Symfony2控制器不会捕获异常

问题描述

这是我的删除操作的路由处理程序。只要项目没有任何关联，它就可以正常工作。

This is the route handler for my delete action. It works well as long as the item does not have any associations.

public function projectDeleteAction()
{
    try {
        $request = $this->get('request');
        $my_id = $request->query->get('id');

        $em = $this->get('doctrine.orm.entity_manager');

        $item = $em->find('MyBundle:Main', $my_id);

        $em->remove($item);
        $em->flush();

        $info = $item->getName();
        $result = 0;
    }
    catch (Exception $e) {
        $info = toString($e);
        $result = -1;
    }

    return $this->render('MyBundle:Main:response.xml.twig',
            array('info' => $info, 'result' => $result ));
}

我已经解决了尝试删除具有关联的项目的错误，但是通过这个过程，flush就是抛出PDOException。我尝试了各种方法来捕获它，但似乎在Symfony2中被捕获，然后它响应一个HTTP 500错误。有没有办法，我可以让Symfony2没有抓住这个，以便我可以处理它？这是使用AJAX的XML响应，所以我宁愿只是发送一个上面的错误代码。

I have already solved the error of trying to delete an item with associations, but through this process, the "flush" was throwing PDOException. I tried various ways to catch it, but it appears to be getting caught inside Symfony2 and then it responds with a HTTP 500 error. Is there a way that I can have Symfony2 not catch this so that I can handle it? This is an XML response using AJAX and so I would rather just send an error code per above.

推荐答案

尝试更改异常→ \Exception 如果您没有指定 PDOException as 异常在使用语句中。 PHP尝试找到 \YourNamespaceWithController\Exception 而不是 \Exception 。

Try to change Exception → \Exception if you didn't specified PDOException as Exception in a use statement. PHP tries to find \YourNamespaceWithController\Exception instead of \Exception.

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