计算树枝中循环内的关系 [英] count relations inside loop in twig

问题描述

我使用Symfony2和树枝模板.想一想与stackoverflow完全相同的Q& A.有问题列表，包括得分，答案，观看次数等.如何计算树枝中循环内的问题的答案?问与答表之间存在OneToMany关系.

I use Symfony2 and twig templating. Think of the Q&A exact same as stackoverflow. There are list of questions with the count of score, answers, views and so on. How to count the answers of the qeustions inside loop in twig? There are OneToMany relation between Question and Answer tables.

{% for question in questions %}
    <li>{{ question.score }}</li>
    <li>{# there should be the count // count($question->getAnswers()) #}</li>
    <li>{{ question.view }}</li>
{% endfor %}

或者如果有更好的方法可以做到这一点，我愿意提出建议.

Or if there is any better way to achieve this, I am open to suggestions.

推荐答案

这将打印计数:

{{ question.answers|length }}

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