Django AJAX forms. Uses a bunch of requirements installed in https://github.com/adamghill/django-template.

views.js

(function() {
	$('a.button').click(function(e) {
		var $form = $("#form");
		$('#error').hide();
		$('input').removeClass('error');

		var handleError = function() {
			$('#error').show();
		}

		var postData = $form.serialize();

		$.post("/", postData, function(data) {
			if (data.errors) {
        		$('#error').show();
    
                for (error in data.errors) {
                    $('input[name="' + error + '"]').addClass('error');
                    console.log('Error on field with name: ', error);
                }
    
                handleError();
			} else {
			    // console.log('success', data);
			}
		}).error(function() {
			handleError();
		});
	});
})();

views.py

from django.shortcuts import render_to_response
from django.template import RequestContext
from django.views.decorators.csrf import csrf_protect
from .forms import ModelForm
from .models import Model
from django_utils.http_response import JsonHttpResponse
from first import first
import simplejson as json
import uuid


@csrf_protect
def index(request):
    form = None

    if request.method == 'POST':
        model_uuid = request.POST.get('uuid')
        model = first(model.objects.filter(uuid=model_uuid))

        if not model:
            model = Model(uuid=model_uuid)

        form = ModelForm(request.POST, instance=model)

        if form.is_valid():
            model = form.save()

            data = json.dumps({
                'uuid': str(model.uuid)
            })
        else:
            # Since form.errors is a proxy need to create a dict from it with unicode
            data = json.dumps({'errors': dict([(k, [unicode(e) for e in v]) for k,v in form.errors.items()])})

        if request.is_ajax():
            return JsonHttpResponse(data)
    else:
        form = ModelForm()
        model_uuid = str(uuid.uuid4()).replace('-', '')

    return render_to_response('www/index.html', {
        'form': form,
        'model_uuid': str(model_uuid),
        }, context_instance=RequestContext(request)
    )