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gaia/apps/calendar/js/store/ical_component.js

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+define(function(require, exports, module) {
+'use strict';
+
+var Abstract = require('./abstract');
+var Calc = require('common/calc');
+var core = require('core');
+var denodeifyAll = require('common/promise').denodeifyAll;
+
+function IcalComponent() {
+  Abstract.apply(this, arguments);
+
+  denodeifyAll(this, [
+    'findRecurrencesBefore'
+  ]);
+}
+module.exports = IcalComponent;
+
+IcalComponent.prototype = {
+  __proto__: Abstract.prototype,
+
+  _store: 'icalComponents',
+
+  /** disable caching */
+  _addToCache: function() {},
+  _removeFromCache: function() {},
+
+  _createModel: function(object) {
+    return object;
+  },
+
+  _detectPersistType: function(object) {
+    // always fire update.
+    return 'update';
+  },
+
+  /**
+   * Finds all components which have recurrences
+   * that are not expanded beyond the given date.
+   *
+   * @param {Date} maxDate max date to find.
+   * @param {Function} callback results of search [err, [icalComp, ...]].
+   */
+  findRecurrencesBefore: function(maxDate, callback) {
+    var trans = core.db.transaction(this._store, 'readwrite');
+
+    trans.onerror = function(event) {
+      callback(event.target.error.name);
+    };
+
+    var time = Calc.dateToTransport(maxDate);
+    var utc = time.utc;
+    var range = IDBKeyRange.bound(0, utc);
+    var store = trans.objectStore(this._store);
+    var idx = store.index('lastRecurrenceId');
+
+    var req = idx.mozGetAll(range);
+
+    req.onsuccess = function(event) {
+      callback(null, event.target.result);
+    };
+  }
+};
+
+});