Yii2. Why are field data not being passed to the database?

Question

Yii

There is a ready CMS for yii2. I want to add a new friend
field on the registration page. But my field is not being written to the db. Entered it in scripts in the User model

public $friend;

 public function scenarios()
    {
        return [
            'signup' => ['username', 'email', 'password', 'first_name', 'last_name', 'friend'],

in the registration form model:

public $friend;

 public function signup()
    {
        if ($this->validate() === true) {
              $user = new User;
          $user->setScenario('signup');
            $user->username = $this->username;
            $user->password = $this->password;
           $user->friend = $this->friend;
            $user->email = $this->email;
            if ($user->save() === false) {
                $this->addErrors($user->errors);
                return null;
            }

view :

<div class="row">
        <div class="col-lg-5">
            <?php $form = ActiveForm::begin(['id' => 'form-signup']); ?>
                <?= $form->field($model, 'first_name') ?>               
          <?= $form->field($model, 'last_name') ?>
        <?= $form->field($model, 'username') ?>
        <?= $form->field($model, 'friend') ?>
        <?= $form->field($model, 'email') ?>
                <?= $form->field($model, 'password')->passwordInput() ?>
      
      
                <div class="form-group">
                    <?= Html::submitButton('Signup', ['class' => 'btn btn-primary', 'name' => 'signup-button']) ?>
                </div>
            <?php ActiveForm::end(); ?>

in the debugger, it says that all the entered user data was transferred by the POST method successfully. But only the friend field is empty in the database.

Answer 1

Try to remove the public $friend model property declarations;
You also need to check the data type for the table field and the type of sent data for the public field