Typeahead is not show options - php

Question

I have some problems with my project. I use typeahead to make a search. So, i use typeahead with handlebars. But, there is a problem because it's not show options. This is my code:
model:
public function getDataForJson($q = null)
{
if($q === null)
{
$penerimas = Penerima::findAll('');
if(empty($penerimas))
{
return array('value' => 'No Data');
}
else
{
$u = array();
foreach ($penerimas as $penerima)
{
$u[] = ['value' => $penerima->nama];
}
return $u;
}
}
else
{
$query = new Query;
$query->select(['nama'])->from('tb_penerima');
$data = $query->createCommand()->queryAll();
if(empty($data))
{
return array('value' => 'No Data');
}
else
{
$return = [];
foreach ($data as $datum)
{
$out[] = ['value' => $datum['nama']];
}
return $out;
}
}
}
view:
<?php
echo '<label class="control-label">Select Repository</label>';
$template = '<div><p class="repo-language">{{no_telepon}}</p>' .
'<p class="repo-name">{{nama}}</p>';
'<p class="repo-description">{{email}}</p></div>';
echo Typeahead::widget([
'name' => 'twitter_oss',
'options' => ['placeholder' => 'Filter as you type ...'],
'dataset' => [
[
'prefetch' => Url::to(['tertuju/getpenerima']),
'datumTokenizer' => "Bloodhound.tokenizers.obj.whitespace('value')",
'display' => 'value',
'templates' => [
'notFound' => '<div class="text-danger" style="padding:0 8px">Unable to find repositories for selected query.</div>',
'suggestion' => new JsExpression("Handlebars.compile('{$template}')")
]
]
]
]);
?>
controller:
public function actionGetpenerima($q = null)
{
return Json::encode(Tertuju::getDataForJson($q));
}