How to display validation errors for multiple records selected by a checkbox?

Question

Yii

Hello. There was a problem with error output for multiple records.
I have a GridView where I display a table with all users, I can select several users with a checkbox and change their status by pressing one button under a certain condition (validation is in progress here), if some selected users have not passed validation, then I don’t change anything and I want to display errors on top in this form:
user1: date is not correct
...
user2: no name the
whole problem is that I only get an error for one user, for the first all the others I stupidly don’t know how to show it.

...
тут получаю список всех пользователей $users выбранных чекбоксом
...
foreach ($users as $key => $user) {
    $user->validate();

    if ($user->hasErrors()) {
        $result = [];
        foreach ($model->getErrors() as $attribute => $errors) {
            $id = $user->id;
            $result[Html::getInputId($model, $attribute)] = $errors;
        }
    }

    if ($model->save()) {
        $saved = true;
    }
}
if ($saved) {
    Yii::$app->session->addFlash('success', 'Статусы были изменены');
} else {
    return $this->asJson(['id' => $id, 'validation' => $result]);
}

Answer 1

You need to get all the models that you want to change at once.
Here you have an array of id-shnikov. You can get everything at once

$usersId = Yii::$app->request->post('items', []);
$users = Users::findAll($usersId);

Now in $users you will have all the models you modify.
Validation will be something like this

// для каждой отдельной модели передаёте её массив ошибок
if ($user->hasErrors()) {
   $result = [];
   $result[Html::getInputId($model, $attribute)] = $model->getErrors();
}

And already in the form you parse a multidimensional array and display errors.