--- a/project/scipycon/base/models.py	Thu Jul 15 00:50:16 2010 +0530
+++ b/project/scipycon/base/models.py	Thu Jul 15 00:50:38 2010 +0530
@@ -1,8 +1,11 @@
 from django.db import models
 
 
-class Base(models.Model):
+class ScopedBase(models.Model):
     """Base model which is in turn inherited by other models. 
     """
-    
+
     scope = models.CharField(max_length=255)
+
+    class Meta:
+        abstract = True

--- a/project/scipycon/proceedings/models.py	Thu Jul 15 00:50:16 2010 +0530
+++ b/project/scipycon/proceedings/models.py	Thu Jul 15 00:50:38 2010 +0530
@@ -4,7 +4,7 @@
 from project.scipycon.base import models as base_models
 
 
-class Paper(base_models.Base):
+class Paper(base_models.ScopedBase):
     """Data model for storing proceedings paper.
     """
 
@@ -21,7 +21,7 @@
     authors = models.ManyToManyField(User)
 
 
-class Attachments(models.Base):
+class Attachments(models.Model):
     """Stores attachments for papers.
     """
 

--- a/project/scipycon/registration/models.py	Thu Jul 15 00:50:16 2010 +0530
+++ b/project/scipycon/registration/models.py	Thu Jul 15 00:50:38 2010 +0530
@@ -18,14 +18,16 @@
     )
 
 
-class Wifi(base_models.Base):
-    """Defines wifi options at *PyCon"""
+class Wifi(base_models.ScopedBase):
+    """Defines wifi options at SciPy.in
+    """
     user = models.ForeignKey(User)
+
     wifi = models.CharField(max_length=50, choices=WIFI_CHOICES,
-            help_text=WIFI_HELP, verbose_name="Laptop")
+                            help_text=WIFI_HELP, verbose_name="Laptop")
 
 
-class Registration(base_models.Model):
+class Registration(base_models.ScopedBase):
     """Defines registration at SciPy.in"""
 
     slug = models.SlugField()
@@ -39,7 +41,7 @@
     city = models.CharField(max_length=255, blank=True)
 
     postcode = models.CharField(max_length=255, blank=True)
-    
+
     phone_num = models.CharField(max_length=14, blank=True)
 
     tshirt = models.CharField(max_length=2, choices=SIZE_CHOICES)

--- a/project/scipycon/talk/models.py	Thu Jul 15 00:50:16 2010 +0530
+++ b/project/scipycon/talk/models.py	Thu Jul 15 00:50:38 2010 +0530
@@ -22,7 +22,7 @@
     )
 
 
-class Talk(base_models.Base):
+class Talk(base_models.ScopedBase):
     """Defines talks at SciPy.in
     """
 

--- a/project/scipycon/user/models.py	Thu Jul 15 00:50:16 2010 +0530
+++ b/project/scipycon/user/models.py	Thu Jul 15 00:50:38 2010 +0530
@@ -6,7 +6,7 @@
 from project.scipycon.base import models as base_models
 
 
-class UserProfile(base_models.Base):
+class UserProfile(base_models.ScopedBase):
     """Extend atributes for django User
     """