mirror of
https://github.com/hoernschen/dendrite.git
synced 2024-12-29 08:18:27 +00:00
72 lines
2.3 KiB
Go
72 lines
2.3 KiB
Go
// Copyright 2023 The Matrix.org Foundation C.I.C.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package deltas
|
|
|
|
import (
|
|
"context"
|
|
"database/sql"
|
|
"fmt"
|
|
)
|
|
|
|
func UpDropEventReferenceSHA(ctx context.Context, tx *sql.Tx) error {
|
|
var count int
|
|
err := tx.QueryRowContext(ctx, `SELECT count(*) FROM roomserver_events GROUP BY event_id HAVING count(event_id) > 1`).
|
|
Scan(&count)
|
|
if err != nil && err != sql.ErrNoRows {
|
|
return fmt.Errorf("failed to query duplicate event ids")
|
|
}
|
|
if count > 0 {
|
|
return fmt.Errorf("unable to drop column, as there are duplicate event ids")
|
|
}
|
|
_, err = tx.ExecContext(ctx, `ALTER TABLE roomserver_events DROP COLUMN reference_sha256;`)
|
|
if err != nil {
|
|
return fmt.Errorf("failed to execute upgrade: %w", err)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func UpDropEventReferenceSHAPrevEvents(ctx context.Context, tx *sql.Tx) error {
|
|
// rename the table
|
|
if _, err := tx.ExecContext(ctx, `ALTER TABLE roomserver_previous_events RENAME TO _roomserver_previous_events;`); err != nil {
|
|
return fmt.Errorf("tx.ExecContext: %w", err)
|
|
}
|
|
|
|
// create new table
|
|
if _, err := tx.ExecContext(ctx, `CREATE TABLE IF NOT EXISTS roomserver_previous_events (
|
|
previous_event_id TEXT NOT NULL,
|
|
event_nids TEXT NOT NULL,
|
|
UNIQUE (previous_event_id)
|
|
);`); err != nil {
|
|
return fmt.Errorf("tx.ExecContext: %w", err)
|
|
}
|
|
|
|
// move data
|
|
if _, err := tx.ExecContext(ctx, `
|
|
INSERT
|
|
INTO roomserver_previous_events (
|
|
previous_event_id, event_nids
|
|
) SELECT
|
|
previous_event_id, event_nids
|
|
FROM _roomserver_previous_events
|
|
;`); err != nil {
|
|
return fmt.Errorf("tx.ExecContext: %w", err)
|
|
}
|
|
// drop old table
|
|
_, err := tx.ExecContext(ctx, `DROP TABLE _roomserver_previous_events;`)
|
|
if err != nil {
|
|
return fmt.Errorf("failed to execute upgrade: %w", err)
|
|
}
|
|
return nil
|
|
}
|