TPT3 - Adding to_dict

models.py

class TodoItem(models.Model):
    text = models.TextField('Item Text')
    todo_list = models.ForeignKey(TodoList, related_name='items')

    def to_dict(self):
        return {'text': self.text, 'id': self.pk}

    def __unicode__(self):
        return self.text[:50] + ' ' + unicode(self.todo_list)