Minor refactoring

src/tixlbase/cache.py

@@ -38,7 +38,8 @@ class EventRelatedCache:
             key = hashlib.sha256(key.encode("UTF-8")).hexdigest()
         return key
 
-    def _strip_prefix(self, key):
+    @staticmethod
+    def _strip_prefix(key):
         return key.split(":", 3)[-1] if 'event:' in key else key
 
     def clear(self):

src/tixlbase/middleware.py

@@ -7,8 +7,7 @@ from django.utils.translation.trans_real import (
     get_supported_language_variant,
     parse_accept_lang_header,
     language_code_re,
-    check_for_language,
-    _supported
+    check_for_language
 )
 from django.utils.translation import LANGUAGE_SESSION_KEY
 from django.utils import translation, timezone
@@ -17,6 +16,8 @@ from django.utils.cache import patch_vary_headers
 
 from tixlbase.models import Event
 
+_supported = None
+
 
 class LocaleMiddleware(BaseLocaleMiddleware):
 

src/tixlbase/models.py

@@ -88,7 +88,7 @@ class User(AbstractBaseUser, PermissionsMixin):
     is_active = models.BooleanField(default=True,
                                     verbose_name=_('Is active'))
     is_staff = models.BooleanField(default=False,
-                                   verbose_name=('Is site admin'))
+                                   verbose_name=_('Is site admin'))
     date_joined = models.DateTimeField(auto_now_add=True,
                                        verbose_name=_('Date joined'))
     locale = models.CharField(max_length=50,
@@ -97,7 +97,7 @@ class User(AbstractBaseUser, PermissionsMixin):
                               verbose_name=_('Language'))
     timezone = models.CharField(max_length=100,
                                 default=settings.TIME_ZONE,
-                                verbose_name=('Timezone'))
+                                verbose_name=_('Timezone'))
 
     objects = UserManager()
 

src/tixlbase/types.py

@@ -30,17 +30,31 @@ class VariationDict(dict):
 
     def identify(self):
         """
-        Build an identifier for this dict. This can be any string used to
-        compare one VariationDict to others.
+        Build a simple and unique identifier for this dict. This can be any string
+        used to compare one VariationDict to others.
 
         In the current implementation, it is a string containing a list of
         the PropertyValue id's, sorted by the Property id's and is therefore
         unique among one item.
         """
         order_key = lambda i: i[0]
-        return ",".join([
+        return ",".join((
             str(v[1].pk) for v in sorted(self.relevant_items(), key=order_key)
-        ])
+        ))
+
+    def key(self):
+        """
+        Build an identifier for this dict which exactly specifies the combination
+        for this variation without any doubt. This can be used to "talk" about a
+        variation in network communication.
+
+        In the current implementation, it is a string containing a list of
+        the propertyid:valueid tuples without any specific order and is therefore
+        not useful to compare two VariationDicts for equality.
+        """
+        return ",".join((
+            str(v[0]) + ":" + str(v[1].pk) for v in self.relevant_items()
+        ))
 
     def __eq__(self, other):
         if type(other) is type(self):

src/tixlcontrol/templates/tixlcontrol/items/categories.html

@@ -35,7 +35,7 @@
 					<a href="{% url "control:event.items.categories.up" organizer=request.event.organizer.slug event=request.event.slug category=c.pk %}" class="btn btn-default btn-sm {% if forloop.counter0 == 0 %}disabled{% endif %}"><i class="fa fa-arrow-up"></i></a>
 					<a href="{% url "control:event.items.categories.down" organizer=request.event.organizer.slug event=request.event.slug category=c.pk %}" class="btn btn-default btn-sm {% if forloop.revcounter0 == 0 %}disabled{% endif %}"><i class="fa fa-arrow-down"></i></a>
 				</td>
-				<td class="text-right"><a href="{% url "control:event.items.categories.delete" organizer=request.event.organizer.slug event=request.event.slug category=c.pk %}"" class="btn btn-danger btn-sm"><i class="fa fa-trash"></i></a></td>
+				<td class="text-right"><a href="{% url "control:event.items.categories.delete" organizer=request.event.organizer.slug event=request.event.slug category=c.pk %}" class="btn btn-danger btn-sm"><i class="fa fa-trash"></i></a></td>
 			</tr>
 			{% endfor %}
 		</tbody>

src/tixlcontrol/templates/tixlcontrol/items/properties.html

@@ -30,7 +30,7 @@
 			{% for p in properties %}
 			<tr>
 				<td><strong><a href="{% url "control:event.items.properties.edit" organizer=request.event.organizer.slug event=request.event.slug property=p.pk %}">{{ p.name }}</a></strong></td>
-				<td class="text-right"><a href="{% url "control:event.items.properties.delete" organizer=request.event.organizer.slug event=request.event.slug property=p.pk %}"" class="btn btn-danger btn-sm"><i class="fa fa-trash"></i></a></td>
+				<td class="text-right"><a href="{% url "control:event.items.properties.delete" organizer=request.event.organizer.slug event=request.event.slug property=p.pk %}" class="btn btn-danger btn-sm"><i class="fa fa-trash"></i></a></td>
 			</tr>
 			{% endfor %}
 		</tbody>

src/tixlcontrol/templates/tixlcontrol/items/questions.html

@@ -32,7 +32,7 @@
 			<tr>
 				<td><strong><a href="{% url "control:event.items.questions.edit" organizer=request.event.organizer.slug event=request.event.slug question=q.pk %}">{{ q.question }}</a></strong></td>
 				<td>{{ q.get_type_display }}</td>
-				<td class="text-right"><a href="{% url "control:event.items.questions.delete" organizer=request.event.organizer.slug event=request.event.slug question=q.pk %}"" class="btn btn-danger btn-sm"><i class="fa fa-trash"></i></a></td>
+				<td class="text-right"><a href="{% url "control:event.items.questions.delete" organizer=request.event.organizer.slug event=request.event.slug question=q.pk %}" class="btn btn-danger btn-sm"><i class="fa fa-trash"></i></a></td>
 			</tr>
 			{% endfor %}
 		</tbody>

src/tixlcontrol/views/forms.py

@@ -27,6 +27,8 @@ class TolerantFormsetModelForm(forms.ModelForm):
                     # Always assume data has changed if validation fails.
                     self._changed_data.append(name)
                     continue
+            # We're using a private API of Django here. This is not nice, but no problem as it seems
+            # like this will become a public API in Django 1.7.
             if field._has_changed(initial_value, data_value):
                 return True
         return False

src/tixlplugins/timerestriction/signals.py

@@ -88,8 +88,7 @@ def availability_handler(sender, **kwargs):
                 if 'variation' not in v or v['variation'] not in applied_to:
                     continue
 
-            if (restriction.timeframe_from <= now()
-                    and restriction.timeframe_to >= now()):
+            if (restriction.timeframe_from <= now() <= restriction.timeframe_to):
                 # Selling this item is currently possible
                 available = True
                 # If multiple time frames are currently active, make sure to