Generic database (#600)
* Update test * Rename db to _db * Create GenericDatabase class * Catch prepare error * Allow database to be purged even if it was not open * Remove unused functions * Change static functions to non-static * Delete and count using the media object store * Update tests
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@ -30,6 +30,7 @@
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<script src="/bg/js/audio-uri-builder.js"></script>
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<script src="/bg/js/clipboard-monitor.js"></script>
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<script src="/bg/js/conditions.js"></script>
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<script src="/bg/js/generic-database.js"></script>
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<script src="/bg/js/database.js"></script>
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<script src="/bg/js/dictionary-importer.js"></script>
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<script src="/bg/js/deinflector.js"></script>
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@ -172,7 +172,11 @@ class Backend {
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yomichan.on('log', this._onLog.bind(this));
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await this.environment.prepare();
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await this.database.prepare();
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try {
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await this.database.prepare();
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} catch (e) {
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yomichan.logError(e);
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}
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await this.translator.prepare();
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await profileConditionsDescriptorPromise;
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@ -16,423 +16,422 @@
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*/
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/* global
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* GenericDatabase
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* dictFieldSplit
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*/
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class Database {
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constructor() {
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this.db = null;
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this._db = new GenericDatabase();
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this._dbName = 'dict';
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this._schemas = new Map();
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}
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// Public
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async prepare() {
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if (this.db !== null) {
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throw new Error('Database already initialized');
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}
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try {
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this.db = await Database._open('dict', 6, (db, transaction, oldVersion) => {
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Database._upgrade(db, transaction, oldVersion, [
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{
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version: 2,
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stores: {
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terms: {
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primaryKey: {keyPath: 'id', autoIncrement: true},
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indices: ['dictionary', 'expression', 'reading']
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},
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kanji: {
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primaryKey: {autoIncrement: true},
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indices: ['dictionary', 'character']
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},
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tagMeta: {
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primaryKey: {autoIncrement: true},
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indices: ['dictionary']
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},
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dictionaries: {
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primaryKey: {autoIncrement: true},
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indices: ['title', 'version']
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}
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}
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},
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{
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version: 3,
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stores: {
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termMeta: {
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primaryKey: {autoIncrement: true},
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indices: ['dictionary', 'expression']
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},
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kanjiMeta: {
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primaryKey: {autoIncrement: true},
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indices: ['dictionary', 'character']
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},
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tagMeta: {
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primaryKey: {autoIncrement: true},
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indices: ['dictionary', 'name']
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}
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}
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},
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{
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version: 4,
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stores: {
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terms: {
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primaryKey: {keyPath: 'id', autoIncrement: true},
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indices: ['dictionary', 'expression', 'reading', 'sequence']
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}
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}
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},
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{
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version: 5,
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stores: {
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terms: {
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primaryKey: {keyPath: 'id', autoIncrement: true},
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indices: ['dictionary', 'expression', 'reading', 'sequence', 'expressionReverse', 'readingReverse']
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}
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}
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},
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{
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version: 6,
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stores: {
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media: {
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primaryKey: {keyPath: 'id', autoIncrement: true},
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indices: ['dictionary', 'path']
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}
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await this._db.open(
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this._dbName,
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60,
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[
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{
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version: 20,
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stores: {
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terms: {
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primaryKey: {keyPath: 'id', autoIncrement: true},
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indices: ['dictionary', 'expression', 'reading']
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},
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kanji: {
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primaryKey: {autoIncrement: true},
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indices: ['dictionary', 'character']
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},
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tagMeta: {
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primaryKey: {autoIncrement: true},
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indices: ['dictionary']
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},
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dictionaries: {
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primaryKey: {autoIncrement: true},
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indices: ['title', 'version']
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}
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}
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]);
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});
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return true;
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} catch (e) {
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yomichan.logError(e);
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return false;
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}
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},
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{
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version: 30,
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stores: {
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termMeta: {
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primaryKey: {autoIncrement: true},
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indices: ['dictionary', 'expression']
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},
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kanjiMeta: {
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primaryKey: {autoIncrement: true},
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indices: ['dictionary', 'character']
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},
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tagMeta: {
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primaryKey: {autoIncrement: true},
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indices: ['dictionary', 'name']
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}
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}
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},
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{
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version: 40,
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stores: {
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terms: {
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primaryKey: {keyPath: 'id', autoIncrement: true},
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indices: ['dictionary', 'expression', 'reading', 'sequence']
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}
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}
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},
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{
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version: 50,
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stores: {
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terms: {
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primaryKey: {keyPath: 'id', autoIncrement: true},
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indices: ['dictionary', 'expression', 'reading', 'sequence', 'expressionReverse', 'readingReverse']
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}
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}
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},
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{
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version: 60,
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stores: {
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media: {
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primaryKey: {keyPath: 'id', autoIncrement: true},
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indices: ['dictionary', 'path']
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}
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}
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}
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]
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);
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}
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async close() {
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this._validate();
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this.db.close();
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this.db = null;
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this._db.close();
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}
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isPrepared() {
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return this.db !== null;
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return this._db.isOpen();
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}
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async purge() {
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this._validate();
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this.db.close();
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await Database._deleteDatabase(this.db.name);
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this.db = null;
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if (this._db.isOpening()) {
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throw new Error('Cannot purge database while opening');
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}
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if (this._db.isOpen()) {
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this._db.close();
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}
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await GenericDatabase.deleteDatabase(this._dbName);
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await this.prepare();
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}
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async deleteDictionary(dictionaryName, progressSettings, onProgress) {
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this._validate();
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const targets = [
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['dictionaries', 'title'],
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['kanji', 'dictionary'],
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['kanjiMeta', 'dictionary'],
