排序列时的SearchContainer未知属性

Question

我有一个portlet sampleimportlog_WAR_Testportlet的view.jsp，其中在数据库查询的searchContainer中显示实体SampleImportLog。我得到了结果

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这是searchContainer in view.jsp

<liferay-ui:search-container emptyResultsMessage="sampleImportLog-empty-results-message"  orderByType="<%= orderByType %>">
        <%

        List<SampleImportLog> allSampleImportLogs = SampleImportLogLocalServiceUtil.getSampleImportLogs(QueryUtil.ALL_POS, QueryUtil.ALL_POS);
        List<SampleImportLog> sampleImportLogsPerPage = ListUtil.subList(allSampleImportLogs, searchContainer.getStart(),searchContainer.getEnd());
        List<SampleImportLog> sortableSampleImportLogs = new ArrayList<SampleImportLog>(sampleImportLogsPerPage);
        if(Validator.isNotNull(orderByCol)){
            //Pass the column name to BeanComparator to get comparator object
            BeanComparator comparator = new BeanComparator(orderByCol);
            if(orderByType.equalsIgnoreCase("asc")){
                //It will sort in ascending order
                Collections.sort(sortableSampleImportLogs, comparator);
            }else{
                //It will sort in descending order
                //Collections.reverse(sortableSampleImportLogs);
                Collections.sort(sortableSampleImportLogs, Collections.reverseOrder(comparator));
            }

        }
        searchContainer.setResults(sortableSampleImportLogs);
        searchContainer.setTotal(SampleImportLogLocalServiceUtil.getSampleImportLogsCount());

        %>

            <liferay-ui:search-container-row
                className="com.test.portlet.xxx.model.SampleImportLog"
                keyProperty="importId"
                modelVar="sampleImportLog" escapedModel="<%= true %>"
            >


                <portlet:renderURL var="viewSampleImportDetailsURL">
                    <portlet:param name="mvcPath" value="/html/sample/sampleimportlog/view_details.jsp" />
                    <portlet:param name="uuid" value="<%= sampleImportLog.getUuid() %>" />
                </portlet:renderURL>

                <portlet:actionURL name="deleteSampleImport" var="deleteSampleImportURL">
                    <portlet:param name="importId" value="<%= String.valueOf(sampleImportLog.getImportId()) %>" />
                    <portlet:param name="uuid" value="<%= String.valueOf(sampleImportLog.getUuid()) %>" />
                </portlet:actionURL>

                <liferay-ui:search-container-column-text
                    name="uuid"
                    property="uuid" 
                    orderable="true"
                    orderableProperty="uuid"
                    href="<%= viewSampleImportDetailsURL %>"
                />

                <liferay-ui:search-container-column-text
                    name="File Name"
                    property="fileName"
                    orderable="true"
                    orderableProperty="fileName"
                    href="<%= viewSampleImportDetailsURL %>"
                />

                <liferay-ui:search-container-column-text
                    name="Imported By"
                    property="fullNameImporter"
                    orderable="true"
                    orderableProperty="fullNameImporter"
                    href="<%= viewSampleImportDetailsURL %>"
                />

                <liferay-ui:search-container-column-text
                    name="Date Of Import"
                    property="dateOfImport"
                    orderable="true"
                    orderableProperty="dateOfImport"
                    href="<%= viewSampleImportDetailsURL %>"
                />

                <liferay-ui:search-container-column-text>
                    <liferay-ui:icon-delete url="<%= deleteSampleImportURL.toString() %>" 
                        message="<%= \"Delete this import\" %>" 
                        confirmation="<%= \"Are you sure you want to delete this import? \" +
                                \"This will delete the import log as well as all the samples imported in this batch from the file \" 
                                + sampleImportLog.getFileName()+\".\" %>"
                    />
                </liferay-ui:search-container-column-text>
            </liferay-ui:search-container-row>

