/**
* Gets the archive id of every Single archive this archive holds. This method
* will launch the archiving process if appropriate.
*
* @param array $metrics The requested archive metrics.
* @throws Exception
* @return array
*/
private function getArchiveIdsAfterLaunching($metrics)
{
// collect the individual report names for the requested metrics
$reports = array();
foreach ($metrics as $metric) {
$report = Piwik_Archive_Single::getRequestedReportFor($metric);
$reports[$report] = $metric;
}
// process archives for each individual report
$archiveIds = array();
foreach ($reports as $report => $metric) {
// prepare archives (this will launch archiving when appropriate)
foreach ($this->archives as $archive) {
// NOTE: Piwik_Archive_Single expects a metric here, not a report
$archive->setRequestedReport($metric);
$archive->prepareArchive();
}
// collect archive ids for archives that have visits
foreach ($this->archives as $archive) {
if (!$archive->isThereSomeVisits) {
continue;
}
$archiveIds[] = $archive->getIdArchive();
if ($this->getNumericTableName() != $archive->archiveProcessing->getTableArchiveNumericName()) {
throw new Exception("Piwik_Archive_Array_IndexedBySite::getDataTableFromNumeric() algorithm won't work if data is stored in different tables");
}
}
}
return $archiveIds;
}
