Merged regressiontests and modeltests into the test root.

tests/datetimes/models.py

@@ -0,0 +1,28 @@
+from __future__ import unicode_literals
+
+from django.db import models
+from django.utils.encoding import python_2_unicode_compatible
+
+
+@python_2_unicode_compatible
+class Article(models.Model):
+    title = models.CharField(max_length=100)
+    pub_date = models.DateTimeField()
+
+    categories = models.ManyToManyField("Category", related_name="articles")
+
+    def __str__(self):
+        return self.title
+
+@python_2_unicode_compatible
+class Comment(models.Model):
+    article = models.ForeignKey(Article, related_name="comments")
+    text = models.TextField()
+    pub_date = models.DateTimeField()
+    approval_date = models.DateTimeField(null=True)
+
+    def __str__(self):
+        return 'Comment to %s (%s)' % (self.article.title, self.pub_date)
+
+class Category(models.Model):
+    name = models.CharField(max_length=255)