migration: add missing deleted_at columns to 9 TenantMixin tables (0083)

alembic/versions/0083_add_missing_deleted_at_columns.py

@@ -0,0 +1,53 @@
+"""Add missing deleted_at columns to TenantMixin tables.
+
+Several models inherit TenantMixin (which includes SoftDeleteMixin)
+but their DB tables were never migrated to include the deleted_at column.
+This causes 500 errors when SQLAlchemy tries to SELECT deleted_at.
+
+Revision ID: 0083
+Revises: 0082
+"""
+from alembic import op
+import sqlalchemy as sa
+
+revision = "0083"
+down_revision = "0082"
+branch_labels = None
+depends_on = None
+
+# Tables that use TenantMixin (and therefore SoftDeleteMixin) in their models
+# but are missing the deleted_at column in the database.
+TABLES_NEEDING_DELETED_AT = [
+    "contact_folder_permissions",
+    "permission_delegations",
+    "guest_users",
+    "entity_policies",
+    "notification_types",
+    "password_reset_tokens",
+    "api_tokens",
+    "permission_templates",
+    "user_groups",
+]
+
+
+def upgrade() -> None:
+    conn = op.get_bind()
+    for table_name in TABLES_NEEDING_DELETED_AT:
+        # Check if column already exists before adding
+        result = conn.execute(sa.text(
+            "SELECT 1 FROM information_schema.columns "
+            "WHERE table_name = :t AND column_name = 'deleted_at'"
+        ), {"t": table_name})
+        if result.scalar() is None:
+            op.add_column(
+                table_name,
+                sa.Column("deleted_at", sa.DateTime(timezone=True), nullable=True),
+            )
+            print(f"  Added deleted_at to {table_name}")
+        else:
+            print(f"  Skipped {table_name} (already has deleted_at)")
+
+
+def downgrade() -> None:
+    for table_name in reversed(TABLES_NEEDING_DELETED_AT):
+        op.drop_column(table_name, "deleted_at")