public static function getContactIdsByReportDataProviderAndAttributeName(RowsAndColumnsReportDataProvider $reportDataProvider, $attributeName)
{
$contactIds = array();
$reportResultsRowDataItems = $reportDataProvider->getData();
foreach ($reportResultsRowDataItems as $reportResultsRowDataItem) {
$contact = $reportResultsRowDataItem->getModel($attributeName);
$contactIds[] = $contact->id;
}
return $contactIds;
}
