1 files changed, 84 insertions, 0 deletions
diff --git a/internal/db/bundb/migrations/20231110142330_small_poll_table_tweaks.go b/internal/db/bundb/migrations/20231110142330_small_poll_table_tweaks.go
new file mode 100644
index 000000000..c9f2b3d0f
--- /dev/null
+++ b/internal/db/bundb/migrations/20231110142330_small_poll_table_tweaks.go
@@ -0,0 +1,84 @@
+// GoToSocial
+// Copyright (C) GoToSocial Authors admin@gotosocial.org
+// SPDX-License-Identifier: AGPL-3.0-or-later
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+package migrations
+
+import (
+	"context"
+
+	"github.com/uptrace/bun"
+)
+
+func init() {
+	up := func(ctx context.Context, db *bun.DB) error {
+		return db.RunInTx(ctx, nil, func(ctx context.Context, tx bun.Tx) error {
+			// Add new poll expiry column WITHOUT
+			// the previously set NULL constraint.
+			if _, err := tx.NewAddColumn().
+				Table("polls").
+				ColumnExpr("? TIMESTAMPTZ", bun.Ident("expires_at_new")).
+				Exec(ctx); err != nil {
+				return err
+			}
+
+			// Copy all data from old to new,
+			// this won't cause anyn issues as
+			// old column is NOT NULL and it's
+			// only the new column that drops
+			// this constraint to allow NULL.
+			if _, err := tx.NewUpdate().
+				Table("polls").
+				Column("expires_at_new").
+				Set("? = ?", bun.Ident("expires_at_new"), bun.Ident("expires_at")).
+				Where("1"). // bun gets angry performing update over all rows
+				Exec(ctx); err != nil {
+				return err
+			}
+
+			// Drop the old poll expiry column.
+			if _, err := tx.NewDropColumn().
+				Table("polls").
+				ColumnExpr("?", bun.Ident("expires_at")).
+				Exec(ctx); err != nil {
+				return err
+			}
+
+			// Rename the new expiry column
+			// to the correct name (of the old).
+			if _, err := tx.NewRaw(
+				"ALTER TABLE ? RENAME COLUMN ? TO ?",
+				bun.Ident("polls"),
+				bun.Ident("expires_at_new"),
+				bun.Ident("expires_at"),
+			).Exec(ctx); err != nil {
+				return err
+			}
+
+			return nil
+		})
+	}
+
+	down := func(ctx context.Context, db *bun.DB) error {
+		return db.RunInTx(ctx, nil, func(ctx context.Context, tx bun.Tx) error {
+			return nil
+		})
+	}
+
+	if err := Migrations.Register(up, down); err != nil {
+		panic(err)
+	}
+}