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Delete expired transients on database upgrades. 

Reverts [25416], which had all transients being cleared. This leaves much to be desired, but we don't want a core update to be blamed for breaking a site that incorrectly assumes transients aren't transient.

props dartiss, pento.
fixes #20316.

Built from https://develop.svn.wordpress.org/trunk@25838


git-svn-id: http://core.svn.wordpress.org/trunk@25750 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Andrew Nacin 2013-10-18 07:48:09 +00:00
parent 5f3e90a112
commit 859da01c4a
2 changed files with 32 additions and 2 deletions
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20
wp-admin/includes/schema.php
View File

@ -546,8 +546,24 @@ function populate_options() {
// delete obsolete magpie stuff
$wpdb->query("DELETE FROM $wpdb->options WHERE option_name REGEXP '^rss_[0-9a-f]{32}(_ts)?$'");
// clear transient data
$wpdb->query( "DELETE FROM $wpdb->options WHERE option_name LIKE '\_transient\_%' OR option_name LIKE '\_site\_transient\_%'" );
// 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();
$wpdb->query("DELETE a, b FROM $wpdb->options a, $wpdb->options b WHERE
a.option_name LIKE '\_transient\_%' AND
a.option_name NOT LIKE '\_transient\_timeout\_%' AND
b.option_name = CONCAT( '_transient_timeout_', SUBSTRING( a.option_name, 12 ) )
AND b.option_value < $time");
if ( is_main_site() && is_main_network() ) {
$wpdb->query("DELETE a, b FROM $wpdb->options a, $wpdb->options b WHERE
a.option_name LIKE '\_site\_transient\_%' AND
a.option_name NOT LIKE '\_site\_transient\_timeout\_%' AND
b.option_name = CONCAT( '_site_transient_timeout_', SUBSTRING( a.option_name, 17 ) )
AND b.option_value < $time");
}
}
/**

14
wp-admin/includes/upgrade.php
View File

@ -1229,6 +1229,20 @@ function upgrade_370() {
*/
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();
$wpdb->query("DELETE a, b FROM $wpdb->sitemeta a, $wpdb->sitemeta b WHERE
a.meta_key LIKE '\_site\_transient\_%' AND
a.meta_key NOT LIKE '\_site\_transient\_timeout\_%' AND
b.meta_key = CONCAT( '_site_transient_timeout_', SUBSTRING( a.meta_key, 17 ) )
AND b.meta_value < $time");
}
// 2.8
if ( $wp_current_db_version < 11549 ) {
$wpmu_sitewide_plugins = get_site_option( 'wpmu_sitewide_plugins' );