如何在yml配置中添加Twig特殊功能

Question

我正在尝试在Symfony 2中使用jpegoptim

这是我的config.yml

# Twig Configuration
twig:
    functions:
        jpegoptim: { output: images/*.jpg }
    debug:            %kernel.debug%
    strict_variables: %kernel.debug%

当我运行程序时出现此错误：

InvalidConfigurationException: Unrecognized options "functions" under "twig"

有什么问题？因为，很明显，函数标签通常存在于twig标签下

注意：我的资产配置

assetic:
 debug:          %kernel.debug%
 use_controller: false
 bundles:        [DemoAsseticGestionRessourcesBundle]
 filters:
    cssrewrite: ~
    jpegoptim:
         bin: %kernel.root_dir%/Ressources/bin/jpegoptim/jpegoptim.exe
    #closure:
    #    jar: %kernel.root_dir%/Resources/java/compiler.jar
    yui_js:
        jar: %kernel.root_dir%/Resources/java/yuicompressor-2.4.7.jar
    yui_css:
        jar: %kernel.root_dir%/Resources/java/yuicompressor-2.4.7.jar
 twig:
    functions:
    jpegoptim: { output: images/*.jpg }

谢谢

Answer 1

这应该有效：

# Twig Configuration
assetic:
    twig:
        functions:
            jpegoptim: { output: images/*.jpg }