Question

我对表单呈现有疑问：我想定义一些相似的表单字段（在数组中传递它们或在循环中创建），然后在像这样的循环中在树枝中渲染它们：

{% for field in form.collection %}
    <li>
        {{ form_label(field) }}
        {{ form_widget(field) }}
    </li>
{% endfor %}

原因：我需要在循环渲染它的同时访问每个字段的标签和小部件（不知道每个字段的名称）。我似乎，唯一的方法是拥有CollectionType。这不是基于任何实体。我看过带有实体示例的文档，但是可以手动添加字段吗？

类似的东西：

class FormcollectionType extends AbstractType
{

    public function buildForm(FormBuilderInterface $builder, array $options)
    {
   

        $builder->add('collection', CollectionType::class, [
            // each entry in the array will be an "ChoiceType" field
            'entry_type' => ChoiceType::class,
            // these options are passed to each "collection" type
            'entry_options' => [
                'attr' => ['class' => 'someclass'],
            ],

            // How to define few ChoiceType fields in CollectionType here, manually ?
        ]);

谢谢您的帮助：）

Answer 1

$builder->add('favoriteCities', CollectionType::class, [
'entry_type'   => ChoiceType::class,
'entry_options'  => [
    'choices'  => [
        'Nashville' => 'nashville',
        'Paris'     => 'paris',
        'Berlin'    => 'berlin',
        'London'    => 'london',
    ],
],
]);

Answer 2

谢谢

实际上，诀窍是“数据”字段...。

如此：

         $builder->add('collection', CollectionType::class, [
            'entry_type'   => ChoiceType::class,
            'entry_options' => [
                'attr' => ['class' => 'someclass'],
                'choices'  => [
                    'Nashville' => 'nashville',
                    'Paris'     => 'paris',
                    'Berlin'    => 'berlin',
                    'London'    => 'london',
                ],
            ],
            'data' => ['choice1Field'  => 'choice1', 
                      'choice2Field'  => 'choice2'  ]
                
            ]);

symfony CollectionType->如何在没有任何实体的情况下将字段手动添加到CollectionType？

2 个答案: