1 files changed, 31 insertions, 0 deletions
diff --git a/tests/db_functions/models.py b/tests/db_functions/models.py
new file mode 100644
index 0000000000..19722aeed2
--- /dev/null
+++ b/tests/db_functions/models.py
@@ -0,0 +1,31 @@
+"""
+Tests for built in Function expressions.
+"""
+from __future__ import unicode_literals
+
+from django.db import models
+from django.utils.encoding import python_2_unicode_compatible
+
+
+@python_2_unicode_compatible
+class Author(models.Model):
+    name = models.CharField(max_length=50)
+    alias = models.CharField(max_length=50, null=True, blank=True)
+    goes_by = models.CharField(max_length=50, null=True, blank=True)
+
+    def __str__(self):
+        return self.name
+
+
+@python_2_unicode_compatible
+class Article(models.Model):
+    authors = models.ManyToManyField(Author, related_name='articles')
+    title = models.CharField(max_length=50)
+    summary = models.CharField(max_length=200, null=True, blank=True)
+    text = models.TextField()
+    written = models.DateTimeField()
+    published = models.DateTimeField(null=True, blank=True)
+    views = models.PositiveIntegerField(default=0)
+
+    def __str__(self):
+        return self.title