms as $term ) {
1107 if ( ('post_tag' == $term->taxonomy) || ('category' == $term->taxonomy) )
1108 $count = $wpdb->get_var( $wpdb->prepare("SELECT COUNT(*) FROM $wpdb->term_relationships, $wpdb->posts WHERE $wpdb->posts.ID = $wpdb->term_relationships.object_id AND post_status = 'publish' AND post_type = 'post' AND term_taxonomy_id = %d", $term->term_taxonomy_id) );
1110 $count = $wpdb->get_var( $wpdb->prepare("SELECT COUNT(*) FROM $wpdb->term_relationships WHERE term_taxonomy_id = %d", $term->term_taxonomy_id) );
1111 $wpdb->update( $wpdb->term_taxonomy, array('count' => $count), array('term_taxonomy_id' => $term->term_taxonomy_id) );
1116 * Remove old options from the database.
1121 * @global wpdb $wpdb WordPress database abstraction object.
1123 function upgrade_230_options_table() {
1125 $old_options_fields = array( 'option_can_override', 'option_type', 'option_width', 'option_height', 'option_description', 'option_admin_level' );
1126 $wpdb->hide_errors();
1127 foreach ( $old_options_fields as $old )
1128 $wpdb->query("ALTER TABLE $wpdb->options DROP $old");
1129 $wpdb->show_errors();
1133 * Remove old categories, link2cat, and post2cat database tables.
1138 * @global wpdb $wpdb WordPress database abstraction object.
1140 function upgrade_230_old_tables() {
1142 $wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'categories');
1143 $wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'link2cat');
1144 $wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'post2cat');
1148 * Upgrade old slugs made in version 2.2.
1153 * @global wpdb $wpdb WordPress database abstraction object.
1155 function upgrade_old_slugs() {
1156 // Upgrade people who were using the Redirect Old Slugs plugin.
1158 $wpdb->query("UPDATE $wpdb->postmeta SET meta_key = '_wp_old_slug' WHERE meta_key = 'old_slug'");
1162 * Execute changes made in WordPress 2.5.0.
1167 * @global int $wp_current_db_version
1169 function upgrade_250() {
1170 global $wp_current_db_version;
1172 if ( $wp_current_db_version < 6689 ) {
1173 populate_roles_250();
1179 * Execute changes made in WordPress 2.5.2.
1184 * @global wpdb $wpdb WordPress database abstraction object.
1186 function upgrade_252() {
1189 $wpdb->query("UPDATE $wpdb->users SET user_activation_key = ''");
1193 * Execute changes made in WordPress 2.6.
1198 * @global int $wp_current_db_version
1200 function upgrade_260() {
1201 global $wp_current_db_version;
1203 if ( $wp_current_db_version < 8000 )
1204 populate_roles_260();
1208 * Execute changes made in WordPress 2.7.
1213 * @global wpdb $wpdb WordPress database abstraction object.
1214 * @global int $wp_current_db_version
1216 function upgrade_270() {
1217 global $wpdb, $wp_current_db_version;
1219 if ( $wp_current_db_version < 8980 )
1220 populate_roles_270();
1222 // Update post_date for unpublished posts with empty timestamp
1223 if ( $wp_current_db_version < 8921 )
1224 $wpdb->query( "UPDATE $wpdb->posts SET post_date = post_modified WHERE post_date = '0000-00-00 00:00:00'" );
1228 * Execute changes made in WordPress 2.8.
1233 * @global int $wp_current_db_version
1234 * @global wpdb $wpdb WordPress database abstraction object.
1236 function upgrade_280() {
1237 global $wp_current_db_version, $wpdb;
1239 if ( $wp_current_db_version < 10360 )
1240 populate_roles_280();
1241 if ( is_multisite() ) {
1243 while( $rows = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options ORDER BY option_id LIMIT $start, 20" ) ) {
1244 foreach ( $rows as $row ) {
1245 $value = $row->option_value;
1246 if ( !@unserialize( $value ) )
1247 $value = stripslashes( $value );
1248 if ( $value !== $row->option_value ) {
1249 update_option( $row->option_name, $value );
1254 refresh_blog_details( $wpdb->blogid );
1259 * Execute changes made in WordPress 2.9.
1264 * @global int $wp_current_db_version
1266 function upgrade_290() {
1267 global $wp_current_db_version;
1269 if ( $wp_current_db_version < 11958 ) {
1270 // Previously, setting depth to 1 would redundantly disable threading, but now 2 is the minimum depth to avoid confusion
1271 if ( get_option( 'thread_comments_depth' ) == '1' ) {
1272 update_option( 'thread_comments_depth', 2 );
1273 update_option( 'thread_comments', 0 );
1279 * Execute changes made in WordPress 3.0.
1284 * @global int $wp_current_db_version
1285 * @global wpdb $wpdb WordPress database abstraction object.
1287 function upgrade_300() {
1288 global $wp_current_db_version, $wpdb;
1290 if ( $wp_current_db_version < 15093 )
1291 populate_roles_300();
1293 if ( $wp_current_db_version < 14139 && is_multisite() && is_main_site() && ! defined( 'MULTISITE' ) && get_site_option( 'siteurl' ) === false )
1294 add_site_option( 'siteurl', '' );
1296 // 3.0 screen options key name changes.
1297 if ( wp_should_upgrade_global_tables() ) {
1298 $sql = "DELETE FROM $wpdb->usermeta
1299 WHERE meta_key LIKE %s
1305 OR meta_key = 'manageedittagscolumnshidden'
1306 OR meta_key = 'managecategoriescolumnshidden'
1307 OR meta_key = 'manageedit-tagscolumnshidden'
1308 OR meta_key = 'manageeditcolumnshidden'
1309 OR meta_key = 'categories_per_page'
1310 OR meta_key = 'edit_tags_per_page'";
1311 $prefix = $wpdb->esc_like( $wpdb->base_prefix );
1312 $wpdb->query( $wpdb->prepare( $sql,
1313 $prefix . '%' . $wpdb->esc_like( 'meta-box-hidden' ) . '%',
1314 $prefix . '%' . $wpdb->esc_like( 'closedpostboxes' ) . '%',
1315 $prefix . '%' . $wpdb->esc_like( 'manage-' ) . '%' . $wpdb->esc_like( '-columns-hidden' ) . '%',
1316 $prefix . '%' . $wpdb->esc_like( 'meta-box-order' ) . '%',
1317 $prefix . '%' . $wpdb->esc_like( 'metaboxorder' ) . '%',
1318 $prefix . '%' . $wpdb->esc_like( 'screen_layout' ) . '%'
1325 * Execute changes made in WordPress 3.3.
