feat(filter): orderBy for object collections

[khepin]

Allows to use orderBy filter on collection objects and not only arrays.

eg:

var c = {
    b: {name: 'b'},
    c: {name: 'c'},
    a: {name: 'a'}
};
orderBy(c, 'name'); // => [{name: 'a'}, {name: 'b'}, {name: 'c'}];

Closes: #6210

[khepin]

CLA should be ok now hopefully.

[mary-poppins]

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[caitp]

I don't really like that we're losing object keys with this, I dunno. It basically transforms the object into an array, and it's impossible to sort by the key of the object (which would be a cool trick, even for arrays)

[caitp]

but hmm, maybe it doesn't matter that much.

[khepin]

I understand your point about that but to keep the key, we would have to return a different structure like [{key: 'userName', value: {/* an object*/}}, ...] which is an even worse solution I believe. If the keys are important though, and maybe even sorting the keys, I think the best way is to first create an array of the keys then iterate on the keys.

[nodecode]

If support for objects released soon?

[petebacondarwin]

I have created a module that provides the toArray filter for helping with these situations

http://ngmodules.org/modules/angular-toArrayFilter

[Narretz]

I think we can close this, based on #11255