Be able to sort ArrayController by computed property in itemController

[Gaurav0]

Currently, if sortProperties includes a computed property on itemController, that property is not found. You can only sort on properties of the original model.

[stefanpenner]

@hjdivad we really need to port sortable stuff to array computed...

[LevelbossMike]

@Gaurav0 you can use Ember.computed.sort if you want to sort by properties of itemController.
http://emberjs.jsbin.com/hawa/7/edit

[hjdivad]

@stefanpenner would love to. It's blocked on #4185 in order to support full backwards compatibility.

[hjdivad]

And #4185 is blocked on a decision from core on what to do for backwards compat of existing core macros.

[hjdivad]

@LevelbossMike thanks for the jsbin ^_^

[wagenet]

@hjdivad #4185 is closed

[hjdivad]

@wagenet yeah, need to just do this manually in Em.computed.sort now.

[williamli]

Em.computed.sort will cause a index out of range error at resort ref: #4831

[wagenet]

See #5267