Question

我在组件对话框节点中创建了AEM Touch UI multifield。它有一个select的子字段。选择控件包含权限列表。这个想法是作者可以选择多个权限，并且用户必须至少具有其中一个权限才能查看该组件，或者如果没有为该组件指定权限，则所有用户都将看到它。下面是对话框选项卡的.content.xml文件（该选项卡通过granite/ui/components/foundation/include引用包含在内）。

我可以向多字段添加新权限，更改它们，并通过一个警告删除它们：我无法删除列表中的最后一个权限。出于某种原因，一旦我选择了某些东西，AEM就不允许我有一个空的多场。我已尝试将allowBlank设置为true，但我认为此属性不适用于Touch UI - 无论哪种方式，它都无法解决问题。

如何允许内容作者删除多字段中的所有项目？

<?xml version="1.0" encoding="UTF-8"?>
<jcr:root xmlns:sling="http://sling.apache.org/jcr/sling/1.0" xmlns:jcr="http://www.jcp.org/jcr/1.0" xmlns:nt="http://www.jcp.org/jcr/nt/1.0"
    jcr:primaryType="nt:unstructured"
    jcr:title="Portal Filters"
    sling:resourceType="granite/ui/components/foundation/container">
    <items jcr:primaryType="nt:unstructured">
        <permissions
            jcr:primaryType="nt:unstructured"
            sling:resourceType="granite/ui/components/foundation/form/multifield"
            fieldDescription="A user must have at least one of these permissions to view this component"
            fieldLabel="Permissions">
            <field
                jcr:primaryType="nt:unstructured"
                sling:resourceType="granite/ui/components/foundation/form/select"
                name="./permissions">
                <datasource
                    jcr:primaryType="nt:unstructured"
                    sling:resourceType="/apps/mportal/datasources/permissions"/>
            </field>
        </permissions>
        <missions
            jcr:primaryType="nt:unstructured"
            sling:resourceType="granite/ui/components/foundation/form/multifield"
            fieldDescription="A user must have at least one of these missions to view this component"
            fieldLabel="Missions">
            <field
                jcr:primaryType="nt:unstructured"
                sling:resourceType="granite/ui/components/foundation/form/select"
                name="./missions">
                <datasource
                    jcr:primaryType="nt:unstructured"
                    sling:resourceType="/apps/mportal/datasources/missions"/>
            </field>
        </missions>
        <mtcs
            jcr:primaryType="nt:unstructured"
            sling:resourceType="granite/ui/components/foundation/form/multifield"
            fieldDescription="A user must have at least one of these mtcs to view this component"
            fieldLabel="MTCs">
            <field
                jcr:primaryType="nt:unstructured"
                sling:resourceType="granite/ui/components/foundation/form/select"
                name="./mtcs">
                <datasource
                    jcr:primaryType="nt:unstructured"
                    sling:resourceType="/apps/mportal/datasources/mtcs"/>
            </field>
        </mtcs>
        <languages
            jcr:primaryType="nt:unstructured"
            sling:resourceType="granite/ui/components/foundation/form/multifield"
            fieldDescription="A user must have at least one of these languages to view this component"
            fieldLabel="Languages">
            <field
                jcr:primaryType="nt:unstructured"
                sling:resourceType="granite/ui/components/foundation/form/select"
                name="./languages">
                <datasource
                    jcr:primaryType="nt:unstructured"
                    sling:resourceType="/apps/mportal/datasources/languages"/>
            </field>
        </languages>
        <startdate
            jcr:primaryType="nt:unstructured"
            sling:resourceType="granite/ui/components/foundation/form/datepicker"
            fieldLabel="Start Date"
            name="./startdate"/>
        <enddate
            jcr:primaryType="nt:unstructured"
            sling:resourceType="granite/ui/components/foundation/form/datepicker"
            fieldLabel="End Date"
            name="./enddate"/>
    </items>
</jcr:root>

Answer 1

事实证明，AEM Touch UI多字段组件更新值的方式存在问题。如果删除最后一项，则组件不会向服务器发送任何值（非常类似于未选中的复选框）。如果没有项目，您必须明确告诉AEM您要删除多字段的值。方法如下：

与多字段节点处于同一级别，创建一个新节点（NT：非结构化）;我称之为permissions-delete（对应我的多字段名为permissions）
添加以下属性：
1. sling:resourceType，String，granite/ui/components/foundation/form/hidden
2. name，String，./permissions@Delete（其中./permissions是permissions/field节点名称字段的值）
3. value，Boolean，true

现在当你删除最后一项时，隐藏字段的值将确保它被删除而不是被忽略。

在AEM Touch UI多字段中允许空白值（选择字段）

1 个答案: