How to update 1 cell in Yii2?

Question

Yii

I have a model, it has required on several elements.
But in one form, I want to update only 1 cell - rating, but the validation fails. Please tell me how to solve the problem.

$booksRating = Books::find()->where(['id' => $id])->select(['rating'])->one();
$booksRating->rating = round(array_sum($ratings)/count($ratings), 1);
if ($booksRating->update()) {
  print_r($booksRating->rating);
} else {
  print_r($booksRating->errors);
}

Answer 1

Most likely, required is some kind of tag that needs to be filled in every time.
In your specific case, use updateAttributes(); it works without validation.
For other moments - use scripts.