如何通过API获得Liferay动态数据列表的可重复字段值

Question

我试图为阅读Liferay6.2DDL提供一个服务。

以下是DDL结构：

<root available-locales="en_US" default-locale="en_US">
    <dynamic-element dataType="string" indexType="text" localizable="false" name="Course_ID" readOnly="false" repeatable="false" required="true" showLabel="true" type="text" width="medium">
        <dynamic-element dataType="boolean" indexType="keyword" localizable="true" name="Active" readOnly="false" repeatable="true" required="false" showLabel="true" type="checkbox" width="">
            <dynamic-element dataType="string" indexType="keyword" localizable="true" multiple="false" name="Language" readOnly="false" repeatable="false" required="false" showLabel="true" type="select" width="">
                <dynamic-element name="option22436" type="option" value="en">
                    <meta-data locale="en_US">
                        <entry name="label">
                            <![CDATA[English]]>
                        </entry>
                    </meta-data>
                </dynamic-element>
                <dynamic-element name="option22437" type="option" value="fr">
                    <meta-data locale="en_US">
                        <entry name="label">
                            <![CDATA[French]]>
                        </entry>
                    </meta-data>
                </dynamic-element>
                <dynamic-element name="option22438" type="option" value="de">
                    <meta-data locale="en_US">
                        <entry name="label">
                            <![CDATA[Deutsch]]>
                        </entry>
                    </meta-data>
                </dynamic-element>
                <meta-data locale="en_US">
                    <entry name="label">
                        <![CDATA[Language]]>
                    </entry>
                    <entry name="predefinedValue">
                        <![CDATA[[""]]]>
                    </entry>
                    <entry name="tip">
                        <![CDATA[]]>
                    </entry>
                </meta-data>
            </dynamic-element>
            <dynamic-element dataType="string" indexType="keyword" localizable="true" name="Guest_URL" readOnly="false" repeatable="false" required="false" showLabel="true" type="text" width="small">
                <meta-data locale="en_US">
                    <entry name="label">
                        <![CDATA[Guest URL]]>
                    </entry>
                    <entry name="predefinedValue">
                        <![CDATA[]]>
                    </entry>
                    <entry name="tip">
                        <![CDATA[]]>
                    </entry>
                </meta-data>
            </dynamic-element>
            <dynamic-element dataType="string" indexType="keyword" localizable="true" name="Registered_URL" readOnly="false" repeatable="false" required="false" showLabel="true" type="text" width="small">
                <meta-data locale="en_US">
                    <entry name="label">
                        <![CDATA[Registered URL]]>
                    </entry>
                    <entry name="predefinedValue">
                        <![CDATA[]]>
                    </entry>
                    <entry name="tip">
                        <![CDATA[]]>
                    </entry>
                </meta-data>
            </dynamic-element>
            <meta-data locale="en_US">
                <entry name="label">
                    <![CDATA[Active]]>
                </entry>
                <entry name="predefinedValue">
                    <![CDATA[true]]>
                </entry>
                <entry name="tip">
                    <![CDATA[]]>
                </entry>
            </meta-data>
        </dynamic-element>
        <dynamic-element dataType="document-library" fieldNamespace="ddm" indexType="keyword" localizable="true" name="Documents_and_Media8331" readOnly="false" repeatable="false" required="false" showLabel="true" type="ddm-documentlibrary" width="">
            <meta-data locale="en_US">
                <entry name="label">
                    <![CDATA[Documents and Media]]>
                </entry>
                <entry name="predefinedValue">
                    <![CDATA[]]>
                </entry>
                <entry name="tip">
                    <![CDATA[]]>
                </entry>
            </meta-data>
        </dynamic-element>
        <meta-data locale="en_US">
            <entry name="label">
                <![CDATA[Course ID]]>
            </entry>
            <entry name="predefinedValue">
                <![CDATA[]]>
            </entry>
            <entry name="tip">
                <![CDATA[]]>
            </entry>
        </meta-data>
    </dynamic-element>
</root>

如您所见，我有一个可重复的复选框容器，它在结构视图中还有3个元素

我可以获得和迭代记录列表，但是我不知道如何获得一个包含所有复选框的列表，并在其中迭代它们的元素。

DynamicQuery getRecordsetIdQuery = DDLRecordSetLocalServiceUtil.dynamicQuery()
            .setProjection(ProjectionFactoryUtil.distinct(ProjectionFactoryUtil.property("recordSetId")))
            .add(RestrictionsFactoryUtil.ilike("name", courseSetName));

    DynamicQuery getDdlRecordListQuery = DDLRecordLocalServiceUtil.dynamicQuery()
            .add(PropertyFactoryUtil.forName("recordSetId").in(getRecordsetIdQuery));

    JSONArray courseList = JSONFactoryUtil.createJSONArray();

    List ddlRecordList = DDLRecordLocalServiceUtil.dynamicQuery(getDdlRecordListQuery);
    if (ddlRecordList != null && ddlRecordList.size() > 0) {
        int ddlRecordListSize = ddlRecordList.size();
        for (int i = 0; i < ddlRecordListSize; i++) {
            DDLRecord ddlRec = (DDLRecord) ddlRecordList.get(i);
            Field active = ddlRec.getField("Active");

..。

你能帮我点主意吗？

Answer 1

我有三个领域。如何在portlet中获得重复字段的解决方案。

1.语言名(父域和重复域) 2. DocumentLinkLabel (重复域) 3. DocumentLink (子域)

for (JournalArticle journalArticle : journalArticleList) {
    Document docxml;
    try {
        docxml = SAXReaderUtil.read(journalArticle.getContent());
        Node root = docxml.getRootElement();
        List<Node> languageList = root.selectNodes("/root/dynamic- 
        element[@name='LanguageName']");    

        for (int i = 0; i < languageList.size(); i++)
        {
            Node languageNode = languageList.get(i);
            String languageName =languageNode.selectNodes("/root/dynamic- 
            element[@name='LanguageName']/dynamic-content[@language- 
            id='en_US']").get(i).getText();
            System.out.println("language Name : "+ languageName);

             List<Node> documentLinkLabelList =languageNode.selectNodes("dynamic-element[@name='DocumentLinkLabel']/dynamic-element[@name='DocumentLink']");
             for (int j = 0; j < documentLinkLabelList.size(); j++) {
                 Node languageNode1 = documentLinkLabelList.get(j);
                 String documentLinkName =languageNode.selectNodes("dynamic- 
                 element[@name='DocumentLinkLabel']/dynamic-content[@language-id='en_US']").get(j).getText();
                 System.out.println(" document Link Lable Name : "+ documentLinkName);
                 String linkNameList=languageNode1.selectNodes("//dynamic- 
                 element[@name='LanguageName']["+(i+1)+"]/dynamic- 
                 element[@name='DocumentLinkLabel']/dynamic-element[@name='DocumentLink']/dynamic-content[@language-id='en_US']").get(j).getText();
                 System.out.println(" linkNameList : "+ linkNameList);
             }
        }
    } catch (DocumentException e) {
        e.printStackTrace();
    }
}

Answer 2

不能在代码中显式访问DDList内容。您必须从数据库中获取记录的xml，并使用SAXParserUtil和XPath表达式读取这些值。