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

This reverts commit 22b7870e40.

tests/model_forms/models.py

@@ -17,7 +17,6 @@ from django.db import models
 from django.utils import six
 from django.utils.encoding import python_2_unicode_compatible
 
-from shared_models.models import Author, Book
 
 temp_storage_dir = tempfile.mkdtemp(dir=os.environ['DJANGO_TEST_TEMP_DIR'])
 temp_storage = FileSystemStorage(temp_storage_dir)
@@ -46,13 +45,23 @@ class Category(models.Model):
     def __repr__(self):
         return self.__str__()
 
+@python_2_unicode_compatible
+class Writer(models.Model):
+    name = models.CharField(max_length=50, help_text='Use both first and last names.')
+
+    class Meta:
+        ordering = ('name',)
+
+    def __str__(self):
+        return self.name
+
 @python_2_unicode_compatible
 class Article(models.Model):
     headline = models.CharField(max_length=50)
     slug = models.SlugField()
     pub_date = models.DateField()
     created = models.DateField(editable=False)
-    writer = models.ForeignKey(Author)
+    writer = models.ForeignKey(Writer)
     article = models.TextField()
     categories = models.ManyToManyField(Category, blank=True)
     status = models.PositiveIntegerField(choices=ARTICLE_STATUS, blank=True, null=True)
@@ -72,12 +81,12 @@ class ImprovedArticle(models.Model):
 class ImprovedArticleWithParentLink(models.Model):
     article = models.OneToOneField(Article, parent_link=True)
 
-class BetterAuthor(Author):
+class BetterWriter(Writer):
     score = models.IntegerField()
 
 @python_2_unicode_compatible
-class AuthorProfile(models.Model):
-    writer = models.OneToOneField(Author, primary_key=True)
+class WriterProfile(models.Model):
+    writer = models.OneToOneField(Writer, primary_key=True)
     age = models.PositiveIntegerField()
 
     def __str__(self):
@@ -177,6 +186,14 @@ class Inventory(models.Model):
     def __repr__(self):
         return self.__str__()
 
+class Book(models.Model):
+    title = models.CharField(max_length=40)
+    author = models.ForeignKey(Writer, blank=True, null=True)
+    special_id = models.IntegerField(blank=True, null=True, unique=True)
+
+    class Meta:
+        unique_together = ('title', 'author')
+
 class BookXtra(models.Model):
     isbn = models.CharField(max_length=16, unique=True)
     suffix1 = models.IntegerField(blank=True, default=0)