SysLogErrorsDataProvider.php

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<?php
 
declare(strict_types=1);
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
namespace ‪TYPO3\CMS\Dashboard\Widgets\Provider;
 
use ‪TYPO3\CMS\Core\Database\Connection;
use ‪TYPO3\CMS\Core\Database\ConnectionPool;
use ‪TYPO3\CMS\Core\Localization\LanguageService;
use ‪TYPO3\CMS\Core\SysLog\Type as SystemLogType;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
use ‪TYPO3\CMS\Dashboard\WidgetApi;
use ‪TYPO3\CMS\Dashboard\Widgets\ChartDataProviderInterface;
 
class ‪SysLogErrorsDataProvider implements ‪ChartDataProviderInterface
{
    protected ‪$days = 31;
 
    protected ‪$labels = [];
 
    protected ‪$data = [];
 
    public function ‪__construct(int ‪$days = 31)
    {
        $this->days = ‪$days;
    }
 
    public function ‪getChartData(): array
    {
        $this->‪calculateDataForLastDays();
 
        return [
            'labels' => ‪$this->labels,
            'datasets' => [
                [
                    'label' => $this->‪getLanguageService()->sL('LLL:EXT:dashboard/Resources/Private/Language/locallang.xlf:widgets.sysLogErrors.chart.dataSet.0'),
                    'backgroundColor' => ‪WidgetApi::getDefaultChartColors()[0],
                    'border' => 0,
                    'data' => ‪$this->data
                ]
            ]
        ];
    }
 
    protected function ‪getNumberOfErrorsInPeriod(int $start, int $end): int
    {
        $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable('sys_log');
        return (int)$queryBuilder
            ->count('*')
            ->from('sys_log')
            ->where(
                $queryBuilder->expr()->eq(
                    'type',
                    $queryBuilder->createNamedParameter(SystemLogType::ERROR, ‪Connection::PARAM_INT)
                ),
                $queryBuilder->expr()->gte(
                    'tstamp',
                    $queryBuilder->createNamedParameter($start, ‪Connection::PARAM_INT)
                ),
                $queryBuilder->expr()->lte(
                    'tstamp',
                    $queryBuilder->createNamedParameter($end, ‪Connection::PARAM_INT)
                )
            )
            ->execute()
            ->fetchColumn();
    }
 
    protected function ‪calculateDataForLastDays(): void
    {
        $format = ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['ddmmyy'] ?: 'Y-m-d';
 
        for ($daysBefore = $this->days; $daysBefore >= 0; $daysBefore--) {
            $this->labels[] = date($format, (int)strtotime('-' . $daysBefore . ' day'));
            $startPeriod = (int)strtotime('-' . $daysBefore . ' day 0:00:00');
            $endPeriod =  (int)strtotime('-' . $daysBefore . ' day 23:59:59');
 
            $this->data[] = $this->‪getNumberOfErrorsInPeriod($startPeriod, $endPeriod);
        }
    }
 
    protected function ‪getLanguageService(): ‪LanguageService
    {
        return ‪$GLOBALS['LANG'];
    }
}