Add compatibility with python3 and use uuid4

saleor/cart/forms.py

@@ -120,7 +120,7 @@ class ReplaceCartLineFormSet(BaseFormSet):
     form = ReplaceCartLineForm
     max_num = DEFAULT_MAX_NUM
     validate_max = False
-    min_num = None
+    min_num = 0
     validate_min = False
 
     def __init__(self, *args, **kwargs):

saleor/core/__init__.py

@@ -0,0 +1,3 @@
+
+TOKEN_PATTERN = ('(?P<token>[0-9a-z]{8}-[0-9a-z]{4}-[0-9a-z]{4}-[0-9a-z]{4}'
+                 '-[0-9a-z]{12})')

saleor/order/models.py

@@ -57,19 +57,14 @@ class Order(models.Model, ItemSet):
     anonymous_user_email = models.EmailField(blank=True, default='',
                                              editable=False)
     token = models.CharField(
-        pgettext_lazy('Order field', 'token'),
-        max_length=36, blank=True, default='')
+        pgettext_lazy('Order field', 'token'), max_length=36, unique=True)
 
     class Meta:
         ordering = ('-last_status_change',)
 
     def save(self, *args, **kwargs):
         if not self.token:
-            for _i in range(100):
-                token = str(uuid4())
-                if not type(self).objects.filter(token=token).exists():
-                    self.token = token
-                    break
+            self.token = str(uuid4())
         return super(Order, self).save(*args, **kwargs)
 
     def change_status(self, status):

saleor/order/urls.py

@@ -1,15 +1,13 @@
 from django.conf.urls import patterns, url
 
+from ..core import TOKEN_PATTERN
 from . import views
 
 
-TOKEN_PATTERN = ('(?P<token>[0-9a-z]{8}-[0-9a-z]{4}-[0-9a-z]{4}-[0-9a-z]{4}'
-                 '-[0-9a-z]{12})')
-
 urlpatterns = patterns(
     '',
-    url(r'^%s/$' % TOKEN_PATTERN, views.details, name='details'),
-    url(r'^%s/payment/(?P<variant>[-\w]+)/$' % TOKEN_PATTERN,
+    url(r'^%s/$' % (TOKEN_PATTERN,), views.details, name='details'),
+    url(r'^%s/payment/(?P<variant>[-\w]+)/$' % (TOKEN_PATTERN,),
         views.start_payment, name='payment'),
-    url(r'^%s/cancel-payment/$' % TOKEN_PATTERN, views.cancel_payment,
+    url(r'^%s/cancel-payment/$' % (TOKEN_PATTERN,), views.cancel_payment,
         name='cancel-payment'))

saleor/registration/models.py

@@ -1,12 +1,12 @@
 from __future__ import unicode_literals
 from datetime import timedelta
+from uuid import uuid4
 
 from django.db import models
 from django.contrib.auth import authenticate, get_user_model
 from django.conf import settings
 from django.core.urlresolvers import reverse
 from django.utils import timezone
-from django.utils.crypto import get_random_string
 
 now = timezone.now
 
@@ -23,33 +23,25 @@ class Meta:
 
 class UniqueTokenManager(models.Manager):  # this might end up in `utils`
 
-    def __init__(self, token_field, token_length):
+    def __init__(self, token_field):
         self.token_field = token_field
-        self.token_length = token_length
         super(UniqueTokenManager, self).__init__()
 
     def create(self, **kwargs):
         assert self.token_field not in kwargs, 'Token field already filled.'
-        for _x in xrange(100):
-            token = get_random_string(self.token_length)
-            conflict_filter = {self.token_field: token}
-            conflict = self.get_query_set().filter(**conflict_filter)
-            if not conflict.exists():
-                kwargs[self.token_field] = token
-                return super(UniqueTokenManager, self).create(**kwargs)
-        raise RuntimeError('Could not create unique token.')
+        kwargs[self.token_field] = str(uuid4())
+        return super(UniqueTokenManager, self).create(**kwargs)
 
 
 class AbstractToken(models.Model):
 
-    TOKEN_LENGTH = 32
+    def default_valid_date():
+        return now() + timedelta(settings.ACCOUNT_ACTIVATION_DAYS)
 
-    token = models.CharField(max_length=TOKEN_LENGTH, unique=True)
-    valid_until = models.DateTimeField(
-        default=lambda: now() + timedelta(settings.ACCOUNT_ACTIVATION_DAYS))
+    token = models.CharField(max_length=36, unique=True)
+    valid_until = models.DateTimeField(default=default_valid_date)
 
-    objects = UniqueTokenManager(token_field='token',
-                                 token_length=TOKEN_LENGTH)
+    objects = UniqueTokenManager(token_field='token')
 
     class Meta:
         abstract = True

saleor/registration/urls.py

@@ -1,5 +1,6 @@
 from django.conf.urls import patterns, url
 
+from ..core import TOKEN_PATTERN
 from . import views
 
 
@@ -13,9 +14,9 @@
         name='change_password'),
     url(r'^request_email_confirmation/$', views.request_email_confirmation,
         name='request_email_confirmation'),
-    url(r'^confirm_email/(?P<token>\w+)/$', views.confirm_email,
+    url(r'^confirm_email/%s/$' % (TOKEN_PATTERN,), views.confirm_email,
         name='confirm_email'),
     url(r'^request_email_change/$', views.request_email_change,
         name='request_email_change'),
-    url(r'^change_email/(?P<token>\w+)/$', views.change_email,
+    url(r'^change_email/%s/$' % (TOKEN_PATTERN,), views.change_email,
         name='change_email'))