echo $form->field($model, 'city')->dropDownList(ArrayHelper::map(Cities::find()->all(), 'id', 'name'), ['prompt' => 'Choose a City', 'onchange' => '$.post("' . Yii::$app->urlManager->createUrl('customers/lists') . '",{id:$(this).val()},
function( data ) {
$( "select#customers-suburb" ).html( data );
});'])->label(false);
?>
</div>
<div class="col-lg-6">
<?php
echo $form->field($model, 'street')->textInput(['maxlength' => true, 'placeholder' => $model->getAttributeLabel('street')])->label(false);
?>
</div>
</div>
<div class="row">
<div class="col-lg-6">
<?php
echo $form->field($model, 'suburb')->dropDownList(ArrayHelper::map(Suburbs::find()->asArray()->all(), 'id', 'name'), ['prompt' => 'Choose a suburb'])->label(false);
?>
</div>
<div class="col-lg-6">
<?php
echo $form->field($model, 'zipcode')->textInput(['maxlength' => true, 'placeholder' => $model->getAttributeLabel('zipcode')])->label(false);
?>
</div>
</div>
</div>
<div class="col-lg-1"></div>
</div>
</div>
<div class="form-group submit">
<?php
public function actionLists()
{
if (\filter_input(\INPUT_POST, 'id') != null) {
$id = \filter_input(\INPUT_POST, 'id');
$countPosts = Suburbs::find()->where(['city' => $id])->count();
$posts = Suburbs::find()->where(['city' => $id])->orderBy('name ASC')->all();
if ($countPosts > 0) {
return $this->actionSuburbsList($posts);
} else {
return "<option>-</option>";
}
}
}