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['terms', 'dictionary'],
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['termMeta', 'dictionary'],
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['tagMeta', 'dictionary']
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['tagMeta', 'dictionary'],
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['media', 'dictionary']
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];
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const promises = [];
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const {rate} = progressSettings;
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const progressData = {
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count: 0,
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processed: 0,
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storeCount: targets.length,
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storesProcesed: 0
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};
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let progressRate = (typeof progressSettings === 'object' && progressSettings !== null ? progressSettings.rate : 0);
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if (typeof progressRate !== 'number' || progressRate <= 0) {
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progressRate = 1000;
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}
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for (const [objectStoreName, index] of targets) {
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const dbTransaction = this.db.transaction([objectStoreName], 'readwrite');
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const dbObjectStore = dbTransaction.objectStore(objectStoreName);
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const dbIndex = dbObjectStore.index(index);
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const only = IDBKeyRange.only(dictionaryName);
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promises.push(Database._deleteValues(dbObjectStore, dbIndex, only, onProgress, progressData, progressRate));
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}
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await Promise.all(promises);
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}
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async findTermsBulk(termList, dictionaries, wildcard) {
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this._validate();
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const promises = [];
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const visited = new Set();
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const results = [];
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const processRow = (row, index) => {
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if (dictionaries.has(row.dictionary) && !visited.has(row.id)) {
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visited.add(row.id);
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results.push(Database._createTerm(row, index));
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const filterKeys = (keys) => {
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++progressData.storesProcesed;
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progressData.count += keys.length;
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onProgress(progressData);
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return keys;
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};
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const onProgress2 = () => {
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const processed = progressData.processed + 1;
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progressData.processed = processed;
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if ((processed % rate) === 0 || processed === progressData.count) {
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onProgress(progressData);
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}
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};
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const useWildcard = !!wildcard;
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const prefixWildcard = wildcard === 'prefix';
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const dbTransaction = this.db.transaction(['terms'], 'readonly');
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const dbTerms = dbTransaction.objectStore('terms');
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const dbIndex1 = dbTerms.index(prefixWildcard ? 'expressionReverse' : 'expression');
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const dbIndex2 = dbTerms.index(prefixWildcard ? 'readingReverse' : 'reading');
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for (let i = 0; i < termList.length; ++i) {
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const term = prefixWildcard ? stringReverse(termList[i]) : termList[i];
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const query = useWildcard ? IDBKeyRange.bound(term, `${term}\uffff`, false, false) : IDBKeyRange.only(term);
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promises.push(
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Database._getAll(dbIndex1, query, i, processRow),
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Database._getAll(dbIndex2, query, i, processRow)
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);
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}
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await Promise.all(promises);
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return results;
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}
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async findTermsExactBulk(termList, readingList, dictionaries) {
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this._validate();
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const promises = [];
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const results = [];
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const processRow = (row, index) => {
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if (row.reading === readingList[index] && dictionaries.has(row.dictionary)) {
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results.push(Database._createTerm(row, index));
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}
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};
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const dbTransaction = this.db.transaction(['terms'], 'readonly');
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const dbTerms = dbTransaction.objectStore('terms');
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const dbIndex = dbTerms.index('expression');
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for (let i = 0; i < termList.length; ++i) {
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const only = IDBKeyRange.only(termList[i]);
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promises.push(Database._getAll(dbIndex, only, i, processRow));
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for (const [objectStoreName, indexName] of targets) {
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const query = IDBKeyRange.only(dictionaryName);
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const promise = this._db.bulkDelete(objectStoreName, indexName, query, filterKeys, onProgress2);
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promises.push(promise);
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}
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await Promise.all(promises);
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return results;
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}
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async findTermsBySequenceBulk(sequenceList, mainDictionary) {
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this._validate();
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const promises = [];
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const results = [];
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const processRow = (row, index) => {
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if (row.dictionary === mainDictionary) {
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results.push(Database._createTerm(row, index));
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}
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};
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const dbTransaction = this.db.transaction(['terms'], 'readonly');
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const dbTerms = dbTransaction.objectStore('terms');
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const dbIndex = dbTerms.index('sequence');
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for (let i = 0; i < sequenceList.length; ++i) {
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const only = IDBKeyRange.only(sequenceList[i]);
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promises.push(Database._getAll(dbIndex, only, i, processRow));
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}
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await Promise.all(promises);
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return results;
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}
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async findTermMetaBulk(termList, dictionaries) {
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return this._findGenericBulk('termMeta', 'expression', termList, dictionaries, Database._createTermMeta);
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}
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async findKanjiBulk(kanjiList, dictionaries) {
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return this._findGenericBulk('kanji', 'character', kanjiList, dictionaries, Database._createKanji);
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}
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async findKanjiMetaBulk(kanjiList, dictionaries) {
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return this._findGenericBulk('kanjiMeta', 'character', kanjiList, dictionaries, Database._createKanjiMeta);
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}
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async findTagForTitle(name, title) {
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this._validate();
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let result = null;
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const dbTransaction = this.db.transaction(['tagMeta'], 'readonly');
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const dbTerms = dbTransaction.objectStore('tagMeta');
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const dbIndex = dbTerms.index('name');
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const only = IDBKeyRange.only(name);
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await Database._getAll(dbIndex, only, null, (row) => {
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if (title === row.dictionary) {
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result = row;
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}
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});
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return result;
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}
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async getMedia(targets) {
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this._validate();
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const count = targets.length;
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const promises = [];
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const results = new Array(count).fill(null);
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const createResult = Database._createMedia;
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const processRow = (row, [index, dictionaryName]) => {
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if (row.dictionary === dictionaryName) {
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results[index] = createResult(row, index);
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}
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};
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const transaction = this.db.transaction(['media'], 'readonly');
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const objectStore = transaction.objectStore('media');
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const index = objectStore.index('path');
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for (let i = 0; i < count; ++i) {
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const {path, dictionaryName} = targets[i];
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const only = IDBKeyRange.only(path);
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promises.push(Database._getAll(index, only, [i, dictionaryName], processRow));
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}
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await Promise.all(promises);
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return results;
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}
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async getDictionaryInfo() {
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this._validate();
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const results = [];
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const dbTransaction = this.db.transaction(['dictionaries'], 'readonly');
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const dbDictionaries = dbTransaction.objectStore('dictionaries');
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await Database._getAll(dbDictionaries, null, null, (info) => results.push(info));
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return results;
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}
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async getDictionaryCounts(dictionaryNames, getTotal) {
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this._validate();
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const objectStoreNames = [
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'kanji',
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'kanjiMeta',
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'terms',
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'termMeta',
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'tagMeta'
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];
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const dbCountTransaction = this.db.transaction(objectStoreNames, 'readonly');
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const targets = [];
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for (const objectStoreName of objectStoreNames) {
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targets.push([
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objectStoreName,
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dbCountTransaction.objectStore(objectStoreName).index('dictionary')
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]);
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}
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// Query is required for Edge, otherwise index.count throws an exception.
