我正在使用Liferay 7.0 ga3,并且想要使用web内容的结构/模板(freemarker)制作轮播(bootstarp)。 该结构允许在我的传送带中显示多个Web内容。但在我的模板cur_WebContent.getData()显示的className和的WebContent的ID: “remove_ending”将Web内容显示到Web内容模板中
{"className":"com.liferay.journal.model.JournalArticle","classPK":"42553"}
于是我就用 “?keep_after”,并获得只有我的ID:
<#assign journalArticleLocalService = serviceLocator.findService("com.liferay.journal.service.JournalArticleLocalService")>
<#assign web_content_id= cur_WebContent.getData()?keep_after("classPK\":\"")?remove_ending("\"}") >
<#assign cur_articleID = journalArticleLocalService.fetchArticle(groupId, web_content_id)>
${journalArticleLocalService.getArticleContent(cur_articleID, cur_articleID.getDDMTemplateKey(), "VIEW", locale, themeDisplay)}
我可以显示在我的旋转木马一样$ {} web_content_id此信息,但如果我在fetchArticle使用这个(的groupId,条款ArticleID),这是行不通的:
FreeMarker template error:
The following has evaluated to null or missing:
==> journalArticleLocalService.fetchArticle(groupId, web_content_id) [in template "20116#20160#47034" at line 7, column 30]
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Tip: If the failing expression is known to be legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing</#if>. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)??
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FTL stack trace ("~" means nesting-related):
- Failed at: #assign cur_articleID = journalArticl... [in template "20116#20160#47034" at line 7, column 5]
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有什么想法? 感谢
classPK是不同的ID的web内容的... –