first commit

backend/alembic/versions/20260404_0009_digital_tickets.py

@@ -0,0 +1,42 @@
+"""digital ticket qr tokens and used status
+
+Revision ID: 20260404_0009
+Revises: 20260404_0008
+"""
+
+import secrets
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "20260404_0009"
+down_revision: Union[str, None] = "20260404_0008"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.execute("ALTER TYPE ticketstatus RENAME VALUE 'redeemed' TO 'used'")
+
+    op.add_column("tickets", sa.Column("qr_token", sa.String(length=64), nullable=True))
+    op.add_column("tickets", sa.Column("used_at", sa.DateTime(timezone=True), nullable=True))
+
+    connection = op.get_bind()
+    rows = connection.execute(sa.text("SELECT id FROM tickets WHERE qr_token IS NULL")).fetchall()
+    for row in rows:
+        token = secrets.token_urlsafe(32)
+        connection.execute(
+            sa.text("UPDATE tickets SET qr_token = :token WHERE id = :id"),
+            {"token": token, "id": row.id},
+        )
+
+    op.alter_column("tickets", "qr_token", nullable=False)
+    op.create_index(op.f("ix_tickets_qr_token"), "tickets", ["qr_token"], unique=True)
+
+
+def downgrade() -> None:
+    op.drop_index(op.f("ix_tickets_qr_token"), table_name="tickets")
+    op.drop_column("tickets", "used_at")
+    op.drop_column("tickets", "qr_token")
+    op.execute("ALTER TYPE ticketstatus RENAME VALUE 'used' TO 'redeemed'")