SectionStructureUpdate::execute

public function execute(array &$result)
{
	global $DB;
	$BATCH_SIZE = 1000;
	if (
		Loader::includeModule("calendar")
		&& Option::get('calendar', 'sectionStructureConverted', 'N') === 'Y'
	)
	{
		return self::FINISH_EXECUTION;
	}

	$status = $this->loadCurrentStatus();

	$newStatus = array(
		'count' => $status['count'],
		'steps' => $status['steps'],
		'lastEventId' => null,
		'finished' => $status['finished']
	);

	if (!$status['finished'])
	{
		$r = $DB->Query('SELECT ID FROM b_calendar_event 
          		WHERE SECTION_ID IS NULL ORDER BY ID ASC limit 1;',
			false,
			"File: ".__FILE__."
Line: ".__LINE__
		);

		if ($entry = $r->Fetch())
		{
			$newStatus['lastEventId'] = $entry['ID'];
			if ((int)$status['lastEventId'] === (int)$newStatus['lastEventId'])
			{
				Option::set('calendar', 'sectionStructureConverted', 'Y');
				Option::delete('calendar', ['name' => 'sectionStructureUpdaterStatus']);

				return self::FINISH_EXECUTION;
			}

			$DB->Query('UPDATE b_calendar_event CE
				INNER JOIN b_calendar_event_sect CES ON CE.ID = CES.EVENT_ID
				SET CE.SECTION_ID = CES.SECT_ID
				WHERE CE.SECTION_ID is null and CE.ID < '.((int)$entry['ID'] + $BATCH_SIZE),
				false,
				"File: ".__FILE__."
Line: ".__LINE__
			);

			$newStatus['steps'] = $newStatus['count'] - $this->getTotalCount();

			Option::set('calendar', 'sectionStructureUpdaterStatus', serialize($newStatus));
			$result = array(
				'title' => Loc::getMessage("CALENDAR_UPDATE_STRUCTURE_TITLE"),
				'count' => $newStatus['count'],
				'steps' => $newStatus['steps']
			);
			return self::CONTINUE_EXECUTION;
		}

		Option::set('calendar', 'sectionStructureUpdaterStatus', serialize($newStatus));
	}

	Option::set('calendar', 'sectionStructureConverted', 'Y');
	Option::delete('calendar', ['name' => 'sectionStructureUpdaterStatus']);

	return self::FINISH_EXECUTION;
}