github/meteor
1
1
Fork 0
mirror of https://github.com/meteor/meteor.git synced 2026-05-02 03:01:46 -04:00
Code Issues Packages Projects Releases Wiki Activity

Switching cursor publishing to observeChanges

Browse Source
This commit is contained in:
Naomi Seyfer
2013-01-22 11:53:27 -08:00
parent 378e7c9fe5
commit 9506846da7
1 changed files with 8 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
packages/mongo-livedata/mongo_driver.js
View File

@@ -292,28 +292,19 @@ Cursor.prototype._publishCursor = function (sub) {
var self = this;
var collection = self._cursorDescription.collectionName;
var observeHandle = self._observeUnordered({
added: function (obj) {
sub.added(collection, obj._id, obj);
var observeHandle = self.observeChanges({
added: function (id, fields) {
sub.added(collection, id, fields);
},
changed: function (obj, oldObj) {
var fields = {};
_.each(obj, function (v, k) {
if (!_.isEqual(v, oldObj[k]))
fields[k] = v;
});
var deadKeys = _.difference(_.keys(oldObj), _.keys(obj));
_.each(deadKeys, function (deadKey) {
fields[deadKey] = undefined;
});
sub.changed(collection, obj._id, fields);
changed: function (id, fields) {
sub.changed(collection, id, fields);
},
removed: function (oldObj) {
sub.removed(collection, oldObj._id);
removed: function (id) {
sub.removed(collection, id);
}
});
// _observeUnordered only returns after the initial added callbacks have run.
// observeChanges only returns after the initial added callbacks have run.
// mark subscription as completed.
sub.complete();