为了处理我的表单集合，我有一个 block 集合小部件的自定义表单主题。此 block 集合小部件呈现为表格，因此取决于 block_collection_header 和 block_collection_body。

block 集合小部件始终保持不变，但有时我会自定义其他两个 block ， block 集合标题和 block 集合主体

我的工作代码:

{# From file myview.html.twig #}
{% form_theme form ':Model:prototype_table_collection.html.twig' %}
{% form(form) %}

Ant 这个表单主题如下:

{# From file ':Model:prototype_table_collection.html.twig' #}
{% block collection_widget %}
    {% spaceless %}
        <div class="collection">
            {% if prototype is defined %}
                {% set body = prototype %}
                {% set attr = attr|merge({'data-prototype': block('collection_body') }) %}
                {% set header = prototype %}
                {% set attr = attr|merge({'data-header': block('collection_header') }) %}
            {% endif %}

            {% if form.vars.allow_delete is defined and form.vars.allow_delete %}
                {% set allow_delete = true %}
            {% else %}
                {% set allow_delete = false %}
            {% endif %}


            <div {{ block('widget_container_attributes') }} class="protoype">
                {{ form_errors(form) }}
                <table class="subtable table">
                    <thead>
                        <tr class="headers" style="display: none;">
                            {% if form.children|length > 0 %}
                                {% if form.children[0]|length > 0 %}
                                    {% set header = form.children[0] %}
                                    {{ block('collection_header') }}
                                {% endif %}
                            {% endif %}
                        </tr>
                    </thead>
                    <tbody class="container_rows">

                    {% for rows in form %}
                    {% spaceless %}
                        {% if rows.children|length > 0 %}
                                {% set body = rows %}
                                {{ block('collection_body') }}
                        {% endif %}
                    {% endspaceless %}
                    {% endfor %}

                    </tbody>
                </table>
                {% if prototype is defined %}
                    {% if form.vars.attr['data-add_label'] is defined %}
                        {% set add_label = form.vars.attr['data-add_label'] ~ ' ' %}
                    {% else %}
                        {% set add_label = 'Ajouter  ' %}
                    {% endif %}
                    <a href="#/" class="add_button btn btn-default btn-sm pull-right">{{ add_label }}<i class="fa fa-plus"></i></a>
                {% endif %}
                <br>
            </div>
        </div>
    {% endspaceless %}
{% endblock collection_widget %}

{% block collection_header %}
    {% for field in header %}
        <th>
            {% if 'checkbox' not in field.vars.block_prefixes %}
                {{ form_label(field)|raw }}
            {% else %}
                {% if field.vars.attr['data-label'] is defined %}
                    {{ field.vars.attr['data-label'] }}
                {% else %}
                    Options
                {% endif %}
            {% endif %}
        </th>
    {% endfor %}
    {% if allow_delete %}
        <th class="align_center">Supprimer</th>
    {% endif %}
{% endblock %}

{% block collection_body %}
    {% spaceless %}
    {% set fieldNum = 1 %}
    <tr class="row_to_delete child_collection">
        {{ form_errors(body) }}
        {% for field in body %}
            <td class="field{{ fieldNum }} data-label">
                {{ form_widget(field) }}
                {{ form_errors(field) }}
            </td>
            {% set fieldNum = fieldNum + 1 %}
        {% endfor %}
        {% if allow_delete %}
            <td class="align_center align_middle"><a href="#/" class="fmu_delete_button btn btn-default btn-xs"><i class="fa fa-times"></i></a></td>
        {% endif %}
    </tr>
    {% endspaceless %}
{% endblock %}

我想使用但不起作用的代码:

View 保持不变

{# From file myview.html.twig #}
{% form_theme form ':Model:prototype_table_collection.html.twig' %}
{% form(form) %}

这里我试图从第一个 block 中外部化代码

{# From file ':Model:prototype_table_collection.html.twig' #}
{% block collection_widget %}
    {{include(':Model:collection_widget.html.twig')}}
{%end block%}

{% block collection_header %}
{#stays the same as the previous code for this block. It is called by the block collection_widget #}
{%end block%}

{% block collection_body %}
{#stays the same as the previous code for this block. It is called by the block collection_widget #}
{%end block%}

新的外部文件:

{#From file ':Model:collection_widget.html.twig' #}
{# Here I put the same exact code as I had before inside the block collection_widget, I'm not changing the code, I'm just trying to externalize this part #}

包含不起作用，我的收藏无法加载。

我尝试过扩展布局，但它也不起作用。 示例:

{# From file ':Model:prototype_table_collection.html.twig' #}
{% extends :Model:parent.html.twig' %}

{% block content %}

{% block collection_header %}
{#stays the same as the previous code for this block. It is called by the block collection_widget #}
{%end block%}

{% block collection_body %}
{#stays the same as the previous code for this block. It is called by the block collection_widget #}
{%end block%}

{%end block%}

和 parent :

{# From file ':Model:parent.html.twig' #}

{% block collection_widget %}
    {# same code as brefore #}
{%end block%}

{% block content %}
{% endblock %}

如何避免在我使用它的每个表单模板中重复此 {% block collection_widget %} 代码？

最佳答案

我相信您正在寻找 horizontal reuse功能:

Horizontal reuse is an advanced Twig feature that is hardly ever needed in regular templates. It is mainly used by projects that need to make template blocks reusable without using inheritance.

只需在主模板中包含 use 标签即可:

{# :Model:prototype_table_collection.html.twig #}

{% use ':Model:collection_widget.html.twig' %}

{% block collection_header %}
    {# code #}
{%end block%}

{% block collection_body %}
    {# code #}
{%end block%}

然后定义 collection_widget block ，就像它首先在 prototype_table_collection.html.twig 文件中一样:

{# :Model:collection_widget.html.twig #}
{% block collection_widget %}
    {# code #}
{% endblock %}

关于php - symfony2/ Twig : how to use include in a block used in a form theme?，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/29452522/