54 lines
1.3 KiB
JavaScript
54 lines
1.3 KiB
JavaScript
"use strict";
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function DiscoStorage(storage) {
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this.storage = storage;
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}
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DiscoStorage.prototype = {
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constructor: {
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value: DiscoStorage
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},
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setup: function (db) {
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if (db.objectStoreNames.contains('disco')) {
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db.deleteObjectStore('disco');
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}
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db.createObjectStore('disco', {
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keyPath: 'ver'
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});
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},
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transaction: function (mode) {
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var trans = this.storage.db.transaction('disco', mode);
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return trans.objectStore('disco');
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},
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add: function (ver, disco, cb) {
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cb = cb || function () {};
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var data = {
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ver: ver,
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disco: disco
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};
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var request = this.transaction('readwrite').put(data);
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request.onsuccess = function () {
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cb(false, data);
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};
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request.onerror = cb;
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},
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get: function (ver, cb) {
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cb = cb || function () {};
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if (!ver) {
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return cb('not-found');
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}
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var request = this.transaction('readonly').get(ver);
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request.onsuccess = function (e) {
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var res = request.result;
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if (res === undefined) {
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return cb('not-found');
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}
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cb(false, res.disco);
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};
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request.onerror = cb;
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}
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};
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module.exports = DiscoStorage;
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