Hey, I need detect amount rows in gridview. e.g I adds (select dropdownlist max 30) 20 records to database at max 30. who i can add. Now, if i would like add next record , in my select dropdown list should have max 10 records no 30 to choose.
Dropdownlist begin(max 30, but i can choose 20 too)
if i choose 20, so no i can only choose 10 because 30-20=10
I hope you understand
<?= GridView::widget([
'dataProvider' => $dataProvider,
'filterModel' => $searchModel,
'columns' => [
'attr1',
'attr2',
[
'attribute' => 'category_id',
'value' => function ($m, $key) {
return Yii::t('app', $m::getCategoryById($m->category_id));
},
'filter' => Html::activeDropDownList($searchModel, 'category_id', $searchModel::getMax30(), ['class'=>'form-control', 'prompt' => 'all']),
],
...
getMax30() - change name function, this method is in model, in this method you can put logic function to do what you want.
for example
Class Model {
function public getMax30(){
$model = Category::find()->asArray()->all()
$model[] = [add 10 elements]
}
}