Detalle Contenido

Se ha producido un error al procesar la plantilla. 
The following has evaluated to null or missing:
==> cur_img_grid.getAttribute("alt")  [in template "20095#20123#36528" at line 41, column 145]

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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: ${cur_img_grid.getAttribute("alt")}  [in template "20095#20123#36528" at line 41, column 143]
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1<#assign 
2   assetCategoryLocalService = serviceLocator.findService("com.liferay.asset.kernel.service.AssetCategoryLocalService") 
3JournalArticleLocalService = serviceLocator.findService("com.liferay.journal.service.JournalArticleLocalService") 
4assetEntryService=serviceLocator.findService("com.liferay.asset.kernel.service.AssetEntryLocalService") 
5> 
6 
7<#assign contentId = .vars['reserved-article-id'].data> 
8<#assign ja = JournalArticleLocalService.getLatestArticle(themeDisplay.getScopeGroupId(), contentId)> 
9<#assign entry =assetEntryService.getEntry("com.liferay.journal.model.JournalArticle",ja.resourcePrimKey)/> 
10 
11 
12<#assign categories=assetCategoryLocalService.getAssetEntryAssetCategories(entry.entryId) 
13> 
14 
15 
16<div class="info-head-wrapper"> 
17	<div class="info-text"> 
18		<p class="info-text__pretitle"> 
19		 <#if categories?? > 
20	        <#list categories as cat> 
21	         ${cat.getName()}    
22	        </#list> 
23	    </#if> 
24		</p> 
25		<h2 class="info-text__title">${title.getData()}</h2> 
26		<p class="info-text__description">${entradilla.getData()}</p> 
27	</div> 
28	<#if img.getData()?? && img.getData() != ""> 
29	<img alt="${img.getAttribute("alt")}" data-fileentryid="${img.getAttribute("fileEntryId")}" src="${img.getData()}" /> 
30</#if> 
31	<div class="info-text__content"> 
32		${Contenido.getData()} 
33	</div> 
34	<div class="avance_gallery"> 
35	<#if img_grid?? && img_grid.getSiblings()?has_content> 
36		<ul class="gallery gallery--map">	 
37			<#list img_grid.getSiblings() as cur_img_grid> 
38							<li class="gallery-card gallery-card--map col-md-4 col-lg-3"> 
39								<a href="${cur_img_grid.getData()}" rel="gallery-maps" class="swipebox" data-selector="swipebox" title="${title.getData()}"> 
40								<div class="gallery-card-img"> 
41									<img class="gallery-card__image" src="${cur_img_grid.getData()}" alt="${cur_img_grid.getAttribute("alt")}"> 
42								</div> 
43								</a> 
44							</li> 
45			</#list> 
46		</ul> 
47    </#if> 
48	</div> 
49</div> 

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