TPT2 - Adding unicode to models

models.py

from django.db import models
from django.contrib.auth.models import User


class TodoList(models.Model):
    name = models.CharField('List Title', max_length=200)
    author = models.ForeignKey(User, related_name='todo_lists')

    def __unicode__(self):
        return '"' + self.name + '" by ' + unicode(self.author)


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

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