Yii2 GridView - attribute format based on value of other attribute - php

Question

I made custom currency formatter + converter based on values from database.
This is how I use it in DetailView
use yii\helpers\Html;
use app\commands\AppHelper;
use yii\widgets\DetailView;
use app\models\Part;
<?= DetailView::widget([
'model' => $model,
'attributes' => [
// ...
[
'attribute' => 'price',
'label' => (new Part())->getAttributeLabel('price_user'),
'format' => [
'currency',
AppHelper::getUserCurrencyCode(),
[
'convert' => true,
'currencyFrom' => $model->currency->code,
'currencyTo' => AppHelper::getUserCurrencyCode(),
],
],
],
// ...
],
]) ?>
In this widget I can accomplish behaviour like this: when there is numeric value, it gets formatted, if there is NULL value, usual (not-set) is printed out...
Notice $model->currency->code which is data from relation, in DetailView easily accessible but I can not figure out how to get that data into formatter in GridView.
Problem is when I want to format data in GridView.
I allow NULL values on column that I need to use formatter on, so I already threw away idea of using
'value' => function ($data, $key, $index, $column) { return $data->value; }
because when NULL value is present, yii sends data like this
<span class="not-set">(not set)</span>
and either I want to let it be or set my custom value (considering different value for other columns with NULL value) and I also want to save trouble handling all those (not set) values.
Another reason is, as I noticed, that if I use 'format' => ... in attribute params, formatting happens before setting those (not set) values.
So I was thinking about somehow passing that $model->currency->code, which is data from relation, to that formatter.
Any ideas? Thanks.

Answer 1

Worst case scenario I will use formatter in value dumping values that contains '<span' or NULL like this, but it is ugly and I dont like it...
EDIT: I added custom static method to format unset data. I still dont like it, but hey, it works ... :D
use yii\helpers\Html;
use app\commands\AppHelper;
use yii\grid\GridView;
use app\models\Part;
<?= GridView::widget([
'dataProvider' => $dataProvider,
'filterModel' => $searchModel,
'columns' => [
// ...
[
'attribute' => 'price',
'label' => (new Part())->getAttributeLabel('price_user'),
'value' => function ($data, $key, $index, $column) {
return Part::requestPrice(Yii::$app->formatter->asCurrency(
$data->price,
AppHelper::getUserCurrencyCode(),
[
'precision' => 2,
'convert' => true,
'currencyFrom' => $data->currencyCode,
'currencyTo' => AppHelper::getUserCurrencyCode(),
]));
},
'format' => 'raw',
],
// ...
],
]); ?>
and in Part.php (Part model) I added method
public static function requestPrice($price)
{
if (strpos($price, 'class') !== false || empty($price) || floatval($price) == 0)
return '<span class="not-set">' . Yii::t('app', 'na vyžiadanie') . '</span>';
else
return $price;
}