add auto_now field

trubox/deals/models.py

@@ -1,11 +1,13 @@
 from django.db import models
 from django.contrib.auth.models import User
+from datetime import datetime
 
 
 class ProductGroup(models.Model):
     url = models.URLField()
     created_by = models.ForeignKey(User)    
     name = models.CharField(max_length=255)
+    created_time = models.DateTimeField(default=datetime.now)
     description = models.TextField(blank=True)
     end_time = models.DateTimeField()
     is_locked = models.BooleanField(default=False)