don't use tokens as primary keys

src/c3nav/mapdata/migrations/0060_accesspermissiontoken_id.py

@@ -0,0 +1,43 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.7 on 2017-12-18 13:49
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+import uuid
+
+
+def remove_all_tokens(apps, schema_editor):
+    apps.get_model('mapdata', 'AccessPermissionToken').objects.all().delete()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mapdata', '0059_multiple_accesspermissions'),
+    ]
+
+    operations = [
+        migrations.RunPython(remove_all_tokens, remove_all_tokens),
+        migrations.RemoveField(
+            model_name='accesspermission',
+            name='token',
+        ),
+        migrations.AddField(
+            model_name='accesspermissiontoken',
+            name='token',
+            field=models.UUIDField(default=uuid.uuid4, editable=False, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='accesspermissiontoken',
+            name='id',
+            field=models.AutoField(primary_key=True, serialize=False),
+        ),
+        migrations.AddField(
+            model_name='accesspermission',
+            name='token',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE,
+                                    related_name='accesspermissions', to='mapdata.AccessPermissionToken',
+                                    verbose_name='Access permission token'),
+        ),
+    ]

src/c3nav/mapdata/models/access.py

@@ -40,7 +40,7 @@ AccessPermissionTokenItem = namedtuple('AccessPermissionTokenItem', ('pk', 'expi
 
 
 class AccessPermissionToken(models.Model):
-    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
+    token = models.UUIDField(unique=True, default=uuid.uuid4, editable=False)
     author = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.PROTECT,
                                related_name='created_accesspermission_tokens',
                                verbose_name=_('author'))

src/c3nav/mapdata/models/geometry/space.py

@@ -9,7 +9,7 @@ from django.utils.text import format_lazy
 from django.utils.translation import ugettext_lazy as _
 from shapely.geometry import CAP_STYLE, JOIN_STYLE, mapping
 
-from c3nav.mapdata.fields import GeometryField, JSONField
+from c3nav.mapdata.fields import GeometryField, JSONField, I18nField
 from c3nav.mapdata.models.geometry.base import GeometryMixin
 from c3nav.mapdata.models.locations import SpecificLocation
 from c3nav.mapdata.utils.cache.changes import changed_geometries