I just slapped myself silly for not thinking about it earlier
$got_gmt_fields = ! ($wpdb->get_var("SELECT MAX(post_date_gmt) FROM $wpdb->posts") == '0000-00-00 00:00:00');
if (!$got_gmt_fields) {
// Add or subtract 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)");
}
}
/**
* Execute changes made in WordPress 1.5.
*
* @ignore
* @since 1.5.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*/
function upgrade_130() {
global $wpdb;
// Remove extraneous backslashes.
$posts = $wpdb->get_results("SELECT ID, post_title, post_content, post_excerpt, guid, post_date, post_name, post_status, post_author FROM $wpdb->posts");
if ($posts) {
foreach ($posts as $post) {
$post_content = addslashes(deslash($post->post_content));
$post_title = addslashes(deslash($post->post_title));
$post_excerpt = addslashes(deslash($post->post_excerpt));
if ( empty($post->guid) )
$guid = get_permalink($post->ID);
else
$guid = $post->guid;
$wpdb->update( $wpdb->posts, compact('post_title', 'post_content', 'post_excerpt', 'guid'), array('ID' => $post->ID) );
}
}
// Remove extraneous backslashes.
$comments = $wpdb->get_results("SELECT comment_ID, comment_author, comment_content FROM $wpdb->comments");
if ($comments) {
foreach ($comments as $comment) {
$comment_content = deslash($comment->comment_content);
$comment_author = deslash($comment->comment_author);
$wpdb->update($wpdb->comments, compact('comment_content', 'comment_author'), array('comment_ID' => $comment->comment_ID) );
}
}
// Remove extraneous backslashes.
$links = $wpdb->get_results("SELECT link_id, link_name, link_description FROM $wpdb->links");
if ($links) {
foreach ($links as $link) {
$link_name = deslash($link->link_name);
$link_description = deslash($link->link_description);
$wpdb->update( $wpdb->links, compact('link_name', 'link_description'), array('link_id' => $link->link_id) );
}
}
$active_plugins = __get_option('active_plugins');
/*
* If plugins are not stored in an array, they're stored in the old
* newline separated format. Convert to new format.
*/
if ( !is_array( $active_plugins ) ) {
$active_plugins = explode("\n", trim($active_plugins));
update_option('active_plugins', $active_plugins);
}
// Obsolete tables
$wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'optionvalues');
$wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'optiontypes');
$wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'optiongroups');
$wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'optiongroup_options');
// Update comments table to use comment_type
$wpdb->query("UPDATE $wpdb->comments SET comment_type='trackback', comment_content = REPLACE(comment_content, '', '') WHERE comment_content LIKE '%'");
$wpdb->query("UPDATE $wpdb->comments SET comment_type='pingback', comment_content = REPLACE(comment_content, '', '') WHERE comment_content LIKE '%'");
// 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( $wpdb->prepare("SELECT option_id FROM $wpdb->options WHERE option_name = %s LIMIT %d", $option->option_name, $limit) );
if ( $dupe_ids ) {
$dupe_ids = join($dupe_ids, ',');
$wpdb->query("DELETE FROM $wpdb->options WHERE option_id IN ($dupe_ids)");
}
}
}
make_site_theme();
}
/**
* Execute changes made in WordPress 2.0.
*
* @ignore
* @since 2.0.0
*
* @global wpdb $wpdb WordPress database abstraction object.
* @global int $wp_current_db_version
*/
function upgrade_160() {
global $wpdb, $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_user_meta( $user->ID, 'first_name', wp_slash($user->user_firstname) );
if ( !empty( $user->user_lastname ) )
update_user_meta( $user->ID, 'last_name', wp_slash($user->user_lastname) );
if ( !empty( $user->user_nickname ) )
update_user_meta( $user->ID, 'nickname', wp_slash($user->user_nickname) );
if ( !empty( $user->user_level ) )
update_user_meta( $user->ID, $wpdb->prefix . 'user_level', $user->user_level );
if ( !empty( $user->user_icq ) )
update_user_meta( $user->ID, 'icq', wp_slash($user->user_icq) );
if ( !empty( $user->user_aim ) )
update_user_meta( $user->ID, 'aim', wp_slash($user->user_aim) );
if ( !empty( $user->user_msn ) )
update_user_meta( $user->ID, 'msn', wp_slash($user->user_msn) );
if ( !empty( $user->user_yim ) )
update_user_meta( $user->ID, 'yim', wp_slash($user->user_icq) );
if ( !empty( $user->user_description ) )
update_user_meta( $user->ID, 'description', wp_slash($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;
$wpdb->update( $wpdb->users, array('display_name' => $id), array('ID' => $user->ID) );
endif;
// FIXME: RESET_CAPS is temporary code to reset roles and caps if flag is set.
$caps = get_user_meta( $user->ID, $wpdb->prefix . 'capabilities');
if ( empty($caps) || defined('RESET_CAPS') ) {
$level = get_user_meta($user->ID, $wpdb->prefix . 'user_level', true);
$role = translate_level_to_role($level);
update_user_meta( $user->ID, $wpdb->prefix . 'capabilities', array($role => true) );
}
endforeach;
$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' );
$wpdb->hide_errors();
foreach ( $old_user_fields as $old )
$wpdb->query("ALTER TABLE $wpdb->users DROP $old");
$wpdb->show_errors();
// Populate comment_count field of posts table.
$comments = $wpdb->get_results( "SELECT comment_post_ID, COUNT(*) as c FROM $wpdb->comments WHERE comment_approved = '1' GROUP BY comment_post_ID" );
if ( is_array( $comments ) )
foreach ($comments as $comment)
$wpdb->update( $wpdb->posts, array('comment_count' => $comment->c), array('ID' => $comment->comment_post_ID) );
/*
* Some alpha versions used a post status of object instead of attachment
* and put the mime type in post_type instead of post_mime_type.
*/
if ( $wp_current_db_version > 2541 && $wp_current_db_version <= 3091 ) {
$objects = $wpdb->get_results("SELECT ID, post_type FROM $wpdb->posts WHERE post_status = 'object'");
foreach ($objects as $object) {
$wpdb->update( $wpdb->posts, array( 'post_status' => 'attachment',
'post_mime_type' => $object->post_type,
'post_type' => ''),
array( 'ID' => $object->ID ) );
$meta = get_post_meta($object->ID, 'imagedata', true);
if ( ! empty($meta['file']) )
update_attached_file( $object->ID, $meta['file'] );
}
}
}
/**
* Execute changes made in WordPress 2.1.
*
* @ignore
* @since 2.1.0
*
* @global wpdb $wpdb WordPress database abstraction object.
* @global int $wp_current_db_version
*/
function upgrade_210() {
global $wpdb, $wp_current_db_version;
if ( $wp_current_db_version < 3506 ) {
// Update status and type.
$posts = $wpdb->get_results("SELECT ID, post_status FROM $wpdb->posts");
if ( ! empty($posts) ) foreach ($posts as $post) {
$status = $post->post_status;
$type = 'post';
if ( 'static' == $status ) {
$status = 'publish';
$type = 'page';
} elseif ( 'attachment' == $status ) {
$status = 'inherit';
$type = 'attachment';
}
$wpdb->query( $wpdb->prepare("UPDATE $wpdb->posts SET post_status = %s, post_type = %s WHERE ID = %d", $status, $type, $post->ID) );
}
}
if ( $wp_current_db_version < 3845 ) {
populate_roles_210();
}
if ( $wp_current_db_version < 3531 ) {
// Give future posts a post_status of future.
$now = gmdate('Y-m-d H:i:59');
$wpdb->query ("UPDATE $wpdb->posts SET post_status = 'future' WHERE post_status = 'publish' AND post_date_gmt > '$now'");
$posts = $wpdb->get_results("SELECT ID, post_date FROM $wpdb->posts WHERE post_status ='future'");
if ( !empty($posts) )
foreach ( $posts as $post )
wp_schedule_single_event(mysql2date('U', $post->post_date, false), 'publish_future_post', array($post->ID));
}
}
/**
* Execute changes made in WordPress 2.3.
*
* @ignore
* @since 2.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
* @global int $wp_current_db_version
*/
function upgrade_230() {
global $wp_current_db_version, $wpdb;
if ( $wp_current_db_version < 5200 ) {
populate_roles_230();
}
// Convert categories to terms.
