# Pastebin mwkVfI6p
const cmp_rolePickerController = function rolePicker($scope, $element, $attrs, cmp_rolePickerService) {
    const ctrl = this

    ctrl.update = function(prop, value){
        ctrl.onUpdate()
    }
    ctrl.$onChanges = function(newObj){
        if(Array.isArray(newObj.roles.currentValue) && newObj.roles.currentValue.length > 0){
            ctrl.selectedRole = newObj.roles.currentValue[0]
            newObj.selectedRole = newObj.roles.currentValue[0]
        }
    }
    ctrl.$onInit = function(){
        if(Array.isArray(ctrl.roles) && ctrl.roles.length > 0)
            ctrl.selectedRole = ctrl.roles[0]
        //do init stuff
    }