Improve documentation, add missing migrations

src/tixlplugins/timerestriction/migrations/0001_initial.py

@@ -0,0 +1,32 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('tixlbase', '0015_auto_20141006_2205'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='TimeRestriction',
+            fields=[
+                ('id', models.AutoField(primary_key=True, serialize=False, verbose_name='ID', auto_created=True)),
+                ('timeframe_from', models.DateTimeField(verbose_name='Start of time frame')),
+                ('timeframe_to', models.DateTimeField(verbose_name='End of time frame')),
+                ('price', models.DecimalField(max_digits=7, verbose_name='Price in time frame', decimal_places=2, null=True, blank=True)),
+                ('event', models.ForeignKey(related_name='restrictions_timerestriction_timerestriction', to='tixlbase.Event', verbose_name='Event')),
+                ('items', models.ManyToManyField(to='tixlbase.Item', related_name='restrictions_timerestriction_timerestriction')),
+                ('variations', models.ManyToManyField(to='tixlbase.ItemVariation', related_name='restrictions_timerestriction_timerestriction')),
+            ],
+            options={
+                'abstract': False,
+                'verbose_name_plural': 'Restrictions',
+                'verbose_name': 'Restriction',
+            },
+            bases=(models.Model,),
+        ),
+    ]

src/tixlplugins/timerestriction/signals.py

@@ -59,7 +59,9 @@ def availability_handler(sender, **kwargs):
         # Make up some unique key for this variation
         cachekey = 'timerestriction:%d:%s' % (
             item.pk,
-            ",".join(sorted([str(v[1].pk) for v in v.items() if v[0] != 'variation']))
+            ",".join(sorted(
+                [str(v[1].pk) for v in v.items() if v[0] != 'variation']
+            ))
         )
 
         # Fetch from cache, if available
@@ -83,19 +85,24 @@ 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()
+                    and restriction.timeframe_to >= now()):
                 # Selling this item is currently possible
                 available = True
                 # If multiple time frames are currently active, make sure to
                 # get the cheapest price:
-                if restriction.price is not None and (price is None or restriction.price < price):
+                if (restriction.price is not None
+                        and (price is None or restriction.price < price)):
                     price = restriction.price
 
         v['available'] = available
         v['price'] = price
         cache.set(
             cachekey,
-            '%s:%s' % ('True' if available else 'False', str(price) if price else ''),
+            '%s:%s' % (
+                'True' if available else 'False',
+                str(price) if price else ''
+            ),
             cache_validity
         )