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<?php
/**
* Matomo - free/libre analytics platform
*
* @link https://matomo.org
* @license https://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*/
namespace Piwik\Plugins\CoreHome\Columns\Metrics;
use Piwik\DataTable\Row;
use Piwik\Metrics\Formatter;
use Piwik\Piwik;
use Piwik\Plugin\ProcessedMetric;
use Piwik\Columns\Dimension;
/**
* The average number of seconds spent on the site per visit. Calculated as:
*
* sum_visit_length / nb_visits
*
* sum_visit_length & nb_visits are calculated during archiving.
*
* @api
*/
class AverageTimeOnSite extends ProcessedMetric
{
public function getName()
{
return 'avg_time_on_site';
}
public function compute(Row $row)
{
$sumVisitLength = $this->getMetric($row, 'sum_visit_length');
$nbVisits = $this->getMetric($row, 'nb_visits');
return Piwik::getQuotientSafe($sumVisitLength, $nbVisits, $precision = 0);
}
public function format($value, Formatter $formatter)
{
return $formatter->getPrettyTimeFromSeconds($value, true);
}
public function getTranslatedName()
{
return Piwik::translate('General_ColumnAvgTimeOnSite');
}
public function getDependentMetrics()
{
return array('sum_visit_length', 'nb_visits');
}
public function getSemanticType(): ?string
{
return Dimension::TYPE_DURATION_S;
}
}
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