--- a/project/scipycon/base/models.py	Tue Jul 20 15:45:13 2010 +0530
+++ b/project/scipycon/base/models.py	Tue Jul 20 15:46:27 2010 +0530
@@ -1,5 +1,33 @@
 from django.db import models
-from django.core.management.validation import max_length
+
+
+class Timeline(models.Model):
+    """Timeline of the program
+    """
+
+    # Start of registration for the program
+    registration_start = models.DateTimeField(blank=True)
+
+    # End of registration for the program
+    registration_end = models.DateTimeField(blank=True)
+
+    # Start of Call for Papers
+    cfp_start = models.DateTimeField(blank=True)
+
+    # End of Call for Papers
+    cfp_end = models.DateTimeField(blank=True)
+
+    # Accepted papers announced
+    accepted_papers_announced = models.DateTimeField(blank=True)
+
+    # Deadline to submit proceedings paper
+    proceedings_paper_deadline = models.DateTimeField(blank=True)
+
+    # Start of the actual program
+    event_start = models.DateTimeField(blank=True)
+
+    # End of the actual program
+    event_end = models.DateTimeField(blank=True)
 
 
 class Event(models.Model):
@@ -28,42 +56,13 @@
     status = models.CharField(max_length=255, choices=STATUS_CHOICES)
 
 
-class Timeline(models.Model):
-    """Timeline of the program
-    """
-
-    # Start of registration for the program
-    registration_start = models.DateTimeField()
-
-    # End of registration for the program
-    registration_end = models.DateTimeField()
-
-    # Start of Call for Papers
-    cfp_start = models.DateTimeField()
-
-    # End of Call for Papers
-    cfp_end = models.DateTimeField()
-
-    # Accepted papers announced
-    accepted_papers_announced = models.DateTimeField()
-
-    # Deadline to submit proceedings paper
-    proceedings_paper_deadline = models.DateTimeField()
-
-    # Start of the actual program
-    event_start = models.DateTimeField()
-
-    # End of the actual program
-    event_end = models.DateTimeField()
-
-
 class ScopedBase(models.Model):
     """Base model which is in turn inherited by other models
     which needs to be scoped.
     """
 
     # Scope of entity in which it is visible
-    scope = models.ForeignKey(Scope)
+    scope = models.ForeignKey(Event)
 
     class Meta:
         abstract = True