I just slapped myself silly for not thinking about it earlier
$got_gmt_fields = ($wpdb->get_var("SELECT MAX(post_date_gmt) FROM $wpdb->posts") == '0000-00-00 00:00:00') ? false : true;
if (!$got_gmt_fields) {
// Add or substract time to all dates, to get GMT dates
$add_hours = intval($diff_gmt_weblogger);
$add_minutes = intval(60 * ($diff_gmt_weblogger - $add_hours));
$wpdb->query("UPDATE $wpdb->posts SET post_date_gmt = DATE_ADD(post_date, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE)");
$wpdb->query("UPDATE $wpdb->posts SET post_modified = post_date");
$wpdb->query("UPDATE $wpdb->posts SET post_modified_gmt = DATE_ADD(post_modified, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE) WHERE post_modified != '0000-00-00 00:00:00'");
$wpdb->query("UPDATE $wpdb->comments SET comment_date_gmt = DATE_ADD(comment_date, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE)");
$wpdb->query("UPDATE $wpdb->users SET user_registered = DATE_ADD(user_registered, INTERVAL '$add_hours:$add_minutes' HOUR_MINUTE)");
}
}
function upgrade_130() {
global $wpdb;
// Remove extraneous backslashes.
$posts = $wpdb->get_results("SELECT ID, post_title, post_content, post_excerpt, guid, post_date, post_name, post_status, post_author FROM $wpdb->posts");
if ($posts) {
foreach($posts as $post) {
$post_content = addslashes(deslash($post->post_content));
$post_title = addslashes(deslash($post->post_title));
$post_excerpt = addslashes(deslash($post->post_excerpt));
if ( empty($post->guid) )
$guid = get_permalink($post->ID);
else
$guid = $post->guid;
$wpdb->query("UPDATE $wpdb->posts SET post_title = '$post_title', post_content = '$post_content', post_excerpt = '$post_excerpt', guid = '$guid' WHERE ID = '$post->ID'");
}
}
// Remove extraneous backslashes.
$comments = $wpdb->get_results("SELECT comment_ID, comment_author, comment_content FROM $wpdb->comments");
if ($comments) {
foreach($comments as $comment) {
$comment_content = addslashes(deslash($comment->comment_content));
$comment_author = addslashes(deslash($comment->comment_author));
$wpdb->query("UPDATE $wpdb->comments SET comment_content = '$comment_content', comment_author = '$comment_author' WHERE comment_ID = '$comment->comment_ID'");
}
}
// Remove extraneous backslashes.
$links = $wpdb->get_results("SELECT link_id, link_name, link_description FROM $wpdb->links");
if ($links) {
foreach($links as $link) {
$link_name = addslashes(deslash($link->link_name));
$link_description = addslashes(deslash($link->link_description));
$wpdb->query("UPDATE $wpdb->links SET link_name = '$link_name', link_description = '$link_description' WHERE link_id = '$link->link_id'");
}
}
// The "paged" option for what_to_show is no more.
if ($wpdb->get_var("SELECT option_value FROM $wpdb->options WHERE option_name = 'what_to_show'") == 'paged') {
$wpdb->query("UPDATE $wpdb->options SET option_value = 'posts' WHERE option_name = 'what_to_show'");
}
$active_plugins = __get_option('active_plugins');
// If plugins are not stored in an array, they're stored in the old
// newline separated format. Convert to new format.
