Find Liferay Journal Atticles By Type and Tag Name

Find Liferay Latest Journal Atticles By Type with Dynamic Query

Here I am sharing with you some knowledge about liferay dynamic query to get journal articles by type.
Actually to get journalArticles list by its type, I was not able to find any service call in liferay, so I have to customized it.

First of all, In Liferay portal.properties which contains Types of Web content. You can override below property and add more customize types from here...

    #
    # Set the list of article types. The display text of each of the article
    # types is set in content/Language.properties.
    #
    journal.article.types=announcements,blogs,general,news,press-release,test

Here I am adding method to get latest articles by its type.

private List<JournalArticle> getArticleByType(long scopeGroupId,
String value) throws PortalException, SystemException {

//maxVersionArticle : Query will find the article with its latest version

DynamicQuery maxVersionArticle = DynamicQueryFactoryUtil.forClass(
JournalArticle.class, "maxVersionArticle",
PortalClassLoaderUtil.getClassLoader()).add(
PropertyFactoryUtil.forName("articleId").eqProperty(
"articleByType.articleId")).setProjection(
ProjectionFactoryUtil.max("id"));

//articleByType : Query will find the articles by its type and appended the maxVersionArticle query so it will track only latest versions

DynamicQuery articleByType = DynamicQueryFactoryUtil.forClass(
JournalArticle.class, "articleByType",
PortalClassLoaderUtil.getClassLoader()).add(
PropertyFactoryUtil.forName("id").eq(maxVersionArticle)).add(
PropertyFactoryUtil.forName("groupId").eq(scopeGroupId)).add(
PropertyFactoryUtil.forName("type").eq(value)).addOrder(
OrderFactoryUtil.desc("createDate"));

articleByType.setLimit(0, 5);

LOG.info("Query -- "+articleByType.toString());

List<JournalArticle> ja = (List<JournalArticle>) JournalArticleLocalServiceUtil.dynamicQuery(articleByType);
return ja;

}

Find Liferay Latest Journal Atticles By Tag Name

Here I am adding one more function to get the journal article by tagname

public List<JournalArticle> getArticleByTags(long groupId, String tagName)
throws PortalException, SystemException {
AssetEntryQuery assetEntryQuery = new AssetEntryQuery();
long[] anyTagIds = AssetTagLocalServiceUtil.getTagIds(groupId,
new String[] { "alllocation", tagName });
assetEntryQuery.setAnyTagIds(anyTagIds);
List<AssetEntry> assetEntryList = AssetEntryLocalServiceUtil
.getEntries(assetEntryQuery);
List<JournalArticle> journalArticleList = new ArrayList<JournalArticle>();
for (AssetEntry ae : assetEntryList) {
JournalArticleResource journalArticleResourceObj = JournalArticleResourceLocalServiceUtil
.getJournalArticleResource(ae.getClassPK());
JournalArticle journalArticleObj = JournalArticleLocalServiceUtil
.getArticle(groupId, journalArticleResourceObj
.getArticleId());
journalArticleList.add(journalArticleObj);
}
return journalArticleList;

}

Hope this might save your development time!!