006653ed8e
This change removes the timestamp field from messages and conversations in favor of multiple semantically named timestamp fields: sent_at, received_at on messages; active_at on conversations. This requires/lets us rethink and improve our indexing scheme thusly: The inbox index on conversations will order entries by the conversation.active_at property, which should only appear on conversations destined for the inbox. The receipt index will use the message.sent_at property, for effecient lookup of outgoing messages by timestamp, for use in processing delivery receipts. The group index on conversation.members is multi-entry, meaning that looking up any phone number in this index will efficiently yield all groups the number belongs to. The conversation index lets us scan messages in a single conversation, in the order they were received (or the reverse order). It is a compound index on [conversationId, received_at].
53 lines
1.8 KiB
JavaScript
53 lines
1.8 KiB
JavaScript
/* vim: ts=4:sw=4:expandtab
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*
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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 Lesser 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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*
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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 Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser 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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(function () {
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'use strict';
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window.Whisper = window.Whisper || {};
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var Message = Backbone.Model.extend({
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database : Whisper.Database,
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storeName : 'messages',
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defaults : function() {
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return {
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timestamp: new Date().getTime(),
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attachments: []
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};
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},
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validate: function(attributes, options) {
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var required = ['conversationId', 'received_at', 'sent_at'];
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var missing = _.filter(required, function(attr) { return !attributes[attr]; });
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if (missing.length) {
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console.log("Message missing attributes: " + missing);
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}
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}
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});
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Whisper.MessageCollection = Backbone.Collection.extend({
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model : Message,
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database : Whisper.Database,
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storeName : 'messages',
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comparator : 'received_at',
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destroyAll : function () {
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return Promise.all(this.models.map(function(m) {
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return new Promise(function(resolve, reject) {
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m.destroy().then(resolve).fail(reject);
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});
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}));
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}
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});
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})()
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