如何使用Doctrine和Symfony2调试失败的数据库写入？

Question

In a controller I have this after a form is submitted and isValid()

// ...
$em = $this->getDoctrine()->getEntityManager();
$em->persist($form->getData());
$em->flush();
// ...

I have checked the contents of $form->getData() and it looks fine but it's not writing it to the table. I'm not getting any errors in the logs. How can I start debugging this?

Answer 1

in my Entity class, which was for user registration I had a date created field. In order to populate this field I had

// this is the WRONG version
class User{

    //...
    /**
     * @ORM\Column(type="datetime")
     */
    protected $created;


    //...
    public function __construct()
    {
        $this->created = date("Y-m-d H:i:s");
    }


    public function setCreated(\DateTime() $created)
    {
        $this->created = $created;
    }

}

However what I should have had is:

/** 
 * ... other orm settings
 * @ORM\HasLifecycleCallbacks()
 */
class User{

    /**
     * @ORM\Column(type="datetime")
     */
    protected $created;

    //....

    /**
     * @ORM\prePersist
     */
    public function setCreatedValue()
    {
        $this->created = new \DateTime();
    }

}

The reason I didn't spot this is that no error was logged to the log files. I was submitting this form as an ajax call and didn't think to look in the response for that ajax call for the error until I turned on firebug (was relying on the default chrome console)

I don't remember the exact error that can back but it was around the DateTimeType.