[RESOLVED] Accessing tags from velocity journal templates

[Patrik Bergström, modificado hace 15 años.]

Hi!

I'm wondering if there is any way to access the tags for an article through a velocity journal template? I want to list the tags for an article in the article.

The serviceLocator doesn't seem to be able to access classes like TagsAssetLocalServiceImpl or TagsEntryLocalServiceUtil. Which classes are available to the serviceLocator and which are not?

TIA

[Patrik Bergström, modificado hace 15 años.]

I managed to solve the issue myself. Here's my solution:

#set ($tagsService = $serviceLocator.findService("com.liferay.portlet.tags.service.TagsAssetLocalService"))
#set ($journalArticleResourceService = $serviceLocator.findService("com.liferay.portlet.journal.service.JournalArticleResourceLocalService"))

#set ($longGroupId = $getterUtil.getLong($groupId))
#set ($articleResourcePK = $journalArticleResourceService.getArticleResourcePrimKey($longGroupId, $reserved-article-id.data))
#set ($tagsAsset = $tagsService.getAsset("com.liferay.portlet.journal.model.JournalArticle", $articleResourcePK))
#set ($tagsEntries = $tagsAsset.getEntries())

Tags:
#foreach( $entry in $tagsEntries )
#set ($tag = $entry.getName())
#if($velocityCount!=1), #end
$tag#end

Edit: The compressed style in the last section is due to the problems with spaces when doing iterations for comma-separated lists like this.

[Artur Linhart, modificado hace 15 años.]

Hello,

this looks great... But in my case (Liferay 5.1.2), the variable $serviceLocator is null and returns nothing if used in article template... Is there any solution for this problem?

cheers, Archie

[Milan Jaroš, modificado hace 15 años.]

Hello,
as Ray told it can be dangerous to provide serviceLocator in some cases. I can tell you don't be afraid. You can get access to this services without "activating" serviceLocator. We were talking about this with Artur and we've got résumé that it is pretty dangerous to grant access for template modify to untrustworthy people.

The same example as is above but without serviceLocator:

#set ($tagsService = $portal.getClass().forName("com.liferay.portlet.tags.service.TagsAssetLocalServiceUtil").getMethod("getService", null).invoke(null, null))
#set ($journalArticleResourceService = $portal.getClass().forName("com.liferay.portlet.journal.service.JournalArticleResourceLocalServiceUtil").getMethod("getService", null).invoke(null, null))

I think this should be improved somehow. ;) Maybe with SecurityManager? Don't know.

[Sam Bergenstrahle, modificado hace 14 años.]

I just wanted to say Thank You!
Your sharing this info made my day. And how refreshing it is to see not only a good question, but also a very good answer in these forums!

Stay well my friends!