What to throw an exception or error in yii2?

Question

Yii

Hello! I save the image in yii2 using saveAs(), which exception is better to throw if this function returns false, so that later I can quickly determine where the error lies? Or is it not worth throwing at all, what do you think? Thank you)

Answer 1

Usually they do not throw an error, but return the model with validation errors, so you can simply add an error to $model->errors so that activeform displays it.
But if this is for example ajax, then you can also throw an error, for example like this:

if(!$file->saveAs()){
throw new yii\base\ErrorException('ошибка при сохранении файла');
}