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const query1 = IDBKeyRange.lowerBound('', false);
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const totalPromise = getTotal ? Database._getCounts(targets, query1) : null;
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const counts = [];
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const countPromises = [];
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for (let i = 0; i < dictionaryNames.length; ++i) {
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counts.push(null);
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const index = i;
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const query2 = IDBKeyRange.only(dictionaryNames[i]);
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const countPromise = Database._getCounts(targets, query2).then((v) => counts[index] = v);
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countPromises.push(countPromise);
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}
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await Promise.all(countPromises);
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const result = {counts};
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if (totalPromise !== null) {
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result.total = await totalPromise;
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}
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return result;
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}
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async dictionaryExists(title) {
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this._validate();
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const transaction = this.db.transaction(['dictionaries'], 'readonly');
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const index = transaction.objectStore('dictionaries').index('title');
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const query = IDBKeyRange.only(title);
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const count = await Database._getCount(index, query);
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return count > 0;
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}
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bulkAdd(objectStoreName, items, start, count) {
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findTermsBulk(termList, dictionaries, wildcard) {
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return new Promise((resolve, reject) => {
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const transaction = this.db.transaction([objectStoreName], 'readwrite');
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const objectStore = transaction.objectStore(objectStoreName);
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if (start + count > items.length) {
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count = items.length - start;
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}
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if (count <= 0) {
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resolve();
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const results = [];
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const count = termList.length;
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if (count === 0) {
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resolve(results);
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return;
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}
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const end = start + count;
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let completedCount = 0;
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const onError = (e) => reject(e);
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const onSuccess = () => {
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if (++completedCount >= count) {
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resolve();
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}
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};
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const visited = new Set();
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const useWildcard = !!wildcard;
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const prefixWildcard = wildcard === 'prefix';
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for (let i = start; i < end; ++i) {
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const request = objectStore.add(items[i]);
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request.onerror = onError;
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request.onsuccess = onSuccess;
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const transaction = this._db.transaction(['terms'], 'readonly');
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const terms = transaction.objectStore('terms');
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const index1 = terms.index(prefixWildcard ? 'expressionReverse' : 'expression');
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const index2 = terms.index(prefixWildcard ? 'readingReverse' : 'reading');
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const count2 = count * 2;
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let completeCount = 0;
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for (let i = 0; i < count; ++i) {
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const inputIndex = i;
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const term = prefixWildcard ? stringReverse(termList[i]) : termList[i];
|
||||
const query = useWildcard ? IDBKeyRange.bound(term, `${term}\uffff`, false, false) : IDBKeyRange.only(term);
|
||||
|
||||
const onGetAll = (rows) => {
|
||||
for (const row of rows) {
|
||||
if (dictionaries.has(row.dictionary) && !visited.has(row.id)) {
|
||||
visited.add(row.id);
|
||||
results.push(this._createTerm(row, inputIndex));
|
||||
}
|
||||
}
|
||||
if (++completeCount >= count2) {
|
||||
resolve(results);
|
||||
}
|
||||
};
|
||||
|
||||
this._db.getAll(index1, query, onGetAll, reject);
|
||||
