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<?php
class FreshRSS_StatsDAOPGSQL extends FreshRSS_StatsDAO {
/**
* Calculates the number of article per hour of the day per feed
*
* @param integer $feed id
* @return array<int,int>
*/
public function calculateEntryRepartitionPerFeedPerHour(?int $feed = null): array {
return $this->calculateEntryRepartitionPerFeedPerPeriod('hour', $feed);
}
/**
* Calculates the number of article per day of week per feed
* @return array<int,int>
*/
public function calculateEntryRepartitionPerFeedPerDayOfWeek(?int $feed = null): array {
return $this->calculateEntryRepartitionPerFeedPerPeriod('day', $feed);
}
/**
* Calculates the number of article per month per feed
* @return array<int,int>
*/
public function calculateEntryRepartitionPerFeedPerMonth(?int $feed = null): array {
return $this->calculateEntryRepartitionPerFeedPerPeriod('month', $feed);
}
/**
* Calculates the number of article per period per feed
* @param string $period format string to use for grouping
* @return array<int,int>
*/
protected function calculateEntryRepartitionPerFeedPerPeriod(string $period, ?int $feed = null): array {
$restrict = '';
if ($feed) {
$restrict = "WHERE e.id_feed = {$feed}";
}
$sql = <<<SQL
SELECT extract( {$period} from to_timestamp(e.date)) AS period
, COUNT(1) AS count
FROM `_entry` AS e
{$restrict}
GROUP BY period
ORDER BY period ASC
SQL;
$stm = $this->pdo->query($sql);
$res = $stm->fetchAll(PDO::FETCH_NAMED);
switch ($period) {
case 'hour':
$periodMax = 24;
break;
case 'day':
$periodMax = 7;
break;
case 'month':
$periodMax = 12;
break;
default:
$periodMax = 30;
}
$repartition = array_fill(0, $periodMax, 0);
foreach ($res as $value) {
$repartition[(int) $value['period']] = (int) $value['count'];
}
return $repartition;
}
}
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