/**
* Deletes the specified history entries or all entries if no ids are specified.
*
* @param array $a_hist_entry_ids The ids of the entries to delete or null to delete all entries
*/
public function deleteVersions($a_hist_entry_ids = null)
{
global $ilDB;
require_once "./Services/History/classes/class.ilHistory.php";
if ($a_hist_entry_ids == null || count($a_hist_entry_ids) < 1) {
$ilDB->manipulate("UPDATE file_data SET version = 1 WHERE file_id = " . $ilDB->quote($this->getId(), 'integer'));
$this->setVersion(0);
$this->clearDataDirectory();
ilHistory::_removeEntriesForObject($this->getId());
self::handleQuotaUpdate($this);
} else {
$actualVersionDeleted = false;
// get all versions
$versions = $this->getVersions();
// delete each version
foreach ($a_hist_entry_ids as $hist_id) {
$entry = null;
// get version
foreach ($versions as $index => $version) {
if ($version["hist_entry_id"] == $hist_id) {
// remove each history entry
ilHistory::_removeEntryByHistoryID($hist_id);
// delete directory
$version_dir = $this->getDirectory($version["version"]);
ilUtil::delDir($version_dir);
// is actual version?
if ($version["version"] == $this->getVersion()) {
$actualVersionDeleted = true;
}
// remove from array
unset($versions[$index]);
break;
}
}
}
// update actual version if it was deleted before
if ($actualVersionDeleted) {
// get newest version (already sorted by getVersions)
$version = reset($versions);
$this->updateWithVersion($version);
} else {
// updateWithVersion() will trigger quota, too
self::handleQuotaUpdate($this);
}
}
}
