Collaboration diagram for ilSessionStatistics:

Static Public Member Functions
static	aggregateRaw (int $a_now)

static	getLastAggregation ()
	Get timestamp of last aggregation. More...

Private Attributes
const int	SLOT_SIZE = 15

Static Private Attributes
static ilDBStatement	$number_of_active_raw_sessions_statement = null

static ilDBStatement	$aggregated_raw_data_statement = null

static ilDBStatement	$raw_data_statement = null

Detailed Description

Definition at line 21 of file class.ilSessionStatistics.php.

Member Function Documentation

◆ aggregateRaw()

static ilSessionStatistics::aggregateRaw ( int $a_now )

static

Definition at line 234 of file class.ilSessionStatistics.php.

                                                   : void
    {
        if (!self::isActive()) {
            return;
        }
 
        $slot = self::createNewAggregationSlot($a_now);
        while (is_array($slot)) {
            self::aggregateRawHelper($slot[0], $slot[1]);
            $slot = self::createNewAggregationSlot($a_now);
        }
 
        // #12728
        self::deleteAggregatedRaw($a_now);
    }

Referenced by ilSessionStatisticsGUI\adminSync(), and ilAuthDestroyExpiredSessionsCron\run().

Here is the caller graph for this function:

◆ getLastAggregation()

static ilSessionStatistics::getLastAggregation ( )

static

Get timestamp of last aggregation.

Definition at line 512 of file class.ilSessionStatistics.php.

                                               : ?int
    {
        global $DIC;
 
        $ilDB = $DIC['ilDB'];
 
        $sql = 'SELECT MAX(slot_end) latest FROM usr_session_stats';
        $res = $ilDB->query($sql);
        $row = $ilDB->fetchAssoc($res);
        if ($row['latest'] !== null) {
            return (int) $row['latest'];
        }
 
        //TODO check if return null as timestamp causes issues
        return null;
    }