nextcloud/apps/comments/js/commentcollection.js

111 lines
2.5 KiB
JavaScript

/*
* Copyright (c) 2016
*
* This file is licensed under the Affero General Public License version 3
* or later.
*
* See the COPYING-README file.
*
*/
(function(OC, OCA) {
var NS_OWNCLOUD = 'http://owncloud.org/ns';
/**
* @class OCA.Comments.CommentCollection
* @classdesc
*
* Collection of comments assigned to a file
*
*/
var CommentCollection = OC.Backbone.Collection.extend(
/** @lends OCA.Comments.CommentCollection.prototype */ {
sync: OC.Backbone.davSync,
model: OCA.Comments.CommentModel,
_objectType: 'files',
_objectId: null,
_endReached: false,
_limit : 20,
initialize: function(models, options) {
options = options || {};
if (options.objectType) {
this._objectType = options.objectType;
}
if (options.objectId) {
this._objectId = options.objectId;
}
},
url: function() {
return OC.linkToRemote('dav') + '/comments/' +
encodeURIComponent(this._objectType) + '/' +
encodeURIComponent(this._objectId) + '/';
},
setObjectId: function(objectId) {
this._objectId = objectId;
},
hasMoreResults: function() {
return !this._endReached;
},
reset: function() {
this._endReached = false;
return OC.Backbone.Collection.prototype.reset.apply(this, arguments);
},
/**
* Fetch the next set of results
*/
fetchNext: function(options) {
var self = this;
if (!this.hasMoreResults()) {
return null;
}
var body = '<?xml version="1.0" encoding="utf-8" ?>\n' +
'<oc:filter-comments xmlns:D="DAV:" xmlns:oc="http://owncloud.org/ns">\n' +
// load one more so we know there is more
' <oc:limit>' + (this._limit + 1) + '</oc:limit>\n' +
' <oc:offset>' + this.length + '</oc:offset>\n' +
'</oc:filter-comments>\n';
options = options || {};
var success = options.success;
options = _.extend({
remove: false,
data: body,
davProperties: CommentCollection.prototype.model.prototype.davProperties,
success: function(resp) {
if (resp.length <= self._limit) {
// no new entries, end reached
self._endReached = true;
} else {
// remove last entry, for next page load
resp = _.initial(resp);
}
if (!self.set(resp, options)) {
return false;
}
if (success) {
success.apply(null, arguments);
}
self.trigger('sync', 'REPORT', self, options);
}
}, options);
return this.sync('REPORT', this, options);
}
});
OCA.Comments.CommentCollection = CommentCollection;
})(OC, OCA);