this._db.getAll(index2, query, onGetAll, reject);
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
findTermsExactBulk(termList, readingList, dictionaries) {
|
||||
return new Promise((resolve, reject) => {
|
||||
const results = [];
|
||||
const count = termList.length;
|
||||
if (count === 0) {
|
||||
resolve(results);
|
||||
return;
|
||||
}
|
||||
|
||||
const transaction = this._db.transaction(['terms'], 'readonly');
|
||||
const terms = transaction.objectStore('terms');
|
||||
const index = terms.index('expression');
|
||||
|
||||
let completeCount = 0;
|
||||
for (let i = 0; i < count; ++i) {
|
||||
const inputIndex = i;
|
||||
const reading = readingList[i];
|
||||
const query = IDBKeyRange.only(termList[i]);
|
||||
|
||||
const onGetAll = (rows) => {
|
||||
for (const row of rows) {
|
||||
if (row.reading === reading && dictionaries.has(row.dictionary)) {
|
||||
results.push(this._createTerm(row, inputIndex));
|
||||
}
|
||||
}
|
||||
if (++completeCount >= count) {
|
||||
resolve(results);
|
||||
}
|
||||
};
|
||||
|
||||
this._db.getAll(index, query, onGetAll, reject);
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
findTermsBySequenceBulk(sequenceList, mainDictionary) {
|
||||
return new Promise((resolve, reject) => {
|
||||
const results = [];
|
||||
const count = sequenceList.length;
|
||||
if (count === 0) {
|
||||
resolve(results);
|
||||
return;
|
||||
}
|
||||
|
||||
const transaction = this._db.transaction(['terms'], 'readonly');
|
||||
const terms = transaction.objectStore('terms');
|
||||
const index = terms.index('sequence');
|
||||
|
||||
let completeCount = 0;
|
||||
for (let i = 0; i < count; ++i) {
|
||||
const inputIndex = i;
|
||||
const query = IDBKeyRange.only(sequenceList[i]);
|
||||
|
||||
const onGetAll = (rows) => {
|
||||
for (const row of rows) {
|
||||
if (row.dictionary === mainDictionary) {
|
||||
results.push(this._createTerm(row, inputIndex));
|
||||
}
|
||||
}
|
||||
if (++completeCount >= count) {
|
||||
resolve(results);
|
||||
}
|
||||
};
|
||||
|
||||
this._db.getAll(index, query, onGetAll, reject);
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
findTermMetaBulk(termList, dictionaries) {
|
||||
return this._findGenericBulk('termMeta', 'expression', termList, dictionaries, this._createTermMeta.bind(this));
|
||||
}
|
||||
|
||||
findKanjiBulk(kanjiList, dictionaries) {
|
||||
return this._findGenericBulk('kanji', 'character', kanjiList, dictionaries, this._createKanji.bind(this));
|
||||
}
|
||||
|
||||
findKanjiMetaBulk(kanjiList, dictionaries) {
|
||||
return this._findGenericBulk('kanjiMeta', 'character', kanjiList, dictionaries, this._createKanjiMeta.bind(this));
|
||||
}
|
||||
|
||||
findTagForTitle(name, title) {
|
||||
const query = IDBKeyRange.only(name);
|
||||
return this._db.find('tagMeta', 'name', query, (row) => (row.dictionary === title), null);
|
||||
}
|
||||
|
||||
getMedia(targets) {
|
||||
return new Promise((resolve, reject) => {
|
||||
const count = targets.length;
|
||||
const results = new Array(count).fill(null);
|
||||
if (count === 0) {
|
||||
resolve(results);
|
||||
return;
|
||||
}
|
||||
|
||||
let completeCount = 0;
|
||||
const transaction = this._db.transaction(['media'], 'readonly');
|
||||
const objectStore = transaction.objectStore('media');
|
||||
const index = objectStore.index('path');
|
||||
|
||||
for (let i = 0; i < count; ++i) {
|
||||
const inputIndex = i;
|
||||
const {path, dictionaryName} = targets[i];
|
||||
const query = IDBKeyRange.only(path);
|
||||
|
||||
const onGetAll = (rows) => {
|
||||
for (const row of rows) {
|
||||
if (row.dictionary !== dictionaryName) { continue; }
|
||||
results[inputIndex] = this._createMedia(row, inputIndex);
|
||||
}
|
||||
if (++completeCount >= count) {
|
||||
resolve(results);
|
||||
}
|
||||
};
|
||||
|
||||
this._db.getAll(index, query, onGetAll, reject);
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
getDictionaryInfo() {
|
||||
return new Promise((resolve, reject) => {
|
||||
const transaction = this._db.transaction(['dictionaries'], 'readonly');
|
||||
const objectStore = transaction.objectStore('dictionaries');
|
||||
this._db.getAll(objectStore, null, resolve, reject);
|
||||
});
|
||||
}
|
||||
|
||||
getDictionaryCounts(dictionaryNames, getTotal) {
|
||||
return new Promise((resolve, reject) => {
|
||||
const targets = [
|
||||
['kanji', 'dictionary'],
|
||||
['kanjiMeta', 'dictionary'],
|
||||
['terms', 'dictionary'],
|
||||
['termMeta', 'dictionary'],
|
||||
['tagMeta', 'dictionary'],
|
||||
['media', 'dictionary']
|
||||
];
|
||||
const objectStoreNames = targets.map(([objectStoreName]) => objectStoreName);
|
||||
const transaction = this._db.transaction(objectStoreNames, 'readonly');
|
||||
const databaseTargets = targets.map(([objectStoreName, indexName]) => {
|
||||
const objectStore = transaction.objectStore(objectStoreName);
|
||||
const index = objectStore.index(indexName);
|
||||
return {objectStore, index};
|
||||
});
|
||||
|
||||
const countTargets = [];
|
||||
if (getTotal) {
|
||||
for (const {objectStore} of databaseTargets) {
|
||||
countTargets.push([objectStore, null]);
|
||||
}
|
||||
}
|
||||
for (const dictionaryName of dictionaryNames) {
|
||||
const query = IDBKeyRange.only(dictionaryName);
|
||||
for (const {index} of databaseTargets) {
|
||||
countTargets.push([index, query]);
|
||||
}
|
||||
}
|
||||
|
||||
const onCountComplete = (results) => {
|
||||
const resultCount = results.length;
|
||||
const targetCount = targets.length;
|
||||
const counts = [];
|
||||
for (let i = 0; i < resultCount; i += targetCount) {
|
||||
const countGroup = {};
|
||||
for (let j = 0; j < targetCount; ++j) {
|
||||
countGroup[targets[j][0]] = results[i + j];
|
||||
}
|
||||
counts.push(countGroup);
|
||||
}
|
||||
const total = getTotal ? counts.shift() : null;
|
||||
resolve({total, counts});
|
||||
};
|
||||
|
||||
this._db.bulkCount(countTargets, onCountComplete, reject);
|
||||
});
|
||||
}
|
||||
|
||||
async dictionaryExists(title) {
|
||||
const query = IDBKeyRange.only(title);
|
||||
const result = await this._db.find('dictionaries', 'title', query);
|
||||
return typeof result !== 'undefined';
|
||||
}
|
||||
|
||||
bulkAdd(objectStoreName, items, start, count) {
|
