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<?php
class FreshRSS_StatsDAOSQLite extends FreshRSS_StatsDAO {
/**
* Calculates entry count per day on a 30 days period.
* Returns the result as a JSON string.
*
* @return string
*/
public function calculateEntryCount() {
$count = $this->initEntryCountArray();
$period = parent::ENTRY_COUNT_PERIOD;
// Get stats per day for the last 30 days
$sql = <<<SQL
SELECT round(julianday(e.date, 'unixepoch') - julianday('now')) AS day,
COUNT(1) AS count
FROM {$this->prefix}entry AS e
WHERE strftime('%Y%m%d', e.date, 'unixepoch')
BETWEEN strftime('%Y%m%d', 'now', '-{$period} days')
AND strftime('%Y%m%d', 'now', '-1 day')
GROUP BY day
ORDER BY day ASC
SQL;
$stm = $this->bd->prepare($sql);
$stm->execute();
$res = $stm->fetchAll(PDO::FETCH_ASSOC);
foreach ($res as $value) {
$count[(int)$value['day']] = (int) $value['count'];
}
return $this->convertToSerie($count);
}
}
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