def AnnounceAdd(request):
    from formtools import CreateForm
    
    form, data = CreateForm(request.POST, None, Announce,
                "title", "description", "category_id",
                "expiredate")
    if form:
        return render_to_response("announce/new.html",
                    dict(form=form), RequestContext(request))

    announce = Announce(author=request.user, **data)
    announce.save()
    return HttpResponseRedirect("/announce/")