PKPUsageStatsPlugin::_getDownloadStats PHP Méthode

    function _getDownloadStats($pubObjectId)
    {
        $cache = CacheManager::getManager()->getCache('downloadStats', $pubObjectId, array($this, '_downloadStatsCacheMiss'));
        if (time() - $cache->getCacheTime() > 60 * 60 * 24) {
            // Cache is older than one day, erase it.
            $cache->flush();
        }
        $statsReports = $cache->get($pubObjectId);
        $currentYear = date("Y");
        $months = range(1, 12);
        $statsByFormat = $statsByMonth = $years = array();
        $totalDownloads = 0;
        foreach ($statsReports as $statsReport) {
            $month = (int) substr($statsReport[STATISTICS_DIMENSION_MONTH], -2);
            $year = (int) substr($statsReport[STATISTICS_DIMENSION_MONTH], 0, 4);
            $metric = $statsReport[STATISTICS_METRIC];
            // Keep track of the years, avoiding duplicates.
            $years[$year] = null;
            $representationId = $statsReport[STATISTICS_DIMENSION_REPRESENTATION_ID];
            // Prepare the stats aggregating by Representation.
            // Create entries for all months, so all representations will have the same entries count.
            if (!array_key_exists($representationId, $statsByFormat)) {
                $representationDao = Application::getRepresentationDAO();
                $representation = $representationDao->getById($representationId);
                if (empty($representation)) {
                    continue;
                }
                $statsByFormat[$representationId] = array('data' => array(), 'label' => $representation->getLocalizedName(), 'color' => $this->_getColor($representationId), 'total' => 0);
            }
            // Make sure we have entries for all years with stats.
            if (!array_key_exists($year, $statsByFormat[$representationId]['data'])) {
                $statsByFormat[$representationId]['data'][$year] = array_fill_keys($months, 0);
            }
            $statsByFormat[$representationId]['data'][$year][$month] = $metric;
            $statsByFormat[$representationId]['total'] += $metric;
            // Prepare the stats aggregating only by Month.
            if (!array_key_exists($year, $statsByMonth)) {
                $statsByMonth[$year] = array_fill_keys($months, 0);
            }
            $statsByMonth[$year][$month] += $metric;
            $totalDownloads += $metric;
        }
        if ($statsByMonth) {
            $datasetId = 'allDownloads';
            // GraphJS works with datasets.
            $statsByMonth = array($datasetId => array('data' => $statsByMonth, 'label' => __('common.allDownloads'), 'color' => $this->_getColor(REALLY_BIG_NUMBER), 'total' => $totalDownloads));
        }
        return array($statsByFormat, $statsByMonth, array_keys($years));
    }