/**
* @param $entity
* @param $targetId
*/
public static function updateRating($entity, $targetId)
{
$positive = static::find()->where(['entity' => $entity, 'target_id' => $targetId, 'value' => self::VOTE_POSITIVE])->count();
$negative = static::find()->where(['entity' => $entity, 'target_id' => $targetId, 'value' => self::VOTE_NEGATIVE])->count();
if ($positive + $negative !== 0) {
$rating = (($positive + 1.9208) / ($positive + $negative) - 1.96 * SQRT($positive * $negative / ($positive + $negative) + 0.9604) / ($positive + $negative)) / (1 + 3.8416 / ($positive + $negative));
} else {
$rating = 0;
}
$rating = round($rating * 10, 2);
$aggregateModel = VoteAggregate::findOne(['entity' => $entity, 'target_id' => $targetId]);
if ($aggregateModel == null) {
$aggregateModel = new VoteAggregate();
$aggregateModel->entity = $entity;
$aggregateModel->target_id = $targetId;
}
$aggregateModel->positive = $positive;
$aggregateModel->negative = $negative;
$aggregateModel->rating = $rating;
$aggregateModel->save();
}
