Creating a bar chart using ObHighchartsBundle - symfony

Question

I want to create using ObHighchartsBundle a bar chart(image below) but I couldnt do that the chart is rendered empty !! the problem is in the type of the chart bar
is that even possible using the ObHighchartsBundle
My code:
chartingController .php :
public function productionEst($date,$liste1,$liste2,$liste3)
{
$ob = new Highchart();
$dates = $date;
$production = array(
$liste1,
$liste2,
$liste3
);
$ob->chart->type('bar');
$ob->chart->renderTo('container'); // The #id of the div where to render the chart
$ob->plotOptions->bar(
array(
'dataLabels' => array(
'enabled' => true
)
)
);
$ob->title->text('Production);
$ob->xAxis->categories($dates );
$ob->xAxis->title(array('text' => "Horizontal axis title"));
$ob->yAxis->title(array('text' => "Vertical axis title"));
$ob->legend->legend(
array(
'layout' => 'vertical',
'align'=> 'right',
'verticalAlign' =>'top',
'floating'=> true,
'borderWidth' =>1,
'shadow' =>true
)
);
$ob->series($production);
return $ob;
}
index.twig :
<div id="container" style="min-width: 200px; height: 600px; margin: 0 auto"></div>
<script type="text/javascript">
{{ chart(container) }}
</script>