Refactor to avoid loading unused surveystations

core/models.py

@@ -112,7 +112,6 @@ class Expedition(TroggleModel):
         res = self.expeditionday_set.all()
         return res and res[len(res) - 1] or None
 
-
 class ExpeditionDay(TroggleModel):
     expedition  = models.ForeignKey("Expedition")
     date        = models.DateField()
@@ -182,7 +181,6 @@ class Person(TroggleModel):
           #  self.href = self.first_name.lower()
             #self.orderref = self.first_name
         #self.notability = 0.0  # set temporarily
-        
 
 class PersonExpedition(TroggleModel):
     """Person's attendance to one Expo
@@ -320,7 +318,6 @@ class LogbookEntry(TroggleModel):
     def DayIndex(self):
         return list(self.expeditionday.logbookentry_set.all()).index(self)
 
-
 #
 # Single Person going on a trip, which may or may not be written up (accounts for different T/U for people in same logbook entry)
 #
@@ -357,7 +354,6 @@ class PersonTrip(TroggleModel):
 
     def __str__(self):
         return "%s (%s)" % (self.personexpedition, self.logbook_entry.date)
-    
 
 
 ##########################################
@@ -391,7 +387,6 @@ class CaveSlug(models.Model):
     cave = models.ForeignKey('Cave')
     slug = models.SlugField(max_length=50, unique = True)
     primary = models.BooleanField(default=False)
-    
 
 class Cave(TroggleModel):
     # too much here perhaps, 
@@ -564,7 +559,7 @@ class OtherCaveName(TroggleModel):
     cave = models.ForeignKey(Cave)
     def __str__(self):
         return str(self.name)
-            
+
 class EntranceSlug(models.Model):
     entrance = models.ForeignKey('Entrance')
     slug = models.SlugField(max_length=50, unique = True)
@@ -896,4 +891,4 @@ class DataIssue(TroggleModel):
         ordering = ['date']
 
     def __str__(self):
-        return "%s - %s" % (self.parser, self.message)
+        return "%s - %s" % (self.parser, self.message)