// messages.en.yml
termsAndConditions:
title: Terms and Conditions
paragraph:
- Paragraph text...blah blah...1
- Paragraph text...blah blah...2
- Paragraph text...blah blah...3
- Paragraph text...blah blah...n
// termsandconditions.html.twig
//试过……
{% for i in range(1,termsAndConditions.paragraph|length) -%}
<p>{% trans %}termsAndConditions.paragraph. {{ i }}{% endtrans %}</p>
{%- endfor %}
//并试过……
{% for i in range(1,termsAndConditions.paragraph|length) -%}
<p>{{ 'termsAndConditions.paragraph.' ~ i ~ |trans }}</p>
{%- endfor %}
解决方法:
您需要使用成对的键:值才能使事情发挥作用:
// messages.en.yml
termsAndConditions:
title: Terms and Conditions
paragraph:
1: Paragraph text...blah blah...1
2: Paragraph text...blah blah...2
3: Paragraph text...blah blah...3
4: Paragraph text...blah blah...n
此外,由于您希望使用变量进行翻译,因此可以通过这种方式访问翻译{{(‘termsAndConditions.paragraph.’〜i)| trans}}.
我已经硬编码了4而不是termsAndConditions.paragraph | length.不确定你是否可以从树枝模板中访问它…
// termsandconditions.html.twig
{% for i in range(1,4) -%}
<p>{{('termsAndConditions.paragraph.'~i)|trans}}</p>
{%- endfor %}
它应该工作.希望能帮助到你.
UPDATE
除非你在模板中定义了变量或者你通过控制器注入了变量,否则termsAndConditions.paragraph | length是没有意义的.
解决方案
解决方案1.在您的控制器中,访问yaml并获取翻译数量,然后将其传递给模板,就是这样.
解决方案2.创建服务并将转换器服务注入其中.在控制器中创建一个计算特定键元素数量的方法.注入转换器服务比直接读取yaml更好,因为它在读取目录时会缓存它.
解决方案3.与2相同但创建树枝过滤器.我打算去看这个,因为它看起来很有趣.
解决方案3
让我们从创建扩展开始:
namespace Acme\DemoBundle\Twig\Extension;
class TransLengthExtension extends \Twig_Extension
{
private $translator;
public function __construct($translator) {
$this->translator = $translator;
}
public function getFilters()
{
return array(
new \Twig_SimpleFilter('translength', array($this, 'translengthFilter')),
);
}
public function translengthFilter($id, $domain = null)
{
if (null === $domain) {
$domain = 'messages';
}
$i = 0;
$g = $this->translator->getMessages();
foreach($g["messages"] as $key => $message) {
if(substr( $key, 0, strlen($id) ) === $id ) {
$i++;
}
}
return $i;
}
public function getName()
{
return 'acme_extension';
}
}
如您所见,它计算翻译目录中$id出现次数.翻译负责区域设置,加载适当的目录等.它还缓存了在性能方面非常好的结果.
services:
acme.twig.acme_extension:
class: Acme\DemoBundle\Twig\Extension\TransLengthExtension
arguments:
- "@translator"
tags:
- { name: twig.extension }
现在,在您的模板中:
{% set end = 'termsAndConditions.paragraph'|translength %}
{% for i in range(1,end) -%}
<p>{{('termsAndConditions.paragraph.'~i)|trans}}</p>
{%- endfor %}
希望能帮助到你.