Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
/**
* @file include/dbclean.php
* @brief The script is called from time to time to clean the database entries and remove orphaned data.
*/
use Friendica\Core\Config;
function dbclean_run(&$argv, &$argc) {
if (!Config::get('system', 'dbclean', false)) {
return;
}
if ($argc == 2) {
$stage = intval($argv[1]);
} else {
$stage = 0;
}
if ($stage == 0) {
proc_run(PRIORITY_LOW, 'include/dbclean.php', 1);
proc_run(PRIORITY_LOW, 'include/dbclean.php', 2);
proc_run(PRIORITY_LOW, 'include/dbclean.php', 3);
proc_run(PRIORITY_LOW, 'include/dbclean.php', 4);
proc_run(PRIORITY_LOW, 'include/dbclean.php', 5);
proc_run(PRIORITY_LOW, 'include/dbclean.php', 6);
proc_run(PRIORITY_LOW, 'include/dbclean.php', 7);
} else {
remove_orphans($stage);
}
}
/**
* @brief Remove orphaned database entries
*/
function remove_orphans($stage = 0) {
global $db;
$count = 0;
// We split the deletion in many small tasks
$limit = 1000;
if (($stage == 1) OR ($stage == 0)) {
logger("Deleting old global item entries from item table without user copy");
$r = dba::p("SELECT `id` FROM `item` WHERE `uid` = 0
AND NOT EXISTS (SELECT `guid` FROM `item` AS `i` WHERE `item`.`guid` = `i`.`guid` AND `i`.`uid` != 0)
AND `received` < UTC_TIMESTAMP() - INTERVAL 90 DAY LIMIT ".intval($limit));
$count = dba::num_rows($r);
if ($count > 0) {
logger("found global item orphans: ".$count);
while ($orphan = dba::fetch($r)) {
q("DELETE FROM `item` WHERE `id` = %d", intval($orphan["id"]));
}
}
dba::close($r);
logger("Done deleting old global item entries from item table without user copy");
}
if (($stage == 2) OR ($stage == 0)) {
logger("Deleting items without parents");
$r = dba::p("SELECT `id` FROM `item` WHERE NOT EXISTS (SELECT `id` FROM `item` AS `i` WHERE `item`.`parent` = `i`.`id`) LIMIT ".intval($limit));
$count = dba::num_rows($r);
if ($count > 0) {
logger("found item orphans without parents: ".$count);
while ($orphan = dba::fetch($r)) {
q("DELETE FROM `item` WHERE `id` = %d", intval($orphan["id"]));
}
}
dba::close($r);
logger("Done deleting items without parents");
}
if (($stage == 3) OR ($stage == 0)) {
logger("Deleting orphaned data from thread table");
$r = dba::p("SELECT `iid` FROM `thread` WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`parent` = `thread`.`iid`) LIMIT ".intval($limit));
$count = dba::num_rows($r);
if ($count > 0) {
logger("found thread orphans: ".$count);
while ($orphan = dba::fetch($r)) {
q("DELETE FROM `thread` WHERE `iid` = %d", intval($orphan["iid"]));
}
}
dba::close($r);
logger("Done deleting orphaned data from thread table");
}
if (($stage == 4) OR ($stage == 0)) {
logger("Deleting orphaned data from notify table");
$r = dba::p("SELECT `iid` FROM `notify` WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`id` = `notify`.`iid`) LIMIT ".intval($limit));
$count = dba::num_rows($r);
if ($count > 0) {
logger("found notify orphans: ".$count);
while ($orphan = dba::fetch($r)) {
q("DELETE FROM `notify` WHERE `iid` = %d", intval($orphan["iid"]));
}
}
dba::close($r);
logger("Done deleting orphaned data from notify table");
}
if (($stage == 5) OR ($stage == 0)) {
logger("Deleting orphaned data from notify-threads table");
$r = dba::p("SELECT `id` FROM `notify-threads` WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`parent` = `notify-threads`.`master-parent-item`) LIMIT ".intval($limit));
$count = dba::num_rows($r);
if ($count > 0) {
logger("found notify-threads orphans: ".$count);
while ($orphan = dba::fetch($r)) {
q("DELETE FROM `notify-threads` WHERE `id` = %d", intval($orphan["id"]));
}
}
dba::close($r);
logger("Done deleting orphaned data from notify-threads table");
}
if (($stage == 6) OR ($stage == 0)) {
logger("Deleting orphaned data from sign table");
$r = dba::p("SELECT `iid` FROM `sign` WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`id` = `sign`.`iid`) LIMIT ".intval($limit));
$count = dba::num_rows($r);
if ($count > 0) {
logger("found sign orphans: ".$count);
while ($orphan = dba::fetch($r)) {
q("DELETE FROM `sign` WHERE `iid` = %d", intval($orphan["iid"]));
}
}
dba::close($r);
logger("Done deleting orphaned data from sign table");
}
if (($stage == 7) OR ($stage == 0)) {
logger("Deleting orphaned data from term table");
$r = dba::p("SELECT `oid` FROM `term` WHERE NOT EXISTS (SELECT `id` FROM `item` WHERE `item`.`id` = `term`.`oid`) LIMIT ".intval($limit));
$count = dba::num_rows($r);
if ($count > 0) {
logger("found term orphans: ".$count);
while ($orphan = dba::fetch($r)) {
q("DELETE FROM `term` WHERE `oid` = %d", intval($orphan["oid"]));
}
}
dba::close($r);
logger("Done deleting orphaned data from term table");
}
// Call it again if not all entries were purged
if (($stage != 0) AND ($count > 0)) {
proc_run(PRIORITY_MEDIUM, 'include/dbclean.php');
}
}