Sort ng-options by translated values

Answer 1

You could supply a predicate function to orderBy and have that function return the translated value. It means you also have to pass in the $filter service to your controller because you'd need to invoke translate inside your JS code.

So, to offer some code as guidance:

// CONTROLLER
// * Don't forget to inject the $filter service

$scope.translated = function(p) {
    return $filter('translate')('LANGUAGE.' + p.id);
}

And then you'd modify your orderBy expression:

... | orderBy:translated

I realise the suggestion seems somewhat convoluted because one translation attempt occurs within ng-options and then another in orderBy, but it should sort the select options as you'd expect.