symfony - form use curremt datatime -


i have form datetyoe field

  $builder->add('dataspesa',datetype::class,array(                     'data' => new \datetime("now"),                     'label'=>false,                      'widget'=>'single_text',                      'attr' => array('style' => 'width: 100%;margin-top:10px;',                          'class' => 'js-datepicker'                           )                 ))

now want use form in edit form , use use save datetime .. try in way don't work , i'm sure best way

   if($options['data']->getdataspesa()){             $data_spesa=$options['data']['dataspesa']->getdata(); ->>> syntax error  don't understand correct way have datetime value         }else{             $data_spesa=new \datetime("now");         }          ->add('dataspesa',datetype::class,array(                      'label'=>false,                      'data'=>$data_spesa,  -> correct way???                     'widget'=>'single_text',                      'attr' => array('style' => 'width: 100%;margin-top:10px;',                          'class' => 'js-datepicker'                           )                 ))

to better understand .. use form in 2 controller. in home page 

 /**      * @route("/", name="homepage")      */     public function indexaction(request $request)     {                // crea nuovo         $voce_costo = new vocecosto();         $form = $this->createform(vocecostotype::class, $voce_costo);         $form->handlerequest($request);          if ($form->issubmitted() && $form->isvalid()) {        return $this->render('default/add/vocecosto.html.twig', array(                     'form' => $form->createview()         ));     }

in want date set default current date

in other controller (edit controller)

    /**      * @route("/edit/{id_vocecosto}", name="edit_voce")      */     public function editvocecostoaction(request $request,$id_vocecosto)     {                // crea nuovo         $voce_costo =  $this->getdoctrine()                 ->getrepository('appbundle:vocecosto')                 ->find($id_vocecosto);         $form = $this->createform(vocecostotype::class, $voce_costo);         $form->handlerequest($request);          if ($form->issubmitted() && $form->isvalid()) {            }         return $this->render('default/edit/voce_costo.html.twig', array(                     'form' => $form->createview()         ));     }

here want value data saved in database


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