fix event-dependent unique constraints in AKModel

AKModel/migrations/0028_unique_constraints.py

+# Generated by Django 2.2.6 on 2020-05-10 10:48
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('AKModel', '0027_event_timezone'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='akcategory',
+            name='name',
+            field=models.CharField(help_text='Name of the AK Category', max_length=64, verbose_name='Name'),
+        ),
+        migrations.AlterField(
+            model_name='akowner',
+            name='slug',
+            field=models.SlugField(blank=True, help_text='Slug for URL generation', max_length=64, verbose_name='Slug'),
+        ),
+        migrations.AlterField(
+            model_name='akrequirement',
+            name='name',
+            field=models.CharField(help_text='Name of the Requirement', max_length=128, verbose_name='Name'),
+        ),
+        migrations.AlterField(
+            model_name='aktrack',
+            name='name',
+            field=models.CharField(help_text='Name of the AK Track', max_length=64, verbose_name='Name'),
+        ),
+        migrations.AlterUniqueTogether(
+            name='ak',
+            unique_together={('event', 'name'), ('event', 'short_name')},
+        ),
+        migrations.AlterUniqueTogether(
+            name='akcategory',
+            unique_together={('event', 'name')},
+        ),
+        migrations.AlterUniqueTogether(
+            name='akowner',
+            unique_together={('event', 'name', 'institution'), ('event', 'slug')},
+        ),
+        migrations.AlterUniqueTogether(
+            name='akrequirement',
+            unique_together={('event', 'name')},
+        ),
+        migrations.AlterUniqueTogether(
+            name='aktrack',
+            unique_together={('event', 'name')},
+        ),
+        migrations.AlterUniqueTogether(
+            name='room',
+            unique_together={('event', 'name', 'building')},
+        ),
+    ]

AKModel/models.py

@@ -50,8 +50,7 @@ class AKOwner(models.Model):
     """ An AKOwner describes the person organizing/holding an AK.
     """
     name = models.CharField(max_length=64, verbose_name=_('Nickname'), help_text=_('Name to identify an AK owner by'))
-    slug = models.SlugField(max_length=64, blank=True, unique=True, verbose_name=_('Slug'),
-                            help_text=_('Slug for URL generation'))
+    slug = models.SlugField(max_length=64, blank=True, verbose_name=_('Slug'), help_text=_('Slug for URL generation'))
     institution = models.CharField(max_length=128, blank=True, verbose_name=_('Institution'), help_text=_('Uni etc.'))
     link = models.URLField(blank=True, verbose_name=_('Web Link'), help_text=_('Link to Homepage'))
 
@@ -62,7 +61,7 @@ class AKOwner(models.Model):
         verbose_name = _('AK Owner')
         verbose_name_plural = _('AK Owners')
         ordering = ['name']
-        unique_together = [['name', 'institution']]
+        unique_together = [['event', 'name', 'institution'], ['event', 'slug']]
 
     def __str__(self):
         if self.institution:
@@ -73,15 +72,15 @@ class AKOwner(models.Model):
         max_length = self._meta.get_field('slug').max_length
 
         slug_candidate = slugify(self.name)[:max_length]
-        if not AKOwner.objects.filter(slug=slug_candidate).exists():
+        if not AKOwner.objects.filter(event=self.event, slug=slug_candidate).exists():
             self.slug = slug_candidate
             return
         slug_candidate = slugify(slug_candidate + '_' + self.institution)[:max_length]
-        if not AKOwner.objects.filter(slug=slug_candidate).exists():
+        if not AKOwner.objects.filter(event=self.event, slug=slug_candidate).exists():
             self.slug = slug_candidate
             return
         for i in itertools.count(1):
-            if not AKOwner.objects.filter(slug=slug_candidate).exists():
+            if not AKOwner.objects.filter(event=self.event, slug=slug_candidate).exists():
                 break
             digits = len(str(i))
             slug_candidate = '{}-{}'.format(slug_candidate[:-(digits + 1)], i)
@@ -95,14 +94,14 @@ class AKOwner(models.Model):
         super().save(*args, **kwargs)
 
