getUserByScreenName in javascript gives a 'cannot call method 'stringily''

[Mirko Pelgrom, modifié il y a 10 années.]

Hi all,

I'm trying to create a simple functionality using the Web Content Display portlet and javascript as a test.

In de code part of the editor I paste:
<script src="/html/js/liferay/service.js" language="JavaScript"> </script>
<script>

var userScreenName = "m.pelgrom";
var companyId = themeDisplay.getCompanyId();
var userId = themeDisplay.getUserId();

document.write("<p>userScreenName: " + userScreenName + "</p>");
document.write("<p>companyId: " + companyId + "</p>");
document.write("<p>userId: " + userId + "</p>");

var userName = Liferay.Service.Portal.User.getUserByScreenName(companyId, userScreenName);
document.write("<p>userName: " + userName + "</p>");
</script>

The output is:

userScreenName: m.pelgrom
companyId: 10132
userId: 444173

When I look in development view in Chrome I see the message:

Uncaught TypeError: Cannot call method 'stringify' of undefined everything.jsp:3
Liferay.Service.getParameters everything.jsp:3
Liferay.Service.ajax everything.jsp:3
h everything.jsp:3
(anonymous function)

I'm a bit stuck here, is there anything else I need to include? Where can I find more information on using WCD & javascript.

LifeRay 6.0

NOTE: I am restricted to WCD & javascript, cannot use a java solution.