Why is the controller not seeing form data in yii2?

Question

Yii

The logic is this application: you need to make a confirmation by entering a certain number in the form field that comes already with the data. There is a controller

public function actionCreate()
    {
        
         $model = new Transactions();

if ($model->load(Yii::$app->request->post()) && $this->applyOperation($model)) {
               $model->save();
            return $this->redirect(['view', 'id' => $model->id]);      
            } else {
                return $this->render('create', [
                    'model' => $model,
                ]);
            }

Another controller with operations (here is the problem)

private function applyOperation($model) {
 $code = $model->code;
        $password = 123;
if($password == $code ){
   return $this->redirect(['trans']);
}

the form

<?php $form = ActiveForm::begin(); ?>

<?= Html::activeTextInput($model, 'account', [ 'value' => "$acc",'readonly' => 'readonly']) ?>
<?= Html::activeTextInput($model, 'sum', [  'value' => "$su",'readonly' => 'readonly']) ?>
<?= Html::activeTextInput($model, 'description', [ 'value' => "$desc",'readonly' => 'readonly']) ?>
<?= Html::activeTextInput($model, 'sender', [ 'value' => "$se",'readonly' => 'readonly']) ?>

<?= $form->field($model, 'code')->textInput() ?>
<div class="form-group">
        <?= Html::submitButton($model->isNewRecord ? Yii::t('frontend', 'Fill up balance') : Yii::t('frontend', 'Update'), ['class' => $model->isNewRecord ? 'btn btn-success' : 'btn btn-primary']) ?>
    </div>

    <?php ActiveForm::end(); ?>

The problem is that in the applyOperation() method $code = $model->code; for some reason is equal to NULL, although the data is entered and the redirect does not go through.
Can't figure out what's the problem

Answer 1

Try like this:

public function actionCreate()
    {
        
         $model = new Transactions();

if ($model->load(Yii::$app->request->post()) {
$this->applyOperation($model);
               $model->save();
            return $this->redirect(['view', 'id' => $model->id]);      
            } else {
                return $this->render('create', [
                    'model' => $model,
                ]);
            }

and applyOperation like so:

private function applyOperation($model) {
 $code = $model->code;
        $password = 123;
if($password == $code ){
   return $this->redirect(['trans']);
}else{
return true;
}

Yes, and you have an extra parenthesis there before &&