/**
* Record success/completion of a test variation.
*
* @access public
* @param string $test_id
* @return mixed
*/
public function addWin($test_id, $variation_id)
{
$this->getClient();
// increment the object hash count
$wins = $this->client->hincrby('variation:' . $variation_id, 'wins', 1);
// retrieve the variation views
$pageviews = $this->client->hget('variation:' . $variation_id, 'pageviews');
// calculate ranking change
$rank = 0.0;
if ($pageviews > 0) {
$rank = $wins / $pageviews;
}
// update the variation rankings
$this->client->zadd('variations:sorted_by_rank', $rank, $variation_id);
}
