common\models\Goods::getIsHotList PHP Метод

    public static function getIsHotList()
    {
        if (self::$_isHotList === null) {
            self::$_isHotList = [self::BOOL_TRUE => '热门', self::BOOL_FALSE => '非热门'];
        }
        return self::$_isHotList;
    }

use yii\bootstrap\ActiveForm;
use common\models\Goods;
$this->title = $model->isNewRecord ? '添加商品' : '更新商品';
?>
<div class="row">
    <div class="col-lg-6">
    <?php 
$form = ActiveForm::begin();
?>
        <?php 
echo $form->field($model, 'name');
?>
        <?php 
echo $form->field($model, 'description')->textarea();
?>
        <?php 
echo $form->field($model, 'is_new')->dropDownList(Goods::getIsNewList());
?>
        <?php 
echo $form->field($model, 'is_hot')->dropDownList(Goods::getIsHotList());
?>
        <div class="form-group">
            <?php 
echo Html::submitButton('<i class="fa fa-floppy-o"></i> 保存', ['class' => 'btn btn-primary']);
?>
        </div>
    <?php 
ActiveForm::end();
?>
    </div>
</div>