1 """

     2 Comments may be attached to any object. See the comment documentation for

     3 more information.

     4 """

     5 

     6 from django.db import models

     7 from django.test import TestCase

     8 

     9 class Author(models.Model):

    10     first_name = models.CharField(max_length=30)

    11     last_name = models.CharField(max_length=30)

    12 

    13     def __str__(self):

    14         return '%s %s' % (self.first_name, self.last_name)

    15 

    16 class Article(models.Model):

    17     author = models.ForeignKey(Author)

    18     headline = models.CharField(max_length=100)

    19 

    20     def __str__(self):

    21         return self.headline

    22 

    23 class Entry(models.Model):

    24     title = models.CharField(max_length=250)

    25     body = models.TextField()

    26     pub_date = models.DateField()

    27     enable_comments = models.BooleanField()

    28 

    29     def __str__(self):

    30         return self.title

    31 

    32 class Book(models.Model):

    33     dewey_decimal = models.DecimalField(primary_key = True, decimal_places=2, max_digits=5)

    34