如何自定义 CollectionType() 项？

发布于 2024-12-16 00:35:12 字数 1505 浏览 1 评论 0原文

Symfony2 文档的 § /a> 展示了一种用于自定义单个字段的出色技术。我经常使用它，但有一个特定的 Type 我很难进行自定义：CollectionType() 自定义集合本身是相当困难的很简单，您可以执行以下操作：

{% block _mynamespace_mybundle_mytype_mycollectionfield_row %}
{% if prototype is defined %}
    {% set attr = attr|merge({'data-prototype': form_widget(prototype) }) %}
{% endif %}
{% spaceless %}
    <ul {{ block('widget_container_attributes') }}>
        {% spaceless %}
            {{ form_errors(form) }}
            {% for child in form %}
            <li>
              {{form_widget(child)}}
            </li>
            {% endfor %}
        {% endspaceless %}
        {{ form_rest(form) }}
    </ul>
{% endspaceless %}
{% endblock %}

但是如何自定义集合的每个元素？如何使用Twig自定义data-prototype（data-prototype是一个特殊的属性，用于使用js添加新项目）？

我尝试做这样的事情（对于 data-prototype）：

{% block _mynamespace_mybundle_mytype_mycollectionfield_$$name$$_row %}
customization ok!
{% endblock %}

但是我收到错误，因为我不知道如何转义 $

关于这些项目，我尝试了很多事情：

{% block _mynamespace_mybundle_mytype_mycollectionfield_item_subfield_row %}
customization ok!
{% endblock %}

{% block _mynamespace_mybundle_mytype_mycollectionfield_element_subfield_row %}
customization ok!
{% endblock %}

它们都不起作用。

原文

This § of the Symfony2 documentation shows an awesome technique for customizing an individual field. I'm using it a lot but there is one particular Type for which I'm having a hard time doing the customization : the CollectionType() Customizing the collection itself is quite easy, you can do something like this:

{% block _mynamespace_mybundle_mytype_mycollectionfield_row %}
{% if prototype is defined %}
    {% set attr = attr|merge({'data-prototype': form_widget(prototype) }) %}
{% endif %}
{% spaceless %}
    <ul {{ block('widget_container_attributes') }}>
        {% spaceless %}
            {{ form_errors(form) }}
            {% for child in form %}
            <li>
              {{form_widget(child)}}
            </li>
            {% endfor %}
        {% endspaceless %}
        {{ form_rest(form) }}
    </ul>
{% endspaceless %}
{% endblock %}

But how can you customize each element of the collection ? And how can you customize the data-prototype using Twig (the data-prototype is a special attribute used to add new items with js)?

I tried doing something like this (for the data-prototype):

{% block _mynamespace_mybundle_mytype_mycollectionfield_$name$_row %}
customization ok!
{% endblock %}

But I get errors, because I don't know how to escape the $

Regarding the items, I tried many things:

{% block _mynamespace_mybundle_mytype_mycollectionfield_item_subfield_row %}
customization ok!
{% endblock %}

{% block _mynamespace_mybundle_mytype_mycollectionfield_element_subfield_row %}
customization ok!
{% endblock %}

None of them work.

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