$tt_ids = array();
$have_tags = false;
$categories = $wpdb->get_results("SELECT * FROM $wpdb->categories ORDER BY cat_ID");
foreach ($categories as $category) {
$term_id = (int) $category->cat_ID;
$name = $category->cat_name;
$description = $category->category_description;
$slug = $category->category_nicename;
$parent = $category->category_parent;
$term_group = 0;
// Associate terms with the same slug in a term group and make slugs unique.
if ( $exists = $wpdb->get_results( $wpdb->prepare("SELECT term_id, term_group FROM $wpdb->terms WHERE slug = %s", $slug) ) ) {
$term_group = $exists[0]->term_group;
$id = $exists[0]->term_id;
$num = 2;
do {
$alt_slug = $slug . "-$num";
$num++;
$slug_check = $wpdb->get_var( $wpdb->prepare("SELECT slug FROM $wpdb->terms WHERE slug = %s", $alt_slug) );
} while ( $slug_check );
$slug = $alt_slug;
if ( empty( $term_group ) ) {
$term_group = $wpdb->get_var("SELECT MAX(term_group) FROM $wpdb->terms GROUP BY term_group") + 1;
$wpdb->query( $wpdb->prepare("UPDATE $wpdb->terms SET term_group = %d WHERE term_id = %d", $term_group, $id) );
}
}
$wpdb->query( $wpdb->prepare("INSERT INTO $wpdb->terms (term_id, name, slug, term_group) VALUES
(%d, %s, %s, %d)", $term_id, $name, $slug, $term_group) );
$count = 0;
if ( !empty($category->category_count) ) {
$count = (int) $category->category_count;
$taxonomy = 'category';
$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) );
$tt_ids[$term_id][$taxonomy] = (int) $wpdb->insert_id;
}
if ( !empty($category->link_count) ) {
$count = (int) $category->link_count;
$taxonomy = 'link_category';
$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) );
$tt_ids[$term_id][$taxonomy] = (int) $wpdb->insert_id;
}
if ( !empty($category->tag_count) ) {
$have_tags = true;
$count = (int) $category->tag_count;
$taxonomy = 'post_tag';
$wpdb->insert( $wpdb->term_taxonomy, compact('term_id', 'taxonomy', 'description', 'parent', 'count') );
$tt_ids[$term_id][$taxonomy] = (int) $wpdb->insert_id;
}
if ( empty($count) ) {
$count = 0;
$taxonomy = 'category';
$wpdb->insert( $wpdb->term_taxonomy, compact('term_id', 'taxonomy', 'description', 'parent', 'count') );
$tt_ids[$term_id][$taxonomy] = (int) $wpdb->insert_id;
}
}
$select = 'post_id, category_id';
if ( $have_tags )
$select .= ', rel_type';
$posts = $wpdb->get_results("SELECT $select FROM $wpdb->post2cat GROUP BY post_id, category_id");
foreach ( $posts as $post ) {
$post_id = (int) $post->post_id;
$term_id = (int) $post->category_id;
$taxonomy = 'category';
if ( !empty($post->rel_type) && 'tag' == $post->rel_type)
$taxonomy = 'tag';
$tt_id = $tt_ids[$term_id][$taxonomy];
if ( empty($tt_id) )
continue;
$wpdb->insert( $wpdb->term_relationships, array('object_id' => $post_id, 'term_taxonomy_id' => $tt_id) );
}
// < 3570 we used linkcategories. >= 3570 we used categories and link2cat.
if ( $wp_current_db_version < 3570 ) {
/*
* Create link_category terms for link categories. Create a map of link
* cat IDs to link_category terms.
*/
$link_cat_id_map = array();
$default_link_cat = 0;
$tt_ids = array();
$link_cats = $wpdb->get_results("SELECT cat_id, cat_name FROM " . $wpdb->prefix . 'linkcategories');
foreach ( $link_cats as $category) {
$cat_id = (int) $category->cat_id;
$term_id = 0;
$name = wp_slash($category->cat_name);
$slug = sanitize_title($name);
$term_group = 0;
// Associate terms with the same slug in a term group and make slugs unique.
if ( $exists = $wpdb->get_results( $wpdb->prepare("SELECT term_id, term_group FROM $wpdb->terms WHERE slug = %s", $slug) ) ) {
$term_group = $exists[0]->term_group;
$term_id = $exists[0]->term_id;
}
if ( empty($term_id) ) {
$wpdb->insert( $wpdb->terms, compact('name', 'slug', 'term_group') );
$term_id = (int) $wpdb->insert_id;
}
$link_cat_id_map[$cat_id] = $term_id;
$default_link_cat = $term_id;
$wpdb->insert( $wpdb->term_taxonomy, array('term_id' => $term_id, 'taxonomy' => 'link_category', 'description' => '', 'parent' => 0, 'count' => 0) );
$tt_ids[$term_id] = (int) $wpdb->insert_id;
}
// Associate links to cats.
$links = $wpdb->get_results("SELECT link_id, link_category FROM $wpdb->links");
if ( !empty($links) ) foreach ( $links as $link ) {
if ( 0 == $link->link_category )
continue;
if ( ! isset($link_cat_id_map[$link->link_category]) )
continue;
$term_id = $link_cat_id_map[$link->link_category];
$tt_id = $tt_ids[$term_id];
if ( empty($tt_id) )
continue;
$wpdb->insert( $wpdb->term_relationships, array('object_id' => $link->link_id, 'term_taxonomy_id' => $tt_id) );
}
// Set default to the last category we grabbed during the upgrade loop.
update_option('default_link_category', $default_link_cat);
} else {
$links = $wpdb->get_results("SELECT link_id, category_id FROM $wpdb->link2cat GROUP BY link_id, category_id");
foreach ( $links as $link ) {
$link_id = (int) $link->link_id;
$term_id = (int) $link->category_id;
$taxonomy = 'link_category';
$tt_id = $tt_ids[$term_id][$taxonomy];
if ( empty($tt_id) )
continue;
$wpdb->insert( $wpdb->term_relationships, array('object_id' => $link_id, 'term_taxonomy_id' => $tt_id) );
}
}
if ( $wp_current_db_version < 4772 ) {
// Obsolete linkcategories table
$wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'linkcategories');
}
// Recalculate all counts
$terms = $wpdb->get_results("SELECT term_taxonomy_id, taxonomy FROM $wpdb->term_taxonomy");
foreach ( (array) $terms as $term ) {
if ( ('post_tag' == $term->taxonomy) || ('category' == $term->taxonomy) )
$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) );
else
$count = $wpdb->get_var( $wpdb->prepare("SELECT COUNT(*) FROM $wpdb->term_relationships WHERE term_taxonomy_id = %d", $term->term_taxonomy_id) );
$wpdb->update( $wpdb->term_taxonomy, array('count' => $count), array('term_taxonomy_id' => $term->term_taxonomy_id) );
}
}
/**
* Remove old options from the database.
*
* @ignore
* @since 2.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*/
function upgrade_230_options_table() {
global $wpdb;
$old_options_fields = array( 'option_can_override', 'option_type', 'option_width', 'option_height', 'option_description', 'option_admin_level' );
$wpdb->hide_errors();
foreach ( $old_options_fields as $old )
$wpdb->query("ALTER TABLE $wpdb->options DROP $old");
$wpdb->show_errors();
}
/**
* Remove old categories, link2cat, and post2cat database tables.
*
* @ignore
* @since 2.3.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*/
function upgrade_230_old_tables() {
global $wpdb;
$wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'categories');
$wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'link2cat');
$wpdb->query('DROP TABLE IF EXISTS ' . $wpdb->prefix . 'post2cat');
}
/**
* Upgrade old slugs made in version 2.2.
*
* @ignore
* @since 2.2.0
*
* @global wpdb $wpdb WordPress database abstraction object.
*/
function upgrade_old_slugs() {
// Upgrade people who were using the Redirect Old Slugs plugin.
global $wpdb;
$wpdb->query("UPDATE $wpdb->postmeta SET meta_key = '_wp_old_slug' WHERE meta_key = 'old_slug'");
}
/**
* Execute changes made in WordPress 2.5.0.
*
* @ignore
* @since 2.5.0
*
* @global int $wp_current_db_version
*/
function upgrade_250() {
global $wp_current_db_version;
if ( $wp_current_db_version < 6689 ) {
populate_roles_250();
}
}
/**
* Execute changes made in WordPress 2.5.2.
*
* @ignore
* @since 2.5.2
*
* @global wpdb $wpdb WordPress database abstraction object.
