public function actionApply()
{
$trainId = Yii::$app->request->get('train_id');
$trainInfo = Train::findOne(['id' => $trainId]);
if ($trainInfo['status'] != Train::BEGIN_SIGN_UP) {
throw new ServerErrorHttpException('该课程的状态不是开始报名，谢谢。');
}
if (Yii::$app->user->isGuest) {
return $this->redirect(['/user/register', 'train_id' => $trainId]);
} else {
$userId = Yii::$app->user->id;
if (Yii::$app->user->identity->status != '1') {
throw new ServerErrorHttpException('您目前的状态是未审核，不能报名课程，谢谢。');
}
$trainLevelInfo = Level::findOne($trainInfo['level_id']);
if ($trainLevelInfo['order'] != Yii::$app->user->identity->level_order + 1) {
throw new ServerErrorHttpException('您目前没有权限报名该级别下的课程，谢谢。');
}
//检查用户参与的课程，状态不是取消，注册未完成，审核未通过，未通过的都算是已经参与了报名
$isExist = TrainUsers::getUserIsExistTrainStatus($userId, $trainInfo['level_id']);
if (!empty($isExist)) {
throw new ServerErrorHttpException('您已经参与了该级别下的培训课程，请耐心等待培训结果，谢谢。');
}
//报名成功，给出用户的序号
$trainUsersOrder = TrainUsers::getTrainUsersOrder($trainId);
if (empty($trainUsersOrder)) {
$trainUsersOrder = 1;
} else {
$trainUsersOrder = $trainUsersOrder + 1;
}
$transaction = Yii::$app->db->beginTransaction();
//如果用户未完成报名流程，更新状态为审核中
$isSignExist = TrainUsers::getUserIsExistTrainStatusSign($userId, $trainInfo['level_id']);
if (!empty($isSignExist)) {
TrainUsers::updateAll(['status' => TrainUsers::APPROVED], ['id' => $isSignExist['id']]);
$trainName = Train::getOneTrainNameById($isSignExist['train_id']);
$data = ['orders' => $isSignExist['orders'], 'trainName' => $trainName];
$transaction->commit();
return $this->render('/user/apply-success', ['data' => $data]);
} else {
//如果没有记录，新增一条
$data = ['train_id' => $trainId, 'user_id' => $userId, 'status' => TrainUsers::APPROVED, 'practice_score' => 0, 'theory_score' => 0, 'rule_score' => 0, 'level_id' => $trainInfo['level_id'], 'orders' => $trainUsersOrder];
$model = new TrainUsers();
$model->setAttributes($data);
if ($model->save()) {
$trainName = Train::getOneTrainNameById($model->train_id);
$data = ['orders' => $model->orders, 'trainName' => $trainName];
$transaction->commit();
return $this->render('/user/apply-success', ['data' => $data]);
} else {
throw new ServerErrorHttpException('系统错误,原因：' . json_encode($model->errors, JSON_UNESCAPED_UNICODE));
}
}
}
}
