Listview and custom dataprovider search yii2

Question

I am working on a project in which to display some data i am using a custom query and saving those data in dataProvider. Passing that dataProvider to view file and displaying using a Listview . just like below

<nav class="navbar navbar-fixed-top">
    <form class="navbar-form navbar-left search-form" action="">
        <div class="form-group"><input type="text" class="form-control app-search" placeholder="Search">
        </div>
    </form>
</nav>

<div class="panel-group" id="accordion">
<?= \yii\widgets\ListView::widget([
    'dataProvider' => $dataProvider,
    'itemView' => 'eventlistview',
    'layout' => "{items}",
]); ?>

</div>

I want to implement a search bar for that Listview . I am not using any SearchModel so i am confused that how can i do that?

Here is my action code.

public function actionEvent()
{
    $this->layout = 'app';
    if(isset($_GET['latitude']) && isset($_GET['longitude'])){
            $query = new Query();
            $query  ->select(['e.*','COUNT(d.event_id) as checkins' ,'o.clubname',new Expression("case when c.id is not null then 1 else 0 end is_checkedin")])
                ->from('event e')
                ->innerJoin('organiser o', 'e.organiser_id = o.organiser_id')
                ->leftJoin('checkin c', 'c.event_id = e.id and c.user_id ='.$_GET['user_id'])
                ->leftJoin('checkin d', 'd.event_id = e.id' )
                ->where('e.interest_id IN
                             ( SELECT area_intrest.id FROM area_intrest, user WHERE FIND_IN_SET(area_intrest.id,user.area_intrest) AND user.id='.$_GET['user_id'].')')
                ->groupBy('e.id');

            $dataProvider = new ActiveDataProvider([
                'query' => $query,

            ]);
        }

  return $this->render('event' ,['dataProvider' => $dataProvider]);
}

I am just confused because i am not using any search model here so i dont know how can i search using title of the event .

Answer 1

In view you can use an active form for sending the value

<?php 
      $form = ActiveForm::begin(['id' => 'my-form', 
          'method'=>'get',
          'action' => Url::to('your-controller/event')]); 
?>
      <input type="text" class="form-control app-search" name="my_search" placeholder="Search">
<?= Html::submitButton('search') ?>
<?php ActiveForm::end(); ?>

in your actionEvent you can

$this->layout = 'app';
if (isset($_GET('my_search')) {
   // perform what you nedd ..
}
if(isset($_GET['latitude']) && isset($_GET['longitude'])){