*/
function upgrade_252() {
global $wpdb;
$wpdb->query("UPDATE $wpdb->users SET user_activation_key = ''");
}
/**
* Execute changes made in WordPress 2.6.
*
* @ignore
* @since 2.6.0
*
* @global int $wp_current_db_version
*/
function upgrade_260() {
global $wp_current_db_version;
if ( $wp_current_db_version < 8000 )
populate_roles_260();
}
/**
* Execute changes made in WordPress 2.7.
*
* @ignore
* @since 2.7.0
*
* @global wpdb $wpdb WordPress database abstraction object.
* @global int $wp_current_db_version
*/
function upgrade_270() {
global $wpdb, $wp_current_db_version;
if ( $wp_current_db_version < 8980 )
populate_roles_270();
// Update post_date for unpublished posts with empty timestamp
if ( $wp_current_db_version < 8921 )
$wpdb->query( "UPDATE $wpdb->posts SET post_date = post_modified WHERE post_date = '0000-00-00 00:00:00'" );
}
/**
* Execute changes made in WordPress 2.8.
*
* @ignore
* @since 2.8.0
*
* @global int $wp_current_db_version
* @global wpdb $wpdb WordPress database abstraction object.
*/
function upgrade_280() {
global $wp_current_db_version, $wpdb;
if ( $wp_current_db_version < 10360 )
populate_roles_280();
if ( is_multisite() ) {
$start = 0;
while( $rows = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options ORDER BY option_id LIMIT $start, 20" ) ) {
foreach ( $rows as $row ) {
$value = $row->option_value;
if ( !@unserialize( $value ) )
$value = stripslashes( $value );
if ( $value !== $row->option_value ) {
update_option( $row->option_name, $value );
}
}
$start += 20;
}
refresh_blog_details( $wpdb->blogid );
}
}
/**
* Execute changes made in WordPress 2.9.
*
* @ignore
* @since 2.9.0
*
* @global int $wp_current_db_version
*/
function upgrade_290() {
global $wp_current_db_version;
if ( $wp_current_db_version < 11958 ) {
// Previously, setting depth to 1 would redundantly disable threading, but now 2 is the minimum depth to avoid confusion
if ( get_option( 'thread_comments_depth' ) == '1' ) {
update_option( 'thread_comments_depth', 2 );
update_option( 'thread_comments', 0 );
}
}
}
/**
* Execute changes made in WordPress 3.0.
*
* @ignore
* @since 3.0.0
*
* @global int $wp_current_db_version
* @global wpdb $wpdb WordPress database abstraction object.
*/
function upgrade_300() {
global $wp_current_db_version, $wpdb;
if ( $wp_current_db_version < 15093 )
populate_roles_300();
if ( $wp_current_db_version < 14139 && is_multisite() && is_main_site() && ! defined( 'MULTISITE' ) && get_site_option( 'siteurl' ) === false )
add_site_option( 'siteurl', '' );
// 3.0 screen options key name changes.
if ( wp_should_upgrade_global_tables() ) {
$sql = "DELETE FROM $wpdb->usermeta
WHERE meta_key LIKE %s
OR meta_key LIKE %s
OR meta_key LIKE %s
OR meta_key LIKE %s
OR meta_key LIKE %s
OR meta_key LIKE %s
OR meta_key = 'manageedittagscolumnshidden'
OR meta_key = 'managecategoriescolumnshidden'
OR meta_key = 'manageedit-tagscolumnshidden'
OR meta_key = 'manageeditcolumnshidden'
OR meta_key = 'categories_per_page'
OR meta_key = 'edit_tags_per_page'";
$prefix = $wpdb->esc_like( $wpdb->base_prefix );
$wpdb->query( $wpdb->prepare( $sql,
$prefix . '%' . $wpdb->esc_like( 'meta-box-hidden' ) . '%',
$prefix . '%' . $wpdb->esc_like( 'closedpostboxes' ) . '%',
$prefix . '%' . $wpdb->esc_like( 'manage-' ) . '%' . $wpdb->esc_like( '-columns-hidden' ) . '%',
$prefix . '%' . $wpdb->esc_like( 'meta-box-order' ) . '%',
$prefix . '%' . $wpdb->esc_like( 'metaboxorder' ) . '%',
$prefix . '%' . $wpdb->esc_like( 'screen_layout' ) . '%'
) );
}
}
/**
* Execute changes made in WordPress 3.3.
*
* @ignore
* @since 3.3.0
*
* @global int $wp_current_db_version
* @global wpdb $wpdb
* @global array $wp_registered_widgets
* @global array $sidebars_widgets
*/
function upgrade_330() {
global $wp_current_db_version, $wpdb, $wp_registered_widgets, $sidebars_widgets;
if ( $wp_current_db_version < 19061 && wp_should_upgrade_global_tables() ) {
$wpdb->query( "DELETE FROM $wpdb->usermeta WHERE meta_key IN ('show_admin_bar_admin', 'plugins_last_view')" );
}
if ( $wp_current_db_version >= 11548 )
return;
$sidebars_widgets = get_option( 'sidebars_widgets', array() );
$_sidebars_widgets = array();
if ( isset($sidebars_widgets['wp_inactive_widgets']) || empty($sidebars_widgets) )
$sidebars_widgets['array_version'] = 3;
elseif ( !isset($sidebars_widgets['array_version']) )
$sidebars_widgets['array_version'] = 1;
switch ( $sidebars_widgets['array_version'] ) {
case 1 :
foreach ( (array) $sidebars_widgets as $index => $sidebar )
if ( is_array($sidebar) )
foreach ( (array) $sidebar as $i => $name ) {
$id = strtolower($name);
if ( isset($wp_registered_widgets[$id]) ) {
$_sidebars_widgets[$index][$i] = $id;
continue;
}
$id = sanitize_title($name);
if ( isset($wp_registered_widgets[$id]) ) {
$_sidebars_widgets[$index][$i] = $id;
continue;
}
$found = false;
foreach ( $wp_registered_widgets as $widget_id => $widget ) {
if ( strtolower($widget['name']) == strtolower($name) ) {
$_sidebars_widgets[$index][$i] = $widget['id'];
$found = true;
break;
} elseif ( sanitize_title($widget['name']) == sanitize_title($name) ) {
$_sidebars_widgets[$index][$i] = $widget['id'];
$found = true;
break;
}
}
if ( $found )
continue;
unset($_sidebars_widgets[$index][$i]);
}
$_sidebars_widgets['array_version'] = 2;
$sidebars_widgets = $_sidebars_widgets;
unset($_sidebars_widgets);
case 2 :
$sidebars_widgets = retrieve_widgets();
$sidebars_widgets['array_version'] = 3;
update_option( 'sidebars_widgets', $sidebars_widgets );
}
}
/**
* Execute changes made in WordPress 3.4.
*
* @ignore
* @since 3.4.0
*
* @global int $wp_current_db_version
* @global wpdb $wpdb
*/
function upgrade_340() {
global $wp_current_db_version, $wpdb;
if ( $wp_current_db_version < 19798 ) {
$wpdb->hide_errors();
$wpdb->query( "ALTER TABLE $wpdb->options DROP COLUMN blog_id" );
$wpdb->show_errors();
}
if ( $wp_current_db_version < 19799 ) {
$wpdb->hide_errors();
$wpdb->query("ALTER TABLE $wpdb->comments DROP INDEX comment_approved");
$wpdb->show_errors();
}
if ( $wp_current_db_version < 20022 && wp_should_upgrade_global_tables() ) {
$wpdb->query( "DELETE FROM $wpdb->usermeta WHERE meta_key = 'themes_last_view'" );
}
if ( $wp_current_db_version < 20080 ) {
if ( 'yes' == $wpdb->get_var( "SELECT autoload FROM $wpdb->options WHERE option_name = 'uninstall_plugins'" ) ) {
$uninstall_plugins = get_option( 'uninstall_plugins' );
delete_option( 'uninstall_plugins' );
add_option( 'uninstall_plugins', $uninstall_plugins, null, 'no' );
}
}
}
/**
* Execute changes made in WordPress 3.5.
