It's heavily based on [wiki:AJAXWidgetComboBox], but i've modified it to make it work with YUI autocomplete widget.

== Requirements ==

* [http://developer.yahoo.com/yui/] - used for AJAX and widget implementation. 
* simplejson

== Installation ==

* Install Yahoo! UI in media/js

== Example Use ==

I'll use the same models that in [wiki:AJAXWidgetComboBox], except that we use "query=" instead of "q=" in search, so you can refer it. The urls.py looks exactly tike this last, but in view.py we have this:

{{{
...
from django.utils import simplejson

...
def json_lookup(request, queryset, field, limit=5, login_required=False):
    if login_required and not request.user.is_authenticated():
        return redirect_to_login(request.path)
    obj_list = []
    lookup = { '%s__icontains' % field: request.GET['query'],}
    for obj in queryset.filter(**lookup)[:limit]:
        obj_list.append({"id": obj.id, "name": getattr(obj, field)}) 
    object = {"ResultSet": { "total": str(limit), "Result": obj_list } }
    return HttpResponse(simplejson.dumps(object), mimetype='application/javascript')
}}}

=== Template ===

In template we must put the javascript. I've done it in header section with a event to fire it. So you can put the following code in your content, or in your header if you fire it with an event:

{{{
<input id="field" type="text">
<div id="container"></div>

<!-- Dependencies -->
<script type="text/javascript" src="media/js/yahoo.js"></script>
<script type="text/javascript" src="media/js/dom.js"></script>
<script type="text/javascript" src="media/js/event.js"></script>
<script type="text/javascript" src="media/js/connection.js"></script>
<script type="text/javascript" src="media/js/animation.js"></script>
<script type="text/javascript" src="media/js/json.js"></script>
<script type="text/javascript" src="media/js/autocomplete.js"></script>

<script type="text/javascript">
    DataSource = new YAHOO.widget.DS_XHR("/myapp/reporter_lookup/", ["ResultSet.Result","name","id"]);
    AutoComp = new YAHOO.widget.AutoComplete("field","container",DataSource);
</script>
}}}

It's all!. You can customize [http://developer.yahoo.com/yui/docs/autocomplete/YAHOO.widget.AutoComplete.html AutoComp] and [http://developer.yahoo.com/yui/docs/autocomplete/YAHOO.widget.DataSource.html DataSource] all you need with [http://developer.yahoo.com/yui/docs/autocomplete/ extra params].