add default ordering to schedule models

symposion/schedule/models.py

@@ -94,6 +94,9 @@ class Slot(models.Model):
     def __unicode__(self):
         return "%s %s (%s - %s)" % (self.day, self.kind, self.start, self.end)
     
+    class Meta:
+        ordering = ["day", "start", "end"]
+
 
 class SlotRoom(models.Model):
     """
@@ -108,6 +111,7 @@ class SlotRoom(models.Model):
     
     class Meta:
         unique_together = [("slot", "room")]
+        ordering = ["slot", "room__order"]
 
 
 class Presentation(models.Model):
@@ -139,3 +143,6 @@ class Presentation(models.Model):
     
     def __unicode__(self):
         return "#%s %s (%s)" % (self.number, self.title, self.speaker)
+    
+    class Meta:
+        ordering = ["slot"]

symposion/schedule/views.py

@@ -61,7 +61,7 @@ def schedule_list(request, slug=None):
     schedule = fetch_schedule(slug)
     
     presentations = Presentation.objects.filter(section=schedule.section)
-    presentations = presentations.exclude(cancelled=True).order_by("id")
+    presentations = presentations.exclude(cancelled=True)
     
     ctx = {
         "schedule": schedule,