*
* @ignore
* @since 3.5.0
*
* @global int $wp_current_db_version
* @global wpdb $wpdb
*/
function upgrade_350() {
global $wp_current_db_version, $wpdb;
if ( $wp_current_db_version < 22006 && $wpdb->get_var( "SELECT link_id FROM $wpdb->links LIMIT 1" ) )
update_option( 'link_manager_enabled', 1 ); // Previously set to 0 by populate_options()
if ( $wp_current_db_version < 21811 && wp_should_upgrade_global_tables() ) {
$meta_keys = array();
foreach ( array_merge( get_post_types(), get_taxonomies() ) as $name ) {
if ( false !== strpos( $name, '-' ) )
$meta_keys[] = 'edit_' . str_replace( '-', '_', $name ) . '_per_page';
}
if ( $meta_keys ) {
$meta_keys = implode( "', '", $meta_keys );
$wpdb->query( "DELETE FROM $wpdb->usermeta WHERE meta_key IN ('$meta_keys')" );
}
}
if ( $wp_current_db_version < 22422 && $term = get_term_by( 'slug', 'post-format-standard', 'post_format' ) )
wp_delete_term( $term->term_id, 'post_format' );
}
/**
* Execute changes made in WordPress 3.7.
*
* @ignore
* @since 3.7.0
*
* @global int $wp_current_db_version
*/
function upgrade_370() {
global $wp_current_db_version;
if ( $wp_current_db_version < 25824 )
wp_clear_scheduled_hook( 'wp_auto_updates_maybe_update' );
}
/**
* Execute changes made in WordPress 3.7.2.
*
* @ignore
* @since 3.7.2
* @since 3.8.0
*
* @global int $wp_current_db_version
*/
function upgrade_372() {
global $wp_current_db_version;
if ( $wp_current_db_version < 26148 )
wp_clear_scheduled_hook( 'wp_maybe_auto_update' );
}
/**
* Execute changes made in WordPress 3.8.0.
*
* @ignore
* @since 3.8.0
*
* @global int $wp_current_db_version
*/
function upgrade_380() {
global $wp_current_db_version;
if ( $wp_current_db_version < 26691 ) {
deactivate_plugins( array( 'mp6/mp6.php' ), true );
}
}
/**
* Execute changes made in WordPress 4.0.0.
*
* @ignore
* @since 4.0.0
*
* @global int $wp_current_db_version
*/
function upgrade_400() {
global $wp_current_db_version;
if ( $wp_current_db_version < 29630 ) {
if ( ! is_multisite() && false === get_option( 'WPLANG' ) ) {
if ( defined( 'WPLANG' ) && ( '' !== WPLANG ) && in_array( WPLANG, get_available_languages() ) ) {
update_option( 'WPLANG', WPLANG );
} else {
update_option( 'WPLANG', '' );
}
}
}
}
/**
* Execute changes made in WordPress 4.2.0.
*
* @ignore
* @since 4.2.0
*
* @global int $wp_current_db_version
* @global wpdb $wpdb
*/
function upgrade_420() {}
/**
* Executes changes made in WordPress 4.3.0.
*
* @ignore
* @since 4.3.0
*
* @global int $wp_current_db_version Current version.
* @global wpdb $wpdb WordPress database abstraction object.
*/
function upgrade_430() {
global $wp_current_db_version, $wpdb;
if ( $wp_current_db_version < 32364 ) {
upgrade_430_fix_comments();
}
// Shared terms are split in a separate process.
if ( $wp_current_db_version < 32814 ) {
update_option( 'finished_splitting_shared_terms', 0 );
wp_schedule_single_event( time() + ( 1 * MINUTE_IN_SECONDS ), 'wp_split_shared_term_batch' );
}
if ( $wp_current_db_version < 33055 && 'utf8mb4' === $wpdb->charset ) {
if ( is_multisite() ) {
$tables = $wpdb->tables( 'blog' );
} else {
$tables = $wpdb->tables( 'all' );
if ( ! wp_should_upgrade_global_tables() ) {
$global_tables = $wpdb->tables( 'global' );
$tables = array_diff_assoc( $tables, $global_tables );
}
}
foreach ( $tables as $table ) {
maybe_convert_table_to_utf8mb4( $table );
}
}
}
/**
* Executes comments changes made in WordPress 4.3.0.
*
* @ignore
* @since 4.3.0
*
* @global int $wp_current_db_version Current version.
* @global wpdb $wpdb WordPress database abstraction object.
*/
function upgrade_430_fix_comments() {
global $wp_current_db_version, $wpdb;
$content_length = $wpdb->get_col_length( $wpdb->comments, 'comment_content' );
if ( is_wp_error( $content_length ) ) {
return;
}
if ( false === $content_length ) {
$content_length = array(
'type' => 'byte',
'length' => 65535,
);
} elseif ( ! is_array( $content_length ) ) {
$length = (int) $content_length > 0 ? (int) $content_length : 65535;
$content_length = array(
'type' => 'byte',
'length' => $length
);
}
if ( 'byte' !== $content_length['type'] || 0 === $content_length['length'] ) {
// Sites with malformed DB schemas are on their own.
return;
}
$allowed_length = intval( $content_length['length'] ) - 10;
$comments = $wpdb->get_results(
"SELECT `comment_ID` FROM `{$wpdb->comments}`
WHERE `comment_date_gmt` > '2015-04-26'
AND LENGTH( `comment_content` ) >= {$allowed_length}
AND ( `comment_content` LIKE '%<%' OR `comment_content` LIKE '%>%' )"
);
foreach ( $comments as $comment ) {
wp_delete_comment( $comment->comment_ID, true );
}
}
/**
* Executes changes made in WordPress 4.3.1.
*
* @ignore
* @since 4.3.1
*/
function upgrade_431() {
// Fix incorrect cron entries for term splitting
$cron_array = _get_cron_array();
if ( isset( $cron_array['wp_batch_split_terms'] ) ) {
unset( $cron_array['wp_batch_split_terms'] );
_set_cron_array( $cron_array );
}
}
/**
* Executes changes made in WordPress 4.4.0.
*
* @ignore
* @since 4.4.0
*
* @global int $wp_current_db_version Current version.
* @global wpdb $wpdb WordPress database abstraction object.
*/
function upgrade_440() {
global $wp_current_db_version, $wpdb;
if ( $wp_current_db_version < 34030 ) {
$wpdb->query( "ALTER TABLE {$wpdb->options} MODIFY option_name VARCHAR(191)" );
}
// Remove the unused 'add_users' role.
$roles = wp_roles();
foreach ( $roles->role_objects as $role ) {
if ( $role->has_cap( 'add_users' ) ) {
$role->remove_cap( 'add_users' );
}
}
}
/**
* Execute changes made in WordPress 4.5.0
*
* @ignore
* @since 4.5.0
*
* @global int $wp_current_db_version
*/
function upgrade_450() {
global $wp_current_db_version;
if ( $wp_current_db_version < 36180 )
wp_clear_scheduled_hook( 'wp_maybe_auto_update' );
}
/**
* Executes network-level upgrade routines.
*
* @since 3.0.0
*
* @global int $wp_current_db_version
* @global wpdb $wpdb
*/
function upgrade_network() {
global $wp_current_db_version, $wpdb;
// Always.
if ( is_main_network() ) {
/*
* Deletes all expired transients. The multi-table delete syntax is used
* to delete the transient record from table a, and the corresponding
* transient_timeout record from table b.
*/
$time = time();
$sql = "DELETE a, b FROM $wpdb->sitemeta a, $wpdb->sitemeta b
WHERE a.meta_key LIKE %s
AND a.meta_key NOT LIKE %s
AND b.meta_key = CONCAT( '_site_transient_timeout_', SUBSTRING( a.meta_key, 17 ) )
AND b.meta_value < %d";
$wpdb->query( $wpdb->prepare( $sql, $wpdb->esc_like( '_site_transient_' ) . '%', $wpdb->esc_like ( '_site_transient_timeout_' ) . '%', $time ) );
}
// 2.8.
if ( $wp_current_db_version < 11549 ) {
$wpmu_sitewide_plugins = get_site_option( 'wpmu_sitewide_plugins' );
$active_sitewide_plugins = get_site_option( 'active_sitewide_plugins' );
if ( $wpmu_sitewide_plugins ) {
if ( !$active_sitewide_plugins )
$sitewide_plugins = (array) $wpmu_sitewide_plugins;
else
$sitewide_plugins = array_merge( (array) $active_sitewide_plugins, (array) $wpmu_sitewide_plugins );
update_site_option( 'active_sitewide_plugins', $sitewide_plugins );
}
delete_site_option( 'wpmu_sitewide_plugins' );
delete_site_option( 'deactivated_sitewide_plugins' );
$start = 0;
while( $rows = $wpdb->get_results( "SELECT meta_key, meta_value FROM {$wpdb->sitemeta} ORDER BY meta_id LIMIT $start, 20" ) ) {
foreach ( $rows as $row ) {
$value = $row->meta_value;
if ( !@unserialize( $value ) )
$value = stripslashes( $value );
if ( $value !== $row->meta_value ) {
update_site_option( $row->meta_key, $value );
}
}
$start += 20;
}
}
// 3.0
if ( $wp_current_db_version < 13576 )
update_site_option( 'global_terms_enabled', '1' );
// 3.3
if ( $wp_current_db_version < 19390 )
update_site_option( 'initial_db_version', $wp_current_db_version );
if ( $wp_current_db_version < 19470 ) {
if ( false === get_site_option( 'active_sitewide_plugins' ) )
update_site_option( 'active_sitewide_plugins', array() );
}
// 3.4
if ( $wp_current_db_version < 20148 ) {
// 'allowedthemes' keys things by stylesheet. 'allowed_themes' keyed things by name.
