Re: Don't understand NodeModel.get with XML

My problem is solved but I don't understand why.

I process in a macro some XML with some attributes (ex : <abc lien="
the-clown.com">)

First I've wrote (I simplify) :

<#macro abc>
<#if .node.@lien?has_content>
     <a href="empty?"><#recurse></a>
<#else>
    <a href="${urlInHTTP(.node.@lien)}"><#recurse></a>

... the choice was always "empty".

Now I write if_exists in place of has_content :

<#macro abc>
<#if .node.@lien[0]?if_exists == "true">
     <a href="empty?"><#recurse></a>
<#else>
    <a href="${urlInHTTP(.node.@lien)}"><#recurse></a>

... the choice is what I excpected ("the-clown.com").

Please can you explain ?

Thanks in advance.

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