1

好的，我得到了下面描述的 FormType。我将这个 Form 类用于创建和编辑表单。我决定使用选项数组中的属性设置默认日期（from_date及to_date以下） 。data这在设置默认日期方面做得很好，事实上，做得太好了。它还覆盖了编辑表单中的现有日期，这根本不好，真的。

如何设置真正的“默认”值，而不是“始终”值？

<?php

namespace TechPeople\InvoiceBundle\Form;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;
use Symfony\Component\Security\Core\SecurityContext;


class InvoiceType extends AbstractType
{
    private $user;

    public function __construct(SecurityContext $security_context)
    {
        $this->user = $security_context->getToken()->getUser();
    }

    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $lastMonth = new \DateTime();$lastMonth->modify('-1 month');
        $builder
            ->add('month', 'choice', array(
                'data' => $lastMonth->format('F'),
                'choices' => array(
                    "January" => "January",
                    "February" => "February",
                    "March" => "March",
                    "April" => "April",
                    "May" => "May",
                    "June" => "June",
                    "July" => "July",
                    "August" => "August",
                    "September" => "September",
                    "October" => "October",
                    "Novemeber" => "Novemeber",
                    "December" => "December",
                )
            ))
            ->add('year', null, array(
                'data' => $lastMonth->format('Y')
            ))
            ->add('from_date', 'date', array(
                 'label' => 'From',
                 'data' => new \DateTime(),
            ))
            ->add('to_date', 'date', array(
                 'label' => 'To',
                 //'data' => new \DateTime(),
            ))
            ->add('hours')
            ->add('expenses')
            ->add('expense_amount', 'money',
                array(
                    'required' => false,
                ))
            ->add('attachment', 'file',
                array(
                    'path'=>$options['data']->getAttachmentPath(),
                    'required' => false,
                )
            )
        ;
        if($this->user->hasRole('ROLE_ADMIN')){
            $builder->add('vendor');
        }
    }

    public function setDefaultOptions(OptionsResolverInterface $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'TechPeople\InvoiceBundle\Entity\Invoice'
        ));
    }

    public function getName()
    {
        return 'techpeople_invoicebundle_invoicetype';
    }
}
4

1 回答 1

4

将它设置在实体上，或者您将用作表单数据的任何对象上，在构造函数中或作为默认值！

class Invoice {

    private $month;
    private $year;
    private $from_date;
    private $to_date;
    //...

    public function __construct()
    {
        $lastMonth = new \DateTime('now - 1 month');
        $this->month = $lastMonth->format('F');
        $this->year = $lastMonth->format('Y');
        $this->from_date = new \DateTime;
        $this->to_date = new \DateTime;
        //...
    }
}

它将为创建表单设置这两个字段，并且在持久实体的情况下，这些值将在加载时被存储的数据覆盖。

于 2013-01-14T09:45:35.047 回答