CTaskFiles::DeleteByTaskID

static function DeleteByTaskID($TASK_ID, $SAVE_FILES = array())
{
	global $DB;

	$rsTaskFiles = CTaskFiles::GetList(array(), array("TASK_ID" => $TASK_ID));

	$sqrWhereAdditional = '';
	if (is_array($SAVE_FILES) && count($SAVE_FILES))
		$sqrWhereAdditional .= 'AND FILE_ID NOT IN (' . implode(',', array_map('intval', $SAVE_FILES)) . ')';

	$TASK_ID = intval($TASK_ID);
	$strSql = "DELETE FROM b_tasks_file WHERE TASK_ID = " . $TASK_ID . ' ' . $sqrWhereAdditional;
	$result = $DB->Query($strSql, false, "File: ".__FILE__."
Line: ".__LINE__);

	if ($result)
	{
		$arFilesToDelete = array();
		while ($arTaskFiles = $rsTaskFiles->Fetch())
		{
			// Skip files, that attached to some existing tasks
			$rsFiles = CTaskFiles::GetList(array(), array("FILE_ID" => $arTaskFiles["FILE_ID"]));
			if (!$arFile = $rsFiles->Fetch())
			{
				if (!in_array($arTaskFiles["FILE_ID"], $SAVE_FILES))
				{
					$arFilesToDelete[] = $arTaskFiles["FILE_ID"];
				}
			}
		}

		foreach ($arFilesToDelete as $file)
		{
			CFile::Delete($file);
		}
	}

	return $result;
}