1330 * @global int $wp_current_db_version
1331 * @global wpdb $wpdb
1332 * @global array $wp_registered_widgets
1333 * @global array $sidebars_widgets
1335 function upgrade_330() {
1336 global $wp_current_db_version, $wpdb, $wp_registered_widgets, $sidebars_widgets;
1338 if ( $wp_current_db_version < 19061 && wp_should_upgrade_global_tables() ) {
1339 $wpdb->query( "DELETE FROM $wpdb->usermeta WHERE meta_key IN ('show_admin_bar_admin', 'plugins_last_view')" );
1342 if ( $wp_current_db_version >= 11548 )
1345 $sidebars_widgets = get_option( 'sidebars_widgets', array() );
1346 $_sidebars_widgets = array();
1348 if ( isset($sidebars_widgets['wp_inactive_widgets']) || empty($sidebars_widgets) )
1349 $sidebars_widgets['array_version'] = 3;
1350 elseif ( !isset($sidebars_widgets['array_version']) )
1351 $sidebars_widgets['array_version'] = 1;
1353 switch ( $sidebars_widgets['array_version'] ) {
1355 foreach ( (array) $sidebars_widgets as $index => $sidebar )
1356 if ( is_array($sidebar) )
1357 foreach ( (array) $sidebar as $i => $name ) {
1358 $id = strtolower($name);
1359 if ( isset($wp_registered_widgets[$id]) ) {
1360 $_sidebars_widgets[$index][$i] = $id;
1363 $id = sanitize_title($name);
1364 if ( isset($wp_registered_widgets[$id]) ) {
1365 $_sidebars_widgets[$index][$i] = $id;
1371 foreach ( $wp_registered_widgets as $widget_id => $widget ) {
1372 if ( strtolower($widget['name']) == strtolower($name) ) {
1373 $_sidebars_widgets[$index][$i] = $widget['id'];
1376 } elseif ( sanitize_title($widget['name']) == sanitize_title($name) ) {
1377 $_sidebars_widgets[$index][$i] = $widget['id'];
1386 unset($_sidebars_widgets[$index][$i]);
1388 $_sidebars_widgets['array_version'] = 2;
1389 $sidebars_widgets = $_sidebars_widgets;
1390 unset($_sidebars_widgets);
1393 $sidebars_widgets = retrieve_widgets();
1394 $sidebars_widgets['array_version'] = 3;
1395 update_option( 'sidebars_widgets', $sidebars_widgets );
1400 * Execute changes made in WordPress 3.4.
1405 * @global int $wp_current_db_version
1406 * @global wpdb $wpdb
1408 function upgrade_340() {
1409 global $wp_current_db_version, $wpdb;
1411 if ( $wp_current_db_version < 19798 ) {
1412 $wpdb->hide_errors();
1413 $wpdb->query( "ALTER TABLE $wpdb->options DROP COLUMN blog_id" );
1414 $wpdb->show_errors();
1417 if ( $wp_current_db_version < 19799 ) {
1418 $wpdb->hide_errors();
1419 $wpdb->query("ALTER TABLE $wpdb->comments DROP INDEX comment_approved");
1420 $wpdb->show_errors();
1423 if ( $wp_current_db_version < 20022 && wp_should_upgrade_global_tables() ) {
1424 $wpdb->query( "DELETE FROM $wpdb->usermeta WHERE meta_key = 'themes_last_view'" );
1427 if ( $wp_current_db_version < 20080 ) {
1428 if ( 'yes' == $wpdb->get_var( "SELECT autoload FROM $wpdb->options WHERE option_name = 'uninstall_plugins'" ) ) {
1429 $uninstall_plugins = get_option( 'uninstall_plugins' );
1430 delete_option( 'uninstall_plugins' );
1431 add_option( 'uninstall_plugins', $uninstall_plugins, null, 'no' );
1437 * Execute changes made in WordPress 3.5.
1442 * @global int $wp_current_db_version
1443 * @global wpdb $wpdb
1445 function upgrade_350() {
1446 global $wp_current_db_version, $wpdb;
1448 if ( $wp_current_db_version < 22006 && $wpdb->get_var( "SELECT link_id FROM $wpdb->links LIMIT 1" ) )
1449 update_option( 'link_manager_enabled', 1 ); // Previously set to 0 by populate_options()
1451 if ( $wp_current_db_version < 21811 && wp_should_upgrade_global_tables() ) {
1452 $meta_keys = array();
1453 foreach ( array_merge( get_post_types(), get_taxonomies() ) as $name ) {
1454 if ( false !== strpos( $name, '-' ) )
1455 $meta_keys[] = 'edit_' . str_replace( '-', '_', $name ) . '_per_page';
1458 $meta_keys = implode( "', '", $meta_keys );
1459 $wpdb->query( "DELETE FROM $wpdb->usermeta WHERE meta_key IN ('$meta_keys')" );
1463 if ( $wp_current_db_version < 22422 && $term = get_term_by( 'slug', 'post-format-standard', 'post_format' ) )
1464 wp_delete_term( $term->term_id, 'post_format' );
1468 * Execute changes made in WordPress 3.7.
1473 * @global int $wp_current_db_version
1475 function upgrade_370() {
1476 global $wp_current_db_version;
1477 if ( $wp_current_db_version < 25824 )
1478 wp_clear_scheduled_hook( 'wp_auto_updates_maybe_update' );
1482 * Execute changes made in WordPress 3.7.2.
1488 * @global int $wp_current_db_version
1490 function upgrade_372() {
1491 global $wp_current_db_version;
1492 if ( $wp_current_db_version < 26148 )
1493 wp_clear_scheduled_hook( 'wp_maybe_auto_update' );
1497 * Execute changes made in WordPress 3.8.0.
1502 * @global int $wp_current_db_version
1504 function upgrade_380() {
1505 global $wp_current_db_version;
1506 if ( $wp_current_db_version < 26691 ) {
1507 deactivate_plugins( array( 'mp6/mp6.php' ), true );
1512 * Execute changes made in WordPress 4.0.0.
1517 * @global int $wp_current_db_version
1519 function upgrade_400() {
1520 global $wp_current_db_version;
1521 if ( $wp_current_db_version < 29630 ) {
1522 if ( ! is_multisite() && false === get_option( 'WPLANG' ) ) {
1523 if ( defined( 'WPLANG' ) && ( '' !== WPLANG ) && in_array( WPLANG, get_available_languages() ) ) {
1524 update_option( 'WPLANG', WPLANG );
1526 update_option( 'WPLANG', '' );
1533 * Execute changes made in WordPress 4.2.0.
1538 * @global int $wp_current_db_version
1539 * @global wpdb $wpdb
1541 function upgrade_420() {}
1544 * Executes changes made in WordPress 4.3.0.
1549 * @global int $wp_current_db_version Current version.
1550 * @global wpdb $wpdb WordPress database abstraction object.
1552 function upgrade_430() {
1553 global $wp_current_db_version, $wpdb;
1555 if ( $wp_current_db_version < 32364 ) {
1556 upgrade_430_fix_comments();
1559 // Shared terms are split in a separate process.
1560 if ( $wp_current_db_version < 32814 ) {
1561 update_option( 'finished_splitting_shared_terms', 0 );
1562 wp_schedule_single_event( time() + ( 1 * MINUTE_IN_SECONDS ), 'wp_split_shared_term_batch' );
1565 if ( $wp_current_db_version < 33055 && 'utf8mb4' === $wpdb->charset ) {
1566 if ( is_multisite() ) {
1567 $tables = $wpdb->tables( 'blog' );
1569 $tables = $wpdb->tables( 'all' );
1570 if ( ! wp_should_upgrade_global_tables() ) {
1571 $global_tables = $wpdb->tables( 'global' );
1572 $tables = array_diff_assoc( $tables, $global_tables );
1576 foreach ( $tables as $table ) {
1577 maybe_convert_table_to_utf8mb4( $table );
1583 * Executes comments changes made in WordPress 4.3.0.
1588 * @global int $wp_current_db_version Current version.
1589 * @global wpdb $wpdb WordPress database abstraction object.