if ( !is_array( $active_plugins ) ) {
$active_plugins = explode("\n", trim($active_plugins));
update_option('active_plugins', $active_plugins);
}
// Obsolete tables
$wpdb->query('DROP TABLE IF EXISTS ' . $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) );
$dupe_ids = join($dupe_ids, ',');
$wpdb->query("DELETE FROM $wpdb->options WHERE option_id IN ($dupe_ids)");
}
}
make_site_theme();
}
function upgrade_160() {
global $wpdb, $wp_current_db_version;
populate_roles_160();
$users = $wpdb->get_results("SELECT * FROM $wpdb->users");
foreach ( $users as $user ) :
if ( !empty( $user->user_firstname ) )
update_usermeta( $user->ID, 'first_name', $wpdb->escape($user->user_firstname) );
if ( !empty( $user->user_lastname ) )
update_usermeta( $user->ID, 'last_name', $wpdb->escape($user->user_lastname) );
if ( !empty( $user->user_nickname ) )
update_usermeta( $user->ID, 'nickname', $wpdb->escape($user->user_nickname) );
if ( !empty( $user->user_level ) )
update_usermeta( $user->ID, $wpdb->prefix . 'user_level', $user->user_level );
if ( !empty( $user->user_icq ) )
update_usermeta( $user->ID, 'icq', $wpdb->escape($user->user_icq) );
if ( !empty( $user->user_aim ) )
update_usermeta( $user->ID, 'aim', $wpdb->escape($user->user_aim) );
if ( !empty( $user->user_msn ) )
update_usermeta( $user->ID, 'msn', $wpdb->escape($user->user_msn) );
if ( !empty( $user->user_yim ) )
update_usermeta( $user->ID, 'yim', $wpdb->escape($user->user_icq) );
if ( !empty( $user->user_description ) )
update_usermeta( $user->ID, 'description', $wpdb->escape($user->user_description) );
if ( isset( $user->user_idmode ) ):
$idmode = $user->user_idmode;
if ($idmode == 'nickname') $id = $user->user_nickname;
if ($idmode == 'login') $id = $user->user_login;
if ($idmode == 'firstname') $id = $user->user_firstname;
if ($idmode == 'lastname') $id = $user->user_lastname;
if ($idmode == 'namefl') $id = $user->user_firstname.' '.$user->user_lastname;
if ($idmode == 'namelf') $id = $user->user_lastname.' '.$user->user_firstname;
if (!$idmode) $id = $user->user_nickname;
$wpdb->query( $wpdb->prepare("UPDATE $wpdb->users SET display_name = %s WHERE ID = %d", $id, $user->ID) );
endif;
// FIXME: RESET_CAPS is temporary code to reset roles and caps if flag is set.
$caps = get_usermeta( $user->ID, $wpdb->prefix . 'capabilities');
if ( empty($caps) || defined('RESET_CAPS') ) {
$level = get_usermeta($user->ID, $wpdb->prefix . 'user_level');
$role = translate_level_to_role($level);
update_usermeta( $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->query( $wpdb->prepare("UPDATE $wpdb->posts SET comment_count = %d WHERE ID = %d", $comment->c, $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->query( $wpdb->prepare("UPDATE $wpdb->posts SET post_status = 'attachment',
post_mime_type = %s,
post_type = ''
WHERE ID = %d", $object->post_type, $object->ID) );
$meta = get_post_meta($object->ID, 'imagedata', true);
if ( ! empty($meta['file']) )
update_attached_file( $object->ID, $meta['file'] );
}
}
}
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';
} else if ( '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', $post->post_date), 'publish_future_post', array($post->ID));
}
}
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;
$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->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) $wpdb->insert_id;
}
if ( empty($count) ) {
$count = 0;
$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;
}
}
$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->query( $wpdb->prepare("INSERT INTO $wpdb->term_relationships (object_id, term_taxonomy_id) VALUES ( %d, %d)", $post_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 = $wpdb->escape($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->query( $wpdb->prepare("INSERT INTO $wpdb->terms (name, slug, term_group) VALUES (%s, %s, %d)", $name, $slug, $term_group) );
$term_id = (int) $wpdb->insert_id;
}
$link_cat_id_map[$cat_id] = $term_id;
$default_link_cat = $term_id;
$wpdb->query( $wpdb->prepare("INSERT INTO $wpdb->term_taxonomy (term_id, taxonomy, description, parent, count) VALUES (%d, 'link_category', '', '0', '0')", $term_id) );
$tt_ids[$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->query( $wpdb->prepare("INSERT INTO $wpdb->term_relationships (object_id, term_taxonomy_id) VALUES ( %d, %d)", $link->link_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->query( $wpdb->prepare("INSERT INTO $wpdb->term_relationships (object_id, term_taxonomy_id) VALUES ( %d, %d)", $link_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->query( $wpdb->prepare("UPDATE $wpdb->term_taxonomy SET count = %d WHERE term_taxonomy_id = %d", $count, $term->term_taxonomy_id) );
}
}
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();
}
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');
}
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'");
}
function upgrade_250() {
global $wp_current_db_version;
if ( $wp_current_db_version < 6689 ) {
populate_roles_250();
}
}
// The functions we use to actually do stuff
// General
function maybe_create_table($table_name, $create_ddl) {
global $wpdb;
foreach ($wpdb->get_col("SHOW TABLES",0) as $table ) {
if ($table == $table_name) {
return true;
}
}
//didn't find it try to create it.