$allowedthemes = get_site_option( 'allowedthemes' );
$allowed_themes = get_site_option( 'allowed_themes' );
if ( false === $allowedthemes && is_array( $allowed_themes ) && $allowed_themes ) {
$converted = array();
$themes = wp_get_themes();
foreach ( $themes as $stylesheet => $theme_data ) {
if ( isset( $allowed_themes[ $theme_data->get('Name') ] ) )
$converted[ $stylesheet ] = true;
}
update_site_option( 'allowedthemes', $converted );
delete_site_option( 'allowed_themes' );
}
}
// 3.5
if ( $wp_current_db_version < 21823 )
update_site_option( 'ms_files_rewriting', '1' );
// 3.5.2
if ( $wp_current_db_version < 24448 ) {
$illegal_names = get_site_option( 'illegal_names' );
if ( is_array( $illegal_names ) && count( $illegal_names ) === 1 ) {
$illegal_name = reset( $illegal_names );
$illegal_names = explode( ' ', $illegal_name );
update_site_option( 'illegal_names', $illegal_names );
}
}
// 4.2
if ( $wp_current_db_version < 31351 && $wpdb->charset === 'utf8mb4' ) {
if ( wp_should_upgrade_global_tables() ) {
$wpdb->query( "ALTER TABLE $wpdb->usermeta DROP INDEX meta_key, ADD INDEX meta_key(meta_key(191))" );
$wpdb->query( "ALTER TABLE $wpdb->site DROP INDEX domain, ADD INDEX domain(domain(140),path(51))" );
$wpdb->query( "ALTER TABLE $wpdb->sitemeta DROP INDEX meta_key, ADD INDEX meta_key(meta_key(191))" );
$wpdb->query( "ALTER TABLE $wpdb->signups DROP INDEX domain_path, ADD INDEX domain_path(domain(140),path(51))" );
$tables = $wpdb->tables( 'global' );
// sitecategories may not exist.
if ( ! $wpdb->get_var( "SHOW TABLES LIKE '{$tables['sitecategories']}'" ) ) {
unset( $tables['sitecategories'] );
}
foreach ( $tables as $table ) {
maybe_convert_table_to_utf8mb4( $table );
}
}
}
// 4.3
if ( $wp_current_db_version < 33055 && 'utf8mb4' === $wpdb->charset ) {
if ( wp_should_upgrade_global_tables() ) {
$upgrade = false;
$indexes = $wpdb->get_results( "SHOW INDEXES FROM $wpdb->signups" );
foreach ( $indexes as $index ) {
if ( 'domain_path' == $index->Key_name && 'domain' == $index->Column_name && 140 != $index->Sub_part ) {
$upgrade = true;
break;
}
}
if ( $upgrade ) {
$wpdb->query( "ALTER TABLE $wpdb->signups DROP INDEX domain_path, ADD INDEX domain_path(domain(140),path(51))" );
}
$tables = $wpdb->tables( 'global' );
// sitecategories may not exist.
if ( ! $wpdb->get_var( "SHOW TABLES LIKE '{$tables['sitecategories']}'" ) ) {
unset( $tables['sitecategories'] );
}
foreach ( $tables as $table ) {
maybe_convert_table_to_utf8mb4( $table );
}
}
}
}
//
// General functions we use to actually do stuff
//
/**
* Creates a table in the database if it doesn't already exist.
*
* This method checks for an existing database and creates a new one if it's not
* already present. It doesn't rely on MySQL's "IF NOT EXISTS" statement, but chooses
* to query all tables first and then run the SQL statement creating the table.
*
* @since 1.0.0
*
* @global wpdb $wpdb
*
* @param string $table_name Database table name to create.
* @param string $create_ddl SQL statement to create table.
* @return bool If table already exists or was created by function.
*/
function maybe_create_table($table_name, $create_ddl) {
global $wpdb;
$query = $wpdb->prepare( "SHOW TABLES LIKE %s", $wpdb->esc_like( $table_name ) );
if ( $wpdb->get_var( $query ) == $table_name ) {
return true;
}
// Didn't find it try to create it..
$wpdb->query($create_ddl);
// We cannot directly tell that whether this succeeded!
if ( $wpdb->get_var( $query ) == $table_name ) {
return true;
}
return false;
}
/**
* Drops a specified index from a table.
*
* @since 1.0.1
*
* @global wpdb $wpdb
*
* @param string $table Database table name.
* @param string $index Index name to drop.
* @return true True, when finished.
*/
function drop_index($table, $index) {
global $wpdb;
$wpdb->hide_errors();
$wpdb->query("ALTER TABLE `$table` DROP INDEX `$index`");
// Now we need to take out all the extra ones we may have created
for ($i = 0; $i < 25; $i++) {
$wpdb->query("ALTER TABLE `$table` DROP INDEX `{$index}_$i`");
}
$wpdb->show_errors();
return true;
}
/**
* Adds an index to a specified table.
*
* @since 1.0.1
*
* @global wpdb $wpdb
*
* @param string $table Database table name.
* @param string $index Database table index column.
* @return true True, when done with execution.
*/
function add_clean_index($table, $index) {
global $wpdb;
drop_index($table, $index);
$wpdb->query("ALTER TABLE `$table` ADD INDEX ( `$index` )");
return true;
}
/**
* Adds column to a database table if it doesn't already exist.
*
* @since 1.3.0
*
* @global wpdb $wpdb
*
* @param string $table_name The table name to modify.
* @param string $column_name The column name to add to the table.
* @param string $create_ddl The SQL statement used to add the column.
* @return bool True if already exists or on successful completion, false on error.
*/
function maybe_add_column($table_name, $column_name, $create_ddl) {
global $wpdb;
foreach ($wpdb->get_col("DESC $table_name", 0) as $column ) {
if ($column == $column_name) {
return true;
}
}
// Didn't find it try to create it.
$wpdb->query($create_ddl);
// We cannot directly tell that whether this succeeded!
foreach ($wpdb->get_col("DESC $table_name", 0) as $column ) {
if ($column == $column_name) {
return true;
}
}
return false;
}
/**
* If a table only contains utf8 or utf8mb4 columns, convert it to utf8mb4.
*
* @since 4.2.0
*
* @global wpdb $wpdb
*
* @param string $table The table to convert.
* @return bool true if the table was converted, false if it wasn't.
*/
function maybe_convert_table_to_utf8mb4( $table ) {
global $wpdb;
$results = $wpdb->get_results( "SHOW FULL COLUMNS FROM `$table`" );
if ( ! $results ) {
return false;
}
foreach ( $results as $column ) {
if ( $column->Collation ) {
list( $charset ) = explode( '_', $column->Collation );
$charset = strtolower( $charset );
if ( 'utf8' !== $charset && 'utf8mb4' !== $charset ) {
// Don't upgrade tables that have non-utf8 columns.
return false;
}
}
}
$table_details = $wpdb->get_row( "SHOW TABLE STATUS LIKE '$table'" );
if ( ! $table_details ) {
return false;
}
list( $table_charset ) = explode( '_', $table_details->Collation );
$table_charset = strtolower( $table_charset );
if ( 'utf8mb4' === $table_charset ) {
return true;
}
return $wpdb->query( "ALTER TABLE $table CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci" );
}
/**
* Retrieve all options as it was for 1.2.
*
* @since 1.2.0
*
* @global wpdb $wpdb
*
* @return stdClass List of options.