1591 function upgrade_430_fix_comments() {
1592 global $wp_current_db_version, $wpdb;
1594 $content_length = $wpdb->get_col_length( $wpdb->comments, 'comment_content' );
1596 if ( is_wp_error( $content_length ) ) {
1600 if ( false === $content_length ) {
1601 $content_length = array(
1605 } elseif ( ! is_array( $content_length ) ) {
1606 $length = (int) $content_length > 0 ? (int) $content_length : 65535;
1607 $content_length = array(
1613 if ( 'byte' !== $content_length['type'] || 0 === $content_length['length'] ) {
1614 // Sites with malformed DB schemas are on their own.
1618 $allowed_length = intval( $content_length['length'] ) - 10;
1620 $comments = $wpdb->get_results(
1621 "SELECT `comment_ID` FROM `{$wpdb->comments}`
1622 WHERE `comment_date_gmt` > '2015-04-26'
1623 AND LENGTH( `comment_content` ) >= {$allowed_length}
1624 AND ( `comment_content` LIKE '%<%' OR `comment_content` LIKE '%>%' )"
1627 foreach ( $comments as $comment ) {
1628 wp_delete_comment( $comment->comment_ID, true );
1633 * Executes changes made in WordPress 4.3.1.
1638 function upgrade_431() {
1639 // Fix incorrect cron entries for term splitting
1640 $cron_array = _get_cron_array();
1641 if ( isset( $cron_array['wp_batch_split_terms'] ) ) {
1642 unset( $cron_array['wp_batch_split_terms'] );
1643 _set_cron_array( $cron_array );
1648 * Executes changes made in WordPress 4.4.0.
1653 * @global int $wp_current_db_version Current version.
1654 * @global wpdb $wpdb WordPress database abstraction object.
1656 function upgrade_440() {
1657 global $wp_current_db_version, $wpdb;
1659 if ( $wp_current_db_version < 34030 ) {
1660 $wpdb->query( "ALTER TABLE {$wpdb->options} MODIFY option_name VARCHAR(191)" );
1663 // Remove the unused 'add_users' role.
1664 $roles = wp_roles();
1665 foreach ( $roles->role_objects as $role ) {
1666 if ( $role->has_cap( 'add_users' ) ) {
1667 $role->remove_cap( 'add_users' );
1673 * Executes changes made in WordPress 4.5.0.
1678 * @global int $wp_current_db_version Current database version.
1679 * @global wpdb $wpdb WordPress database abstraction object.
1681 function upgrade_450() {
1682 global $wp_current_db_version, $wpdb;
1684 if ( $wp_current_db_version < 36180 ) {
1685 wp_clear_scheduled_hook( 'wp_maybe_auto_update' );
1688 // Remove unused email confirmation options, moved to usermeta.
1689 if ( $wp_current_db_version < 36679 && is_multisite() ) {
1690 $wpdb->query( "DELETE FROM $wpdb->options WHERE option_name REGEXP '^[0-9]+_new_email$'" );
1693 // Remove unused user setting for wpLink.
1694 delete_user_setting( 'wplink' );
1698 * Executes changes made in WordPress 4.6.0.
1703 * @global int $wp_current_db_version Current database version.
1705 function upgrade_460() {
1706 global $wp_current_db_version;
1708 // Remove unused post meta.
1709 if ( $wp_current_db_version < 37854 ) {
1710 delete_post_meta_by_key( '_post_restored_from' );
1713 // Remove plugins with callback as an array object/method as the uninstall hook, see #13786.
1714 if ( $wp_current_db_version < 37965 ) {
1715 $uninstall_plugins = get_option( 'uninstall_plugins', array() );
1717 if ( ! empty( $uninstall_plugins ) ) {
1718 foreach ( $uninstall_plugins as $basename => $callback ) {
1719 if ( is_array( $callback ) && is_object( $callback[0] ) ) {
1720 unset( $uninstall_plugins[ $basename ] );
1724 update_option( 'uninstall_plugins', $uninstall_plugins );
1730 * Executes network-level upgrade routines.
1734 * @global int $wp_current_db_version
1735 * @global wpdb $wpdb
1737 function upgrade_network() {
1738 global $wp_current_db_version, $wpdb;
1741 if ( is_main_network() ) {
1743 * Deletes all expired transients. The multi-table delete syntax is used
1744 * to delete the transient record from table a, and the corresponding
1745 * transient_timeout record from table b.
1748 $sql = "DELETE a, b FROM $wpdb->sitemeta a, $wpdb->sitemeta b
1749 WHERE a.meta_key LIKE %s
1750 AND a.meta_key NOT LIKE %s
1751 AND b.meta_key = CONCAT( '_site_transient_timeout_', SUBSTRING( a.meta_key, 17 ) )
1752 AND b.meta_value < %d";
1753 $wpdb->query( $wpdb->prepare( $sql, $wpdb->esc_like( '_site_transient_' ) . '%', $wpdb->esc_like ( '_site_transient_timeout_' ) . '%', $time ) );
1757 if ( $wp_current_db_version < 11549 ) {
1758 $wpmu_sitewide_plugins = get_site_option( 'wpmu_sitewide_plugins' );
1759 $active_sitewide_plugins = get_site_option( 'active_sitewide_plugins' );
1760 if ( $wpmu_sitewide_plugins ) {
1761 if ( !$active_sitewide_plugins )
1762 $sitewide_plugins = (array) $wpmu_sitewide_plugins;
1764 $sitewide_plugins = array_merge( (array) $active_sitewide_plugins, (array) $wpmu_sitewide_plugins );
1766 update_site_option( 'active_sitewide_plugins', $sitewide_plugins );
1768 delete_site_option( 'wpmu_sitewide_plugins' );
1769 delete_site_option( 'deactivated_sitewide_plugins' );
1772 while( $rows = $wpdb->get_results( "SELECT meta_key, meta_value FROM {$wpdb->sitemeta} ORDER BY meta_id LIMIT $start, 20" ) ) {
1773 foreach ( $rows as $row ) {
1774 $value = $row->meta_value;
1775 if ( !@unserialize( $value ) )
1776 $value = stripslashes( $value );
1777 if ( $value !== $row->meta_value ) {
1778 update_site_option( $row->meta_key, $value );
1786 if ( $wp_current_db_version < 13576 )
1787 update_site_option( 'global_terms_enabled', '1' );
1790 if ( $wp_current_db_version < 19390 )
1791 update_site_option( 'initial_db_version', $wp_current_db_version );
1793 if ( $wp_current_db_version < 19470 ) {
1794 if ( false === get_site_option( 'active_sitewide_plugins' ) )
1795 update_site_option( 'active_sitewide_plugins', array() );
1799 if ( $wp_current_db_version < 20148 ) {
1800 // 'allowedthemes' keys things by stylesheet. 'allowed_themes' keyed things by name.
