mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-11-01 23:10:01 +00:00
41 lines
1.5 KiB
Go
41 lines
1.5 KiB
Go
|
// 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"
|
||
|
|
"github.com/uptrace/bun/dialect"
|
||
|
|
)
|
||
|
|
|
||
|
|
// doesColumnExist safely checks whether given column exists on table, handling both SQLite and PostgreSQL appropriately.
|
||
|
|
func doesColumnExist(ctx context.Context, tx bun.Tx, table, col string) (bool, error) {
|
||
|
|
var n int
|
||
|
|
var err error
|
||
|
|
switch tx.Dialect().Name() {
|
||
|
|
case dialect.SQLite:
|
||
|
|
err = tx.NewRaw("SELECT COUNT(*) FROM pragma_table_info(?) WHERE name=?", table, col).Scan(ctx, &n)
|
||
|
|
case dialect.PG:
|
||
|
|
err = tx.NewRaw("SELECT COUNT(*) FROM information_schema.columns WHERE table_name=? and column_name=?", table, col).Scan(ctx, &n)
|
||
|
|
default:
|
||
|
|
panic("unexpected dialect")
|
||
|
|
}
|
||
|
|
return (n > 0), err
|
||
|
|
}
|