||||
return this._db.bulkAdd(objectStoreName, items, start, count);
|
||||
}
|
||||
|
||||
// Private
|
||||
|
||||
_validate() {
|
||||
if (this.db === null) {
|
||||
throw new Error('Database not initialized');
|
||||
}
|
||||
}
|
||||
|
||||
async _findGenericBulk(tableName, indexName, indexValueList, dictionaries, createResult) {
|
||||
this._validate();
|
||||
|
||||
const promises = [];
|
||||
const results = [];
|
||||
const processRow = (row, index) => {
|
||||
if (dictionaries.has(row.dictionary)) {
|
||||
results.push(createResult(row, index));
|
||||
async _findGenericBulk(objectStoreName, indexName, indexValueList, dictionaries, createResult) {
|
||||
return new Promise((resolve, reject) => {
|
||||
const results = [];
|
||||
const count = indexValueList.length;
|
||||
if (count === 0) {
|
||||
resolve(results);
|
||||
return;
|
||||
}
|
||||
};
|
||||
|
||||
const dbTransaction = this.db.transaction([tableName], 'readonly');
|
||||
const dbTerms = dbTransaction.objectStore(tableName);
|
||||
const dbIndex = dbTerms.index(indexName);
|
||||
const transaction = this._db.transaction([objectStoreName], 'readonly');
|
||||
const terms = transaction.objectStore(objectStoreName);
|
||||
const index = terms.index(indexName);
|
||||
|
||||
for (let i = 0; i < indexValueList.length; ++i) {
|
||||
const only = IDBKeyRange.only(indexValueList[i]);
|
||||
promises.push(Database._getAll(dbIndex, only, i, processRow));
|
||||
}
|
||||
let completeCount = 0;
|
||||
for (let i = 0; i < count; ++i) {
|
||||
const inputIndex = i;
|
||||
const query = IDBKeyRange.only(indexValueList[i]);
|
||||
|
||||
await Promise.all(promises);
|
||||
const onGetAll = (rows) => {
|
||||
for (const row of rows) {
|
||||
if (dictionaries.has(row.dictionary)) {
|
||||
results.push(createResult(row, inputIndex));
|
||||
}
|
||||
}
|
||||
if (++completeCount >= count) {
|
||||
resolve(results);
|
||||
}
|
||||
};
|
||||
|
||||
return results;
|
||||
this._db.getAll(index, query, onGetAll, reject);
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
static _createTerm(row, index) {
|
||||
_createTerm(row, index) {
|
||||
return {
|
||||
index,
|
||||
expression: row.expression,
|
||||
@ -448,7 +447,7 @@ class Database {
|
||||
};
|
||||
}
|
||||
|
||||
static _createKanji(row, index) {
|
||||
_createKanji(row, index) {
|
||||
return {
|
||||
index,
|
||||
character: row.character,
|
||||
@ -461,193 +460,15 @@ class Database {
|
||||
};
|
||||
}
|
||||
|
||||
static _createTermMeta({expression, mode, data, dictionary}, index) {
|
||||
_createTermMeta({expression, mode, data, dictionary}, index) {
|
||||
return {expression, mode, data, dictionary, index};
|
||||
}
|
||||
|
||||
static _createKanjiMeta({character, mode, data, dictionary}, index) {
|
||||
_createKanjiMeta({character, mode, data, dictionary}, index) {
|
||||
return {character, mode, data, dictionary, index};
|
||||
}
|
||||
|
||||
static _createMedia(row, index) {
|
||||
_createMedia(row, index) {
|
||||
return Object.assign({}, row, {index});
|
||||
}
|
||||
|
||||
static _getAll(dbIndex, query, context, processRow) {
|
||||
const fn = typeof dbIndex.getAll === 'function' ? Database._getAllFast : Database._getAllUsingCursor;
|
||||
return fn(dbIndex, query, context, processRow);
|
||||
}
|
||||
|
||||
static _getAllFast(dbIndex, query, context, processRow) {
|
||||
return new Promise((resolve, reject) => {
|
||||
const request = dbIndex.getAll(query);
|
||||
request.onerror = (e) => reject(e);
|
||||
request.onsuccess = (e) => {
|
||||
for (const row of e.target.result) {
|
||||
processRow(row, context);
|
||||
}
|
||||
resolve();
|
||||
};
|
||||
});
|
||||
}
|
||||
|
||||
static _getAllUsingCursor(dbIndex, query, context, processRow) {
|
||||
return new Promise((resolve, reject) => {
|
||||
const request = dbIndex.openCursor(query, 'next');
|
||||
request.onerror = (e) => reject(e);
|
||||
request.onsuccess = (e) => {
|
||||
const cursor = e.target.result;
|
||||
if (cursor) {
|
||||
processRow(cursor.value, context);
|
||||
cursor.continue();
|
||||
} else {
|
||||
resolve();
|
||||
}
|
||||
};
|
||||
});
|
||||
}
|
||||
|
||||
static _getCounts(targets, query) {
|
||||
const countPromises = [];
|
||||
const counts = {};
|
||||
for (const [objectStoreName, index] of targets) {
|
||||
const n = objectStoreName;
|
||||
const countPromise = Database._getCount(index, query).then((count) => counts[n] = count);
|
||||
countPromises.push(countPromise);
|
||||
}
|
||||
return Promise.all(countPromises).then(() => counts);
|
||||
}
|
||||
|
||||
static _getCount(dbIndex, query) {
|
||||
return new Promise((resolve, reject) => {
|
||||
const request = dbIndex.count(query);
|
||||
request.onerror = (e) => reject(e);
|
||||
request.onsuccess = (e) => resolve(e.target.result);
|
||||
});
|
||||
}
|
||||
|
||||
static _getAllKeys(dbIndex, query) {
|
||||
const fn = typeof dbIndex.getAllKeys === 'function' ? Database._getAllKeysFast : Database._getAllKeysUsingCursor;
|
||||
return fn(dbIndex, query);
|
||||
}
|
||||
|
||||
static _getAllKeysFast(dbIndex, query) {
|
||||
return new Promise((resolve, reject) => {
|
||||
const request = dbIndex.getAllKeys(query);
|
||||
request.onerror = (e) => reject(e);
|
||||
request.onsuccess = (e) => resolve(e.target.result);
|
||||
});
|
||||
}
|
||||
|
||||
static _getAllKeysUsingCursor(dbIndex, query) {
|
||||
return new Promise((resolve, reject) => {
|
||||
const primaryKeys = [];
|
||||
const request = dbIndex.openKeyCursor(query, 'next');
|
||||
request.onerror = (e) => reject(e);
|
||||
request.onsuccess = (e) => {
|
||||
const cursor = e.target.result;
|
||||
if (cursor) {
|
||||
primaryKeys.push(cursor.primaryKey);
|
||||
cursor.continue();
|
||||
} else {
|
||||
resolve(primaryKeys);
|
||||
}
|
||||
};
|
||||
});
|
||||
}
|
||||
|
||||
static async _deleteValues(dbObjectStore, dbIndex, query, onProgress, progressData, progressRate) {
|
||||
const hasProgress = (typeof onProgress === 'function');
|
||||
const count = await Database._getCount(dbIndex, query);
|
||||
++progressData.storesProcesed;
|
||||
progressData.count += count;
|
||||
if (hasProgress) {
|
||||
onProgress(progressData);
|
||||
}
|
||||
|
||||
const onValueDeleted = (
|
||||
hasProgress ?
