Refactor group and music game models to use UniqueConstraint; update form error handling in templates

game/migrations/0013_alter_group_unique_together_and_more.py

@@ -0,0 +1,53 @@
+# Generated by Django 5.2.3 on 2025-06-14 08:13
+
+import django.db.models.functions.text
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("game", "0012_alter_musikgame_playlist"),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.AlterUniqueTogether(
+            name="group",
+            unique_together=set(),
+        ),
+        migrations.AlterUniqueTogether(
+            name="musicgameorder",
+            unique_together=set(),
+        ),
+        migrations.AlterUniqueTogether(
+            name="musicvideo",
+            unique_together=set(),
+        ),
+        migrations.AddConstraint(
+            model_name="group",
+            constraint=models.UniqueConstraint(
+                django.db.models.functions.text.Lower("name"),
+                models.F("owner"),
+                name="unique_group_name",
+            ),
+        ),
+        migrations.AddConstraint(
+            model_name="musicgameorder",
+            constraint=models.UniqueConstraint(
+                fields=("game", "player", "music_video"), name="unique_music_in_game"
+            ),
+        ),
+        migrations.AddConstraint(
+            model_name="musicgameorder",
+            constraint=models.UniqueConstraint(
+                fields=("game", "order"), name="unique_order"
+            ),
+        ),
+        migrations.AddConstraint(
+            model_name="musicvideo",
+            constraint=models.UniqueConstraint(
+                fields=("yt_id", "owner", "group"), name="unique_music_in_group"
+            ),
+        ),
+    ]