Question

我正在使用Liferay 7.0 ga3，我想用Web内容的结构/模板（freemarker）制作旋转木马（bootstarp）。这些结构允许在我的轮播中显示多个Web内容。但是在我的模板中，cur_WebContent.getData（）显示了className和WebContent的ID：

{"className":"com.liferay.journal.model.JournalArticle","classPK":"42553"}

所以我使用“？keep_after”和“？remove_ending”来获取我的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)}

我可以在我的转盘中显示此信息，例如$ {web_content_id}，但如果我在我的fetchArticle（ groupId ， articleId ）中使用此信息，则它不起作用：

    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)??
----

----
FTL stack trace ("~" means nesting-related):
    - Failed at: #assign cur_articleID = journalArticl...  [in template "20116#20160#47034" at line 7, column 5]
----

有什么想法吗？感谢

Answer 1

我想web_content_id需要转换为数字

<#assign web_content_id = [...]?number />

Answer 2

这里classPK =＆＃34; 42553＆＃34;但classPK与ID的网络内容不同。

Astuce：ID = classPK -2＆lt; =＆gt; ID = 42553 - 2 = 42551

Answer 3

请确保您已在freeMarker设置（https://web.liferay.com/en/community/forums/-/message_boards/view_message/73386692#_19_message_74729187）中激活了serviceLocator变量的访问权限，而不是：

<#assign journalArticleLocalService = serviceLocator.findService("com.liferay.journal.service.JournalArticleLocalService")>

<#assign wcd_obj = webContent.getData() />
<#list wcd_obj?split(",") as x>
    <#if (x?last_index_of("classPK") != -1)>
        <#assign web_content_id = x?keep_after("classPK\":\"")?remove_ending("\"}")?remove_ending("\"") >
    </#if>
</#list>

<#if web_content_id??>
    <#assign real_web_content_id = web_content_id?number-2>
    <#assign cur_articleID = journalArticleLocalService.fetchArticle(groupId, real_web_content_id?string)>
    ${journalArticleLocalService.getArticleContent(cur_articleID, cur_articleID.getDDMTemplateKey(), "VIEW", locale, themeDisplay)}
</#if>

我使用GérômeHack，而不是简单的？keep_after？remove_ending，因为在实时/暂存配置中，变量是定义的反向风格[mind blasting]。

staging -> {"className":"com.liferay.journal.model.JournalArticle","classPK":"42553"}
live -> {"classPK":"42553", "className":"com.liferay.journal.model.JournalArticle"}

将Web内容显示到Web内容模板中

3 个答案: