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577d50b512
this is better design wise as we won't have to keep checking if the indices have been migrated or not. We'll just check the database version and do the appropriate migrations based on that.
66 lines
2.1 KiB
JavaScript
66 lines
2.1 KiB
JavaScript
/*
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This file is part of the Notesnook project (https://notesnook.com/)
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Copyright (C) 2022 Streetwriters (Private) Limited
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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import { migrateCollection, migrateItem } from "../migrations";
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class Migrator {
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async migrate(db, collections, get, version) {
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for (let collection of collections) {
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if (!collection.index || !collection.dbCollection) continue;
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await migrateCollection(collection.dbCollection, version);
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const index = (await collection.index()) || [];
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for (var i = 0; i < index.length; ++i) {
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let id = index[i];
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let item = get(id);
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if (!item) {
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continue;
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}
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// check if item is permanently deleted or just a soft delete
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if (item.deleted && !item.type) {
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await collection.dbCollection?._collection?.addItem(item);
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continue;
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}
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const itemId = item.id;
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item = await migrateItem(
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item,
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version,
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item.type || collection.type || collection.dbCollection.type,
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db
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);
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if (collection.dbCollection.merge) {
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await collection.dbCollection.merge(item);
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} else if (collection.dbCollection.add) {
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await collection.dbCollection.add(item);
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}
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// if id changed after migration, we need to delete the old one.
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if (item.id !== itemId) {
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await collection.dbCollection?._collection?.deleteItem(itemId);
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}
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}
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}
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return true;
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}
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}
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export default Migrator;
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