*/
function get_alloptions_110() {
global $wpdb;
$all_options = new stdClass;
if ( $options = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options" ) ) {
foreach ( $options as $option ) {
if ( 'siteurl' == $option->option_name || 'home' == $option->option_name || 'category_base' == $option->option_name )
$option->option_value = untrailingslashit( $option->option_value );
$all_options->{$option->option_name} = stripslashes( $option->option_value );
}
}
return $all_options;
}
/**
* Utility version of get_option that is private to install/upgrade.
*
* @ignore
* @since 1.5.1
* @access private
*
* @global wpdb $wpdb
*
* @param string $setting Option name.
* @return mixed
*/
function __get_option($setting) {
global $wpdb;
if ( $setting == 'home' && defined( 'WP_HOME' ) )
return untrailingslashit( WP_HOME );
if ( $setting == 'siteurl' && defined( 'WP_SITEURL' ) )
return untrailingslashit( WP_SITEURL );
$option = $wpdb->get_var( $wpdb->prepare("SELECT option_value FROM $wpdb->options WHERE option_name = %s", $setting ) );
if ( 'home' == $setting && '' == $option )
return __get_option( 'siteurl' );
if ( 'siteurl' == $setting || 'home' == $setting || 'category_base' == $setting || 'tag_base' == $setting )
$option = untrailingslashit( $option );
return maybe_unserialize( $option );
}
/**
* Filters for content to remove unnecessary slashes.
*
* @since 1.5.0
*
* @param string $content The content to modify.
* @return string The de-slashed content.
*/
function deslash($content) {
// Note: \\\ inside a regex denotes a single backslash.
/*
* Replace one or more backslashes followed by a single quote with
* a single quote.
*/
$content = preg_replace("/\\\+'/", "'", $content);
/*
* Replace one or more backslashes followed by a double quote with
* a double quote.
*/
$content = preg_replace('/\\\+"/', '"', $content);
// Replace one or more backslashes with one backslash.
$content = preg_replace("/\\\+/", "\\", $content);
return $content;
}
/**
* Modifies the database based on specified SQL statements.
*
* Useful for creating new tables and updating existing tables to a new structure.
*
* @since 1.5.0
*
* @global wpdb $wpdb
*
* @param string|array $queries Optional. The query to run. Can be multiple queries
* in an array, or a string of queries separated by
* semicolons. Default empty.
* @param bool $execute Optional. Whether or not to execute the query right away.
* Default true.
* @return array Strings containing the results of the various update queries.
*/
function dbDelta( $queries = '', $execute = true ) {
global $wpdb;
if ( in_array( $queries, array( '', 'all', 'blog', 'global', 'ms_global' ), true ) )
$queries = wp_get_db_schema( $queries );
// Separate individual queries into an array
if ( !is_array($queries) ) {
$queries = explode( ';', $queries );
$queries = array_filter( $queries );
}
/**
* Filter the dbDelta SQL queries.
*
* @since 3.3.0
*
* @param array $queries An array of dbDelta SQL queries.
*/
$queries = apply_filters( 'dbdelta_queries', $queries );
$cqueries = array(); // Creation Queries
$iqueries = array(); // Insertion Queries
$for_update = array();
// Create a tablename index for an array ($cqueries) of queries
foreach ($queries as $qry) {
if ( preg_match( "|CREATE TABLE ([^ ]*)|", $qry, $matches ) ) {
$cqueries[ trim( $matches[1], '`' ) ] = $qry;
$for_update[$matches[1]] = 'Created table '.$matches[1];
} elseif ( preg_match( "|CREATE DATABASE ([^ ]*)|", $qry, $matches ) ) {
array_unshift( $cqueries, $qry );
} elseif ( preg_match( "|INSERT INTO ([^ ]*)|", $qry, $matches ) ) {
$iqueries[] = $qry;
} elseif ( preg_match( "|UPDATE ([^ ]*)|", $qry, $matches ) ) {
$iqueries[] = $qry;
} else {
// Unrecognized query type
}
}
/**
* Filter the dbDelta SQL queries for creating tables and/or databases.
*
* Queries filterable via this hook contain "CREATE TABLE" or "CREATE DATABASE".
*
* @since 3.3.0
*
* @param array $cqueries An array of dbDelta create SQL queries.
*/
$cqueries = apply_filters( 'dbdelta_create_queries', $cqueries );
/**
* Filter the dbDelta SQL queries for inserting or updating.
*
* Queries filterable via this hook contain "INSERT INTO" or "UPDATE".
*
* @since 3.3.0
*
* @param array $iqueries An array of dbDelta insert or update SQL queries.
*/
$iqueries = apply_filters( 'dbdelta_insert_queries', $iqueries );
$global_tables = $wpdb->tables( 'global' );
foreach ( $cqueries as $table => $qry ) {
// Upgrade global tables only for the main site. Don't upgrade at all if conditions are not optimal.
if ( in_array( $table, $global_tables ) && ! wp_should_upgrade_global_tables() ) {
unset( $cqueries[ $table ], $for_update[ $table ] );
continue;
}
// Fetch the table column structure from the database
$suppress = $wpdb->suppress_errors();
$tablefields = $wpdb->get_results("DESCRIBE {$table};");
$wpdb->suppress_errors( $suppress );
if ( ! $tablefields )
continue;
// Clear the field and index arrays.
$cfields = $indices = array();
// Get all of the field names in the query from between the parentheses.
preg_match("|\((.*)\)|ms", $qry, $match2);
$qryline = trim($match2[1]);
// Separate field lines into an array.
$flds = explode("\n", $qryline);
// todo: Remove this?
//echo "
\n".print_r(strtolower($table), true).":\n".print_r($cqueries, true)."
";
// For every field line specified in the query.
foreach ($flds as $fld) {
// Extract the field name.
preg_match("|^([^ ]*)|", trim($fld), $fvals);
$fieldname = trim( $fvals[1], '`' );
// Verify the found field name.
$validfield = true;
switch (strtolower($fieldname)) {
case '':
case 'primary':
case 'index':
case 'fulltext':
case 'unique':
case 'key':
$validfield = false;
$indices[] = trim(trim($fld), ", \n");
break;
}
$fld = trim($fld);
// If it's a valid field, add it to the field array.
if ($validfield) {
$cfields[strtolower($fieldname)] = trim($fld, ", \n");
}
}
// For every field in the table.
foreach ($tablefields as $tablefield) {
// If the table field exists in the field array ...
if (array_key_exists(strtolower($tablefield->Field), $cfields)) {
// Get the field type from the query.
preg_match("|".$tablefield->Field." ([^ ]*( unsigned)?)|i", $cfields[strtolower($tablefield->Field)], $matches);
$fieldtype = $matches[1];
// Is actual field type different from the field type in query?
if ($tablefield->Type != $fieldtype) {
// Add a query to change the column type
$cqueries[] = "ALTER TABLE {$table} CHANGE COLUMN {$tablefield->Field} " . $cfields[strtolower($tablefield->Field)];
$for_update[$table.'.'.$tablefield->Field] = "Changed type of {$table}.{$tablefield->Field} from {$tablefield->Type} to {$fieldtype}";
}
// Get the default value from the array
// todo: Remove this?
//echo "{$cfields[strtolower($tablefield->Field)]}
";
if (preg_match("| DEFAULT '(.*?)'|i", $cfields[strtolower($tablefield->Field)], $matches)) {
$default_value = $matches[1];
if ($tablefield->Default != $default_value) {
// Add a query to change the column's default value
$cqueries[] = "ALTER TABLE {$table} ALTER COLUMN {$tablefield->Field} SET DEFAULT '{$default_value}'";
$for_update[$table.'.'.$tablefield->Field] = "Changed default value of {$table}.{$tablefield->Field} from {$tablefield->Default} to {$default_value}";
}
}
// Remove the field from the array (so it's not added).
unset($cfields[strtolower($tablefield->Field)]);
} else {
// This field exists in the table, but not in the creation queries?
}
}
// For every remaining field specified for the table.
foreach ($cfields as $fieldname => $fielddef) {
// Push a query line into $cqueries that adds the field to that table.
$cqueries[] = "ALTER TABLE {$table} ADD COLUMN $fielddef";
$for_update[$table.'.'.$fieldname] = 'Added column '.$table.'.'.$fieldname;
}
// Index stuff goes here. Fetch the table index structure from the database.
