<?php
use thread\app\bootstrap\ActiveForm;

/**
 * @var $model \backend\modules\sys\models\Language
 */
$form = ActiveForm::begin();
//
echo $form->submit($model, $this)
    . $form->text_line($model, 'alias')
    . $form->text_line($model, 'local')
    . $form->text_line($model, 'label')
    . $form->field($model, 'img_flag')->imageOne($model->getImageLink())
    . $form->checkbox($model, 'by_default');

if ($model['by_default'] != $model::STATUS_KEY_ON) {
    echo $form->switcher($model, 'published');
}
echo $form->submit($model, $this);
//
ActiveForm::end();