CTasks::onBeforeSocNetGroupDelete

static function onBeforeSocNetGroupDelete($inGroupId)
{
	global $DB, $APPLICATION;

	$bCanDelete = false;    // prohibit group removing by default

	$groupId = (int)$inGroupId;

	$strSql =
		"SELECT ID AS TASK_ID
		FROM b_tasks
		WHERE GROUP_ID = $groupId
		";

	$result = $DB->Query($strSql, false, 'File: ' . __FILE__ . '
Line: ' . __LINE__);
	if ($result === false)
	{
		$APPLICATION->ThrowException('EA_SQL_ERROR_OCCURED');
		return (false);
	}

	$arResult = $result->Fetch();

	// permit group deletion only when there is no tasks
	if ($arResult === false)
	{
		$bCanDelete = true;
	}
	else
	{
		$APPLICATION->ThrowException(GetMessage('TASKS_ERR_GROUP_IN_USE'));
	}

	return ($bCanDelete);
}