[displaytag-user] keeping a parameter between calls.

did Wed, 09 Jul 2003 10:20:49 -0700

Hi all,

Here is my problem: I want to implements a "Source" page that call a second "Search" Page. The "Search" page is a simple popup that allow the user to query a DB table with a filter.

When the user is satisfied with her filter, she click on one of the found elements, and its reference is copied onto the "Source" page. Of course I want to use a display tag to display the result list :-))))

The problem is that I need to keep the "destination" field between clients calls. But I didn't find how to update the display genereated URL.

indeed if I want to do someting like:

<bean:parameter id="dest" name="dest"/>
<display:table
     name="user_registry"
     tableId="account.book"
     property="searchAccounts"
     decorator="com.my.test.display.SearchJSWrapper"
     scope="session"
     pagesize="3"
     requestURI="searchAccount.do?dest=<%=dest%>">

Display library do not replace "dest" with its correct value. I had to do a very nasty Hacks just after ... something very funny to debug such as:

<%
     _jspx_th_display_table_0.setRequestURI(_jspx_th_display_table_0.getRequestURI() + 
dest);
%>


Does anybody has an idea to implements this without this ugly (not portable) code?
Is it possible? Is it a JSP/TagLib limitation? (I actually have the same problem with the 
<html:> tag)

Thanks for your help,
Didier

PS: Here is the complete code of my "Search" screen. (not cleaned up, sorry)


<%@ page language="java" %>
<%@ taglib uri="/WEB-INF/struts-bean.tld" prefix="bean" %>
<%@ taglib uri="/WEB-INF/struts-html.tld" prefix="html" %>
<%@ taglib uri="/WEB-INF/struts-logic.tld" prefix="logic" %>
<%@ taglib uri="/WEB-INF/struts-tiles.tld" prefix="tiles" %>
<%@ taglib uri="/WEB-INF/display.tld" prefix="display" %>

<!DOCTYPE HTML PUBLIC "-//w3c//dtd html 4.0 transitional//en">
<html>
<head>
<title>Search Account</title>
</head>
<body bgcolor="#FFFFFF">

<bean:parameter id="dest" name="dest"/>
<SCRIPT LANGUAGE="JavaScript">
<!--
function pick(symbol) {
  if (window.opener && !window.opener.closed) {
        opener.document.<%=dest%>.value = symbol ;
  }
  window.close();
}
// -->
</SCRIPT>

Search for an Account.

<!-- The code below do not work with the HTML display tag-->
<form name="search" action="<%=request.getContextPath()%>/searchAccount.do?dest=<%=dest%>" 
method="post">
<table border="0">
     <tr>
           <td nowrap>Company Name</td>
           <td nowrap>Code</td>
     </tr>
     <tr>
           <td nowrap><INPUT TYPE="text" NAME="name" SIZE="10"></td>
           <td nowrap><INPUT TYPE="text" NAME="code" SIZE="5"></td>
</table>
           <INPUT TYPE="submit" VALUE="[Search]" />
<form>

<display:table
     name="user_registry"
     tableId="account"
     property="searchAccounts"
     decorator="com.my.test.display.SearchJSWrapper"
     scope="session"
     pagesize="3"
     requestURI="searchAccount.do?dest="
     >

<% /* // This is avery AWFULL Hacks... But requestURI="searchAccount.do?dest=" // seems not to support %=dest% tags // Of course there is no warranty this code runs on something else than Tomcat.. */ _jspx_th_display_table_0.setRequestURI( _jspx_th_display_table_0.getRequestURI() + dest); %>

 <display:column property="JSLink" /> <!-- JSLink is a decorator that build the correct 
javascript:pick() code -->
 <display:column property="code" />

 <display:setProperty name="paging.banner.include_first_last" value="true"
/>
</display:table>

</body>
</html>


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