用树枝展示教义集？ (Symfony2)

发布于 2024-12-18 17:47:41 字数 846 浏览 0 评论 0原文

我有一个非常简单的代表新闻的学说实体；这个新闻可以与很多图片联系起来，所以我决定使用教义集。问题是，我想检索这些图片并将它们显示在我的模板中......但它似乎不起作用。你知道我该怎么做吗？

这是我尝试过的：

{% for annonce in annonces %}
    <div class="annonce_item">
    {% for photo in annonce.photo  %}
        <img src="{{ photo.path }}" alt="" />
    {% endfor %}
</div>
<!-- End .annonce_item -->
{% endfor %}

annonce 是新闻类，photo 是集合：

/**
 * @ORM\OneToMany(targetEntity="Photo", mappedBy="id",cascade={"persist"})
 */

private $photo;

当我尝试在浏览器中显示此页面时，出现以下异常：

渲染模板期间抛出异常（“注意：未定义索引：>id in >/Applications/MAMP/htdocs/ApacheImmobilier/vendor/doctrine/lib/Doctrine/ORM/Persisters/Basi>” cEntityPersister.php 第 1274 行”）位于“APPagesBundle:Index:index.html.twig”第 45 行。

谢谢！

原文

I have a quite simple doctrine entity that represent a news ; this news can be linked with many pictures, so I decided to use a Doctrine Collection. The thing is, I want to retrieve this pictures and display them in my template... But it didn't seem to work. Do you know how I can do that ?

Here is what I tried :

{% for annonce in annonces %}
    <div class="annonce_item">
    {% for photo in annonce.photo  %}
        <img src="{{ photo.path }}" alt="" />
    {% endfor %}
</div>
<!-- End .annonce_item -->
{% endfor %}

annonce is the news class, and photo is the collection :

/**
 * @ORM\OneToMany(targetEntity="Photo", mappedBy="id",cascade={"persist"})
 */

private $photo;

When I try to display this page in my browser, I get this exception:

An exception has been thrown during the rendering of a template ("Notice: Undefined index: >id in >/Applications/MAMP/htdocs/ApacheImmobilier/vendor/doctrine/lib/Doctrine/ORM/Persisters/Basi>cEntityPersister.php line 1274") in "APPagesBundle:Index:index.html.twig" at line 45.

Thanks!

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