"""

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

more information.

"""

from django.db import models

from django.test import TestCase

class Author(models.Model):

    first_name = models.CharField(max_length=30)

    last_name = models.CharField(max_length=30)

    def __str__(self):

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

class Article(models.Model):

    author = models.ForeignKey(Author)

    headline = models.CharField(max_length=100)

    def __str__(self):

        return self.headline

class Entry(models.Model):

    title = models.CharField(max_length=250)

    body = models.TextField()

    pub_date = models.DateField()

    enable_comments = models.BooleanField()

    def __str__(self):

        return self.title

class Book(models.Model):

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