// 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("TRUE"). // 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) } }