[英]Recursive macro in Twig
我已經為Twig添加了一個宏,我試圖讓宏調用自己。 似乎使用_self現在似乎不贊成並且不起作用,返回錯誤:
using the dot notation on an instance of Twig_Template is deprecated since version 1.28 and won't be supported anymore in 2.0.
如果我將_self導入為x,那么當我最初調用宏時它會起作用:
{% import _self as twigdebug %}
{{ twigdebug.recursiveTree() }}
但我不能使用_self或twigdebug.recursiveTree遞歸調用宏。
有沒有辦法做到這一點?
例:
{% macro recursiveCategory(category) %}
{% import _self as self %}
<li>
<h4><a href="{{ path(category.route, category.routeParams) }}">{{ category }}</a></h4>
{% if category.children|length %}
<ul>
{% for child in category.children %}
{{ self.recursiveCategory(child) }}
{% endfor %}
</ul>
{% endif %}
</li>
{% endmacro %}
{% from _self import recursiveCategory %}
<div id="categories">
<ul>
{% for category in categories %}
{{ recursiveCategory(category) }}
{% endfor %}
</ul>
</div>
它是用Twig的宏文檔編寫的:
Twig宏無法訪問當前模板變量
您還必須在模板中import
self並在宏中import
:
{% macro recursiveTree() %}
{# ... #}
{# Import and call from macro scope #}
{% import _self as twigdebug %}
{{ twigdebug.recursiveTree() }}
{% endmacro %}
{# Import and call from template scope #}
{% import _self as twigdebug %}
{{ twigdebug.recursiveTree() }}
或者您可以將導入的_self
對象直接傳遞給宏。
{% macro recursiveTree(twigdebug) %}
{# ... #}
{# Call from macro parameter #}
{# and add the parameter to the recursive call #}
{{ twigdebug.recursiveTree(twigdebug) }}
{% endmacro %}
{# Import and call from template scope #}
{% import _self as twigdebug %}
{{ twigdebug.recursiveTree(twigdebug) }}
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