如何在django中注册后自动登录用户

这是我目前用于注册的：

def register(request):
    if request.method == 'POST':
        form = UserCreationForm(request.POST)
        if form.is_valid():
            new_user = form.save()
            messages.info(request, "Thanks for registering. Please login to continue.")
            return HttpResponseRedirect("/dashboard/")
    else:
        form = UserCreationForm()
    return render_to_response("accounts/register.html", {
        'form': form,
    }, context_instance=RequestContext(request))

是否可以在创建帐户后不要求用户手动登录，而是简单地自动登录？谢谢。

编辑：我尝试过login()函数但没有成功。我认为问题是未设置 AUTHENTICATION_BACKENDS。

使用authenticate() and login()功能：

from django.contrib.auth import authenticate, login

def register(request):
    if request.method == 'POST':
        form = UserCreationForm(request.POST)
        if form.is_valid():
            new_user = form.save()
            messages.info(request, "Thanks for registering. You are now logged in.")
            new_user = authenticate(username=form.cleaned_data['username'],
                                    password=form.cleaned_data['password1'],
                                    )
            login(request, new_user)
            return HttpResponseRedirect("/dashboard/")