1bdb42b67e
Sometimes a conversation's messages would be reverse-ordered on first load, correcting themselves after a refresh. This is an artifact of the order we load messages from the database. To fix, load them in the opposite order. The alternative solution would be to reset the collection every time we fetch new messages, but this would create an entirely new set of model objects each time, which seems unnecessary.
84 lines
3 KiB
JavaScript
84 lines
3 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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isEndSession: function() {
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var flag = textsecure.protobuf.PushMessageContent.Flags.END_SESSION;
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return !!(this.get('flags') & flag);
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},
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isGroupUpdate: function() {
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return !!(this.get('group_update'));
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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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fetchSentAt: function(timestamp) {
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return this.fetch({
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index: {
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// 'receipt' index on sent_at
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name: 'receipt',
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only: timestamp
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}
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});
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},
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fetchConversation: function(conversationId, options) {
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options = options || {};
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options.index = {
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// 'conversation' index on [conversationId, received_at]
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name : 'conversation',
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lower : [conversationId],
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upper : [conversationId, Number.MAX_VALUE]
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// SELECT messages WHERE conversationId = this.id ORDER
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// received_at DESC
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};
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// TODO pagination/infinite scroll
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// limit: 10, offset: page*10,
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return this.fetch(options);
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}
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});
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})()
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