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MDL-32471 remove orphaned preview files via cron

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This commit is contained in:
David Mudrak 2012-04-24 15:14:09 +02:00
parent 7a00d4385d
commit 9120a46257
1 changed files with 16 additions and 0 deletions
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16
lib/filestorage/file_storage.php
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@ -1413,6 +1413,22 @@ class file_storage {
$rs->close();
mtrace('done.');
// remove orphaned preview files (that is files in the core preview filearea without
// the existing original file)
mtrace('Deleting orphaned preview files... ', '');
$sql = "SELECT p.*
FROM {files} p
LEFT JOIN {files} o ON (p.filename = o.contenthash)
WHERE p.contextid = ? AND p.component = 'core' AND p.filearea = 'preview' AND p.itemid = 0
AND p.filename <> '.' AND o.id IS NULL";
$syscontext = context_system::instance();
$rs = $DB->get_recordset_sql($sql, array($syscontext->id));
foreach ($rs as $orphan) {
$this->get_file_instance($orphan)->delete();
}
$rs->close();
mtrace('done.');
// remove trash pool files once a day
// if you want to disable purging of trash put $CFG->fileslastcleanup=time(); into config.php
if (empty($CFG->fileslastcleanup) or $CFG->fileslastcleanup < time() - 60*60*24) {