Liferay portlet with freemarker and spring - liferay-6

Question

I am developing simple portlet for liferay portal(v6.2) using spring portlet mvc(v3.2.9) with FreeMarker template engine(v2.3.14).
I use portlet and aui taglibs to create pages
<#assign portlet=JspTaglibs["http://java.sun.com/portlet"]>
<#assign aui=JspTaglibs["http://liferay.com/tld/aui"]>
Those tags works in most cases but I have problem with following code
<#aui.form action="${editPreferencesUrl}">
<#aui.model-context bean="${myBean}" />
<#aui.input name="name" />
<#aui.input name="surname" />
</#aui.form>
I get following exception
javax.portlet.PortletException: org.springframework.web.util.NestedServletException: View rendering failed; nested exception is freemarker.core.NonNumericalException: Error on line 8, column 11 in preferences.ftl
Expression aui.model is not numerical
Expression context is not numerical
I was following this tutorial http://www.liferay.com/web/guest/community/wiki/-/wiki/Main/Alloy+UI+Forms+(aui)/pop_up?_36_version=1.9
The problem is #aui.model-context definitely. How to use this tag in free marker?

Answer 1

Like <#aui['model-context'] bean=...>. (Because, foo.bar is equivalent with foo['bar'], and the thing after # is just a generic FTL expression.)
BTW, are those "${expression}"-s necessary? Do you have to convert to string there? Because otherwise you should just write action=editPreferencesUrl and such.