asdasd

$filter = new \yii\base\DynamicModel([
    'id', 'code', 'description'
]);
$filter->addRule('id', 'integer');
$filter->addRule('code', 'string');
$filter->addRule('description', 'string');

asdas

asd

asd

if ($filter->id)
{
    $dataProvider->query->andWhere(['id' => $filter->id]);
}

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