1801 $allowedthemes = get_site_option( 'allowedthemes' );
1802 $allowed_themes = get_site_option( 'allowed_themes' );
1803 if ( false === $allowedthemes && is_array( $allowed_themes ) && $allowed_themes ) {
1804 $converted = array();
1805 $themes = wp_get_themes();
1806 foreach ( $themes as $stylesheet => $theme_data ) {
1807 if ( isset( $allowed_themes[ $theme_data->get('Name') ] ) )
1808 $converted[ $stylesheet ] = true;
1810 update_site_option( 'allowedthemes', $converted );
1811 delete_site_option( 'allowed_themes' );
1816 if ( $wp_current_db_version < 21823 )
1817 update_site_option( 'ms_files_rewriting', '1' );
1820 if ( $wp_current_db_version < 24448 ) {
1821 $illegal_names = get_site_option( 'illegal_names' );
1822 if ( is_array( $illegal_names ) && count( $illegal_names ) === 1 ) {
1823 $illegal_name = reset( $illegal_names );
1824 $illegal_names = explode( ' ', $illegal_name );
1825 update_site_option( 'illegal_names', $illegal_names );
1830 if ( $wp_current_db_version < 31351 && $wpdb->charset === 'utf8mb4' ) {
1831 if ( wp_should_upgrade_global_tables() ) {
1832 $wpdb->query( "ALTER TABLE $wpdb->usermeta DROP INDEX meta_key, ADD INDEX meta_key(meta_key(191))" );
1833 $wpdb->query( "ALTER TABLE $wpdb->site DROP INDEX domain, ADD INDEX domain(domain(140),path(51))" );
1834 $wpdb->query( "ALTER TABLE $wpdb->sitemeta DROP INDEX meta_key, ADD INDEX meta_key(meta_key(191))" );
1835 $wpdb->query( "ALTER TABLE $wpdb->signups DROP INDEX domain_path, ADD INDEX domain_path(domain(140),path(51))" );
1837 $tables = $wpdb->tables( 'global' );
1839 // sitecategories may not exist.
1840 if ( ! $wpdb->get_var( "SHOW TABLES LIKE '{$tables['sitecategories']}'" ) ) {
1841 unset( $tables['sitecategories'] );
1844 foreach ( $tables as $table ) {
1845 maybe_convert_table_to_utf8mb4( $table );
1851 if ( $wp_current_db_version < 33055 && 'utf8mb4' === $wpdb->charset ) {
1852 if ( wp_should_upgrade_global_tables() ) {
1854 $indexes = $wpdb->get_results( "SHOW INDEXES FROM $wpdb->signups" );
1855 foreach ( $indexes as $index ) {
1856 if ( 'domain_path' == $index->Key_name && 'domain' == $index->Column_name && 140 != $index->Sub_part ) {
1863 $wpdb->query( "ALTER TABLE $wpdb->signups DROP INDEX domain_path, ADD INDEX domain_path(domain(140),path(51))" );
1866 $tables = $wpdb->tables( 'global' );
1868 // sitecategories may not exist.
1869 if ( ! $wpdb->get_var( "SHOW TABLES LIKE '{$tables['sitecategories']}'" ) ) {
1870 unset( $tables['sitecategories'] );
1873 foreach ( $tables as $table ) {
1874 maybe_convert_table_to_utf8mb4( $table );
1881 // General functions we use to actually do stuff
1885 * Creates a table in the database if it doesn't already exist.
1887 * This method checks for an existing database and creates a new one if it's not
1888 * already present. It doesn't rely on MySQL's "IF NOT EXISTS" statement, but chooses
1889 * to query all tables first and then run the SQL statement creating the table.
1893 * @global wpdb $wpdb
1895 * @param string $table_name Database table name to create.
1896 * @param string $create_ddl SQL statement to create table.
1897 * @return bool If table already exists or was created by function.
1899 function maybe_create_table($table_name, $create_ddl) {
1902 $query = $wpdb->prepare( "SHOW TABLES LIKE %s", $wpdb->esc_like( $table_name ) );
1904 if ( $wpdb->get_var( $query ) == $table_name ) {
1908 // Didn't find it try to create it..
1909 $wpdb->query($create_ddl);
1911 // We cannot directly tell that whether this succeeded!
1912 if ( $wpdb->get_var( $query ) == $table_name ) {
1919 * Drops a specified index from a table.
1923 * @global wpdb $wpdb
1925 * @param string $table Database table name.
1926 * @param string $index Index name to drop.
1927 * @return true True, when finished.
1929 function drop_index($table, $index) {
1931 $wpdb->hide_errors();
1932 $wpdb->query("ALTER TABLE `$table` DROP INDEX `$index`");
1933 // Now we need to take out all the extra ones we may have created
1934 for ($i = 0; $i < 25; $i++) {
1935 $wpdb->query("ALTER TABLE `$table` DROP INDEX `{$index}_$i`");
1937 $wpdb->show_errors();
1942 * Adds an index to a specified table.
1946 * @global wpdb $wpdb
1948 * @param string $table Database table name.
1949 * @param string $index Database table index column.
1950 * @return true True, when done with execution.
1952 function add_clean_index($table, $index) {
1954 drop_index($table, $index);
1955 $wpdb->query("ALTER TABLE `$table` ADD INDEX ( `$index` )");
1960 * Adds column to a database table if it doesn't already exist.
1964 * @global wpdb $wpdb
1966 * @param string $table_name The table name to modify.
1967 * @param string $column_name The column name to add to the table.
1968 * @param string $create_ddl The SQL statement used to add the column.
1969 * @return bool True if already exists or on successful completion, false on error.
1971 function maybe_add_column($table_name, $column_name, $create_ddl) {
1973 foreach ($wpdb->get_col("DESC $table_name", 0) as $column ) {
1974 if ($column == $column_name) {
1979 // Didn't find it try to create it.
1980 $wpdb->query($create_ddl);
1982 // We cannot directly tell that whether this succeeded!
1983 foreach ($wpdb->get_col("DESC $table_name", 0) as $column ) {
1984 if ($column == $column_name) {
1992 * If a table only contains utf8 or utf8mb4 columns, convert it to utf8mb4.
1996 * @global wpdb $wpdb
1998 * @param string $table The table to convert.
1999 * @return bool true if the table was converted, false if it wasn't.
2001 function maybe_convert_table_to_utf8mb4( $table ) {
2004 $results = $wpdb->get_results( "SHOW FULL COLUMNS FROM `$table`" );
2009 foreach ( $results as $column ) {
2010 if ( $column->Collation ) {
2011 list( $charset ) = explode( '_', $column->Collation );
2012 $charset = strtolower( $charset );
2013 if ( 'utf8' !== $charset && 'utf8mb4' !== $charset ) {
2014 // Don't upgrade tables that have non-utf8 columns.
2020 $table_details = $wpdb->get_row( "SHOW TABLE STATUS LIKE '$table'" );
2021 if ( ! $table_details ) {
2025 list( $table_charset ) = explode( '_', $table_details->Collation );
2026 $table_charset = strtolower( $table_charset );
2027 if ( 'utf8mb4' === $table_charset ) {
2031 return $wpdb->query( "ALTER TABLE $table CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci" );
2035 * Retrieve all options as it was for 1.2.
2039 * @global wpdb $wpdb
2041 * @return stdClass List of options.
2043 function get_alloptions_110() {
2045 $all_options = new stdClass;
2046 if ( $options = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options" ) ) {
2047 foreach ( $options as $option ) {
2048 if ( 'siteurl' == $option->option_name || 'home' == $option->option_name || 'category_base' == $option->option_name )
2049 $option->option_value = untrailingslashit( $option->option_value );
2050 $all_options->{$option->option_name} = stripslashes( $option->option_value );
2053 return $all_options;
2057 * Utility version of get_option that is private to install/upgrade.
2063 * @global wpdb $wpdb
2065 * @param string $setting Option name.
