@@ -0,0 +1,325 @@
+from django.db import models%0A%0Aclass TimeStampedModel(models.Model):%0A    %22%22%22%0A    An abstract base class model that provides selfupdating %60%60created%60%60 and %60%60modified%60%60 fields.%0A    %22%22%22%0A    created = models.DateTimeField(auto_now_add=True)%0A    modified = models.DateTimeField(auto_now=True)%0A    class Meta:%0A        abstract = True

Add core models(TimeStampedModel) for all models