Why is the validator not being called in Yii2?

Question

Yii

Started learning Yii2, met a problem with form validation.

public function requiredTitile($attribute, $options) {
    if (!$this->title) {
      $this->addError('title', 'Нужно ввести название');
    } else if (count($this->title) < 5) {
      $this->addError('title', 'Минимальная длина - 5 символов');
    }
  }
  
  public function rules()
  {
    return array([['title'], 'requiredTitile']);
  }

When you enter any value in the title field, the validator works, but when the field is empty, it does not. Where did I go wrong?

Answer 1

Most likely this is www.yiiframework.com/doc-2.0/yii-validators-valida...

Answer 2

For empty values, there is a required validator, otherwise it is not required and it fails validation.

Answer 3

in our case there is already a validator
string length=>[0,50]