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https://issues.apache.org/jira/browse/WW-4088?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13671280#comment-13671280
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Rene Gielen commented on WW-4088:
---------------------------------
Patches welcom :)
> Supressing empty parameters on <s:a> tag
> -----------------------------------------
>
> Key: WW-4088
> URL: https://issues.apache.org/jira/browse/WW-4088
> Project: Struts 2
> Issue Type: Improvement
> Components: Plugin - Java Templates, Plugin - Tags
> Affects Versions: 2.3.14.2
> Environment: Tomcat/Centos
> Reporter: Greg Huber
> Priority: Minor
> Fix For: 2.3.16
>
>
> Hello,
> When using the s:a anchor tag you can get parameters with empty values ie
> ?foo= for null values.
> It would be good if there was a way to filter these out, similar to the
> struts.xml <param name="suppressEmptyParameters">true</param>. The <s:if>
> tags in the body are ignored. I either have to do it in programatically or
> use jstl :(
> ie possibly do something similar :
> from:
> {code:xml}
> <s:a action="eventAdd" accesskey="a">
> <s:text name="title.heading.eventadd" />
> <c:if test="${not empty bean.searchString}">
> <s:param name="bean.searchString" value="%{bean.searchString}" />
> </c:if>
> <c:if test="${not empty bean.filter}">
> <s:param name="bean.filter" value="%{bean.filter}" />
> </c:if>
> <s:param name="bean.pageNum" value="%{pager.pageNumber}" />
> </s:a>
> {code}
> To:
> {code:xml}
> <s:a action="eventAdd" accesskey="a">
> <s:text name="title.heading.eventadd" />
> <s:param name="bean.searchString" value="%{bean.searchString}" />
> <s:param name="bean.filter" value="%{bean.filter}" />
> <s:param name="bean.pageNum" value="%{pager.pageNumber}" />
> <s:param name="suppressEmptyParameters" value="true"/>
> </s:a>
> {code}
> (Ref WW-3920)
> Cheers Greg
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