php - Symfony2 - Highcharts 渲染一个空白的 div

Question

我刚刚在 Symfony 2.7 上安装了 Highcharts Bundle，但在尝试从文档(cf https://github.com/marcaube/ObHighchartsBundle/blob/master/Resources/doc/usage.md)中重现“使用示例”时我已经遇到了问题

这是我的代码:

Controller

public function homepageAction() 
{
    $user = $this->getUser();

    $securityContext = $this->get('security.context');
    $authorization = $securityContext->isGranted('ROLE_REGISTERED_USER');

    if ($authorization) {

        // Charts Test

        $ob = new Highchart();
        $ob->chart->renderTo('piechart');
        $ob->title->text('Browser market shares at a specific website in 2010');
        $ob->plotOptions->pie(array(
            'allowPointSelect' => true,
            'cursor' => 'pointer',
            'dataLabels' => array('enabled' => false),
            'showInLegend' => true
        ));
        $data = array(
            array('Firefox', 45.0),
            array('IE', 26.8),
            array('Chrome', 12.8),
            array('Safari', 8.5),
            array('Opera', 6.2),
            array('Others', 0.7),
        );
        $ob->series(array(array('type' => 'pie', 'name' => 'Browser share', 'data' => $data)));

        return $this->render('MVPBundle:User:homepage.html.twig', array(
            'user' => $user,
            'chart' => $ob,
    ));

    } else {

        $url = $this->generateUrl('user_displayCompanyCreationForm');

        return $this->redirect($url);
    }
}

---

查看

<script src='{{ asset('bundles/mvp/js/jquery-2.1.4.js') }}' type="text/javascript"></script>
<script src='{{ asset('bundles/mvp/js/highcharts.js') }}' type="text/javascript"></script>
<script src='{{ asset('bundles/mvp/js/exporting.js') }}' type="text/javascript"></script>

<script type="text/javascript">
    {{ chart(chart) }}
</script>

<div id="piechart" style="min-width: 400px; height: 400px; margin: 0 auto"> </div>

---

经过一些研究，我了解到它可以与 JS 文件的导入相关联，所以我确保文件的路径没问题，并且 Jquery 是在 Highcharts JS 文件之前导入的，所以我真的不知道看看问题出在哪里... :(

如果有任何帮助，我将不胜感激! :)

干杯，

Answer 1

您指的是错误的 html ID

    $ob->chart->renderTo('piechart'); //This is looking for html element with id as piechart
    <div id="linechart" style="min-width: 400px; height: 400px; margin: 0 auto"> </div>

改成

    $ob->chart->renderTo('linechart');