     @staticmethod
-    def get_by_slug(slug):
-        return AKOwner.objects.get(slug=slug)
+    def get_by_slug(event, slug):
+        return AKOwner.objects.get(event=event, slug=slug)
 
 
 class AKCategory(models.Model):
     """ An AKCategory describes the characteristics of an AK, e.g. content vs. recreational.
     """
-    name = models.CharField(max_length=64, unique=True, verbose_name=_('Name'), help_text=_('Name of the AK Category'))
+    name = models.CharField(max_length=64, verbose_name=_('Name'), help_text=_('Name of the AK Category'))
     color = models.CharField(max_length=7, blank=True, verbose_name=_('Color'), help_text=_('Color for displaying'))
     description = models.TextField(blank=True, verbose_name=_("Description"),
                                    help_text=_("Short description of this AK Category"))
@@ -114,6 +113,7 @@ class AKCategory(models.Model):
         verbose_name = _('AK Category')
         verbose_name_plural = _('AK Categories')
         ordering = ['name']
+        unique_together = ['event', 'name']
 
     def __str__(self):
         return self.name
@@ -122,7 +122,7 @@ class AKCategory(models.Model):
 class AKTrack(models.Model):
     """ An AKTrack describes a set of semantically related AKs.
     """
-    name = models.CharField(max_length=64, unique=True, verbose_name=_('Name'), help_text=_('Name of the AK Track'))
+    name = models.CharField(max_length=64, verbose_name=_('Name'), help_text=_('Name of the AK Track'))
     color = models.CharField(max_length=7, blank=True, verbose_name=_('Color'), help_text=_('Color for displaying'))
 
     event = models.ForeignKey(to=Event, on_delete=models.CASCADE, verbose_name=_('Event'),
@@ -132,6 +132,7 @@ class AKTrack(models.Model):
         verbose_name = _('AK Track')
         verbose_name_plural = _('AK Tracks')
         ordering = ['name']
+        unique_together = ['event', 'name']
 
     def __str__(self):
         return self.name
@@ -154,7 +155,7 @@ class AKTag(models.Model):
 class AKRequirement(models.Model):
     """ An AKRequirement describes something needed to hold an AK, e.g. infrastructure.
     """
-    name = models.CharField(max_length=128, unique=True, verbose_name=_('Name'), help_text=_('Name of the Requirement'))
+    name = models.CharField(max_length=128, verbose_name=_('Name'), help_text=_('Name of the Requirement'))
 
     event = models.ForeignKey(to=Event, on_delete=models.CASCADE, verbose_name=_('Event'),
                               help_text=_('Associated event'))
@@ -163,6 +164,7 @@ class AKRequirement(models.Model):
         verbose_name = _('AK Requirement')
         verbose_name_plural = _('AK Requirements')
         ordering = ['name']
+        unique_together = ['event', 'name']
 
     def __str__(self):
         return self.name
@@ -211,7 +213,7 @@ class AK(models.Model):
     class Meta:
         verbose_name = _('AK')
         verbose_name_plural = _('AKs')
-        unique_together = [('name', 'event'), ('short_name', 'event')]
+        unique_together = [['event', 'name'], ['event', 'short_name']]
 
     def __str__(self):
         if self.short_name:
@@ -248,7 +250,7 @@ class Room(models.Model):
         verbose_name = _('Room')
         verbose_name_plural = _('Rooms')
         ordering = ['building', 'name']
-        unique_together = [['name', 'building']]
+        unique_together = ['event', 'name', 'building']
 
     @property
     def title(self):

AKSubmission/views.py

@@ -128,13 +128,13 @@ class AKAndAKWishSubmissionView(EventSlugMixin, CreateView):
 class AKSubmissionView(AKAndAKWishSubmissionView):
     def get_initial(self):
         initials = super(AKAndAKWishSubmissionView, self).get_initial()
-        initials['owners'] = [AKOwner.get_by_slug(self.kwargs['owner_slug'])]
+        initials['owners'] = [AKOwner.get_by_slug(self.event, self.kwargs['owner_slug'])]
         initials['event'] = self.event
         return initials
 
     def get_context_data(self, *, object_list=None, **kwargs):
         context = super().get_context_data(object_list=object_list, **kwargs)
-        context['owner'] = get_object_or_404(AKOwner, slug=self.kwargs['owner_slug'])
+        context['owner'] = get_object_or_404(AKOwner, event=self.event, slug=self.kwargs['owner_slug'])
         return context
 
