dz.py

from django.http import HttpResponse, HttpResponseBadRequest
from django.shortcuts import render_to_response, get_object_or_404
from django.views.decorators.csrf import csrf_exempt
from django.forms.models import inlineformset_factory
from django.db.models import Min
from django.utils import simplejson

from annoying.decorators import render_to
from paypal import interface
from models import Category, Organiser, Event, Buyer, Guest
from forms import BuyerForm

@render_to('index.html')
def index(request):

    return {
            'categories': Category.objects.all(),
            'organisers': Organiser.objects.all(),
            'events': Event.objects.all(),
            }

@render_to('event.html')
def event(request, event_id):
    event = get_object_or_404(Event, pk=event_id)
    min_price = event.ticket_set.all().aggregate(Min('price'))['price__min']
    if event.location_set.count() > 1:
        has_multiple_locations = True
    else:
        has_multiple_locations = False

    return {
            'event': event,
            'min_price': min_price,
            'has_multiple_locations': has_multiple_locations
    }

@render_to('book.html')
@csrf_exempt
def book(request):
    if request.POST:
        event = Event.objects.get(pk=request.POST['event_id'])
        #ticket_rows = []

        guest_formsets = []
        i = 0
        for ticket in event.ticket_set.all():
            qty = int( request.POST['qty-%s' % ticket.id] )
            formset = inlineformset_factory(
                    Buyer, 
                    Guest, 
                    fields=('name',), 
                    extra=qty, 
            )
                    
            guest_formsets.append(
                    formset(initial=[{ 'event': event, 'ticket': ticket}], 
                            prefix='%s' % i)
            )

        
        return { 
            'buyer_form': BuyerForm(),
            'guest_formsets': guest_formsets,
            'num_of_guest_formsets': len(guest_formsets),

            'organiser_name': event.organiser.name,
            'event_name': event.name,
            #TODO: Calculate total price for bottom of booking form

        }

    else:
        return HttpResponse(status=400)

#TODO: Enable CSRF
@csrf_exempt
def book_json(request):
    if request.method == 'POST':
        #setexp_response = interface.set_express_checkout(amt='10.00', 
        #returnurl=self.returnurl, cancelurl=self.cancelurl, 
        #paymentaction='Order', 
        #email=api_details.EMAIL_PERSONAL)

        buyer_form = BuyerForm(request.POST)
        buyer = buyer_form.save()
        #TODO: Make this actually save, maybe this issue: https://docs.djangoproject.com/en/dev/topics/forms/formsets/#using-more-than-one-formset-in-a-view
        GuestFormset = inlineformset_factory(Buyer, Guest)
        for i in xrange(0, int( request.POST['num_of_guest_formsets'] )):
            guest_forms = GuestFormset(request.POST, prefix='%s' % i)
            guest_forms.save()

        data = simplejson.dumps({'we-are': 'good!'})
        return HttpResponse(data, mimetype='application/json')
    else: 
        return HttpResponseNotFound('Must post booking info')