How to transform the status property of a content object for use by a view.

custom_binding.js

valueBinding: SC.Binding.transform(function(value, binding) {
  if (value === SC.Record.READY_DIRTY ||
    value === SC.Record.READY_NEW) {
    return YES;
  } else return NO;
}).from('Todos.taskController.status')

    valueBinding: SC.Binding.transform(function(value,binding){
      if (value === "") return "Categories";
      else return value;
    }).from('Rollbook.categoryController.name');