logic:match , logic:notEqual not working

[James Workmen]

I am iterating an list object and within the iterate tag I have to check
for some value againt the value in the list and print. But it is not allowing to use any other logic tag inside 'logic:iterate' tag.
I tried, logic:match, logic:equal, logic:notEqual. Everytime
it is trowing the following error:
org.apache.jasper.JasperException: /mySearch.jsp(71,56) equal symbol expected.

Here's the code:

<logic:iterate id="codebean" name="STATUS">
   <logic:equal name="<bean:write name="PROJECT" property="statusCode"/>" value="<bean:write name="codebean" property="id"/>"> 
    <option value="<bean:write name="codebean" property="id"/>"> <bean:write name="codebean" property="description"/></option>
  </logic:equal> 
</logic:iterate>

I even tried jsp:getProperty tag

<logic:iterate id="codebean" name="STATUS">
 <logic:match name='<jsp:getProperty name="PROJECT" property="statusCode"/>' value='<jsp:getProperty name="codebean" property="id"/>'> 
ID="<bean:write name="codebean" property="id"/>">   Description=<bean:write name="codebean" property="description"/><br>
 </logic:match>
</logic:iterate> 

Help!!

[Junilu Lacar]

You can't nest tags this way:

<logic:equal name="<bean:write name="PROJECT" property="statusCode"/>" value="<bean:write name="codebean" property="id"/>">

Use a JSP runtime expression instead. You might also want to try using JSTL instead of the logic tags. They're much easier to learn, write, and read, IMO.

  <c:forEach var="codebean" items="STATUS">
     <c:if test="${PROJECT.statusCode eq codebean.id}">
         <option ... 
     </c:if>
  </c:forEach>

Third, IMO, filtering the items in the collection at the JSP level is a poor design choice. You should filter the collection items in the Java code before displaying the JSP. That way, you won't have to put all that iteration/test logic in your JSP.

Lastly, if you're going to filter the items in the collection, then why present it as an option? A select list with just one option doesn't make sense to me.

[James Workmen]

Thanks for the reply.

Actually, I am populating an option list using an iterate tag.
When the project is new I have to display an empty JSP page for the user to fill in the page and submit the data.
But when the user selets the already existing project, I am displaying all the details pertaing to that project.
For both I am displaying the same JSP.

When the user selects an existing project, I actually I wanted to display an option list with an selected list item, like this,

<logic:iterate id="codebean" name="STATUS">
   <logic:equal name="<bean:write name="PROJECT" property="statusCode"/>" value="<bean:write name="codebean" property="id"/>"> 
    <option value="<bean:write name="codebean" property="id"/>" 
[B]selected[/B]> <bean:write name="codebean" property="description"/></option>
  </logic:equal> 
<logic:notEqual name="<bean:write name="PROJECT" property="statusCode"/>" value="<bean:write name="codebean" property="id"/>"> 
    <option value="<bean:write name="codebean" property="id"/>"> <bean:write name="codebean" property="description"/></option>
  </logic:notEqual> 
</logic:iterate>

Thanks

[Junilu Lacar]

Then just use the htmlptionsCollection or htmlptions tag. This will eliminate the need to do all that stuff with logic:equal, etc.
[ November 29, 2004: Message edited by: Junilu Lacar ]

[James Workmen]

Oh really, can you please give an example on how to use these tags...
html ptionsCollection or html ptions

[Junilu Lacar]

see http://www.reumann.net/struts/lesson2/step14.do

[saivenu madhav]

Hi friends i am using the same thing ,

see my below code

 <logic:notEmpty name="RequestForm" property="changeLogSummaryList">
<logic:iterate id="row" name="RequestForm" property="changeLogSummaryList">
<logic:notEqual name="row" property="newReqAmount" value='<bean:write name="row" property="oldReqAmount"/>'>
   

instead of the above code i am going for c:foreach

please look at the below code

  <c:forEach var="row" items="${RequestForm.changeLogSummaryList}">   
   <c:if test="${row.newReqAmounteq row.oldReqAmount}">  

But it is throwing Error
This attribute does not support request time values.

Could any one suggest me how can i using form attribute values in c:forEach

Or is there any other way to get same thing in struts without using scriptlets


ThanksInAdvance
Madhav