/**
* Recupere les dernieres statistiques de chaque buiobanque, et calcule les statisqtiues globales
* @return type
*/
public function getAverageRate()
{
$result = array();
$listAttributes = StatTools::getAttributesForRating();
$bbStatsCriteria = new EMongoCriteria();
$bbStatsCriteria->addCond('biobank_id', '!=', '0');
// $biobanksStats = BiobankStats::model()->findAll($bbStatsCriteria);
$biobanksStats = array();
$collAggregate = BiobankStats::model()->getCollection()->aggregate(array('$sort' => array('date' => -1)), array('$group' => array('_id' => '$biobank_id', 'biobank' => array('$first' => array('values' => '$values', 'date' => '$date')))));
foreach ($collAggregate['result'] as $firstResult) {
$stats = new BiobankStats();
$stats->setAttributes($firstResult['biobank'], false);
$biobanksStats[] = $stats;
}
$rateCount = 0;
foreach ($listAttributes as $attributeName => $attributeConstraint) {
$partialResult = 0;
foreach ($biobanksStats as $BiobankStats) {
if (isset($BiobankStats->values[$attributeName])) {
$partialResult += $BiobankStats->values[$attributeName];
}
}
$result['values'][$attributeName] = $partialResult / count($biobanksStats);
$rateCount += $result['values'][$attributeName];
}
$result['globalRate'] = $rateCount / count($listAttributes);
return $result;
}
