Php Symfony未加载运行时细枝扩展

我按照上的示例在运行时加载一个细枝扩展，但它没有加载：我做错了什么

IN:src/PlotlyBundle/Twig/AppRuntime.php

<?php
namespace PlotlyBundle\Twig;

class AppRuntime
{
    public function __construct()
    {
    }

    public function biDraw()
    {
        return 'awesome text here';
    }
}

<?php
namespace PlotlyBundle\Twig;

use PlotlyBundle\Twig\AppRuntime;

class AppExtension extends \Twig_Extension
{
    public function getFunctions()
    {    
        return [
            new \Twig_SimpleFunction(
                'bi_draw',
                array(AppRuntime::class, 'biDraw')
            ),
        ];
    }
}

   $twig = $this->get('plotly.twig_runtime');
    return $this->render(
        'dashboard/index.html.twig'
    );

IN:src/PlotlyBundle/Twig/AppExtension.php

<?php
namespace PlotlyBundle\Twig;

class AppRuntime
{
    public function __construct()
    {
    }

    public function biDraw()
    {
        return 'awesome text here';
    }
}

<?php
namespace PlotlyBundle\Twig;

use PlotlyBundle\Twig\AppRuntime;

class AppExtension extends \Twig_Extension
{
    public function getFunctions()
    {    
        return [
            new \Twig_SimpleFunction(
                'bi_draw',
                array(AppRuntime::class, 'biDraw')
            ),
        ];
    }
}

   $twig = $this->get('plotly.twig_runtime');
    return $this->render(
        'dashboard/index.html.twig'
    );

IN:app/Resources/views/dashboard/index.html.twig

{{ bi_draw() }}

---

感谢@Federkun的评论，我通过自动连接细枝扩展来修复它：

IN:src/PlotlyBundle/Resources/config/services.yml

services:
    plotly.twig_runtime:
        class: PlotlyBundle\Twig\AppRuntime
        public: true
        tags:
            - { name: twig.runtime }

services:
    # default configuration for services in *this* file
    _defaults:
        # automatically injects dependencies in your services
        autowire: true
        # automatically registers your services as commands, event subscribers, etc.
        autoconfigure: true
        # this means you cannot fetch services directly from the container via $container->get()
        # if you need to do this, you can override this setting on individual services
        public: false

    # this creates a service per class whose id is the fully-qualified class name
    PlotlyBundle\Twig\:
        resource: '../../../../src/PlotlyBundle/Twig/*'
        tags:
            - { name: twig.runtime }

Symfony docs（）上的示例需要更新，以说明必须启用自动布线（如中所述）才能使示例工作

---

我向Symfony docs提交了一份报告。

这感觉不对。。文档不是错了吗？您可以尝试使用

类：PlotlyBundle\Twig\AppExtension

吗？^不，没有错--您是自动接线的吗？否则，您需要用

twig.extension

标记它，我已经尝试过了：当使用xdebug时，我看到构造函数被调用了，但是getFunctions没有被调用。。我应该向我的bundle（PlotlyBundle）添加依赖项注入吗？我在服务中添加了标记。ymlc你能用它更新你的帖子吗？是否已启用服务容器的自动配置选项？（）将

Twig

子名称空间的所有服务标记为

Twig.runtime

不是正确的解决方案。这些服务中的大多数不是运行时，而是扩展。它解决您的问题的原因是，您现在正在将扩展注册为服务（并由于自动配置而标记为扩展），这不是在原始配置中完成的。