无法识别自定义树枝功能 [英] Custom Twig Function Not Recognized

问题描述

我有一个 twig/timber 函数，代码没有显示任何错误，但是当我在我的 twig 模板中使用函数时，出现错误提示不是函数".

这是我在树枝模板中的 fucntions.php 文件中的内容:

add_filter( '木材/树枝', 函数( \Twig_Environment $twig ) {$twig->addFunction(new Twig_Function('get_custom_meta', 'get_custom_meta'));

} );

function get_custom_meta($key,$id){如果(空($ id)){return types_render_field($key,array("raw"=>"true","separator"=>";"));}别的{返回 get_post_meta( $id, 'wpcf-'.$key, true );}}

这就是我在模板中调用函数的方式.

{{ function(get_custom_meta('facebook', event.post_id)) }}

这是在 wordpress 中.谢谢

解决方案

{{ get_custom_meta('facebook', event.post_id ) }}

我认为您可以像这样访问函数而不是通过 function()

/*** 我的自定义 Twig 功能.** @param Twig_Environment $twig* @return $twig*/add_filter( '木材/树枝'，函数( \Twig_Environment $twig ) {$twig->addFunction(new Twig_Function('edit_post_link', 'edit_post_link'));});

当你像这样在木材/树枝钩子中使用 Timber\Twig_Function 在 Twig 中提供一个函数时，你可以像那样使用它

{# single.twig #}<div class="admin-tools">{{ edit_post_link }}

{# 使用默认参数调用 edit_post_link #}{# single-my-post-type.twig #}<div class="admin-tools">{{ edit_post_link(null, '<span class="edit-my-post-type-link">') }}

{# 使用所有默认值调用 edit_post_link，除了第二个参数 #}

function() 用于 wordpress 函数

参考:木材树枝功能

I have a twig/timber function and the code doesn't shows any error but when I go to use function in my twig template there is an error saying '' is not a function.

This is what I have in my fucntions.php file in the twig template:

add_filter( 'timber/twig', function( \Twig_Environment $twig ) {
    $twig->addFunction( new Twig_Function( 'get_custom_meta', 'get_custom_meta' ) );

} );

function get_custom_meta($key,$id){
    if(empty($id)){
       return types_render_field($key,array("raw"=>"true","separator"=>";"));
    }else{
       return get_post_meta( $id, 'wpcf-'.$key, true );
    }
}

and this is how I'm calling the function in the template.

{{ function(get_custom_meta('facebook', event.post_id )) }}

This in in wordpress. Thanks

解决方案

{{ get_custom_meta('facebook', event.post_id ) }}

I think you access functions like this rather than through function()

/**
 * My custom Twig functionality.
 *
 * @param Twig_Environment $twig
 * @return $twig
 */
add_filter( 'timber/twig', function( \Twig_Environment $twig ) {
    $twig->addFunction( new Twig_Function( 'edit_post_link', 'edit_post_link' ) );
} );

when you make a function available in Twig by using Timber\Twig_Function inside the timber/twig hook like this you use it like that

{# single.twig #}
<div class="admin-tools">
    {{ edit_post_link }}
</div>
{# Calls edit_post_link using default arguments #}

{# single-my-post-type.twig #}
<div class="admin-tools">
    {{ edit_post_link(null, '<span class="edit-my-post-type-link">') }}
</div>
{# Calls edit_post_link with all defaults, except for second argument #}

the function() is for wordpress functions

refer to: timber twig functions

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