coll.find({num: 10}, {'sub.num': 1}).toArray(function (err, docs) {
if (err) throw err;
var doc = docs[0];
assert.equal(_.size(doc), 2);
assert.equal(doc.sub.num, 10);
done();
});
Cursor.prototype.sort = function (v, cb) {
if (_.isNumber(cb) || _.isString(cb)) { // handle sort(a,1)
v = {v: cb};
cb = null;
}
if (this._i) this._err = new Error('Cursor is closed');
if (this._err) return this;
if (!_.isObject(v)) {
if (!_.isString(v)) {
this._err = new Error("Illegal sort clause, must be of the form [['field1', '(ascending|descending)'], ['field2', '(ascending|descending)']]");
} else {
this._sort = v;
this._order = 1;
}
} else {
if (_.size(v) <= 2) {
if (_.isArray(v)) {
if (_.isArray(v[0])) {
this._sort = v[0][0];
this._order = v[0][1];
} else {
this._sort = v[0];
this._order = 1;
}
} else {
this._sort = _.keys(v)[0];
this._order = v[this._sort];
}
if (this._sort) {
if (this._order == 'asc')
this._order = 1;
if (this._order == 'desc')
this._order = -1;
if (!(this._order == 1 || this._order == -1))
this._err = new Error("Illegal sort clause, must be of the form [['field1', '(ascending|descending)'], ['field2', '(ascending|descending)']]");
}
} else this._err = new Error("Multi field sort is not supported");
}
var self = this;
if (cb)
process.nextTick(function () {cb(self._err, self);});
return this;
};
coll.find({num: 10}, {'num': 1}).toArray(safe.sure(done, function (docs) {
assert.equal(_.size(docs[0]), 2);
assert.equal(docs[0].num, 10);
done();
}));