我正在尝试从自定义twig扩展中获取配置变量。
如何从配置中获取someVar?
// src/AppBundle/Twig/AppExtension.php
namespace AppBundle\Twig;
class AppExtension extends \Twig_Extension
{
public function getFilters()
{
return array(
new \Twig_SimpleFilter('price', array($this, 'priceFilter')),
);
}
public function priceFilter($number, $decimals = 0, $decPoint = '.', $thousandsSep = ',')
{
$price = number_format($number, $decimals, $decPoint, $thousandsSep);
// HOW TO ACCESS TO CONFIG VARIABLE
$price = '$'.$price;
return $price;
}
public function getName()
{
return 'app_extension';
}
}
# app/config/services.yml
services:
app.twig_extension:
class: AppBundle\Twig\AppExtension
public: false
tags:
- { name: twig.extension }
twig:
debug: "%kernel.debug%"
strict_variables: "%kernel.debug%"
globals:
someVar: "someValue"
答案 0 :(得分:3)
{{someVar}}是正确的,如果您需要在模板中阅读
但是如果你需要在你放置//如何访问CONFIG VARIABLE的扩展名中获得全局内容,请使用以下代码:
/* @var $globals \Twig_Environment */
$globals = $this->container->get('twig');
$vars = $globals->getGlobals();
var_dump($vars['someVar']);
更新: 你需要在扩展中传递容器,所以添加构造函数
public function __construct(ContainerInterface $container)
{
$this->container = $container;
}
并在service.yml传递容器
twig.extension.name:
class: App\SomeBundle\Extensions\ClassTwig
arguments: [@service_container]
tags:
- { name: 'twig.extension' }
答案 1 :(得分:2)
您可以将其作为普通变量访问。
{{someVar}}
见这里:
http://symfony.com/doc/current/cookbook/templating/global_variables.html
我希望有所帮助!