我正在尝试以下操作：
我有3个模型：Clinic、Pack和OfferedTreatment中的一个或多个。
Pack和OfferedTreatment通过FK clinic_id与Clinic相关，并且两个模型通过连接模型彼此相关：Pack_OfferedTreatment（pack_id，offeredTreatment_id）。一包可以有多个OfferedTreatments。
从ClinicController，我想要某个诊所和与该诊所相关的某个包，并获取所有相关的offeredTreatments以显示视图
我从以下函数得到的结果是，它返回了与诊所关联的所有offeredTreatments，但没有返回到包....我做错了什么？

/**
 * @param $clinicId
 * @param $packId
 * @return array
 * @throws NotFoundHttpException
 */
public function actionPackOfferedTreatments($clinicId, $packId)
{

    $clinicId = (int)$clinicId;
    $packId = (int)$packId;

    // Find model of the clinic
    $model = $this->findModel($clinicId);

    // pack offeredTreatments:
    $packOfferedTreatmentDataProvider = new ActiveDataProvider([
        'query' => $model->getOfferedTreatments()
                         ->innerJoin('pack_offeredTreatment', false)
                         ->where(['pack_offeredTreatment.pack_id' => $packId]),
        'pagination' => false,
        'sort' => [
            'defaultOrder' => [
                'order' => SORT_ASC
            ]
        ]
    ]);
    Yii::$app->response->format = Response::FORMAT_JSON;
    return $packOfferedTreatmentDataProvider->getModels();
}