Handling Assets for the GuestbookEntry Service

Enabling Assets at the Service Layer

Step 3 of 3

Now you must update the guestbook entry entity’s service methods. In these methods, the calls you’ll make to assetEntryLocalService and assetLinkLocalService are identical to the ones you made in the guestbook entity’s service methods, except you’re specifying assets for GuestbookEntry entities.

1. Open GuestbookEntryLocalServiceImpl and add the asset calls to the addGuestbookEntry method after the resource calls:

   AssetEntry assetEntry = assetEntryLocalService.updateEntry(userId,
                     groupId, entry.getCreateDate(), entry.getModifiedDate(),
                     GuestbookEntry.class.getName(), entryId, entry.getUuid(), 0,
                     serviceContext.getAssetCategoryIds(),
                     serviceContext.getAssetTagNames(), true, true, null, null, null, null,
                     ContentTypes.TEXT_HTML, entry.getMessage(), null, null, null,
                     null, 0, 0, null);
   
   assetLinkLocalService.updateLinks(userId, assetEntry.getEntryId(),
                     serviceContext.getAssetLinkEntryIds(),
                     AssetLinkConstants.TYPE_RELATED);
   

2. Next, add the asset calls to the updateGuestbookEntry method after the resource calls:

   AssetEntry assetEntry = assetEntryLocalService.updateEntry(userId,
                 serviceContext.getScopeGroupId(),
                 entry.getCreateDate(), entry.getModifiedDate(),
                 GuestbookEntry.class.getName(), entryId, entry.getUuid(),
                 0, serviceContext.getAssetCategoryIds(),
                 serviceContext.getAssetTagNames(), true, true,
                 entry.getCreateDate(), null, null, null,
                 ContentTypes.TEXT_HTML, entry.getMessage(), null,
                 null, null, null, 0, 0,
                 serviceContext.getAssetPriority());
   
   assetLinkLocalService.updateLinks(userId, assetEntry.getEntryId(),
                 serviceContext.getAssetLinkEntryIds(),
                 AssetLinkConstants.TYPE_RELATED);
   

3. Add the asset calls to the deleteGuestbookEntry method after the resource calls:

   AssetEntry assetEntry = assetEntryLocalService.fetchEntry(
                         GuestbookEntry.class.getName(), entry.getEntryId());
   
   assetLinkLocalService.deleteLinks(assetEntry.getEntryId());
   
   assetEntryLocalService.deleteEntry(assetEntry);
   

4. Organize your imports, save the file, and run Service Builder.

5. Finally, add these language keys to the guestbook-web/src/main/resources/content/Language.properties file:

   model.resource.com.liferay.docs.guestbook.model.Guestbook=Guestbook
   model.resource.com.liferay.docs.guestbook.model.GuestbookEntry=Guestbook Entry
   

Excellent! You’ve asset-enabled your guestbook and guestbook entry entities at the service layer. Your next step is to implement asset renderers for these entities so they can be fully integrated into the asset framework. Every asset needs an asset renderer class so the Asset Publisher portlet can display it.

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