Options for ascending/descending sort for ModelList

[rishabhm]

Could an additional attribute be added to the sort() function of a modellist that allows us to specify if we want the list sorted in ascending order or descending? The three functions in question are :

sort -> _sort -> _compare

[ericf]

The options passed to sort() should be passed along to _sort(); doing so will allow for the following in your code:

var ml = new Y.ModelList();

ml._sort = function (a, b, options) {
    var result = Y.ModelList.prototype.sort.apply(this, arguments);

    if (result === 0) {
        return result;
    }

    return options && options.descending ? -result : result;
};

ml.sort({descending: true});

---

To make this possible, ModelList needs to be changed so that is passes along the options from sort() to _sort(). Looking at the code, this should be straight forward using Y.rbind().

[ericf]

Merged #1005, closing…