LeadStatusHistoryWithSupposed::getLastStoredLeadStatusHistoryId

private function getLastStoredLeadStatusHistoryId()
{
	static $result = null;
	if (is_null($result))
	{
		global $DB;
		$result = $DB->Query('SELECT LEAD_STATUS_HISTORY_ID FROM b_crm_last_stored_lead_status_history_id;');
		$result = $result->fetch();
		if (!empty($result['LEAD_STATUS_HISTORY_ID']))
		{
			$result = (int)$result['LEAD_STATUS_HISTORY_ID'];
		}
		else
		{
			$result = 0;
		}
	}

	return $result;
}