如何将变量传递给form_theme? [英] How to pass a variable to form_theme?

问题描述

我想为我的表单设置主题，以便该字段的标签显示当前的语言环境，例如

I want to theme my form so that the field's label show the current locale, something like

姓名(英文):

所以我想像这样重写块 generic_label :

So I would like to rewrite block generic_label like that :

{# form_theme.html.twig #}

{% block generic_label %}
{% spaceless %}
    {% if required %}
        {% set attr = attr|merge({'class': attr.class|default('') ~ ' required'}) %}
    {% endif %}
    <label{% for attrname,attrvalue in attr %} {{attrname}}="{{attrvalue}}"{% endfor %}>{{ label|trans }} (app.session.locale)</label>
{% endspaceless %}
{% endblock %}

并将其导入我的模板:

{% form_theme options 'myBundle:Object:form_theme.html.twig' %}

但无法在表单模板中访问 app 变量.如何将变量传递给表单主题?

but the app variable is not accessible in the form template. How can I pass a variable to a form theme ?

推荐答案

在当前版本的 twig(至于 2016)中是可能的.在您的模板中使用以下内容:

In current version of twig (as for 2016) it is possible. In your template use the following like this:

{{ form_row(form.content, {'testvar' : 'this is test variable'}) }}

然后，在您的主题文件中，只需使用:

Then, in your theme file, just use:

{{testvar}}

当然，您将使用您需要的字段名称而不是 form.content.干杯，克里斯

of course instead of form.content you will use the field name you need. Cheers, Chris

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