I have a form in which there are two selectboxes, The second selectbox depends of the first one. All form data are saved in session because there is a back button in order user to be able to change things after firs submitting. So when user click's the back button I am able to assign the session value to the first dropdown but not to the second one which depends from the first one.
if(isset($session['form_1']['state_code']))
{ $state_code = $session['form_1']['form_1']; $this->registerJs('$("select#state_select").trigger("change");');} else { $state_code = " "; }
echo $form->field($model, 'state_code')->dropDownList($states,
[ 'prompt' => ' Select state...',
'options' => [$state_code => ['Selected'=>'selected']],
'onchange' => '
$.get("'.Yii::$app->urlManager->createUrl('city?id=').
'"+$(this).val(),function( data ) {
$("select#city").html( data );
});'
]);
This code works for the first drop down
And the bellow code you can see the other drop down which does not work:
if(isset($session['form_2']['city_select']))
{ $c_id = $session['form_2']['city_select']; }
else{ $c_id = ''; }
echo $form->field($model, 'city_select')->dropDownList(['0' => 'Please select state..'],
[
'options' => [$c_id => ['Selected'=>'selected']],
]);
Any Idea ?
