symfony2多嵌套表单原型

Question

只使用一个集合很好，但是我需要编辑外部窗体的原型，所以它为每一行呈现内部窗体的原型。

你知道我该怎么做吗？还有什么是最好的储蓄方式

编辑：现在我正在尝试呈现嵌套窗体的原型：

  <ul class="characteristics-container" data-prototype="{{ form_widget(form.characteristics.vars.prototype)|e }}" data-prototype-options="{{ form_widget(form.characteristics.options.vars.prototype|e ) }}">
                    {# iterate over each existing tag and render its only field: name #}
                    {% for characteristic in form.characteristics %}
                        <li>{{ form_row(characteristic.name) }}</li>

                        <div class="characteristics-options">
                            {% for opt in form.characteristics.options %}

                            {% endfor %}                     
                        </div>


                    {% endfor %}
                </ul>

Method "options" for object "Symfony\Component\Form\FormView" does not exist in 

$builder              
            ->add('characteristics','collection', array(
                'label'         => 'Caracteristicas',
                 'type'         => new PromotionCharacteristicType(),
                 'allow_add'    => true,
                 'allow_delete' => true,
                 'by_reference' => false
            ))

 $builder
            ->add('name',NULL, array('label'  => 'Nome'))
            ->add('options', 'collection', array(
                'type' => new PromotionCharacteristicOptionType(),
                'allow_add' => true,
                'allow_delete' => true,      
                'prototype' => true,
                'by_reference' => false,
            ))                       
        ;

促销特征选择类型

 $builder
            ->add('name',NULL, array('label'  => 'Nome')) 
        ;

第一级原型，工作很好。

Answer 1

您需要保留来自不同集合的两个原型。Symfony提供将它们存储在div标记的data-prototype属性中，该属性包装集合。在你的情况下，效率很低。所以你可以在那里的空div中手工渲染它

示例您有字符表单

class CharacterType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('opts', 'collection', array(
            'type' => new OptionType(),
            'allow_add' => true,
            'allow_delete' => true,
            'prototype' => true,
            'prototype_name' => '__opt_prot__'
        ));
        $builder->add('char_desc', 'text');
    }

    public function getName()
    {
        return 'char';
    }
}

然后创建包含字符集合的窗体

$form = $this->createFormBuilder()
    ->add('chars', 'collection', array(
        'type' => new CharacterType(),
        'allow_add' => true,
        'allow_delete' => true,
        'prototype_name' => '__char_prot__'
    ))
    ->getForm();

    # example data
    $form->setData(
        array(
            'chars' => array(
                array('options' => array(), 'char_desc' => 1),
                array('options' => array(), 'char_desc' => 2),
            ),
        )
    );

<div
    id="prots"
    data-prototype-opt="{{ form_widget(form.chars.vars.prototype.children['opts'].vars.prototype) | e }}"
    data-prototype-char="{{ form_widget(form.chars.vars.prototype) | e }}"
>
</div>

{% for char in form.chars %}
    {{ form_row(char.char_desc) }}
    <label for="">opts</label>
    {% for opt in char.opts %}
        {{ form_row(opt.text) }}
    {% endfor %}
{% endfor %}