        <liferay-ui:search-iterator />
    </liferay-ui:search-container>

当我点击行时，我得到了uuid (from the first column)。使用这个uuid，我查询另一个名为Sample的实体，并在另一个页面中显示详细信息，比如view_details.jsp。我可以在sample entities中的searchContainer中类似地列出view_details.jsp。在此之前一切都很顺利。

searchContainer in view_details.jsp如下所示

<liferay-ui:search-container emptyResultsMessage="sample-empty-results-message"  orderByType="<%= orderByType %>" >

<%

    List<Sample> samplesByuuid = SampleLocalServiceUtil.getSamplesByuuid(uuid);
    List<Sample> samplesByuuidPerPage = ListUtil.subList(samplesByuuid, searchContainer.getStart(),searchContainer.getEnd());
    List<Sample> sortableSamplesByuuid = new ArrayList<Sample>(samplesByuuidPerPage);
    if(Validator.isNotNull(orderByCol)){
        //Pass the column name to BeanComparator to get comparator object
        BeanComparator comparator = new BeanComparator(orderByCol);
        if(orderByType.equalsIgnoreCase("asc")){
            //It will sort in ascending order
            Collections.sort(sortableSamplesByuuid, comparator);
        }else{
            //It will sort in descending order
            Collections.sort(sortableSamplesByuuid, Collections.reverseOrder(comparator));
        }

    }
    searchContainer.setResults(sortableSamplesByuuid);
    searchContainer.setTotal(samplesByuuid.size());
%>
<liferay-ui:search-container-row
            className="com.test.portlet.xxx.model.Sample"
            keyProperty="sampleDbId"
            modelVar="sample" escapedModel="<%= true %>"
        >

<liferay-ui:search-container-column-text
                name="uuid_"
                property="uuid_"
                orderable="true"
                orderableProperty="uuid_"

            />

<liferay-ui:search-container-column-text
                name="container"
                property="container" 
                orderable="true"
                orderableProperty="container"
            />
...
...
</liferay-ui:search-container-row>

    <liferay-ui:search-iterator />
</liferay-ui:search-container>

现在，当我单击其中一个标头对来自不同实体的Unknown property 'xxx' on class com.test.portlet.model.impl.SampleImportLogImpl'.中的searchContainer中的结果进行排序时，就会得到错误的view_details.jsp。

我所理解的是，portlet绑定到一个实体SampleImportLog。我要按view_details.jsp中缺少的一些属性对结果进行排序。但是，该属性存在于实体Sample中，我在view_details.jsp中显示了该实体。

如何解决这个问题？是否需要为来自不同实体的详细信息创建单独的portlet？

Answer 1

我在SampleImportLog搜索容器中显示view.jsp实体。单击一行后，我将在Sample搜索容器中显示view_details.jsp实体。当我试图对搜索容器结果排序时，在com.test.portlet.model.impl.SampleImportLogImpl'.类上得到错误未知属性'xxx‘。

我发现我不需要为来自不同实体的细节创建单独的portlet。portlet不绑定到任何实体，我可以在portlet中显示任何实体。

该错误是由于未能在view_details.jsp中维护搜索容器的上下文造成的。因此，在搜索容器上执行的任何操作都会导致导航到portlet默认页面view.jsp。并且显示在view.jsp搜索容器中的实体没有我试图在view_details.jsp中对搜索容器排序的属性。

因此，为了在view_details.jsp中维护搜索容器的上下文，我定义了

<liferay-portlet:renderURL  varImpl="iteratorURL">
        <portlet:param name="mvcPath" value="/html/sample/sampleimportlog/view_details.jsp" />
        <portlet:param name="uuid" value="<%= uuid %>" />
</liferay-portlet:renderURL>

然后在searchContainer in view_details.jsp中，设置iteratorURL。

<liferay-ui:search-container emptyResultsMessage="sample-empty-results-message"  orderByType="<%= orderByType %>" iteratorURL="<%=iteratorURL %>">

而且效果很好。现在，我可以根据Sample实体在view_details.jsp中的不同属性对搜索容器结果进行排序。