 
@@ -206,7 +206,7 @@ class AKOwnerSelectDispatchView(EventSlugMixin, View):
             reverse_lazy('submit:submit_ak', kwargs={'event_slug': kwargs['event_slug'], 'owner_slug': owner.slug}))
 
 
-class AKOwnerEditView(EventSlugMixin, UpdateView):
+class AKOwnerEditView(FilterByEventSlugMixin, UpdateView):
     model = AKOwner
     template_name = "AKSubmission/akowner_create_update.html"
     form_class = AKOwnerForm
@@ -252,7 +252,8 @@ class AKSlotAddView(EventSlugMixin, CreateView):
 
     def get_success_url(self):
         messages.add_message(self.request, messages.SUCCESS, _("AK Slot successfully added"))
-        return reverse_lazy('submit:ak_detail', kwargs={'event_slug': self.kwargs['event_slug'], 'pk': self.object.ak.pk})
+        return reverse_lazy('submit:ak_detail',
+                            kwargs={'event_slug': self.kwargs['event_slug'], 'pk': self.object.ak.pk})
 
 
 class AKSlotEditView(EventSlugMixin, UpdateView):
@@ -263,7 +264,8 @@ class AKSlotEditView(EventSlugMixin, UpdateView):
     def get(self, request, *args, **kwargs):
         akslot = get_object_or_404(AKSlot, pk=kwargs["pk"])
         if akslot.start is not None:
-            messages.add_message(self.request, messages.WARNING, _("You cannot edit a slot that has already been scheduled"))
+            messages.add_message(self.request, messages.WARNING,
+                                 _("You cannot edit a slot that has already been scheduled"))
             return redirect('submit:ak_detail', event_slug=self.kwargs['event_slug'], pk=akslot.ak.pk)
         return super().get(request, *args, **kwargs)
 
@@ -274,7 +276,8 @@ class AKSlotEditView(EventSlugMixin, UpdateView):
 
     def get_success_url(self):
         messages.add_message(self.request, messages.SUCCESS, _("AK Slot successfully updated"))
-        return reverse_lazy('submit:ak_detail', kwargs={'event_slug': self.kwargs['event_slug'], 'pk': self.object.ak.pk})
+        return reverse_lazy('submit:ak_detail',
+                            kwargs={'event_slug': self.kwargs['event_slug'], 'pk': self.object.ak.pk})
 
 
 class AKSlotDeleteView(EventSlugMixin, DeleteView):
@@ -284,7 +287,8 @@ class AKSlotDeleteView(EventSlugMixin, DeleteView):
     def get(self, request, *args, **kwargs):
         akslot = get_object_or_404(AKSlot, pk=kwargs["pk"])
         if akslot.start is not None:
-            messages.add_message(self.request, messages.WARNING, _("You cannot delete a slot that has already been scheduled"))
+            messages.add_message(self.request, messages.WARNING,
+                                 _("You cannot delete a slot that has already been scheduled"))
             return redirect('submit:ak_detail', event_slug=self.kwargs['event_slug'], pk=akslot.ak.pk)
         return super().get(request, *args, **kwargs)
 
@@ -295,4 +299,5 @@ class AKSlotDeleteView(EventSlugMixin, DeleteView):
 
     def get_success_url(self):
         messages.add_message(self.request, messages.SUCCESS, _("AK Slot successfully deleted"))
-        return reverse_lazy('submit:ak_detail', kwargs={'event_slug': self.kwargs['event_slug'], 'pk': self.object.ak.pk})
+        return reverse_lazy('submit:ak_detail',
+                            kwargs={'event_slug': self.kwargs['event_slug'], 'pk': self.object.ak.pk})