Custom fields in Yii2 dynamic form

Question

I'm using wbraganca dynamic form in Yii2-advanced-app. Where I want to take a custom field. But I don't understand how to handle it with onchange. Because the id's of all fields are changing dynamically as we click on 'add' button.

I want to change only the respected 'available qty' on changing the corresponding 'SKU'. That is if sku with id sku0 is selected, then it's available qty i.e. avlqty0 should be changed(...Sku1--->avlqty1 & so on...). But I can't get the id because it changes dynamically.

Here is my code -

<div class="col-lg-2">
    <?= $form->field($model, "[{$i}]SKU")->dropDownList(ArrayHelper::map(CompItems::find()->where(['id' => 0])->all(),'id','SKU'),['prompt' => 'Select SKU',
      'onchange' => '
           $("#avlqty").val(100);']) ?>
</div>
<div class="col-lg-3">
    <div class="form-group" style="margin-bottom: 10px;">
      <label for="avlqty">Available Qty:</label>
      <input type="text" class="form-control" id="avlqty" value="" readonly="true">
    </div>
</div>

Ish · Accepted Answer · 2016-09-12 09:14:47Z

1

Give class to the sku dropdown. Let say it is sku_class and give the id like sku_id (ski_0) and avlqty_0

$(document).on('change', '.sku_class', function() {
    ele_id = $(this).attr('id');
    ele_arr = ele_id.split("_");
    id = ele_arr.pop();  // this is your id
})

edited Sep 12, 2016 at 9:14

answered Sep 12, 2016 at 8:28

Ish

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6 Comments

Tushar Walzade Over a year ago

But then it's applicable for only first 'sku_class' and not work if we try it on second sku

Ish Over a year ago

You need to give this class to all sku

Tushar Walzade Over a year ago

But it's in dynamic form, we need to use it only once & it will be instantiated as we'll click on '+' button

Ish Over a year ago

So when you click on + and create the new element. in that new element add the class. so that all the dynamic element will also have class.

Tushar Walzade Over a year ago

Yeah, I understand that. But this isn't the problem, the class is already added to all the elements on '+' click. What the problem I'm talking about is that, jQuery is referring to only the first position where the 'sku_class' is applied. It doesn't take it's second click/change.

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