Question

我创建了一个文档类型，并且我使用Asset Publisher来显示这类文档我想查看与自定义文档关联的值，这是我使用文档库创建的。用速度做这个的方法是什么？

我找到了这个java代码

long classPK = GetterUtil.getLong((String) workflowContext.get(WorkflowConstants.CONTEXT_ENTRY_CLASS_PK))

long fileEntryTypeId = DLFileVersionLocalServiceUtil.getFileVersion(classPK).getFileEntry().getFileEntryTypeId()                                                             
DLFileEntryType dlFileEntryType = DLFileEntryTypeLocalServiceUtil.getFileEntryType(fileEntryTypeId);

List<DDMStructure> ddmStructures = dlFileEntryType.getDDMStructures();

DDMStructure ddmStructure = ddmStructures.get(0);                                

DLFileEntryMetadata dlFileEntryMetadata = DLFileEntryMetadataLocalServiceUtil.getFileEntryMetadata(ddmStructure.etStructureId(), classPK);

Fields fields = StorageEngineUtil.getFields(dlFileEntryMetadata.getDDMStorageId());                                

String value = GetterUtil.getString(fields.get("radio6255").getValue());

我尝试以速度

进行此操作

#set($actualDoc = $curEntry.get(0))

#set($dlFileUtil =  $serviceLocator.findService("com.liferay.portlet.documentlibrary.service.DLFileEntryLocalService")) 

#set($metadata2 = $serviceLocator.findService("com.liferay.portlet.documentlibrary.service.DLFileEntryMetadataLocalService"))

#set($type = $serviceLocator.findService("com.liferay.portlet.documentlibrary.service.DLFileEntryTypeLocalService"))
#set($gid = $getterUtil.getLong($request.get("theme-display").get("scope-group-id"))) 

#set($fileEntry = $dlFileUtil.getFileEntryByUuidAndGroupId($actualDoc.classUuid, $actualDoc.groupId))

#set($fileEntryTypeId = $fileEntry.getFileEntryTypeId())

#set ($dlFileEntryType = $type.getFileEntryType($fileEntryTypeId)) 

#set ($ddmStructures = $dlFileEntryType.getDDMStructures())

#set ($ddmStructure = $ddmStructures.get(0))

#set($dlFileEntryMetadata = $metadata2.getFileEntryMetadata($ddmStructure.getStructureId(), $fileEntry.getLatestFileVersion(true).getFileVersionId()))

##set ($storageUtil = $portal.getClass().forName("com.liferay.portlet.dynamicdatamapping.storage.StorageEngineUtil").newInstance()) 
#set($storageUtil = $serviceLocator.findService("com.liferay.portlet.dynamicdatamapping.storage.StorageEngineUtil"))

#set($dDMStorageId = $dlFileEntryMetadata.getDDMStorageId())

#set($fields = $storageUtil.getFields($dDMStorageId))
<br> fields> $fields

但$storageUtil.getFields($dDMStorageId))为空

Answer 1

我建议你尝试一种避免使用StorageEngineUtil的不同方法。

我的模板是用Freemarker编写的，但我相信你可以快速将它翻译成Velocity语法。

第一个函数将DLFileEntry的实例作为参数并返回字段map：

<#function getDLFileEntryFieldsMap dlFileEntry>
    <#assign fileVersionId = dlFileEntry.getLatestFileVersion(true).getFileVersionId() />
    <#return dlFileEntry.getFieldsMap(fileVersionId) />
</#function>

返回的字段映射是Map<String, com.liferay.portlet.dynamicdatamapping.storage.Fields>的实例。

第二个函数在字段映射中搜索给定字段：

<#function getDLFileEntryFieldValue fieldsMap fieldName>
    <#list fieldsMap?keys as structureKey>
        <#list fieldsMap[structureKey].iterator() as field>
            <#if field.getName() = fieldName>
                <#return field.getValue()>
            </#if>
        </#list>
    </#list>
    <#return "">
</#function>

该函数遍历字段映射中的结构，并尝试查找包含给定字段的第一个结构。

Answer 2

我已经使用文档实现了portlet操作......也许部分源代码可以帮助您解决这个问题。

收集所有文件结构：

    public Set<DDMStructure> findStructureOfEntry(DLFileEntry entry) {

    LOGGER.log(Level.INFO, "Finding file entry structures.");
    Set<DDMStructure> dLMSDddmStructures = new HashSet<DDMStructure>();
    DLFileEntryType type = null;

    try {
        type = DLFileEntryTypeLocalServiceUtil.getFileEntryType(entry
                .getFileEntryTypeId());
    } catch (PortalException | SystemException e1) {
        LOGGER.log(Level.SEVERE,
                "Exception while getting DLFileEntry TYPE." + e1);
        e1.printStackTrace();
    }

    try {
        dLMSDddmStructures.addAll(type.getDDMStructures());
    } catch (SystemException e) {
        LOGGER.log(Level.SEVERE,
                "Exception while getting DLFileEntry structures." + e);
        e.printStackTrace();
    }
    LOGGER.log(Level.INFO, "Success.");
    return dLMSDddmStructures;

}

现在从结构中获取字段：

    Field field;
    DLFileEntryMetadata dlFileEntryMetadata = null;
    Fields fields = null;

        try {
            dlFileEntryMetadata = DLFileEntryMetadataLocalServiceUtil
                    .getFileEntryMetadata(structure.getStructureId(), entry
                            .getFileVersion().getFileVersionId());
        } catch (PortalException | SystemException e) {
            LOGGER.log(Level.SEVERE,
                    "Exception while getting DLFileEntry metadata sets."
                            + e);
            e.printStackTrace();
        }

        try {
            fields = StorageEngineUtil.getFields(dlFileEntryMetadata
                    .getDDMStorageId());
        } catch (StorageException e) {
            LOGGER.log(Level.SEVERE,
                    "Exception while getting fields of DLFileEntry DDMStructures."
                            + e);
            e.printStackTrace();
        }

然后你可以通过它的名字得到你想要的任何字段：

field = fields.get(name);

我认为你的getFileEntryMetadata方法中有错误的参数......那就是它为空的原因。

Answer 3

我可以使用此Freemarker模板获取自定义文档中自定义字段值的值：

<#assign fileEntry = dlFileEntryService.getDLFileEntryByUuidAndCompanyId(entry.getClassUuid() , entry.getCompanyId() ) />
<#assign fileEntryTypeId = fileEntry.getFileEntryTypeId() />

<#if fileEntryTypeId gt 0 >
    <#assign fileEntryType = dlFileEntryTypeService.getDLFileEntryType(fileEntryTypeId) />
    <#assign dlFileVersion = dlFileVersionService.getLatestFileVersion(fileEntry.getUserId(), fileEntry.getFileEntryId()) />
    <#assign fieldsMap = fileEntry.getFieldsMap(dlFileVersion.getFileVersionId()) />

    <#list fieldsMap?keys as structureKey>

        <#list fieldsMap[structureKey].iterator() as field>
            <#if field.getName() == 'nameOfYourCustomField'>
                <#assign nameOfYourCustomField = field.getValue() />
            </#if>
        </#list>

    </#list>
    <#-- Print the value of your custom field -->
    ${nameOfYourCustomField}
</#if>

如何在liferay 6.2中显示与自定义文档关联的值

3 个答案: