<g:if test="${session.role == 'admin'}">
<%-- show administrative functions --%>
</g:if>
<g:else>
<%-- show basic functions --%>
</g:else>
8.2.2.2 Logic and Iteration
Version: 3.2.3
8.2.2.2 Logic and Iteration
GSP also supports logical and iterative tags out of the box. For logic there are if, else and elseif tags for use with branching:
<g:each in="${[1,2,3]}" var="num">
<p>Number ${num}</p>
</g:each>
<g:set var="num" value="${1}" />
<g:while test="${num < 5 }">
<p>Number ${num++}</p>
</g:while>