在Symfony2中对模板进行排序:使用Twig按属性对对象集合进行排序 [英] Sorting in the template, in Symfony2: using Twig to sort a collection of objects by property

问题描述

在Symfony2项目中，我有一个控制器，该控制器从数据库中检索许多事件.这些事件具有诸如start_time，stop_time，type等的属性.

In a Symfony2 project I have a controller that retrieves a number of incidents from the database. These incidents have properties like start_time, stop_time, type, etc.

在我看来，我想在一个表中显示这些事件，并按start_time排序.我用Twig做模板.

In my view, I want to show these incidents in a table, sorted by start_time. I use Twig for my templating.

我可以在将控制器传递到Twig模板之前对其进行预排序，但是恕我直言，控制器无需关心视图是否希望对其进行排序.例如，也许我创建的另一个模板希望按类型对它进行排序.

I can pre-sort in my controller before passing it to the Twig template, but imho the controller shouldn't care that the view wants it sorted. Maybe another template that I create will want it sorted by type, for example.

现在，有没有办法我可以将事件对象的集合原样提供给Twig模板，并当场对它进行排序? 也许带有'|排序"过滤器，然后加上"|" property(start_time)'过滤器放在它前面，如果您知道我的意思:-)

Now, is there a way that I can give the collection of incident-objects as-is to the Twig template, and have it sort it for me on the spot? Maybe with a '| sort' filter, but then with something like a '| property(start_time)' filter in front of it, if you know what I mean :-)

欢迎任何建议，谢谢！！

Any advice is welcome, thanks in advance!

Dieter

推荐答案

futurecat是完全正确的:没有现成的方法可以做到.即使他的回答已被接受，我还是为了完整性而添加:

futurecat is totally right: there's no way to do this out-of-the-box. Even if his answer has been accepted, I'm adding this for completeness:

您可以使用 snilius/twig-sort-by-field Twig扩展程序，它将提供您需要的过滤器.

You can use snilius/twig-sort-by-field Twig extension, which will provide the filter you need.

使用composer require snilius/twig-sort-by-field安装它，并享受其sortbyfield过滤器:

Install it using composer require snilius/twig-sort-by-field, and enjoy its sortbyfield filter:

{% for item in base | sortbyfield('name') %}
    {{ item.name }}
{% endfor %}

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