Known problem for quite some
time...http://www.openlaszlo.org/jira/browse/LPP-354
Cary Clark wrote:
I have OL 4.0.12 as reported in the debugger window:
lzx> Debug.write(canvas.lpsversion)
4.0.12.0
I had an issue come up with dynamically adding UI elements via
replication to a form with the same name and the values not all
getting sent to the server (Java in my case). So I constructed a test
case. Here's a small app that creates an LzParam instance, adds
several parameters to it via the addValue() method, and submits it to
my test server code.
===================================================
<?xml version="1.0" standalone="no"?>
<!DOCTYPE canvas SYSTEM "http://www.laszlosystems.com/lps/tools/lzx.dtd";>
<canvas>
<include href="base/submit.lzx" />
<dataset name="submitDS" src="/common/jsp/echoToStdOut.jsp"
request="false" type="http"
timeout="120000" />
<vbox name="content" >
<hbox name="buttonsView" width="50" spacing="4">
<button name="submitButton" text="Submit Test" >
<handler name="onclick">
var ds = canvas.submitDS ;
var params = new LzParam() ;
params.addValue( "supervisorId", "1" ) ;
params.addValue( "supervisorId", "2" ) ;
params.addValue( "supervisorId", "3" ) ;
params.addValue( "supervisorId", "4" ) ;
ds.setQueryString( params );
Debug.write( "testSubmit.lzx::onclick:
queryString:" + params.toString() ) ;
ds.doRequest();
</handler>
</button>
</hbox> </vbox>
</canvas>
===================================================
The test jsp is a small hack of the "echo" JSP that someone @ Laszlo
Systems did some years back. Instead of returning the values as XML,
I write them to std out:
<?xml version="1.0"?>
<%@ page import="java.util.*" %>
<%@ page contentType="text/xml; charset=UTF-8" %>
<%
System.out.println( "echoToStdOut.jsp: Submitted Parameters" ) ;
Enumeration params = request.getParameterNames();
while(params.hasMoreElements()) {
String n = (String)params.nextElement();
String[] v = request.getParameterValues(n);
for(int i = 0; i < v.length; i++) {
String str = v[i];
// parse query args (URLENCODING) to Unicode as UTF8
byte p[] = str.getBytes("8859_1");
String ustr = new String(p, 0, p.length, "UTF-8");
System.out.print("name='" + n + "' <");
System.out.print(ustr);
System.out.println(">");
}
}
%>
===================================================
running the OL app with debug=true, I see this in the debug window
when the button is clicked:
testSubmit.lzx::onclick:
queryString:supervisorId=1&supervisorId=2&supervisorId=3&supervisorId=4
According to the OLdoc for LzParm->addValue(), this is correct - "Adds
a value. Does not replace existing entries with the same name."
The output from the JSP, unfortunately, tells a different story:
echoToStdOut.jsp: Submitted Parameters
name='supervisorId' <1>
This acted the same way under 4.0.11. Have I misinterpreted how this
should work or is this a bug?
Thanks,
Cary