2068 function __get_option($setting) {
2071 if ( $setting == 'home' && defined( 'WP_HOME' ) )
2072 return untrailingslashit( WP_HOME );
2074 if ( $setting == 'siteurl' && defined( 'WP_SITEURL' ) )
2075 return untrailingslashit( WP_SITEURL );
2077 $option = $wpdb->get_var( $wpdb->prepare("SELECT option_value FROM $wpdb->options WHERE option_name = %s", $setting ) );
2079 if ( 'home' == $setting && '' == $option )
2080 return __get_option( 'siteurl' );
2082 if ( 'siteurl' == $setting || 'home' == $setting || 'category_base' == $setting || 'tag_base' == $setting )
2083 $option = untrailingslashit( $option );
2085 return maybe_unserialize( $option );
2089 * Filters for content to remove unnecessary slashes.
2093 * @param string $content The content to modify.
2094 * @return string The de-slashed content.
2096 function deslash($content) {
2097 // Note: \\\ inside a regex denotes a single backslash.
2100 * Replace one or more backslashes followed by a single quote with
2103 $content = preg_replace("/\\\+'/", "'", $content);
2106 * Replace one or more backslashes followed by a double quote with
2109 $content = preg_replace('/\\\+"/', '"', $content);
2111 // Replace one or more backslashes with one backslash.
2112 $content = preg_replace("/\\\+/", "\\", $content);
2118 * Modifies the database based on specified SQL statements.
2120 * Useful for creating new tables and updating existing tables to a new structure.
2124 * @global wpdb $wpdb
2126 * @param string|array $queries Optional. The query to run. Can be multiple queries
2127 * in an array, or a string of queries separated by
2128 * semicolons. Default empty.
2129 * @param bool $execute Optional. Whether or not to execute the query right away.
2131 * @return array Strings containing the results of the various update queries.
2133 function dbDelta( $queries = '', $execute = true ) {
2136 if ( in_array( $queries, array( '', 'all', 'blog', 'global', 'ms_global' ), true ) )
2137 $queries = wp_get_db_schema( $queries );
2139 // Separate individual queries into an array
2140 if ( !is_array($queries) ) {
2141 $queries = explode( ';', $queries );
2142 $queries = array_filter( $queries );
2146 * Filters the dbDelta SQL queries.
2150 * @param array $queries An array of dbDelta SQL queries.
2152 $queries = apply_filters( 'dbdelta_queries', $queries );
2154 $cqueries = array(); // Creation Queries
2155 $iqueries = array(); // Insertion Queries
2156 $for_update = array();
2158 // Create a tablename index for an array ($cqueries) of queries
2159 foreach ($queries as $qry) {
2160 if ( preg_match( "|CREATE TABLE ([^ ]*)|", $qry, $matches ) ) {
2161 $cqueries[ trim( $matches[1], '`' ) ] = $qry;
2162 $for_update[$matches[1]] = 'Created table '.$matches[1];
2163 } elseif ( preg_match( "|CREATE DATABASE ([^ ]*)|", $qry, $matches ) ) {
2164 array_unshift( $cqueries, $qry );
2165 } elseif ( preg_match( "|INSERT INTO ([^ ]*)|", $qry, $matches ) ) {
2167 } elseif ( preg_match( "|UPDATE ([^ ]*)|", $qry, $matches ) ) {
2170 // Unrecognized query type
2175 * Filters the dbDelta SQL queries for creating tables and/or databases.
2177 * Queries filterable via this hook contain "CREATE TABLE" or "CREATE DATABASE".
2181 * @param array $cqueries An array of dbDelta create SQL queries.
2183 $cqueries = apply_filters( 'dbdelta_create_queries', $cqueries );
2186 * Filters the dbDelta SQL queries for inserting or updating.
2188 * Queries filterable via this hook contain "INSERT INTO" or "UPDATE".
2192 * @param array $iqueries An array of dbDelta insert or update SQL queries.
2194 $iqueries = apply_filters( 'dbdelta_insert_queries', $iqueries );
2196 $text_fields = array( 'tinytext', 'text', 'mediumtext', 'longtext' );
2197 $blob_fields = array( 'tinyblob', 'blob', 'mediumblob', 'longblob' );
2199 $global_tables = $wpdb->tables( 'global' );
2200 foreach ( $cqueries as $table => $qry ) {
2201 // Upgrade global tables only for the main site. Don't upgrade at all if conditions are not optimal.
2202 if ( in_array( $table, $global_tables ) && ! wp_should_upgrade_global_tables() ) {
2203 unset( $cqueries[ $table ], $for_update[ $table ] );
2207 // Fetch the table column structure from the database
2208 $suppress = $wpdb->suppress_errors();
2209 $tablefields = $wpdb->get_results("DESCRIBE {$table};");
2210 $wpdb->suppress_errors( $suppress );
2212 if ( ! $tablefields )
2215 // Clear the field and index arrays.
2216 $cfields = $indices = array();
2218 // Get all of the field names in the query from between the parentheses.
2219 preg_match("|\((.*)\)|ms", $qry, $match2);
2220 $qryline = trim($match2[1]);
2222 // Separate field lines into an array.
2223 $flds = explode("\n", $qryline);
2225 // For every field line specified in the query.
2226 foreach ( $flds as $fld ) {
2227 $fld = trim( $fld, " \t\n\r\0\x0B," ); // Default trim characters, plus ','.
2229 // Extract the field name.
2230 preg_match( '|^([^ ]*)|', $fld, $fvals );
2231 $fieldname = trim( $fvals[1], '`' );
2232 $fieldname_lowercased = strtolower( $fieldname );
2234 // Verify the found field name.
2236 switch ( $fieldname_lowercased ) {
2244 $validfield = false;
2247 * Normalize the index definition.
2249 * This is done so the definition can be compared against the result of a
2250 * `SHOW INDEX FROM $table_name` query which returns the current table
2251 * index information.
2254 // Extract type, name and columns from the definition.
2257 . '(?P<index_type>' // 1) Type of the index.
2258 . 'PRIMARY\s+KEY|(?:UNIQUE|FULLTEXT|SPATIAL)\s+(?:KEY|INDEX)|KEY|INDEX'
2260 . '\s+' // Followed by at least one white space character.
2261 . '(?:' // Name of the index. Optional if type is PRIMARY KEY.
2262 . '`?' // Name can be escaped with a backtick.
2263 . '(?P<index_name>' // 2) Name of the index.
2264 . '(?:[0-9a-zA-Z$_-]|[\xC2-\xDF][\x80-\xBF])+'
2266 . '`?' // Name can be escaped with a backtick.
2267 . '\s+' // Followed by at least one white space character.
2269 . '\(' // Opening bracket for the columns.
2270 . '(?P<index_columns>'
2271 . '.+?' // 3) Column names, index prefixes, and orders.
2273 . '\)' // Closing bracket for the columns.
2279 // Uppercase the index type and normalize space characters.
2280 $index_type = strtoupper( preg_replace( '/\s+/', ' ', trim( $index_matches['index_type'] ) ) );
2282 // 'INDEX' is a synonym for 'KEY', standardize on 'KEY'.
2283 $index_type = str_replace( 'INDEX', 'KEY', $index_type );
2285 // Escape the index name with backticks. An index for a primary key has no name.
2286 $index_name = ( 'PRIMARY KEY' === $index_type ) ? '' : '`' . $index_matches['index_name'] . '`';
2288 // Parse the columns. Multiple columns are separated by a comma.
