模板中的 Twig 函数 'render' 去哪儿了？

Question

我刚刚更新了我的 Silex 应用程序的依赖项，现在我的一个模板突然失败并出现错误：

Twig_Error_Syntax: The function "render" does not exist.

在我执行 composer update 之前，它运行良好。从作曲家的输出中更新了以下内容：

- Removing symfony/options-resolver (v2.6.7)
- Installing symfony/options-resolver (v2.7.0)
  Downloading: 100%

- Removing symfony/intl (v2.6.7)
- Installing symfony/intl (v2.7.0)
  Downloading: 100%

- Removing symfony/form (v2.6.7)
- Installing symfony/form (v2.7.0)
  Downloading: 100%

- Removing symfony/translation (v2.6.7)
- Installing symfony/translation (v2.7.0)
  Downloading: 100%

- Removing symfony/validator (v2.6.7)
- Installing symfony/validator (v2.7.0)
  Downloading: 100%

- Removing symfony/security (v2.6.7)
- Installing symfony/security (v2.7.0)
  Downloading: 100%

- Removing symfony/finder (v2.6.7)
- Installing symfony/finder (v2.7.0)
  Downloading: 100%

- Removing symfony/process (v2.6.7)
- Installing symfony/process (v2.7.0)
  Downloading: 100%

- Removing symfony/twig-bridge (v2.6.7)
- Installing symfony/twig-bridge (v2.7.0)
  Downloading: 100%

- Removing symfony/web-profiler-bundle (v2.6.7)
- Installing symfony/web-profiler-bundle (v2.7.0)
  Downloading: 100%

- Removing symfony/stopwatch (v2.6.7)
- Installing symfony/stopwatch (v2.7.0)
  Downloading: 100%

在我的模板中运行的代码是：

{{ render (url('navigation')) | raw }}

我找不到任何表明此功能已被弃用或已被替换的信息。我不确定是哪个更新导致了这个问题，但我怀疑是 Twig-Bridge。我正在使用 Twig 版本 1.18.1.

我对这里的问题有点困惑，它给我带来了一些问题，所以任何帮助都会很好。

我承认我应该确定我正在使用的软件包的版本，这样我就可以更有条不紊地测试升级。

谢谢拉塞尔

更新 1：

提供更多上下文的更新。

composer.json

"require": {
    "silex/silex": "~1.2",
    "silex/web-profiler": "1.0.*@dev",

    "ruflin/elastica": "1.3.*@dev",
    "dflydev/doctrine-orm-service-provider": "1.0.*@dev",

    "monolog/monolog": "1.9.1",

    "twig/twig": "1.18.*@dev",
    "twig/extensions": "1.2.*@dev",

    "symfony/yaml": "~2.4",
    "symfony/console": "~2.4",
    "symfony/twig-bridge": "~2.4",
    "symfony/config": "~2.4",
    "symfony/monolog-bridge": "~2.4",
    "symfony/serializer": "~2.4",
    "symfony/form": "~2.4",
    "symfony/validator": "~2.4",
    "symfony/translation": "~2.4",
    "symfony/security": "~2.4",

    "macedigital/silex-jms-serializer": "1.0.0",
    "jdesrosiers/silex-jms-serializer-provider": "~0.1",

    "mheap/silex-gravatar": "dev-master",
    "mheap/gravatar-php": "dev-master",
    "mheap/silex-assetic": "1.0.4",

    "knplabs/knp-menu": "2.0.*@dev",

    "predis/service-provider": "dev-master",

    "pear/archive_tar": "dev-master",
    "pear/pear_exception": "1.0.*@dev",
    "wapmorgan/unified-archive": "dev-master",

    "sybio/image-workshop": "dev-master",
    "sybio/gif-frame-extractor": "dev-master",
    "sybio/gif-creator": "dev-master",

    "paypal/rest-api-sdk-php" : "*",

    "kilte/silex-pagination": "1.1.*@dev",

    "thispagecannotbefound/silex-markdown-parser": "dev-master",

    "erusev/parsedown": "~1.4",
    "erusev/parsedown-extra": "dev-master"
 }

我使用以下方法注册 Twig 和 UrlGenerator 服务：

$app->register ( new \Silex\Provider\UrlGeneratorServiceProvider () );
$app -> register (new \Silex\Provider\TwigServiceProvider(), array(
        'twig.options' => array("debug" => true)
    ));

$app['twig'] = $app -> share($app -> extend('twig', function($twig, $app) {
        $twig -> addExtension(new \Twig_Extension_Debug());
        return $twig;
    }));

Twig 本身仍在工作，任何没有“{{ render }}”的模板都可以正常工作。

Answer 1

确保你有：

twig/twig（也许您在执行 composer 更新之前删除了它）并且 symfony/twig-bridge 通过 composer 安装。
和

注册TwigServiceProvider()和UrlGeneratorServiceProvider()

$app->register(new Silex\Provider\TwigServiceProvider(), array(  
  'twig.path' => \__DIR__.'/path/to/templates/',  
));

$app->register(new UrlGeneratorServiceProvider());

Answer 2

我遇到了同样的问题。您是否在注册 Web Profiler 之前注册了 HttpFragmentServiceProvider？这并不明显，但文档中提到了它 here。它对我来说效果很好。

此致

模板中的 Twig 函数 'render' 去哪儿了？

Where has the Twig function 'render' in templates gone?

php

twig

silex