Show exceptions and chttpexceptions in modal yii2 - exception

Question

Hey guys im making an website and i need show an error (exception or chttpexception) when this happens in a modal.
Actually the modal displays empty but the console shows the error.
How i can solve this?
Thanks.
This is what happen now:
https://i.stack.imgur.com/UV61O.png
I need this:
https://i.stack.imgur.com/hPfKi.png
My controller actions:
public function actionMomios($id)
{
$this->findModel(1000); //this number is for the error its an ID
}
This is the function who throws the error:
protected function findModel($id)
{
if (($model = Partido::findOne($id)) !== null) {
return $model;
}
throw new NotFoundHttpException('El partido no se encuentra registrado'); // This is the exception i need to show
}
This is the code who calls the modal (its in a gridview):
'momios' => function($url,$model,$key){
$btn = Html::button("<span class='glyphicon glyphicon-usd'></span>",[
'value'=>Yii::$app->urlManager->createUrl('partido/momios?id='.$key),
'class'=>'momioedit grid-action btn btn-success',
'title'=>'Modificar momios'
]);
return $btn;
},
My modal in the view:
<?php
Modal::begin([
'header' => '<h4>Editar Momio</h4>',
'id' => 'modalmomio',
'size' => 'modal-lg',
]);
echo "<div id='momiocontent'></div>";
Modal::end();
?>
My JS:
$('.momioedit').click(function(){
$('#modalmomio').modal('show')
.find('#momiocontent')
.load($(this).attr('value'));
});

Answer 1

You just need to wrap your code inside a try{}catch(){} block inside the actionMomios($id) that calls the findModel() method like below.
public function actionMomios($id)
{
try{
$this->findModel(1000); //this number is for the error its an ID
}catch(\Exception $e){
return $e->getMessage();
}
}