Use UUID 4 instead of UUID 5

aleksis/core/migrations/0042_add_uuid_field.py

 # Generated by Django 3.2.14 on 2022-07-16 12:49
 
-import aleksis.core.mixins
+import uuid
+
 from django.db import migrations, models
 import django.utils.timezone
 
@@ -15,81 +16,81 @@ class Migration(migrations.Migration):
         migrations.AddField(
             model_name='activity',
             name='uuid',
-            field=models.UUIDField(default=aleksis.core.mixins._generate_object_uuid, editable=False, unique=True),
+            field=models.UUIDField(default=uuid.uuid4, editable=False, unique=True),
         ),
         migrations.AddField(
             model_name='additionalfield',
             name='uuid',
-            field=models.UUIDField(default=aleksis.core.mixins._generate_object_uuid, editable=False, unique=True),
+            field=models.UUIDField(default=uuid.uuid4, editable=False, unique=True),
         ),
         migrations.AddField(
             model_name='announcement',
             name='uuid',
-            field=models.UUIDField(default=aleksis.core.mixins._generate_object_uuid, editable=False, unique=True),
+            field=models.UUIDField(default=uuid.uuid4, editable=False, unique=True),
         ),
         migrations.AddField(
             model_name='announcementrecipient',
             name='uuid',
-            field=models.UUIDField(default=aleksis.core.mixins._generate_object_uuid, editable=False, unique=True),
+            field=models.UUIDField(default=uuid.uuid4, editable=False, unique=True),
         ),
         migrations.AddField(
             model_name='custommenu',
             name='uuid',
-            field=models.UUIDField(default=aleksis.core.mixins._generate_object_uuid, editable=False, unique=True),
+            field=models.UUIDField(default=uuid.uuid4, editable=False, unique=True),
         ),
         migrations.AddField(
             model_name='custommenuitem',
             name='uuid',
-            field=models.UUIDField(default=aleksis.core.mixins._generate_object_uuid, editable=False, unique=True),
+            field=models.UUIDField(default=uuid.uuid4, editable=False, unique=True),
         ),
         migrations.AddField(
             model_name='dashboardwidgetorder',
             name='uuid',
-            field=models.UUIDField(default=aleksis.core.mixins._generate_object_uuid, editable=False, unique=True),
+            field=models.UUIDField(default=uuid.uuid4, editable=False, unique=True),
         ),
         migrations.AddField(
             model_name='datacheckresult',
             name='uuid',
-            field=models.UUIDField(default=aleksis.core.mixins._generate_object_uuid, editable=False, unique=True),
+            field=models.UUIDField(default=uuid.uuid4, editable=False, unique=True),
         ),
         migrations.AddField(
             model_name='group',
             name='uuid',
-            field=models.UUIDField(default=aleksis.core.mixins._generate_object_uuid, editable=False, unique=True),
+            field=models.UUIDField(default=uuid.uuid4, editable=False, unique=True),
         ),
         migrations.AddField(
             model_name='grouptype',
             name='uuid',
-            field=models.UUIDField(default=aleksis.core.mixins._generate_object_uuid, editable=False, unique=True),
+            field=models.UUIDField(default=uuid.uuid4, editable=False, unique=True),
         ),
         migrations.AddField(
             model_name='notification',
             name='uuid',
-            field=models.UUIDField(default=aleksis.core.mixins._generate_object_uuid, editable=False, unique=True),
+            field=models.UUIDField(default=uuid.uuid4, editable=False, unique=True),
         ),
         migrations.AddField(
             model_name='pdffile',
             name='uuid',
-            field=models.UUIDField(default=aleksis.core.mixins._generate_object_uuid, editable=False, unique=True),
+            field=models.UUIDField(default=uuid.uuid4, editable=False, unique=True),
         ),
         migrations.AddField(
             model_name='person',
             name='uuid',
-            field=models.UUIDField(default=aleksis.core.mixins._generate_object_uuid, editable=False, unique=True),
+            field=models.UUIDField(default=uuid.uuid4, editable=False, unique=True),
         ),
         migrations.AddField(
             model_name='persongroupthrough',
             name='uuid',
-            field=models.UUIDField(default=aleksis.core.mixins._generate_object_uuid, editable=False, unique=True),
+            field=models.UUIDField(default=uuid.uuid4, editable=False, unique=True),
         ),
         migrations.AddField(
             model_name='schoolterm',
             name='uuid',
-            field=models.UUIDField(default=aleksis.core.mixins._generate_object_uuid, editable=False, unique=True),
+            field=models.UUIDField(default=uuid.uuid4, editable=False, unique=True),
         ),
         migrations.AddField(
             model_name='taskuserassignment',
             name='uuid',
-            field=models.UUIDField(default=aleksis.core.mixins._generate_object_uuid, editable=False, unique=True),
+            field=models.UUIDField(default=uuid.uuid4, editable=False, unique=True),
         ),
     ]

aleksis/core/mixins.py

@@ -83,10 +83,6 @@ def _generate_one_to_one_proxy_property(field, subfield):
     return property(getter, setter)
 
 
-def _generate_object_uuid():
-    return uuid.uuid5(uuid.NAMESPACE_URL, settings.BASE_URL)
-
-
 class ExtensibleModel(models.Model, metaclass=_ExtensibleModelBase):
     """Base model for all objects in AlekSIS apps.
 
@@ -131,7 +127,7 @@ class ExtensibleModel(models.Model, metaclass=_ExtensibleModelBase):
         - Dominik George <dominik.george@teckids.org>
     """
 
-    uuid = models.UUIDField(unique=True, default=_generate_object_uuid, editable=False)
+    uuid = models.UUIDField(unique=True, default=uuid.uuid4, editable=False)
 
     # Defines a material design icon associated with this type of model
     icon_ = "radio_button_unchecked"