如何在 Java 中为 Liferay Web 内容设置类别？

Question

In Liferay 7, I have a Web Content, a vocabulary and a category.
How to set the category to the Web Content?

I wrote this code:

article = JournalArticleLocalServiceUtil.addArticle(...);
category = AssetCategoryLocalServiceUtil.addCategory(...);

AssetCategoryLocalServiceUtil.setAssetEntryAssetCategories(
    article.getPrimaryKey(), new long[]{category.getPrimaryKey()});

At execution no error, but the category does not show up on the edit page of the created Web Content:

The category has been created successfully, but the Web Content does not get that category assigned.

What am I doing wrong?

I have also tried addAssetEntryAssetCategories , addAssetEntryAssetCategory , addAssetCategoryAssetEntry : same problem.

Answer 1

Try using any of these 2 functions to add category:

addAssetEntryAssetCategory(long entryId, long categoryId);
addAssetEntryAssetCategories(long entryId, long[] categoryIds);

In your code, you are using primary_key, however, as per documentation you should be using entry id and category id. So your function call should look like this:

AssetEntry entry = AssetEntryLocalServiceUtil.fetchEntry(JournalArticle.class.getName(),  article.getResourcePrimKey());

AssetCategoryLocalServiceUtil.addAssetEntryAssetCategory(
    entry.getEntryId(), category.getCategoryId());

Since 7.0, they removed the getEntryId method from JournalArticle you would need an additional call to fetch it. There is a update method which you may also consider that would do this in single call. I'm still using 6.2 and catching up 7 :).

Please note categories are designed for use by administrators, not regular users.

Answer 2

I am using liferay 7.1 dxp

In my case I have to update category of journal article or web content using program. In order to achieve this I have to use assetEntryAssetCategoryRel class. to access this and related class first I added dependency to my build.gradle file

compileOnly group: "com.liferay", name: "com.liferay.asset.entry.rel.api", version: "1.1.0"

List<AssetEntryAssetCategoryRel> assetEntryAssetCategoryRelsByAssetEntryId = AssetEntryAssetCategoryRelLocalServiceUtil.
                    getAssetEntryAssetCategoryRelsByAssetEntryId(assetEntry.getEntryId());
if(assetEntryAssetCategoryRelsByAssetEntryId!=null && !assetEntryAssetCategoryRelsByAssetEntryId.isEmpty()){
                    AssetEntryAssetCategoryRel assetEntryAssetCategoryRel = assetEntryAssetCategoryRelsByAssetEntryId.get(0);
                    assetEntryAssetCategoryRel.setAssetCategoryId(assetCategory.getCategoryId());
                    assetEntryAssetCategoryRel = AssetEntryAssetCategoryRelLocalServiceUtil.updateAssetEntryAssetCategoryRel(assetEntryAssetCategoryRel);
                    
                }

I had assetentry and assetcategory object This works fine for me