$q = $wpdb->query($create_ddl);
// we cannot directly tell that whether this succeeded!
foreach ($wpdb->get_col("SHOW TABLES",0) as $table ) {
if ($table == $table_name) {
return true;
}
}
return false;
}
function drop_index($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`");
}
$wpdb->show_errors();
return true;
}
function add_clean_index($table, $index) {
global $wpdb;
drop_index($table, $index);
$wpdb->query("ALTER TABLE `$table` ADD INDEX ( `$index` )");
return true;
}
/**
** maybe_add_column()
** Add column to db table if it doesn't exist.
** Returns: true if already exists or on successful completion
** false on error
*/
function maybe_add_column($table_name, $column_name, $create_ddl) {
global $wpdb, $debug;
foreach ($wpdb->get_col("DESC $table_name", 0) as $column ) {
if ($debug) echo("checking $column == $column_name
");
if ($column == $column_name) {
return true;
}
}
//didn't find it try to create it.
$q = $wpdb->query($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;
}
// get_alloptions as it was for 1.2.
function get_alloptions_110() {
global $wpdb;
if ($options = $wpdb->get_results("SELECT option_name, option_value FROM $wpdb->options")) {
foreach ($options as $option) {
// "When trying to design a foolproof system,
// never underestimate the ingenuity of the fools :)" -- Dougal
if ('siteurl' == $option->option_name) $option->option_value = preg_replace('|/+$|', '', $option->option_value);
if ('home' == $option->option_name) $option->option_value = preg_replace('|/+$|', '', $option->option_value);
if ('category_base' == $option->option_name) $option->option_value = preg_replace('|/+$|', '', $option->option_value);
$all_options->{$option->option_name} = stripslashes($option->option_value);
}
}
return $all_options;
}
// Version of get_option that is private to install/upgrade.
function __get_option($setting) {
global $wpdb;
if ( $setting == 'home' && defined( 'WP_HOME' ) ) {
return preg_replace( '|/+$|', '', constant( 'WP_HOME' ) );
}
if ( $setting == 'siteurl' && defined( 'WP_SITEURL' ) ) {
return preg_replace( '|/+$|', '', constant( '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 )
$option = preg_replace('|/+$|', '', $option);
@ $kellogs = unserialize($option);
if ($kellogs !== FALSE)
return $kellogs;
else
return $option;
}
function deslash($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 $content;
}
function dbDelta($queries, $execute = true) {
global $wpdb;
// Seperate individual queries into an array
if( !is_array($queries) ) {
$queries = explode( ';', $queries );
if('' == $queries[count($queries) - 1]) array_pop($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)) {
$cqueries[strtolower($matches[1])] = $qry;
$for_update[$matches[1]] = 'Created table '.$matches[1];
}
else if(preg_match("|CREATE DATABASE ([^ ]*)|", $qry, $matches)) {
array_unshift($cqueries, $qry);
}
else if(preg_match("|INSERT INTO ([^ ]*)|", $qry, $matches)) {
$iqueries[] = $qry;
}
else if(preg_match("|UPDATE ([^ ]*)|", $qry, $matches)) {
$iqueries[] = $qry;
}
else {
// Unrecognized query type
}
}
// Check to see which tables and fields exist
if($tables = $wpdb->get_col('SHOW TABLES;')) {
// For every table in the database
foreach($tables as $table) {
// If a table query exists for the database table...
if( array_key_exists(strtolower($table), $cqueries) ) {
// Clear the field and index arrays
unset($cfields);
unset($indices);
// Get all of the field names in the query from between the parens
preg_match("|\((.*)\)|ms", $cqueries[strtolower($table)], $match2);
$qryline = trim($match2[1]);
// Separate field lines into an array
$flds = explode("\n", $qryline);
//echo "
\n".print_r(strtolower($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 = $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");
}
}
// Fetch the table column structure from the database
$tablefields = $wpdb->get_results("DESCRIBE {$table};");
// 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 {$fieldtype}";
}
// Get the default value from the array
//echo "{$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($tableindices) {
// Clear the index array
unset($index_ary);
// 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'] = ($tableindex->Non_unique == 0)?true:false;
}
// For each actual index in the index array
foreach($index_ary as $index_name => $index_data) {
// Build a create string to compare to the query
$index_string = '';
if($index_name == 'PRIMARY') {
$index_string .= 'PRIMARY ';
}
else if($index_data['unique']) {
$index_string .= 'UNIQUE ';
}
$index_string .= 'KEY ';
if($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'].')';
}
}
// Add the column list to the index create string
$index_string .= ' ('.$index_columns.')';
if(!(($aindex = array_search($index_string, $indices)) === false)) {
unset($indices[$aindex]);
//echo "{$table}:
Found index:".$index_string."\n";
}
//else echo "{$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";
$for_update[$table.'.'.$fieldname] = 'Added index '.$table.' '.$index;
}
// Remove the original table creation query from processing
unset($cqueries[strtolower($table)]);
unset($for_update[strtolower($table)]);
} else {
// This table exists in the database, but not in the creation queries?
}
}
}
$allqueries = array_merge($cqueries, $iqueries);
if($execute) {
foreach($allqueries as $query) {
//echo "".print_r($query, true)."
\n";
$wpdb->query($query);
}
}
return $for_update;
}
function make_db_current() {
global $wp_queries;
$alterations = dbDelta($wp_queries);
echo "\n";
foreach($alterations as $alteration) echo "- $alteration
\n";
echo "
\n";
}
function make_db_current_silent() {
global $wp_queries;
$alterations = dbDelta($wp_queries);
}
function make_site_theme_from_oldschool($theme_name, $template) {
$home_path = get_home_path();
$site_dir = ABSPATH . "wp-content/themes/$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 arbitarary 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
$oldpath = ABSPATH;
if ($oldfile == 'index.php') { // Check to make sure it's not a new index
$index = implode('', file("$oldpath/$oldfile"));
if (strpos($index, 'WP_USE_THEMES') !== false) {
if (! @copy(ABSPATH . 'wp-content/themes/default/index.php', "$site_dir/$newfile"))
return false;
continue; // Don't copy anything
}
}
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 upgrade.\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;
}
function make_site_theme_from_default($theme_name, $template) {
$site_dir = ABSPATH . "wp-content/themes/$template";
$default_dir = ABSPATH . 'wp-content/themes/default';
// Copy files from the default theme to the site theme.
//$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);
}
// Create a site theme from the default theme.
function make_site_theme() {
// Name the theme after the blog.
$theme_name = __get_option('blogname');
$template = sanitize_title($theme_name);
$site_dir = ABSPATH . "wp-content/themes/$template";
// If the theme already exists, nothing to do.
if ( is_dir($site_dir)) {
return false;
}
// We must be able to write to the themes dir.
if (! is_writable(ABSPATH . "wp-content/themes")) {
return false;
}
umask(0);
if (! mkdir($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 == 'default') {
update_option('template', $template);
update_option('stylesheet', $template);
}
return $template;
}
function translate_level_to_role($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';
}
}
function wp_check_mysql_version() {
global $wpdb;
$result = $wpdb->check_database_version();
if ( is_wp_error( $result ) )
die( $result->get_error_message() );
}
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;
}
}
}
?>