$tableindices = $wpdb->get_results("SHOW INDEX FROM {$table};");
if ($tableindices) {
// Clear the index array.
$index_ary = array();
// For every index in the table.
foreach ($tableindices as $tableindex) {
// Add the index to the index data array.
$keyname = $tableindex->Key_name;
$index_ary[$keyname]['columns'][] = array('fieldname' => $tableindex->Column_name, 'subpart' => $tableindex->Sub_part);
$index_ary[$keyname]['unique'] = ($tableindex->Non_unique == 0)?true:false;
$index_ary[$keyname]['index_type'] = $tableindex->Index_type;
}
// For each actual index in the index array.
foreach ($index_ary as $index_name => $index_data) {
// Build a create string to compare to the query.
$index_string = '';
if ($index_name == 'PRIMARY') {
$index_string .= 'PRIMARY ';
} elseif ( $index_data['unique'] ) {
$index_string .= 'UNIQUE ';
}
if ( 'FULLTEXT' === strtoupper( $index_data['index_type'] ) ) {
$index_string .= 'FULLTEXT ';
}
$index_string .= 'KEY ';
if ($index_name != 'PRIMARY') {
$index_string .= $index_name;
}
$index_columns = '';
// For each column in the index.
foreach ($index_data['columns'] as $column_data) {
if ($index_columns != '') $index_columns .= ',';
// Add the field to the column list string.
$index_columns .= $column_data['fieldname'];
if ($column_data['subpart'] != '') {
$index_columns .= '('.$column_data['subpart'].')';
}
}
// The alternative index string doesn't care about subparts
$alt_index_columns = preg_replace( '/\([^)]*\)/', '', $index_columns );
// Add the column list to the index create string.
$index_strings = array(
"$index_string ($index_columns)",
"$index_string ($alt_index_columns)",
);
foreach ( $index_strings as $index_string ) {
if ( ! ( ( $aindex = array_search( $index_string, $indices ) ) === false ) ) {
unset( $indices[ $aindex ] );
break;
// todo: Remove this?
//echo "{$table}:
Found index:".$index_string."\n";
}
}
// todo: Remove this?
//else echo "{$table}:
Did not find index:".$index_string."
".print_r($indices, true)."\n";
}
}
// For every remaining index specified for the table.
foreach ( (array) $indices as $index ) {
// Push a query line into $cqueries that adds the index to that table.
$cqueries[] = "ALTER TABLE {$table} ADD $index";
$for_update[] = 'Added index ' . $table . ' ' . $index;
}
// Remove the original table creation query from processing.
unset( $cqueries[ $table ], $for_update[ $table ] );
}
$allqueries = array_merge($cqueries, $iqueries);
if ($execute) {
foreach ($allqueries as $query) {
// todo: Remove this?
//echo "".print_r($query, true)."
\n";
$wpdb->query($query);
}
}
return $for_update;
}
/**
* Updates the database tables to a new schema.
*
* By default, updates all the tables to use the latest defined schema, but can also
* be used to update a specific set of tables in wp_get_db_schema().
*
* @since 1.5.0
*
* @uses dbDelta
*
* @param string $tables Optional. Which set of tables to update. Default is 'all'.
*/
function make_db_current( $tables = 'all' ) {
$alterations = dbDelta( $tables );
echo "\n";
foreach ($alterations as $alteration) echo "- $alteration
\n";
echo "
\n";
}
/**
* Updates the database tables to a new schema, but without displaying results.
*
* By default, updates all the tables to use the latest defined schema, but can
* also be used to update a specific set of tables in wp_get_db_schema().
*
* @since 1.5.0
*
* @see make_db_current()
*
* @param string $tables Optional. Which set of tables to update. Default is 'all'.
*/
function make_db_current_silent( $tables = 'all' ) {
dbDelta( $tables );
}
/**
* Creates a site theme from an existing theme.
*
* {@internal Missing Long Description}}
*
* @since 1.5.0
*
* @param string $theme_name The name of the theme.
* @param string $template The directory name of the theme.
* @return bool
*/
function make_site_theme_from_oldschool($theme_name, $template) {
$home_path = get_home_path();
$site_dir = WP_CONTENT_DIR . "/themes/$template";
if (! file_exists("$home_path/index.php"))
return false;
/*
* Copy files from the old locations to the site theme.
* TODO: This does not copy arbitrary include dependencies. Only the standard WP files are copied.
*/
$files = array('index.php' => 'index.php', 'wp-layout.css' => 'style.css', 'wp-comments.php' => 'comments.php', 'wp-comments-popup.php' => 'comments-popup.php');
foreach ($files as $oldfile => $newfile) {
if ($oldfile == 'index.php')
$oldpath = $home_path;
else
$oldpath = ABSPATH;
// Check to make sure it's not a new index.
if ($oldfile == 'index.php') {
$index = implode('', file("$oldpath/$oldfile"));
if (strpos($index, 'WP_USE_THEMES') !== false) {
if (! @copy(WP_CONTENT_DIR . '/themes/' . WP_DEFAULT_THEME . '/index.php', "$site_dir/$newfile"))
return false;
// Don't copy anything.
continue;
}
}
if (! @copy("$oldpath/$oldfile", "$site_dir/$newfile"))
return false;
chmod("$site_dir/$newfile", 0777);
// Update the blog header include in each file.
$lines = explode("\n", implode('', file("$site_dir/$newfile")));
if ($lines) {
$f = fopen("$site_dir/$newfile", 'w');
foreach ($lines as $line) {
if (preg_match('/require.*wp-blog-header/', $line))
$line = '//' . $line;
// Update stylesheet references.
$line = str_replace("/wp-layout.css", "", $line);
// Update comments template inclusion.
$line = str_replace("", "", $line);
fwrite($f, "{$line}\n");
}
fclose($f);
}
}
// Add a theme header.
$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";
$stylelines = file_get_contents("$site_dir/style.css");
if ($stylelines) {
$f = fopen("$site_dir/style.css", 'w');
fwrite($f, $header);
fwrite($f, $stylelines);
fclose($f);
}
return true;
}
/**
* Creates a site theme from the default theme.
*
* {@internal Missing Long Description}}
*
* @since 1.5.0
*
* @param string $theme_name The name of the theme.
* @param string $template The directory name of the theme.
* @return false|void
*/
function make_site_theme_from_default($theme_name, $template) {
$site_dir = WP_CONTENT_DIR . "/themes/$template";
$default_dir = WP_CONTENT_DIR . '/themes/' . WP_DEFAULT_THEME;
// Copy files from the default theme to the site theme.
//$files = array('index.php', 'comments.php', 'comments-popup.php', 'footer.php', 'header.php', 'sidebar.php', 'style.css');
$theme_dir = @ opendir($default_dir);
if ($theme_dir) {
while(($theme_file = readdir( $theme_dir )) !== false) {
if (is_dir("$default_dir/$theme_file"))
continue;
if (! @copy("$default_dir/$theme_file", "$site_dir/$theme_file"))
return;
chmod("$site_dir/$theme_file", 0777);
}
}
@closedir($theme_dir);
// Rewrite the theme header.
$stylelines = explode("\n", implode('', file("$site_dir/style.css")));
if ($stylelines) {
$f = fopen("$site_dir/style.css", 'w');
foreach ($stylelines as $line) {
if (strpos($line, 'Theme Name:') !== false) $line = 'Theme Name: ' . $theme_name;
elseif (strpos($line, 'Theme URI:') !== false) $line = 'Theme URI: ' . __get_option('url');
elseif (strpos($line, 'Description:') !== false) $line = 'Description: Your theme.';
elseif (strpos($line, 'Version:') !== false) $line = 'Version: 1';
elseif (strpos($line, 'Author:') !== false) $line = 'Author: You';
fwrite($f, $line . "\n");
}
fclose($f);
}
// Copy the images.
umask(0);
if (! mkdir("$site_dir/images", 0777)) {
return false;
}
$images_dir = @ opendir("$default_dir/images");
if ($images_dir) {
while(($image = readdir($images_dir)) !== false) {
if (is_dir("$default_dir/images/$image"))
continue;
if (! @copy("$default_dir/images/$image", "$site_dir/images/$image"))
return;
chmod("$site_dir/images/$image", 0777);
}
}
@closedir($images_dir);
}
/**
* Creates a site theme.
*
* {@internal Missing Long Description}}
*
* @since 1.5.0
*
* @return false|string
*/
function make_site_theme() {
// Name the theme after the blog.