|
||||
() => {
|
||||
const p = ++progressData.processed;
|
||||
if ((p % progressRate) === 0 || p === progressData.count) {
|
||||
onProgress(progressData);
|
||||
}
|
||||
} :
|
||||
() => {}
|
||||
);
|
||||
|
||||
const promises = [];
|
||||
const primaryKeys = await Database._getAllKeys(dbIndex, query);
|
||||
for (const key of primaryKeys) {
|
||||
const promise = Database._deleteValue(dbObjectStore, key).then(onValueDeleted);
|
||||
promises.push(promise);
|
||||
}
|
||||
|
||||
await Promise.all(promises);
|
||||
}
|
||||
|
||||
static _deleteValue(dbObjectStore, key) {
|
||||
return new Promise((resolve, reject) => {
|
||||
const request = dbObjectStore.delete(key);
|
||||
request.onerror = (e) => reject(e);
|
||||
request.onsuccess = () => resolve();
|
||||
});
|
||||
}
|
||||
|
||||
static _open(name, version, onUpgradeNeeded) {
|
||||
return new Promise((resolve, reject) => {
|
||||
const request = indexedDB.open(name, version * 10);
|
||||
|
||||
request.onupgradeneeded = (event) => {
|
||||
try {
|
||||
request.transaction.onerror = (e) => reject(e);
|
||||
onUpgradeNeeded(request.result, request.transaction, event.oldVersion / 10, event.newVersion / 10);
|
||||
} catch (e) {
|
||||
reject(e);
|
||||
}
|
||||
};
|
||||
|
||||
request.onerror = (e) => reject(e);
|
||||
request.onsuccess = () => resolve(request.result);
|
||||
});
|
||||
}
|
||||
|
||||
static _upgrade(db, transaction, oldVersion, upgrades) {
|
||||
for (const {version, stores} of upgrades) {
|
||||
if (oldVersion >= version) { continue; }
|
||||
|
||||
const objectStoreNames = Object.keys(stores);
|
||||
for (const objectStoreName of objectStoreNames) {
|
||||
const {primaryKey, indices} = stores[objectStoreName];
|
||||
|
||||
const objectStoreNames2 = transaction.objectStoreNames || db.objectStoreNames;
|
||||
const objectStore = (
|
||||
Database._listContains(objectStoreNames2, objectStoreName) ?
|
||||
transaction.objectStore(objectStoreName) :
|
||||
db.createObjectStore(objectStoreName, primaryKey)
|
||||
);
|
||||
|
||||
for (const indexName of indices) {
|
||||
if (Database._listContains(objectStore.indexNames, indexName)) { continue; }
|
||||
|
||||
objectStore.createIndex(indexName, indexName, {});
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static _deleteDatabase(dbName) {
|
||||
return new Promise((resolve, reject) => {
|
||||
const request = indexedDB.deleteDatabase(dbName);
|
||||
request.onerror = (e) => reject(e);
|
||||
request.onsuccess = () => resolve();
|
||||
});
|
||||
}
|
||||
|
||||
static _listContains(list, value) {
|
||||
for (let i = 0, ii = list.length; i < ii; ++i) {
|
||||
if (list[i] === value) { return true; }
|
||||
}
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
327
ext/bg/js/generic-database.js
Normal file
327
ext/bg/js/generic-database.js
Normal file
@ -0,0 +1,327 @@
|
||||
/*
|
||||
* Copyright (C) 2020 Yomichan Authors
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify
|
||||
* it under the terms of the GNU 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 General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
class GenericDatabase {
|
||||
constructor() {
|
||||
this._db = null;
|
||||
this._isOpening = false;
|
||||
}
|
||||
|
||||
// Public
|
||||
|
||||
async open(databaseName, version, structure) {
|
||||
if (this._db !== null) {
|
||||
throw new Error('Database already open');
|
||||
}
|
||||
if (this._isOpening) {
|
||||
throw new Error('Already opening');
|
||||
}
|
||||
|
||||
try {
|
||||
this._isOpening = true;
|
||||
this._db = await this._open(databaseName, version, (db, transaction, oldVersion) => {
|
||||
this._upgrade(db, transaction, oldVersion, structure);
|
||||
});
|
||||
} finally {
|
||||
this._isOpening = false;
|
||||
}
|
||||
}
|
||||
|
||||
close() {
|
||||
if (this._db === null) {
|
||||
throw new Error('Database is not open');
|
||||
}
|
||||
|
||||
this._db.close();
|
||||
this._db = null;
|
||||
}
|
||||
|
||||
isOpening() {
|
||||
return this._isOpening;
|
||||
}
|
||||
|
||||
isOpen() {
|
||||
return this._db !== null;
|
||||
}
|
||||
|
||||
transaction(storeNames, mode) {
|
||||
if (this._db === null) {
|
||||
throw new Error(this._isOpening ? 'Database not ready' : 'Database not open');
|
||||
}
|
||||
return this._db.transaction(storeNames, mode);
|
||||
}
|
||||
|
||||
bulkAdd(objectStoreName, items, start, count) {
|
||||
return new Promise((resolve, reject) => {
|
||||
if (start + count > items.length) {
|
||||
count = items.length - start;
|
||||
}
|
||||
|
||||
if (count <= 0) {
|
||||
resolve();
|
||||
return;
|
||||
}
|
||||
|
||||
const end = start + count;
|
||||
let completedCount = 0;
|
||||
const onError = (e) => reject(e.target.error);
|
||||
const onSuccess = () => {
|
||||
if (++completedCount >= count) {
|
||||
resolve();
|
||||
}
|
||||
};
|
||||
|
||||
const transaction = this.transaction([objectStoreName], 'readwrite');
|
||||
const objectStore = transaction.objectStore(objectStoreName);
|
||||
for (let i = start; i < end; ++i) {
|
||||