2289 $index_columns = array_map( 'trim', explode( ',', $index_matches['index_columns'] ) );
2291 // Normalize columns.
2292 foreach ( $index_columns as &$index_column ) {
2293 // Extract column name and number of indexed characters (sub_part).
2296 . '`?' // Name can be escaped with a backtick.
2297 . '(?P<column_name>' // 1) Name of the column.
2298 . '(?:[0-9a-zA-Z$_-]|[\xC2-\xDF][\x80-\xBF])+'
2300 . '`?' // Name can be escaped with a backtick.
2301 . '(?:' // Optional sub part.
2302 . '\s*' // Optional white space character between name and opening bracket.
2303 . '\(' // Opening bracket for the sub part.
2304 . '\s*' // Optional white space character after opening bracket.
2306 . '\d+' // 2) Number of indexed characters.
2308 . '\s*' // Optional white space character before closing bracket.
2309 . '\)' // Closing bracket for the sub part.
2313 $index_column_matches
2316 // Escape the column name with backticks.
2317 $index_column = '`' . $index_column_matches['column_name'] . '`';
2319 // Append the optional sup part with the number of indexed characters.
2320 if ( isset( $index_column_matches['sub_part'] ) ) {
2321 $index_column .= '(' . $index_column_matches['sub_part'] . ')';
2325 // Build the normalized index definition and add it to the list of indices.
2326 $indices[] = "{$index_type} {$index_name} (" . implode( ',', $index_columns ) . ")";
2328 // Destroy no longer needed variables.
2329 unset( $index_column, $index_column_matches, $index_matches, $index_type, $index_name, $index_columns );
2334 // If it's a valid field, add it to the field array.
2335 if ( $validfield ) {
2336 $cfields[ $fieldname_lowercased ] = $fld;
2340 // For every field in the table.
2341 foreach ( $tablefields as $tablefield ) {
2342 $tablefield_field_lowercased = strtolower( $tablefield->Field );
2343 $tablefield_type_lowercased = strtolower( $tablefield->Type );
2345 // If the table field exists in the field array ...
2346 if ( array_key_exists( $tablefield_field_lowercased, $cfields ) ) {
2348 // Get the field type from the query.
2349 preg_match( '|`?' . $tablefield->Field . '`? ([^ ]*( unsigned)?)|i', $cfields[ $tablefield_field_lowercased ], $matches );
2350 $fieldtype = $matches[1];
2351 $fieldtype_lowercased = strtolower( $fieldtype );
2353 // Is actual field type different from the field type in query?
2354 if ($tablefield->Type != $fieldtype) {
2356 if ( in_array( $fieldtype_lowercased, $text_fields ) && in_array( $tablefield_type_lowercased, $text_fields ) ) {
2357 if ( array_search( $fieldtype_lowercased, $text_fields ) < array_search( $tablefield_type_lowercased, $text_fields ) ) {
2362 if ( in_array( $fieldtype_lowercased, $blob_fields ) && in_array( $tablefield_type_lowercased, $blob_fields ) ) {
2363 if ( array_search( $fieldtype_lowercased, $blob_fields ) < array_search( $tablefield_type_lowercased, $blob_fields ) ) {
2369 // Add a query to change the column type.
2370 $cqueries[] = "ALTER TABLE {$table} CHANGE COLUMN `{$tablefield->Field}` " . $cfields[ $tablefield_field_lowercased ];
2371 $for_update[$table.'.'.$tablefield->Field] = "Changed type of {$table}.{$tablefield->Field} from {$tablefield->Type} to {$fieldtype}";
2375 // Get the default value from the array.
2376 if ( preg_match( "| DEFAULT '(.*?)'|i", $cfields[ $tablefield_field_lowercased ], $matches ) ) {
2377 $default_value = $matches[1];
2378 if ($tablefield->Default != $default_value) {
2379 // Add a query to change the column's default value
2380 $cqueries[] = "ALTER TABLE {$table} ALTER COLUMN `{$tablefield->Field}` SET DEFAULT '{$default_value}'";
2381 $for_update[$table.'.'.$tablefield->Field] = "Changed default value of {$table}.{$tablefield->Field} from {$tablefield->Default} to {$default_value}";
2385 // Remove the field from the array (so it's not added).
2386 unset( $cfields[ $tablefield_field_lowercased ] );
2388 // This field exists in the table, but not in the creation queries?
2392 // For every remaining field specified for the table.
2393 foreach ($cfields as $fieldname => $fielddef) {
2394 // Push a query line into $cqueries that adds the field to that table.
2395 $cqueries[] = "ALTER TABLE {$table} ADD COLUMN $fielddef";
2396 $for_update[$table.'.'.$fieldname] = 'Added column '.$table.'.'.$fieldname;
2399 // Index stuff goes here. Fetch the table index structure from the database.
2400 $tableindices = $wpdb->get_results("SHOW INDEX FROM {$table};");
2402 if ($tableindices) {
2403 // Clear the index array.
2404 $index_ary = array();
2406 // For every index in the table.
2407 foreach ($tableindices as $tableindex) {
2409 // Add the index to the index data array.
2410 $keyname = $tableindex->Key_name;
2411 $index_ary[$keyname]['columns'][] = array('fieldname' => $tableindex->Column_name, 'subpart' => $tableindex->Sub_part);
2412 $index_ary[$keyname]['unique'] = ($tableindex->Non_unique == 0)?true:false;
2413 $index_ary[$keyname]['index_type'] = $tableindex->Index_type;
2416 // For each actual index in the index array.
2417 foreach ($index_ary as $index_name => $index_data) {
2419 // Build a create string to compare to the query.
2421 if ($index_name == 'PRIMARY') {
2422 $index_string .= 'PRIMARY ';
2423 } elseif ( $index_data['unique'] ) {
2424 $index_string .= 'UNIQUE ';
2426 if ( 'FULLTEXT' === strtoupper( $index_data['index_type'] ) ) {
2427 $index_string .= 'FULLTEXT ';
2429 if ( 'SPATIAL' === strtoupper( $index_data['index_type'] ) ) {
2430 $index_string .= 'SPATIAL ';
2432 $index_string .= 'KEY ';
2433 if ( 'PRIMARY' !== $index_name ) {
2434 $index_string .= '`' . $index_name . '`';
2436 $index_columns = '';
2438 // For each column in the index.
2439 foreach ($index_data['columns'] as $column_data) {
2440 if ( $index_columns != '' ) {
2441 $index_columns .= ',';
2444 // Add the field to the column list string.
2445 $index_columns .= '`' . $column_data['fieldname'] . '`';
2446 if ($column_data['subpart'] != '') {
2447 $index_columns .= '('.$column_data['subpart'].')';
2451 // The alternative index string doesn't care about subparts
2452 $alt_index_columns = preg_replace( '/\([^)]*\)/', '', $index_columns );
2454 // Add the column list to the index create string.
2455 $index_strings = array(
2456 "$index_string ($index_columns)",
2457 "$index_string ($alt_index_columns)",
2460 foreach ( $index_strings as $index_string ) {
2461 if ( ! ( ( $aindex = array_search( $index_string, $indices ) ) === false ) ) {
2462 unset( $indices[ $aindex ] );
2469 // For every remaining index specified for the table.
2470 foreach ( (array) $indices as $index ) {
2471 // Push a query line into $cqueries that adds the index to that table.
