Began implementing a shared set of test models to speed up tests.

tests/shared_models/models.py

@@ -1,3 +1,5 @@
+from __future__ import unicode_literals
+
 from django.db import models
 from django.utils import timezone
 from django.utils.encoding import python_2_unicode_compatible
@@ -9,7 +11,11 @@ class Tag(models.Model):
 
 @python_2_unicode_compatible
 class Author(models.Model):
-    name = models.CharField(max_length=100)
+    name = models.CharField(max_length=100, help_text='Use both first and last names.',
+        unique=True)
+
+    class Meta:
+        ordering = ['name']
 
     def __str__(self):
         return self.name
@@ -17,14 +23,15 @@ class Author(models.Model):
 
 @python_2_unicode_compatible
 class Book(models.Model):
-    name = models.CharField(max_length=200)
+    title = models.CharField(max_length=200)
     pages = models.IntegerField(default=0)
-    author = models.ForeignKey(Author, null=True)
+    author = models.ForeignKey(Author, null=True, blank=True)
     pubdate = models.DateTimeField()
     tags = models.ManyToManyField(Tag)
 
     class Meta:
-        ordering = ['-pubdate', 'name']
+        ordering = ['-pubdate', 'title']
+        unique_together = ['title', 'author']
 
     def __str__(self):
-        return self.name
+        return self.title