Yii2 Kartik Select2 Ajax控制器 - 结果未显示

Question

I have set up a select2 within my yii2 application. I want the select2 to get the result data from the controller action via ajax. So i looked up the documentation here and made some adaption. Unfortunately no result will be shown, even if i return fixed / plane json result.

view

Select2::widget([
    'name' => 'kv-repo-template',
    'pluginOptions' => [
        'allowClear' => true,
        'minimumInputLength' => 3,
        'language' => [
            'errorLoading' => new JsExpression("function () { return 'Waiting for results...'; }"),
        ],
        'ajax' => [
            'url' => Url::to(['/site/address']),
            'dataType' => 'json',
            'data' => new JsExpression('function(params) { return {q:params.term}; }'),
        ],
        'escapeMarkup' => new JsExpression('function (markup) { return markup; }'),
        'templateResult' => new JsExpression('function(city) { console.log(city); return city.text; }'),
        'templateSelection' => new JsExpression('function (city) { return city.text; }'),
    ],
]);

SiteController.php

public function actionAddress($q = null, $id = null) {
    $out['results'] = ['id' => 1, 'text' => 'test'];
    Yii::$app->response->format = Response::FORMAT_JSON;
    return $out;
}

If i debug, i see that the controller is called. But the templateResult function returns (console.log) only the default value "Searching…"

So, do i configurate the widget wrong? Or do i miss something here?

Thanks in advance, for some help! cheers, Luc

Answer 1

Every Thing is fine but you are returning JSON Object of results key , Instead of Object Please return as Array like.

public function actionAddress($q = null, $id = null) {
   $out['results'] = [['id' => 1, 'text' => 'test']]; //convert it as arrays
   Yii::$app->response->format = Response::FORMAT_JSON;
   return $out;
}