Symfony 2表单以日期为关键但不在表单上

Question

So I have this simple form in symfony where I only have 3 fields. All ids working to here one entity that is not on form but it's in the DB is column df_date and it's type DATE in DB.

Here is that entity:

 /**
 * @ORM\Column(type="date")
 * @ORM\Id
 */

 protected $df_date;

 /**
 * Set df_date
 *
 * @param \DateTime $dfDate
 * @return WeatherSpecials
 */

public function setDfDate($dfDate)
{
    $this->df_date = $dfDate;

    return $this;
}

/**
 * Get df_date
 *
 * @return \DateTime 
 */

public function getDfDate()
{
    return $this->df_date;
}

Controller:

    public function ajax_weather_specialsAction(Request $request, $main_id)
{

    $params = array();

    if (!$main_id) {
        /*
        $repository = $this->getDoctrine()
            ->getRepository('AppBundle:WeatherSpecials');
        $weather_specials = $repository->find($main_id);
        */
    } else {
        $weather_specials = new WeatherSpecials;
    }

    $form = $this->createFormBuilder($weather_specials)
        ->add('df_weather', 'choice', array(
            'choices'  => array(
                null, 'SU', 'PC', 'CL', 'RN'
            ),
            'label' => false, 'required' => true,
        ))
        ->add('df_temptur', 'number', array('label' => false, 'required' => true))
        ->add('df_specday', 'text', array('label' => false, 'required' => false))
        ->add('save', 'submit', array('attr' => array('class' => 'btn btn-primary')))
        ->getForm();

    $form->handleRequest($request);

    if ($form->isSubmitted()) {
        if ($form->isValid()) {
            $em = $this->getDoctrine()->getManager();
            $em->persist($weather_specials);

            // How to set df_date here???

            $em->flush();
        }
    }

    $data['status'] = 'success';
    $data['html'] = $this->render('sales_tabs/weather_specials.twig', array('form' => $form->createView()))->getContent();

    return new JsonResponse($data);
}

And the question is, how to set the df_date before I persist that form to the DB?

Answer 1

Assuming that WeatherSpecials is the entity that you want to set df_date on either set it before you persist;

if ($form->isValid()) {
    $em = $this->getDoctrine()->getManager();
    $weather_specials->setDfDate(new \DateTime());
    $em->persist($weather_specials);
    $em->flush();
}

or use the doctrine HasLifecycleCallbacks;

/**
 * WeatherSpecials
 *
 * @ORM\Table(name="weather_specials")
 * @ORM\Entity(repositoryClass="AppBundle\Entity\WeatherSpecialsRepository")
 * @ORM\HasLifecycleCallbacks
 */
class WeatherSpecials
{
    // other stuff

    /**
     * @ORM\PrePersist
     */
    public function prePersist(\Doctrine\ORM\Event\LifecycleEventArgs $event)
    {
        $this->df_date = new DateTime();
    }

    /**
     * @ORM\PreUpdate
     */
    public function preUpdate(\Doctrine\ORM\Event\LifecycleEventArgs $event)
    {
        $this->df_date = new DateTime();
    }
}