/**
* Starts an A/B-test
*
* @param int $id A/B-test ID.
* @return bool
*/
public static function startTest($id)
{
global $USER;
if ($abtest = ABTestTable::getById($id)->fetch()) {
$fields = array('START_DATE' => new Type\DateTime(), 'STOP_DATE' => null, 'ACTIVE' => 'Y', 'USER_ID' => $USER->getID());
if (!$abtest['MIN_AMOUNT']) {
$capacity = AdminHelper::getSiteCapacity($abtest['SITE_ID']);
if ($capacity['min'] > 0) {
$fields['MIN_AMOUNT'] = $capacity['min'];
}
}
$result = ABTestTable::update(intval($id), $fields);
if ($result->isSuccess()) {
Helper::clearCache($abtest['SITE_ID']);
return true;
}
}
return false;
}
