Google calendar sync

eventplanner/models.py

@@ -2,12 +2,14 @@ from django.db import models
 from django.utils.translation import ugettext as _
 from django.contrib.auth.models import User, Permission
 
-
-from django.db.models import Q
-
 from datetime import datetime
 from location_field.models import PlainLocationField
 
+from django.db.models import Q
+from django.dispatch import Signal
+
+
+
 
 class NoNextEventException( Exception ):
     def __str__(self):
@@ -113,7 +115,10 @@ class Event ( models.Model ):
                     
             return nextEvent
 
-    
+
+before_read = Signal()
+
+
 class EventParticipation( models.Model ):
     OPTIONS = ( ('?'  , _('?'  )),
                 ('Yes', _('Yes')),
@@ -124,7 +129,8 @@ class EventParticipation( models.Model ):
     user      = models.ForeignKey( User, verbose_name=_("user") )
     status    = models.CharField ( max_length=3, choices = OPTIONS, default='?', verbose_name=_("status") )
     comment   = models.CharField ( max_length=64, blank=True, verbose_name=_("comment") )
-    
+
+
     def get_username(self):
         return self.user.username
     
@@ -140,7 +146,11 @@ class EventParticipation( models.Model ):
             return False
         else:
             return True
-    
+
+    @staticmethod
+    def raiseBeforeReadSignal():
+        before_read.send( sender=EventParticipation )
+
     @staticmethod
     def isMember( user ):
         return user.has_perm('eventplanner.member')