remove imports and ticket class from shop

src/shop/models.py

@@ -3,19 +3,16 @@ from django.db import models
 from django.db.models.aggregates import Sum
 from django.contrib import messages
 from django.contrib.postgres.fields import DateTimeRangeField, JSONField
-from django.http import HttpResponse
 from django.utils.text import slugify
 from django.utils.translation import ugettext_lazy as _
 from django.utils import timezone
 from django.core.urlresolvers import reverse_lazy
 from utils.models import UUIDModel, CreatedUpdatedModel
 from .managers import ProductQuerySet, OrderQuerySet
-import hashlib, io, base64, qrcode
 from decimal import Decimal
 from datetime import timedelta
 from unidecode import unidecode
 from django.utils.dateparse import parse_datetime
-from django.utils import timezone
 
 
 class CustomOrder(CreatedUpdatedModel):
@@ -454,64 +451,3 @@ class CoinifyAPIRequest(CreatedUpdatedModel):
 
     def __str__(self):
         return 'order %s api request %s' % (self.order.id, self.method)
-
-
-class Ticket(CreatedUpdatedModel, UUIDModel):
-    order = models.ForeignKey('shop.Order', related_name='tickets')
-    product = models.ForeignKey('shop.Product', related_name='tickets')
-    qrcode_base64 = models.TextField(null=True, blank=True)
-
-    name = models.CharField(
-        max_length=100,
-        help_text=(
-            'Name of the person this ticket belongs to. '
-            'This can be different from the buying user.'
-        ),
-        null=True,
-        blank=True,
-    )
-
-    email = models.EmailField(
-        null=True,
-        blank=True,
-    )
-
-    checked_in = models.BooleanField(default=False)
-
-    def __str__(self):
-        return 'Ticket {user} {product}'.format(
-            user=self.order.user,
-            product=self.product
-        )
-
-    def save(self, **kwargs):
-        super(Ticket, self).save(**kwargs)
-        self.qrcode_base64 = self.get_qr_code()
-        super(Ticket, self).save(**kwargs)
-
-    def get_token(self):
-        return hashlib.sha256(
-            '{ticket_id}{user_id}{secret_key}'.format(
-                ticket_id=self.pk,
-                user_id=self.order.user.pk,
-                secret_key=settings.SECRET_KEY,
-            ).encode('utf-8')
-        ).hexdigest()
-
-    def get_qr_code(self):
-        qr = qrcode.make(
-            self.get_token(),
-            version=1,
-            error_correction=qrcode.constants.ERROR_CORRECT_H
-        ).resize((250,250))
-        file_like = io.BytesIO()
-        qr.save(file_like, format='png')
-        qrcode_base64 = base64.b64encode(file_like.getvalue())
-        return qrcode_base64
-
-    def get_qr_code_url(self):
-        return 'data:image/png;base64,{}'.format(self.qrcode_base64)
-
-    def get_absolute_url(self):
-        return str(reverse_lazy('shop:ticket_detail', kwargs={'pk': self.pk}))
-