LIFERAY: Get localized custom field value on widget template

getLocalizedCustomFieldValue.ftl

<#function getLocalizedCustomFieldValue navItem customFieldName>
	<#assign customField = navItem.getLayout().getExpandoBridge().getAttribute(customFieldName)>
	<#if customField??>
		<#list customField?keys as key>
			<#if key == locale>
				<#return customField?values[key_index]!"" />
			</#if>
		</#list>
	<#else>
		<#return "" />
	</#if>
</#function>