feat(submissions): scoped submissions per user/matchs, sync from polylan

polylan_submitter/submissions/migrations/0007_submission_scope.py

@@ -0,0 +1,37 @@
+import uuid
+
+import django.db.models.deletion
+from django.db import migrations, models
+
+
+def delete_existing_submissions(apps, schema_editor):
+    """Submissions predate Scope and can't be backfilled with one; wipe them."""
+    Submission = apps.get_model("submissions", "Submission")
+    Submission.objects.all().delete()
+
+
+class Migration(migrations.Migration):
+    # Deleting existing submissions (which cascades to their files/crops) fires
+    # deferred FK triggers on postgres; altering the same table right after in
+    # the same transaction hits "pending trigger events", so run non-atomically.
+    atomic = False
+
+    dependencies = [
+        ("submissions", "0006_scope"),
+    ]
+
+    operations = [
+        migrations.RunPython(delete_existing_submissions, migrations.RunPython.noop),
+        migrations.AddField(
+            model_name="submission",
+            name="scope",
+            field=models.ForeignKey(
+                default=uuid.uuid4,
+                help_text="The match this submission's score is for.",
+                on_delete=django.db.models.deletion.CASCADE,
+                related_name="submissions",
+                to="submissions.scope",
+            ),
+            preserve_default=False,
+        ),
+    ]