$theme_name = __get_option('blogname');
$template = sanitize_title($theme_name);
$site_dir = WP_CONTENT_DIR . "/themes/$template";
// If the theme already exists, nothing to do.
if ( is_dir($site_dir)) {
return false;
}
// We must be able to write to the themes dir.
if (! is_writable(WP_CONTENT_DIR . "/themes")) {
return false;
}
umask(0);
if (! mkdir($site_dir, 0777)) {
return false;
}
if (file_exists(ABSPATH . 'wp-layout.css')) {
if (! make_site_theme_from_oldschool($theme_name, $template)) {
// TODO: rm -rf the site theme directory.
return false;
}
} else {
if (! make_site_theme_from_default($theme_name, $template))
// TODO: rm -rf the site theme directory.
return false;
}
// Make the new site theme active.
$current_template = __get_option('template');
if ($current_template == WP_DEFAULT_THEME) {
update_option('template', $template);
update_option('stylesheet', $template);
}
return $template;
}
/**
* Translate user level to user role name.
*
* @since 2.0.0
*
* @param int $level User level.
* @return string User role name.
*/
function translate_level_to_role($level) {
switch ($level) {
case 10:
case 9:
case 8:
return 'administrator';
case 7:
case 6:
case 5:
return 'editor';
case 4:
case 3:
case 2:
return 'author';
case 1:
return 'contributor';
case 0:
return 'subscriber';
}
}
/**
* Checks the version of the installed MySQL binary.
*
* @since 2.1.0
*
* @global wpdb $wpdb
*/
function wp_check_mysql_version() {
global $wpdb;
$result = $wpdb->check_database_version();
if ( is_wp_error( $result ) )
die( $result->get_error_message() );
}
/**
* Disables the Automattic widgets plugin, which was merged into core.
*
* @since 2.2.0
*/
function maybe_disable_automattic_widgets() {
$plugins = __get_option( 'active_plugins' );
foreach ( (array) $plugins as $plugin ) {
if ( basename( $plugin ) == 'widgets.php' ) {
array_splice( $plugins, array_search( $plugin, $plugins ), 1 );
update_option( 'active_plugins', $plugins );
break;
}
}
}
/**
* Disables the Link Manager on upgrade if, at the time of upgrade, no links exist in the DB.
*
* @since 3.5.0
*
* @global int $wp_current_db_version
* @global wpdb $wpdb WordPress database abstraction object.
*/
function maybe_disable_link_manager() {
global $wp_current_db_version, $wpdb;
if ( $wp_current_db_version >= 22006 && get_option( 'link_manager_enabled' ) && ! $wpdb->get_var( "SELECT link_id FROM $wpdb->links LIMIT 1" ) )
update_option( 'link_manager_enabled', 0 );
}
/**
* Runs before the schema is upgraded.
*
* @since 2.9.0
*
* @global int $wp_current_db_version
* @global wpdb $wpdb WordPress database abstraction object.
*/
function pre_schema_upgrade() {
global $wp_current_db_version, $wpdb;
// Upgrade versions prior to 2.9
if ( $wp_current_db_version < 11557 ) {
// Delete duplicate options. Keep the option with the highest option_id.
$wpdb->query("DELETE o1 FROM $wpdb->options AS o1 JOIN $wpdb->options AS o2 USING (`option_name`) WHERE o2.option_id > o1.option_id");
// Drop the old primary key and add the new.
$wpdb->query("ALTER TABLE $wpdb->options DROP PRIMARY KEY, ADD PRIMARY KEY(option_id)");
// Drop the old option_name index. dbDelta() doesn't do the drop.
$wpdb->query("ALTER TABLE $wpdb->options DROP INDEX option_name");
}
// Multisite schema upgrades.
if ( $wp_current_db_version < 25448 && is_multisite() && wp_should_upgrade_global_tables() ) {
// Upgrade verions prior to 3.7
if ( $wp_current_db_version < 25179 ) {
// New primary key for signups.
$wpdb->query( "ALTER TABLE $wpdb->signups ADD signup_id BIGINT(20) NOT NULL AUTO_INCREMENT PRIMARY KEY FIRST" );
$wpdb->query( "ALTER TABLE $wpdb->signups DROP INDEX domain" );
}
if ( $wp_current_db_version < 25448 ) {
// Convert archived from enum to tinyint.
$wpdb->query( "ALTER TABLE $wpdb->blogs CHANGE COLUMN archived archived varchar(1) NOT NULL default '0'" );
$wpdb->query( "ALTER TABLE $wpdb->blogs CHANGE COLUMN archived archived tinyint(2) NOT NULL default 0" );
}
}
// Upgrade versions prior to 4.2.
if ( $wp_current_db_version < 31351 ) {
if ( ! is_multisite() && wp_should_upgrade_global_tables() ) {
$wpdb->query( "ALTER TABLE $wpdb->usermeta DROP INDEX meta_key, ADD INDEX meta_key(meta_key(191))" );
}
$wpdb->query( "ALTER TABLE $wpdb->terms DROP INDEX slug, ADD INDEX slug(slug(191))" );
$wpdb->query( "ALTER TABLE $wpdb->terms DROP INDEX name, ADD INDEX name(name(191))" );
$wpdb->query( "ALTER TABLE $wpdb->commentmeta DROP INDEX meta_key, ADD INDEX meta_key(meta_key(191))" );
$wpdb->query( "ALTER TABLE $wpdb->postmeta DROP INDEX meta_key, ADD INDEX meta_key(meta_key(191))" );
$wpdb->query( "ALTER TABLE $wpdb->posts DROP INDEX post_name, ADD INDEX post_name(post_name(191))" );
}
// Upgrade versions prior to 4.4.
if ( $wp_current_db_version < 34978 ) {
// If compatible termmeta table is found, use it, but enforce a proper index and update collation.
if ( $wpdb->get_var( "SHOW TABLES LIKE '{$wpdb->termmeta}'" ) && $wpdb->get_results( "SHOW INDEX FROM {$wpdb->termmeta} WHERE Column_name = 'meta_key'" ) ) {
$wpdb->query( "ALTER TABLE $wpdb->termmeta DROP INDEX meta_key, ADD INDEX meta_key(meta_key(191))" );
maybe_convert_table_to_utf8mb4( $wpdb->termmeta );
}
}
}
/**
* Install global terms.
*
* @since 3.0.0
*
* @global wpdb $wpdb
* @global string $charset_collate
*/
if ( !function_exists( 'install_global_terms' ) ) :
function install_global_terms() {
global $wpdb, $charset_collate;
$ms_queries = "
CREATE TABLE $wpdb->sitecategories (
cat_ID bigint(20) NOT NULL auto_increment,
cat_name varchar(55) NOT NULL default '',
category_nicename varchar(200) NOT NULL default '',
last_updated timestamp NOT NULL,
PRIMARY KEY (cat_ID),
KEY category_nicename (category_nicename),
KEY last_updated (last_updated)
) $charset_collate;
";
// now create tables
dbDelta( $ms_queries );
}
endif;
/**
* Determine if global tables should be upgraded.
*
* This function performs a series of checks to ensure the environment allows
* for the safe upgrading of global WordPress database tables. It is necessary
* because global tables will commonly grow to millions of rows on large
* installations, and the ability to control their upgrade routines can be
* critical to the operation of large networks.
*
* In a future iteration, this function may use `wp_is_large_network()` to more-
* intelligently prevent global table upgrades. Until then, we make sure
* WordPress is on the main site of the main network, to avoid running queries
* more than once in multi-site or multi-network environments.
*
* @since 4.3.0
*
* @return bool Whether to run the upgrade routines on global tables.
*/
function wp_should_upgrade_global_tables() {
// Return false early if explicitly not upgrading
if ( defined( 'DO_NOT_UPGRADE_GLOBAL_TABLES' ) ) {
return false;
}
// Assume global tables should be upgraded
$should_upgrade = true;
// Set to false if not on main network (does not matter if not multi-network)
if ( ! is_main_network() ) {
$should_upgrade = false;
}
// Set to false if not on main site of current network (does not matter if not multi-site)
if ( ! is_main_site() ) {
$should_upgrade = false;
}
/**
* Filter if upgrade routines should be run on global tables.
*
* @param bool $should_upgrade Whether to run the upgrade routines on global tables.
*/
return apply_filters( 'wp_should_upgrade_global_tables', $should_upgrade );
}