static function update()
{
$returningMetrics = array('nb_visits_returning', 'nb_actions_returning', 'max_actions_returning', 'sum_visit_length_returning', 'bounce_count_returning', 'nb_visits_converted_returning', 'nb_uniq_visitors_returning');
$now = Date::factory('now')->getDatetime();
$archiveNumericTables = Db::get()->fetchCol("SHOW TABLES LIKE '%archive_numeric%'");
// for each numeric archive table, copy *_returning metrics to VisitsSummary metrics w/ the appropriate
// returning visit segment
foreach ($archiveNumericTables as $table) {
// get archives w/ *._returning
$sql = "SELECT idarchive, idsite, period, date1, date2\n FROM {$table}\n WHERE name IN ('" . implode("','", $returningMetrics) . "')\n GROUP BY idarchive";
$idArchivesWithReturning = Db::fetchAll($sql);
// get archives for visitssummary returning visitor segment
$sql = "SELECT idarchive, idsite, period, date1, date2\n FROM {$table}\n WHERE name = ?\n GROUP BY idarchive";
$visitSummaryReturningSegmentDone = Rules::getDoneFlagArchiveContainsOnePlugin(new Segment(VisitFrequencyApi::RETURNING_VISITOR_SEGMENT, $idSites = array()), 'VisitsSummary');
$idArchivesWithVisitReturningSegment = Db::fetchAll($sql, array($visitSummaryReturningSegmentDone));
// collect info for new visitssummary archives have to be created to match archives w/ *._returning
// metrics
$missingIdArchives = array();
$idArchiveMappings = array();
foreach ($idArchivesWithReturning as $row) {
$withMetricsIdArchive = $row['idarchive'];
foreach ($idArchivesWithVisitReturningSegment as $segmentRow) {
if ($row['idsite'] == $segmentRow['idsite'] && $row['period'] == $segmentRow['period'] && $row['date1'] == $segmentRow['date1'] && $row['date2'] == $segmentRow['date2']) {
$idArchiveMappings[$withMetricsIdArchive] = $segmentRow['idarchive'];
}
}
if (!isset($idArchiveMappings[$withMetricsIdArchive])) {
$missingIdArchives[$withMetricsIdArchive] = $row;
}
}
// if there are missing idarchives, fill out new archive row values
if (!empty($missingIdArchives)) {
$newIdArchiveStart = Db::fetchOne("SELECT MAX(idarchive) FROM {$table}") + 1;
foreach ($missingIdArchives as $withMetricsIdArchive => &$rowToInsert) {
$idArchiveMappings[$withMetricsIdArchive] = $newIdArchiveStart;
$rowToInsert['idarchive'] = $newIdArchiveStart;
$rowToInsert['ts_archived'] = $now;
$rowToInsert['name'] = $visitSummaryReturningSegmentDone;
$rowToInsert['value'] = ArchiveWriter::DONE_OK;
++$newIdArchiveStart;
}
// add missing archives
try {
$params = array();
foreach ($missingIdArchives as $missingIdArchive) {
$params[] = array_values($missingIdArchive);
}
BatchInsert::tableInsertBatch($table, array_keys(reset($missingIdArchives)), $params, $throwException = false);
} catch (\Exception $ex) {
Updater::handleQueryError($ex, "<batch insert>", false, __FILE__);
}
}
// update idarchive & name columns in rows with *._returning metrics
$updateSqlPrefix = "UPDATE {$table}\n SET idarchive = CASE idarchive ";
$updateSqlSuffix = " END, name = CASE name ";
foreach ($returningMetrics as $metric) {
$newMetricName = substr($metric, 0, strlen($metric) - strlen(VisitFrequencyApi::COLUMN_SUFFIX));
$updateSqlSuffix .= "WHEN '{$metric}' THEN '" . $newMetricName . "' ";
}
$updateSqlSuffix .= " END WHERE idarchive IN (%s)\n AND name IN ('" . implode("','", $returningMetrics) . "')";
// update only 1000 rows at a time so we don't send too large an SQL query to MySQL
foreach (array_chunk($missingIdArchives, 1000, $preserveKeys = true) as $chunk) {
$idArchives = array();
$updateSql = $updateSqlPrefix;
foreach ($chunk as $withMetricsIdArchive => $row) {
$updateSql .= "WHEN {$withMetricsIdArchive} THEN {$row['idarchive']} ";
$idArchives[] = $withMetricsIdArchive;
}
$updateSql .= sprintf($updateSqlSuffix, implode(',', $idArchives));
Updater::executeMigrationQuery($updateSql, false, __FILE__);
}
}
}
