@python_2_unicode_compatible

class BadgeAndProfile(models.Model):

    ''' Information for an attendee's badge and related preferences '''

    def __str__(self):

        return "Badge for: %s of %s" % (self.name, self.company)

    @staticmethod

    def get_instance(attendee):

        ''' Returns either None, or the instance that belongs

        to this attendee. '''

        try:

            return BadgeAndProfile.objects.get(attendee=attendee)

        except ObjectDoesNotExist:

            return None

    attendee = models.OneToOneField(Attendee, on_delete=models.CASCADE)

    # Things that appear on badge

    name = models.CharField(

        verbose_name="Your name (for your conference nametag)",

        max_length=64,

        help_text="Your name, as you'd like it to appear on your badge. ",

    )

    company = models.CharField(

        max_length=64,

        help_text="The name of your company, as you'd like it on your badge",

        blank=True,

    )

    free_text_1 = models.CharField(

        max_length=64,

        verbose_name="Free text line 1",

from registrasion import forms

from registrasion import models as rego

from registrasion.controllers import discount

from registrasion.controllers.cart import CartController

from registrasion.controllers.invoice import InvoiceController

from registrasion.controllers.product import ProductController

from collections import namedtuple

from django.contrib.auth.decorators import login_required

from django.contrib import messages

from django.core.exceptions import ObjectDoesNotExist

from django.core.exceptions import ValidationError

from django.db import transaction

from django.shortcuts import redirect

from django.shortcuts import render

GuidedRegistrationSection = namedtuple(

    "GuidedRegistrationSection",

    (

        "title",

        "discounts",

        "description",

        "form",

    )

)

GuidedRegistrationSection.__new__.__defaults__ = (

    (None,) * len(GuidedRegistrationSection._fields)

)

def checkout(request):

    ''' Runs checkout for the current cart of items, ideally generating an

    invoice. '''

    current_cart = CartController.for_user(request.user)

    current_invoice = InvoiceController.for_cart(current_cart.cart)

    return redirect("invoice", current_invoice.invoice.id)

@login_required

def invoice(request, invoice_id):

    ''' Displays an invoice for a given invoice id. '''

    invoice_id = int(invoice_id)

    inv = rego.Invoice.objects.get(pk=invoice_id)

    current_invoice = InvoiceController(inv)

    data = {

        "invoice": current_invoice.invoice,

    }

    return render(request, "registrasion/invoice.html", data)

@login_required

def pay_invoice(request, invoice_id):

    ''' Marks the invoice with the given invoice id as paid.

    WORK IN PROGRESS FUNCTION. Must be replaced with real payment workflow.

    '''

    invoice_id = int(invoice_id)

    inv = rego.Invoice.objects.get(pk=invoice_id)

    current_invoice = InvoiceController(inv)

        current_invoice.pay("Demo invoice payment", inv.value)

    return redirect("invoice", current_invoice.invoice.id)