如何在Sightly中访问数据狡猾列表项的属性? [英] How do I access the properties of a data-sly-list item in Sightly?

问题描述

我将Sightly与Sling 8(不是AEM)配合使用.我有以下模板:

I am using Sightly with Sling 8 ( not AEM ). I have the following template:

<div data-sly-list.child="${resource.listChildren}">
    ${child.name}  |  ${child.path} | ${child.properties['jcr:title'] || 'no title'} 
</div>

(一个孩子)的输出是

hello_world | /content/blog/posts/hello_world | no title 

我知道子资源上有一个jcr:title属性，因为我已经通过HTTP调用确认了它.

I know there is a jcr:title property on the child resource as I have confirmed it using an HTTP call.

如何访问child对象上的属性?

How can I access the properties on the child object?

推荐答案

child是

The child is a Resource which does not have getProperties() but has getValueMap(), so you should use:

${child.valueMap.jcr:title || 'no title'}

注1:变量名称中允许使用冒号来支持典型的JCR名称，例如jcr:title.

Note 1: Colons are allowed in variable names to support typical JCR names like jcr:title.

注2:仅自Sling API 2.7.0捆绑包以来，getValueMap()才可用，以前只能使用resource.adaptTo(ValueMap.class)，而表达式语言显然不支持，因此需要以下解决方法:

Note 2: getValueMap() is only available since Sling API 2.7.0 bundle, previously only resource.adaptTo(ValueMap.class) was possible, which the expression language in sightly does not support, and this workaround was required: AEM 6.0 Sightly Child Nodes

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