使用CollectionType

Question

使用CollectionType时显示表单时遇到问题。它不显示AchatType输入，只标记“Achat”。

什么错了？我不明白..

我的AchatType：

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder
        ->add('civilite', ChoiceType::class, [
            'choices' => [
            'Mr' => 'Mr',
            'Mme' => 'Mme'
            ]])
        ->add('nom', TextType::class)
        ->add('prenom', TextType::class)
        ->add('commande', EntityType::class, array(
            'class' => 'AppBundle\Entity\Commande',
            ))
       ;
}

我的CommandeType：

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder
        ->add('nb_ticket', ChoiceType::class, [
            'choices' => [
            1 => '1',
            2 => '2',
            3 => '3',
            4 => '4',
            5 => '5',
            6 => '6',
            ],
            'label' => false,
            'expanded' => true,     
            'multiple' => false,
            ])
        ->add('event', EntityType::class, array(
            'class' => 'AppBundle\Entity\Event',
            ))
        ->add('email', EmailType::class)
        ->add('achats', CollectionType::class, array(
            'entry_type' => AchatType::class,
        ))
        // ->add('achats', AchatType::class)
    ;
}

在我的Twig模板中，我有：

<div class="text-center">
    {{ form_start(form) }}
    {% for index, nb_ticket in form.nb_ticket.children %}
        {{ form_widget(nb_ticket)}}
        {{ form_label(nb_ticket) }}
    {% endfor %}
</div>

<div style="display:none">
    {{ form_widget(form.event) }}
</div>
<!-- ======== ETAPE 2 ========  -->   
{% if form.achats.civilite is defined %}
    {{ form_widget(form.achats.civilite) }} 
    {{ form_widget(form.achats.prenom, {'attr':{ "placeholder":"Prenom" }}) }}
    {{ form_widget(form.achats.nom, {'attr':{ "placeholder":"Nom" }}) }}
<div style="display:none">
    {{ form_widget(form.achats.commande) }}
</div>
{% endif %}

<div class="text-white text-center">
    {{ form_widget(form.email, {'attr':{ "placeholder":"Email" }})}}
</div>
    {{ form_end(form) }}

结果与我一样：

{{ form_start(form) }}
{{ form_end(form) }}

我注意到form.achats.civilite没有定义..

如何让它显示所有输入字段或在form.achats中定义form.achats.civilite和其他字段？

Answer 1

如果你有一个活跃的＆＃34; allow_add＆＃34;选项，可以通过＆＃39;原型来呈现此输入。选项：

->add('achats', CollectionType::class, array(
            'entry_type' => AchatType::class,
            'allow_add' => true,
            'prototype' => true,
        ))

然后以表格形式：

{{ form_row(form.achats.vars.prototype}) }}

它应该有用。

有关更多信息，请参阅原型选项

的Symfony文档