/**
* Creates a new StudentTeacher model.
* If creation is successful, the browser will be redirected to the 'view' page.
* @return mixed
*/
public function actionCreate()
{
$model = new StudentTeacher();
$post = Yii::$app->request->post();
if (isset($post['StudentTeacher'])) {
$studentId = $post['StudentTeacher']['student_id'];
$teacherId = $post['StudentTeacher']['teacher_id'];
$exists = StudentTeacher::find()->andWhere(['student_id' => $studentId])->andWhere(['teacher_id' => $teacherId])->exists();
if (true === $exists) {
return $this->render('create', ['model' => $model, 'message' => 'Этут студент уже учится у этого учителя']);
}
}
if ($model->load(Yii::$app->request->post()) && $model->save()) {
return $this->render('create', ['model' => $model, 'message' => 'Ученик успешно назначен учителю']);
} else {
return $this->render('create', ['model' => $model, 'message' => '']);
}
}