2472 $cqueries[] = "ALTER TABLE {$table} ADD $index";
2473 $for_update[] = 'Added index ' . $table . ' ' . $index;
2476 // Remove the original table creation query from processing.
2477 unset( $cqueries[ $table ], $for_update[ $table ] );
2480 $allqueries = array_merge($cqueries, $iqueries);
2482 foreach ($allqueries as $query) {
2483 $wpdb->query($query);
2491 * Updates the database tables to a new schema.
2493 * By default, updates all the tables to use the latest defined schema, but can also
2494 * be used to update a specific set of tables in wp_get_db_schema().
2500 * @param string $tables Optional. Which set of tables to update. Default is 'all'.
2502 function make_db_current( $tables = 'all' ) {
2503 $alterations = dbDelta( $tables );
2505 foreach ($alterations as $alteration) echo "<li>$alteration</li>\n";
2510 * Updates the database tables to a new schema, but without displaying results.
2512 * By default, updates all the tables to use the latest defined schema, but can
2513 * also be used to update a specific set of tables in wp_get_db_schema().
2517 * @see make_db_current()
2519 * @param string $tables Optional. Which set of tables to update. Default is 'all'.
2521 function make_db_current_silent( $tables = 'all' ) {
2526 * Creates a site theme from an existing theme.
2528 * {@internal Missing Long Description}}
2532 * @param string $theme_name The name of the theme.
2533 * @param string $template The directory name of the theme.
2536 function make_site_theme_from_oldschool($theme_name, $template) {
2537 $home_path = get_home_path();
2538 $site_dir = WP_CONTENT_DIR . "/themes/$template";
2540 if (! file_exists("$home_path/index.php"))
2544 * Copy files from the old locations to the site theme.
2545 * TODO: This does not copy arbitrary include dependencies. Only the standard WP files are copied.
2547 $files = array('index.php' => 'index.php', 'wp-layout.css' => 'style.css', 'wp-comments.php' => 'comments.php', 'wp-comments-popup.php' => 'comments-popup.php');
2549 foreach ($files as $oldfile => $newfile) {
2550 if ($oldfile == 'index.php')
2551 $oldpath = $home_path;
2555 // Check to make sure it's not a new index.
2556 if ($oldfile == 'index.php') {
2557 $index = implode('', file("$oldpath/$oldfile"));
2558 if (strpos($index, 'WP_USE_THEMES') !== false) {
2559 if (! @copy(WP_CONTENT_DIR . '/themes/' . WP_DEFAULT_THEME . '/index.php', "$site_dir/$newfile"))
2562 // Don't copy anything.
2567 if (! @copy("$oldpath/$oldfile", "$site_dir/$newfile"))
2570 chmod("$site_dir/$newfile", 0777);
2572 // Update the blog header include in each file.
2573 $lines = explode("\n", implode('', file("$site_dir/$newfile")));
2575 $f = fopen("$site_dir/$newfile", 'w');
2577 foreach ($lines as $line) {
2578 if (preg_match('/require.*wp-blog-header/', $line))
2579 $line = '//' . $line;
2581 // Update stylesheet references.
2582 $line = str_replace("<?php echo __get_option('siteurl'); ?>/wp-layout.css", "<?php bloginfo('stylesheet_url'); ?>", $line);
2584 // Update comments template inclusion.
2585 $line = str_replace("<?php include(ABSPATH . 'wp-comments.php'); ?>", "<?php comments_template(); ?>", $line);
2587 fwrite($f, "{$line}\n");
2593 // Add a theme header.
2594 $header = "/*\nTheme Name: $theme_name\nTheme URI: " . __get_option('siteurl') . "\nDescription: A theme automatically created by the update.\nVersion: 1.0\nAuthor: Moi\n*/\n";
2596 $stylelines = file_get_contents("$site_dir/style.css");
2598 $f = fopen("$site_dir/style.css", 'w');
2600 fwrite($f, $header);
2601 fwrite($f, $stylelines);
2609 * Creates a site theme from the default theme.
2611 * {@internal Missing Long Description}}
2615 * @param string $theme_name The name of the theme.
2616 * @param string $template The directory name of the theme.
2617 * @return false|void
2619 function make_site_theme_from_default($theme_name, $template) {
2620 $site_dir = WP_CONTENT_DIR . "/themes/$template";
2621 $default_dir = WP_CONTENT_DIR . '/themes/' . WP_DEFAULT_THEME;
2623 // Copy files from the default theme to the site theme.
2624 //$files = array('index.php', 'comments.php', 'comments-popup.php', 'footer.php', 'header.php', 'sidebar.php', 'style.css');
2626 $theme_dir = @ opendir($default_dir);
2628 while(($theme_file = readdir( $theme_dir )) !== false) {
2629 if (is_dir("$default_dir/$theme_file"))
2631 if (! @copy("$default_dir/$theme_file", "$site_dir/$theme_file"))
2633 chmod("$site_dir/$theme_file", 0777);
2636 @closedir($theme_dir);
2638 // Rewrite the theme header.
2639 $stylelines = explode("\n", implode('', file("$site_dir/style.css")));
2641 $f = fopen("$site_dir/style.css", 'w');
2643 foreach ($stylelines as $line) {
2644 if (strpos($line, 'Theme Name:') !== false) $line = 'Theme Name: ' . $theme_name;
2645 elseif (strpos($line, 'Theme URI:') !== false) $line = 'Theme URI: ' . __get_option('url');
2646 elseif (strpos($line, 'Description:') !== false) $line = 'Description: Your theme.';
2647 elseif (strpos($line, 'Version:') !== false) $line = 'Version: 1';
2648 elseif (strpos($line, 'Author:') !== false) $line = 'Author: You';
2649 fwrite($f, $line . "\n");
2656 if (! mkdir("$site_dir/images", 0777)) {
2660 $images_dir = @ opendir("$default_dir/images");
2662 while(($image = readdir($images_dir)) !== false) {
2663 if (is_dir("$default_dir/images/$image"))
2665 if (! @copy("$default_dir/images/$image", "$site_dir/images/$image"))
2667 chmod("$site_dir/images/$image", 0777);
2670 @closedir($images_dir);
2674 * Creates a site theme.
2676 * {@internal Missing Long Description}}
2680 * @return false|string
2682 function make_site_theme() {
2683 // Name the theme after the blog.
2684 $theme_name = __get_option('blogname');
2685 $template = sanitize_title($theme_name);
2686 $site_dir = WP_CONTENT_DIR . "/themes/$template";
2688 // If the theme already exists, nothing to do.
2689 if ( is_dir($site_dir)) {
2693 // We must be able to write to the themes dir.
2694 if (! is_writable(WP_CONTENT_DIR . "/themes")) {
2699 if (! mkdir($site_dir, 0777)) {
2703 if (file_exists(ABSPATH . 'wp-layout.css')) {
2704 if (! make_site_theme_from_oldschool($theme_name, $template)) {
2705 // TODO: rm -rf the site theme directory.
2709 if (! make_site_theme_from_default($theme_name, $template))
2710 // TODO: rm -rf the site theme directory.
2714 // Make the new site theme active.
2715 $current_template = __get_option('template');
2716 if ($current_template == WP_DEFAULT_THEME) {
2717 update_option('template', $template);
2718 update_option('stylesheet', $template);
2724 * Translate user level to user role name.
2728 * @param int $level User level.
