/**
* Loads the experiment from AppEngine.
*
* @param int $id the ID of the experiment we want to retrieve.
* @param int $type the type of the experiment we want to retrieve.
*
* @return NelioABExperiment the experiment whose ID is `$id` and whose type is `$type`.
* Note that the result will be an instance of
* a concrete subclass of `NelioABExperiment`.
*
* @throws Exception `EXPERIMENT_ID_NOT_FOUND`
* This exception is thrown if the experiment was not
* found in AppEngine.
*
* @see NelioABExperiment::load
*
* @since 3.4.0
*/
private static function load_experiment_by_id($id, $type)
{
require_once NELIOAB_MODELS_DIR . '/goals/goals-manager.php';
/** @var NelioABExperiment $exp */
switch ($type) {
case NelioABExperiment::POST_ALT_EXP:
case NelioABExperiment::PAGE_ALT_EXP:
case NelioABExperiment::PAGE_OR_POST_ALT_EXP:
case NelioABExperiment::CPT_ALT_EXP:
$exp = NelioABPostAlternativeExperiment::load($id);
break;
case NelioABExperiment::HEADLINE_ALT_EXP:
$exp = NelioABHeadlineAlternativeExperiment::load($id);
break;
case NelioABExperiment::WC_PRODUCT_SUMMARY_ALT_EXP:
$exp = NelioABProductSummaryAlternativeExperiment::load($id);
break;
case NelioABExperiment::THEME_ALT_EXP:
$exp = NelioABThemeAlternativeExperiment::load($id);
break;
case NelioABExperiment::CSS_ALT_EXP:
$exp = NelioABCssAlternativeExperiment::load($id);
break;
case NelioABExperiment::WIDGET_ALT_EXP:
$exp = NelioABWidgetAlternativeExperiment::load($id);
break;
case NelioABExperiment::MENU_ALT_EXP:
$exp = NelioABMenuAlternativeExperiment::load($id);
break;
case NelioABExperiment::HEATMAP_EXP:
$exp = NelioABHeatmapExperiment::load($id);
break;
default:
$err = NelioABErrCodes::EXPERIMENT_ID_NOT_FOUND;
throw new Exception(NelioABErrCodes::to_string($err), $err);
}
$exp->mark_as_fully_loaded();
return $exp;
}
