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Ajax in Liferay 5

Form submission #

As of Liferay 5 , form submission is done using JQuery and the LiferayWindowState.EXCLUSIVE window state , that will return just the HTML snippet produced by the portlet.

The following code sample demonstrates the pattern of progressive enhancement where the form will submit without Javascript as well as with (To work with less capable devices .etc.

<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<%@ taglib uri="http://java.sun.com/portlet" prefix="portlet" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ page import="com.liferay.portal.kernel.portlet.LiferayWindowState" %>

<div id="<portlet:namespace />lgoUsers">
<script type="text/javascript">
jQuery(function($){

var <portlet:namespace/>form = $('#'+'<portlet:namespace />fm');

<portlet:namespace/>form.bind("submit",function(event){
	   event.preventDefault();
	   var inputs = $("input, textarea, select", <portlet:namespace/>form);
	   var url = '<portlet:actionURL windowState="<%= LiferayWindowState.EXCLUSIVE.toString() %>"/>' + "&" + inputs.serialize(); // see note below
	   $('#<portlet:namespace />lgoUsers').load(url);
});

});
</script>

<form
action="<portlet:actionURL/>"
method="post"
name="<portlet:namespace />fm"
id="<portlet:namespace />fm">

<input name="<portlet:namespace />sn" type="text" value="<c:out value="${sn}"/>" />
<input type="submit" name="<portlet:namespace />sm" value="Search" />
</form>
<ul>
<c:forEach items="${users}" var="user">
	<li><c:out value="${user}"/></li>
</c:forEach>
</ul>
</div>
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BUG: jQuery('#'+'<portlet:namespace />fm'); -... Fuad Efendi 15 novembre 2008 18.39
hi, i've got problem ajax in liferay... delang j 2 dicembre 2009 22.35
What if you have multiple Ajax calls on the... Michael Poznecki 4 gennaio 2010 12.08
FYI, I've posted a demonstration portlet using... Jeff Robinson 19 luglio 2009 5.38
is there anyway to implement something like... dennis monsewicz 4 agosto 2009 15.00
Great sample. A little step-by-step... Ilya V. Kalujny 14 settembre 2009 5.48
Last version of this wiki is unreadable.... Felix Ashirov 18 novembre 2011 4.57

BUG:
jQuery('#'+'<portlet:namespace />fm');
- called before form is defined in HTML... Quick fix: move javascript block after form definition.
Inviato il 15/11/08 18.39.
FYI, I've posted a demonstration portlet using code at the following link:

http://www.robisoft.com/downloads/hello-jquery-portlet/
Inviato il 19/07/09 5.38.
is there anyway to implement something like this in PHP?
Inviato il 04/08/09 15.00 in risposta a Jeff Robinson.
Great sample. A little step-by-step instructions wont hurt tho emoticon
Inviato il 14/09/09 5.48 in risposta a Jeff Robinson.
hi,
i've got problem ajax in liferay
http://www.liferay.com/web/guest/community/forums/-/message_boards/messag­e/4285302

breadcrumb and search form appear twice, any idea to solve this?
Inviato il 02/12/09 22.35 in risposta a Fuad Efendi.
What if you have multiple Ajax calls on the same page? How do you make the URL? Would you call multiple backend beans? Or, if you called the same backend bean, how would you handle the logic in the bean?
Inviato il 04/01/10 12.08 in risposta a delang j.
Last version of this wiki is unreadable. Version 1.3 looks fine.
Inviato il 18/11/11 4.57.