2729 * @return string User role name.
2731 function translate_level_to_role($level) {
2736 return 'administrator';
2746 return 'contributor';
2748 return 'subscriber';
2753 * Checks the version of the installed MySQL binary.
2757 * @global wpdb $wpdb
2759 function wp_check_mysql_version() {
2761 $result = $wpdb->check_database_version();
2762 if ( is_wp_error( $result ) )
2763 die( $result->get_error_message() );
2767 * Disables the Automattic widgets plugin, which was merged into core.
2771 function maybe_disable_automattic_widgets() {
2772 $plugins = __get_option( 'active_plugins' );
2774 foreach ( (array) $plugins as $plugin ) {
2775 if ( basename( $plugin ) == 'widgets.php' ) {
2776 array_splice( $plugins, array_search( $plugin, $plugins ), 1 );
2777 update_option( 'active_plugins', $plugins );
2784 * Disables the Link Manager on upgrade if, at the time of upgrade, no links exist in the DB.
2788 * @global int $wp_current_db_version
2789 * @global wpdb $wpdb WordPress database abstraction object.
2791 function maybe_disable_link_manager() {
2792 global $wp_current_db_version, $wpdb;
2794 if ( $wp_current_db_version >= 22006 && get_option( 'link_manager_enabled' ) && ! $wpdb->get_var( "SELECT link_id FROM $wpdb->links LIMIT 1" ) )
2795 update_option( 'link_manager_enabled', 0 );
2799 * Runs before the schema is upgraded.
2803 * @global int $wp_current_db_version
2804 * @global wpdb $wpdb WordPress database abstraction object.
2806 function pre_schema_upgrade() {
2807 global $wp_current_db_version, $wpdb;
2809 // Upgrade versions prior to 2.9
2810 if ( $wp_current_db_version < 11557 ) {
2811 // Delete duplicate options. Keep the option with the highest option_id.
2812 $wpdb->query("DELETE o1 FROM $wpdb->options AS o1 JOIN $wpdb->options AS o2 USING (`option_name`) WHERE o2.option_id > o1.option_id");
2814 // Drop the old primary key and add the new.
2815 $wpdb->query("ALTER TABLE $wpdb->options DROP PRIMARY KEY, ADD PRIMARY KEY(option_id)");
2817 // Drop the old option_name index. dbDelta() doesn't do the drop.
2818 $wpdb->query("ALTER TABLE $wpdb->options DROP INDEX option_name");
2821 // Multisite schema upgrades.
2822 if ( $wp_current_db_version < 25448 && is_multisite() && wp_should_upgrade_global_tables() ) {
2824 // Upgrade verions prior to 3.7
2825 if ( $wp_current_db_version < 25179 ) {
2826 // New primary key for signups.
2827 $wpdb->query( "ALTER TABLE $wpdb->signups ADD signup_id BIGINT(20) NOT NULL AUTO_INCREMENT PRIMARY KEY FIRST" );
2828 $wpdb->query( "ALTER TABLE $wpdb->signups DROP INDEX domain" );
2831 if ( $wp_current_db_version < 25448 ) {
2832 // Convert archived from enum to tinyint.
2833 $wpdb->query( "ALTER TABLE $wpdb->blogs CHANGE COLUMN archived archived varchar(1) NOT NULL default '0'" );
2834 $wpdb->query( "ALTER TABLE $wpdb->blogs CHANGE COLUMN archived archived tinyint(2) NOT NULL default 0" );
2838 // Upgrade versions prior to 4.2.
2839 if ( $wp_current_db_version < 31351 ) {
2840 if ( ! is_multisite() && wp_should_upgrade_global_tables() ) {
2841 $wpdb->query( "ALTER TABLE $wpdb->usermeta DROP INDEX meta_key, ADD INDEX meta_key(meta_key(191))" );
2843 $wpdb->query( "ALTER TABLE $wpdb->terms DROP INDEX slug, ADD INDEX slug(slug(191))" );
2844 $wpdb->query( "ALTER TABLE $wpdb->terms DROP INDEX name, ADD INDEX name(name(191))" );
2845 $wpdb->query( "ALTER TABLE $wpdb->commentmeta DROP INDEX meta_key, ADD INDEX meta_key(meta_key(191))" );
2846 $wpdb->query( "ALTER TABLE $wpdb->postmeta DROP INDEX meta_key, ADD INDEX meta_key(meta_key(191))" );
2847 $wpdb->query( "ALTER TABLE $wpdb->posts DROP INDEX post_name, ADD INDEX post_name(post_name(191))" );
2850 // Upgrade versions prior to 4.4.
2851 if ( $wp_current_db_version < 34978 ) {
2852 // If compatible termmeta table is found, use it, but enforce a proper index and update collation.
2853 if ( $wpdb->get_var( "SHOW TABLES LIKE '{$wpdb->termmeta}'" ) && $wpdb->get_results( "SHOW INDEX FROM {$wpdb->termmeta} WHERE Column_name = 'meta_key'" ) ) {
2854 $wpdb->query( "ALTER TABLE $wpdb->termmeta DROP INDEX meta_key, ADD INDEX meta_key(meta_key(191))" );
2855 maybe_convert_table_to_utf8mb4( $wpdb->termmeta );
2861 * Install global terms.
2865 * @global wpdb $wpdb
2866 * @global string $charset_collate
2868 if ( !function_exists( 'install_global_terms' ) ) :
2869 function install_global_terms() {
2870 global $wpdb, $charset_collate;
2872 CREATE TABLE $wpdb->sitecategories (
2873 cat_ID bigint(20) NOT NULL auto_increment,
2874 cat_name varchar(55) NOT NULL default '',
2875 category_nicename varchar(200) NOT NULL default '',
2876 last_updated timestamp NOT NULL,
2877 PRIMARY KEY (cat_ID),
2878 KEY category_nicename (category_nicename),
2879 KEY last_updated (last_updated)
2882 // now create tables
2883 dbDelta( $ms_queries );
2888 * Determine if global tables should be upgraded.
2890 * This function performs a series of checks to ensure the environment allows
2891 * for the safe upgrading of global WordPress database tables. It is necessary
2892 * because global tables will commonly grow to millions of rows on large
2893 * installations, and the ability to control their upgrade routines can be
2894 * critical to the operation of large networks.
2896 * In a future iteration, this function may use `wp_is_large_network()` to more-
2897 * intelligently prevent global table upgrades. Until then, we make sure
2898 * WordPress is on the main site of the main network, to avoid running queries
2899 * more than once in multi-site or multi-network environments.
2903 * @return bool Whether to run the upgrade routines on global tables.
2905 function wp_should_upgrade_global_tables() {
2907 // Return false early if explicitly not upgrading
2908 if ( defined( 'DO_NOT_UPGRADE_GLOBAL_TABLES' ) ) {
2912 // Assume global tables should be upgraded
2913 $should_upgrade = true;
2915 // Set to false if not on main network (does not matter if not multi-network)
2916 if ( ! is_main_network() ) {
2917 $should_upgrade = false;
2920 // Set to false if not on main site of current network (does not matter if not multi-site)
2921 if ( ! is_main_site() ) {
2922 $should_upgrade = false;
2926 * Filters if upgrade routines should be run on global tables.
2928 * @param bool $should_upgrade Whether to run the upgrade routines on global tables.
2930 return apply_filters( 'wp_should_upgrade_global_tables', $should_upgrade );