anna-dan-wedding-site/bigday/views.py

from django.shortcuts import render, redirect
from django.urls import reverse

from .models import InvitedGuest

def index(request):
    return render(request, 'index.html')

def try_again(request):
    return render(request, 'index.html', {'invalid_code': True})

def rsvp(request):
    rsvpCode = request.GET['rsvp-code']
    guests = InvitedGuest.objects.filter(rsvpCode = rsvpCode)
    if request.method == 'GET':
        if not guests:
            # No guests with that code
            return redirect(reverse('try-again') + '#rsvp')
        return render (request, 'rsvp.html', {'guests':guests, 'rsvpCode': rsvpCode})
    elif request.method == 'POST':
        any_attending = False
        for guest in guests:
            attending = request.POST['attending_%d' % guest.id] == 'attending'
            guest.attending = attending
            any_attending = any_attending or attending
            guest.save()
        if any_attending:
            return redirect('thanks')
        else:
            return redirect('sorry')

def thanks(request):
    return render(request, 'thank-you.html', {'attending': True})

def sorry(request):
    return render(request, 'thank-you.html', {'attending': False})