s:if test do not seem to work with logic and
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Key: WW-2816
URL: https://issues.apache.org/struts/browse/WW-2816
Project: Struts 2
Issue Type: Bug
Components: Plugin - Tags, Value Stack
Affects Versions: 2.0.11.2
Environment: Windows XP, Websphere, JSP
Reporter: Philip Chan
Apache documentation show simple s:if test usage. e.g. s:if
test="%{mode=='AddEdit'}"
I try to use a little more complex test s:if test="%{mode=='AddEdit'} &&
%{id==null}" and it fail to evaluate properly.
EmployeeUsername is assigned when created. Once created it should not be
changed while other field like first name may be changed. There are 3 modes
(Add/Edit/ViewOnly)
Here is the sample code that somehow works. It allow data entry in
employeeUsername in Add/Edit mode. The problem is it allow data entry after
username is assigned.
<s:if test="%{mode=='AddEdit'}">
<td><s:textfield name="employeeUsername"/></td>
</s:if>
<s:else>
<td><s:textfield name="employeeUsername" readonly="true"/></td>
</s:else>
Here is code that try to fix the above problem but do not work (The textfield
is always readonly even when mode is 'AddEdit' and id is really null).
<s:if test="%{mode=='AddEdit'} && %{id==null}">
<td><s:textfield name="employeeUsername"/></td>
</s:if>
<s:else>
<td><s:textfield name="employeeUsername" readonly="true"/></td>
</s:else>
I got around the problem with 2 individual s:if test but that is a ugly
solution.
Is this a OGNL problem (OGNL document say and/or is allowed)?
Is this a struts s:if tag problem or simply s:if limitation? There is simply no
documentation that said s:if support this behavior or not.
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