const request = objectStore.add(items[i]);
|
||||
request.onerror = onError;
|
||||
request.onsuccess = onSuccess;
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
getAll(objectStoreOrIndex, query, resolve, reject) {
|
||||
if (typeof objectStoreOrIndex.getAll === 'function') {
|
||||
this._getAllFast(objectStoreOrIndex, query, resolve, reject);
|
||||
} else {
|
||||
this._getAllUsingCursor(objectStoreOrIndex, query, resolve, reject);
|
||||
}
|
||||
}
|
||||
|
||||
getAllKeys(objectStoreOrIndex, query, resolve, reject) {
|
||||
if (typeof objectStoreOrIndex.getAll === 'function') {
|
||||
this._getAllKeysFast(objectStoreOrIndex, query, resolve, reject);
|
||||
} else {
|
||||
this._getAllKeysUsingCursor(objectStoreOrIndex, query, resolve, reject);
|
||||
}
|
||||
}
|
||||
|
||||
find(objectStoreName, indexName, query, predicate=null, defaultValue) {
|
||||
return new Promise((resolve, reject) => {
|
||||
const transaction = this.transaction([objectStoreName], 'readonly');
|
||||
const objectStore = transaction.objectStore(objectStoreName);
|
||||
const objectStoreOrIndex = indexName !== null ? objectStore.index(indexName) : objectStore;
|
||||
const request = objectStoreOrIndex.openCursor(query, 'next');
|
||||
request.onerror = (e) => reject(e.target.error);
|
||||
request.onsuccess = (e) => {
|
||||
const cursor = e.target.result;
|
||||
if (cursor) {
|
||||
const value = cursor.value;
|
||||
if (typeof predicate !== 'function' || predicate(value)) {
|
||||
resolve(value);
|
||||
} else {
|
||||
cursor.continue();
|
||||
}
|
||||
} else {
|
||||
resolve(defaultValue);
|
||||
}
|
||||
};
|
||||
});
|
||||
}
|
||||
|
||||
bulkCount(targets, resolve, reject) {
|
||||
const targetCount = targets.length;
|
||||
if (targetCount <= 0) {
|
||||
resolve();
|
||||
return;
|
||||
}
|
||||
|
||||
let completedCount = 0;
|
||||
const results = new Array(targetCount).fill(null);
|
||||
|
||||
const onError = (e) => reject(e.target.error);
|
||||
const onSuccess = (e, index) => {
|
||||
const count = e.target.result;
|
||||
results[index] = count;
|
||||
if (++completedCount >= targetCount) {
|
||||
resolve(results);
|
||||
}
|
||||
};
|
||||
|
||||
for (let i = 0; i < targetCount; ++i) {
|
||||
const index = i;
|
||||
const [objectStoreOrIndex, query] = targets[i];
|
||||
const request = objectStoreOrIndex.count(query);
|
||||
request.onerror = onError;
|
||||
request.onsuccess = (e) => onSuccess(e, index);
|
||||
}
|
||||
}
|
||||
|
||||
delete(objectStoreName, key) {
|
||||
return new Promise((resolve, reject) => {
|
||||
const transaction = this.transaction([objectStoreName], 'readwrite');
|
||||
const objectStore = transaction.objectStore(objectStoreName);
|
||||
const request = objectStore.delete(key);
|
||||
request.onerror = (e) => reject(e.target.error);
|
||||
request.onsuccess = () => resolve();
|
||||
});
|
||||
}
|
||||
|
||||
bulkDelete(objectStoreName, indexName, query, filterKeys=null, onProgress=null) {
|
||||
return new Promise((resolve, reject) => {
|
||||
const transaction = this.transaction([objectStoreName], 'readwrite');
|
||||
const objectStore = transaction.objectStore(objectStoreName);
|
||||
const objectStoreOrIndex = indexName !== null ? objectStore.index(indexName) : objectStore;
|
||||
|
||||
const onGetKeys = (keys) => {
|
||||
try {
|
||||
if (typeof filterKeys === 'function') {
|
||||
keys = filterKeys(keys);
|
||||
}
|
||||
this._bulkDeleteInternal(objectStore, keys, onProgress, resolve, reject);
|
||||
} catch (e) {
|
||||
reject(e);
|
||||
}
|
||||
};
|
||||
|
||||
this.getAllKeys(objectStoreOrIndex, query, onGetKeys, reject);
|
||||
});
|
||||
}
|
||||
|
||||
static deleteDatabase(databaseName) {
|
||||
return new Promise((resolve, reject) => {
|
||||
const request = indexedDB.deleteDatabase(databaseName);
|
||||
request.onerror = (e) => reject(e.target.error);
|
||||
request.onsuccess = () => resolve();
|
||||
request.onblocked = () => reject(new Error('Database deletion blocked'));
|
||||
});
|
||||
}
|
||||
|
||||
// Private
|
||||
|
||||
_open(name, version, onUpgradeNeeded) {
|
||||
return new Promise((resolve, reject) => {
|
||||
const request = indexedDB.open(name, version);
|
||||
|
||||
request.onupgradeneeded = (event) => {
|
||||
try {
|
||||
request.transaction.onerror = (e) => reject(e.target.error);
|
||||
onUpgradeNeeded(request.result, request.transaction, event.oldVersion, event.newVersion);
|
||||
} catch (e) {
|
||||
reject(e);
|
||||
}
|
||||
};
|
||||
|
||||
request.onerror = (e) => reject(e.target.error);
|
||||
request.onsuccess = () => resolve(request.result);
|
||||
});
|
||||
}
|
||||
|
||||
_upgrade(db, transaction, oldVersion, upgrades) {
|
||||
for (const {version, stores} of upgrades) {
|
||||
if (oldVersion >= version) { continue; }
|
||||
|
||||
for (const [objectStoreName, {primaryKey, indices}] of Object.entries(stores)) {
|
||||
const existingObjectStoreNames = transaction.objectStoreNames || db.objectStoreNames;
|
||||
const objectStore = (
|
||||
this._listContains(existingObjectStoreNames, objectStoreName) ?
