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From: "Greg Huber (JIRA)" <jira@apache.org>
To: issues@struts.apache.org
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Subject: [jira] [Updated] (WW-4088) Supressing empty parameters on <s:a> tag
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     [ https://issues.apache.org/jira/browse/WW-4088?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Greg Huber updated WW-4088:
---------------------------

    Attachment:     (was: patch.txt)
    
> 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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