BaseEventTypeController::actionViewPreviousElements PHP Method

    public function actionViewPreviousElements($element_type_id, $patient_id)
    {
        $element_type = ElementType::model()->findByPk($element_type_id);
        if (!$element_type) {
            throw new CHttpException(404, 'Unknown ElementType');
        }
        $this->patient = Patient::model()->findByPk($patient_id);
        if (!$this->patient) {
            throw new CHttpException(404, 'Unknown Patient');
        }
        // Clear script requirements as all the base css and js will already be on the page
        Yii::app()->assetManager->reset();
        $this->episode = $this->getEpisode();
        $elements = $this->episode->getElementsOfType($element_type);
        $this->renderPartial('_previous', array('elements' => $elements), false, true);
    }