blob: b30f6362a2c59fc1f2832958a8fdcc589081e009 [file] [log] [blame]
// Copyright 2021 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
namespace storage {
class QuotaDatabase;
// Helper class of QuotaDatabase which handles the QuotaManager SQL database
// schema migrations. Any change that requires a change in the schema version
// and adds new tables, columns, or modifies existing data should have a
// migration to avoid data loss.
// QuotaDatabaseMigrations is a friended class of QuotaDatabase and updates the
// existing SQL QuotaManager database owned by the QuotaDatabase class.
class QuotaDatabaseMigrations {
// Upgrades the SQL database owned by `quota_database` to the latest schema,
// and updates the sql::MetaTable version accordingly.
static bool UpgradeSchema(QuotaDatabase& quota_database);
static bool MigrateFromVersion5ToVersion7(QuotaDatabase& quota_database);
static bool MigrateFromVersion6ToVersion7(QuotaDatabase& quota_database);
} // namespace storage