|
||||
transaction.objectStore(objectStoreName) :
|
||||
db.createObjectStore(objectStoreName, primaryKey)
|
||||
);
|
||||
const existingIndexNames = objectStore.indexNames;
|
||||
|
||||
for (const indexName of indices) {
|
||||
if (this._listContains(existingIndexNames, indexName)) { continue; }
|
||||
|
||||
objectStore.createIndex(indexName, indexName, {});
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
_listContains(list, value) {
|
||||
for (let i = 0, ii = list.length; i < ii; ++i) {
|
||||
if (list[i] === value) { return true; }
|
||||
}
|
||||
return false;
|
||||
}
|
||||
|
||||
_getAllFast(objectStoreOrIndex, query, resolve, reject) {
|
||||
const request = objectStoreOrIndex.getAll(query);
|
||||
request.onerror = (e) => reject(e.target.error);
|
||||
request.onsuccess = (e) => resolve(e.target.result);
|
||||
}
|
||||
|
||||
_getAllUsingCursor(objectStoreOrIndex, query, resolve, reject) {
|
||||
const results = [];
|
||||
const request = objectStoreOrIndex.openCursor(query, 'next');
|
||||
request.onerror = (e) => reject(e.target.error);
|
||||
request.onsuccess = (e) => {
|
||||
const cursor = e.target.result;
|
||||
if (cursor) {
|
||||
results.push(cursor.value);
|
||||
cursor.continue();
|
||||
} else {
|
||||
resolve(results);
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
_getAllKeysFast(objectStoreOrIndex, query, resolve, reject) {
|
||||
const request = objectStoreOrIndex.getAllKeys(query);
|
||||
request.onerror = (e) => reject(e.target.error);
|
||||
request.onsuccess = (e) => resolve(e.target.result);
|
||||
}
|
||||
|
||||
_getAllKeysUsingCursor(objectStoreOrIndex, query, resolve, reject) {
|
||||
const results = [];
|
||||
const request = objectStoreOrIndex.openKeyCursor(query, 'next');
|
||||
request.onerror = (e) => reject(e.target.error);
|
||||
request.onsuccess = (e) => {
|
||||
const cursor = e.target.result;
|
||||
if (cursor) {
|
||||
results.push(cursor.primaryKey);
|
||||
cursor.continue();
|
||||
} else {
|
||||
resolve(results);
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
_bulkDeleteInternal(objectStore, keys, onProgress, resolve, reject) {
|
||||
const count = keys.length;
|
||||
if (count === 0) {
|
||||
resolve();
|
||||
return;
|
||||
}
|
||||
|
||||
let completedCount = 0;
|
||||
const hasProgress = (typeof onProgress === 'function');
|
||||
|
||||
const onError = (e) => reject(e.target.error);
|
||||
const onSuccess = () => {
|
||||
++completedCount;
|
||||
if (hasProgress) {
|
||||
try {
|
||||
onProgress(completedCount, count);
|
||||
} catch (e) {
|
||||
// NOP
|
||||
}
|
||||
}
|
||||
if (completedCount >= count) {
|
||||
resolve();
|
||||
}
|
||||
};
|
||||
|
||||
for (const key of keys) {
|
||||
const request = objectStore.delete(key);
|
||||
request.onerror = onError;
|
||||
request.onsuccess = onSuccess;
|
||||
}
|
||||
}
|
||||
}
|
@ -115,6 +115,7 @@ vm.execute([
|
||||
'bg/js/media-utility.js',
|
||||
'bg/js/request.js',
|
||||
'bg/js/dictionary-importer.js',
|
||||
'bg/js/generic-database.js',
|
||||
'bg/js/database.js'
|
||||
]);
|
||||
const DictionaryImporter = vm.get('DictionaryImporter');
|
||||
@ -242,8 +243,8 @@ async function testDatabase1() {
|
||||
true
|
||||
);
|
||||
vm.assert.deepStrictEqual(counts, {
|
||||
counts: [{kanji: 2, kanjiMeta: 2, terms: 33, termMeta: 12, tagMeta: 14}],
|
||||
total: {kanji: 2, kanjiMeta: 2, terms: 33, termMeta: 12, tagMeta: 14}
|
||||
counts: [{kanji: 2, kanjiMeta: 2, terms: 33, termMeta: 12, tagMeta: 14, media: 1}],
|
||||
total: {kanji: 2, kanjiMeta: 2, terms: 33, termMeta: 12, tagMeta: 14, media: 1}
|
||||
});
|
||||
|
||||
// Test find* functions
|
||||
@ -269,7 +270,7 @@ async function testDatabaseEmpty1(database) {
|
||||
const counts = await database.getDictionaryCounts([], true);
|
||||
vm.assert.deepStrictEqual(counts, {
|
||||
counts: [],
|
||||
total: {kanji: 0, kanjiMeta: 0, terms: 0, termMeta: 0, tagMeta: 0}
|
||||
total: {kanji: 0, kanjiMeta: 0, terms: 0, termMeta: 0, tagMeta: 0, media: 0}
|
||||
});
|
||||
}
|
||||
|
||||
@ -863,8 +864,7 @@ async function testDatabase2() {
|
||||
const database = new Database();
|
||||
|
||||
// Error: not prepared
|
||||
await assert.rejects(async () => await database.purge());
|
||||
await assert.rejects(async () => await database.deleteDictionary(title, {}, () => {}));
|
||||
await assert.rejects(async () => await database.deleteDictionary(title, {rate: 1000}, () => {}));
|
||||
await assert.rejects(async () => await database.findTermsBulk(['?'], titles, null));
|
||||
await assert.rejects(async () => await database.findTermsExactBulk(['?'], ['?'], titles));
|
||||
await assert.rejects(async () => await database.findTermsBySequenceBulk([1], title));
|
||||
|
Loading…
Reference in New Issue
Block a user