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php - Manually switch _locale in symfony 4

问题描述

I'm absolutely stuck in getting a solution to manually switch the _locale variable in Symfony 4.

I followed these steps, but now I have absolutely no idea how to make a simple switch button in the nav section. I also took a look a this question, but this seems to be an older Symfony version..

Can anyone please help me climb out of this dark hole and explain to me how I can integrate a simple _locale switch button, or at least point me in the right direction?

标签： phpsymfonytwiglocale

解决方案

答案与这个在 Symfony 4 中不适用的答案略有不同。从编辑services.yamlconfig 目录中的文件开始。

{# project/config/services.yaml}

# ...
parameters:
    # ...
    app_locales: [nl_NL, en_EN]

twig:
    # ...
    globals:
        locales: %app_locales%
        # ...

然后添加一个模板以将切换按钮集成到基本模板中的某处。

{# project/templates/_locale_switcher.html.twig #}

{% set route = app.request.attributes.get('_route') %}
{% set route_params = app.request.attributes.get('_route_params') %}
{% set params = route_params|merge(app.request.query.all) %}

{# You may want to not print a flag/link for current view, the "if" here let 
you handle it #}

{% for locale in locales if locale != app.request.locale %}

    <li>
        <a href="{{ path(route, params|merge({ _locale: locale })) }}">
            <img src="{{ asset('img/flags/' ~ locale ~ '.jpg') }}" alt="{{ 
locale }}">
        </a>
    </li>

{% endfor %}

最后将这个全新的模板集成到您的基本模板中。

{# project/templates/base.html.twig #}

{% include '_locale_switcher.html.twig' %}

编辑 Symfony 4.3.4+

根据下面查尔斯的回答，services.yaml文件中的语言环境值应该用引号插入以避免无效的 YAML 错误：

{# project/config/services.yaml}

# ...
parameters:
    # ...
    app_locales: [nl_NL, en_EN]

twig:
    # ...
    globals:
        locales: "%app_locales%"
        # ...

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