[svn] Reverted the reverts from 8267. Fixed the next / previous trip in personexpedition on the LogbookEntry template -- I had misunderstood what this was supposed to do last time I messed with it. This involved adding the methods PersonTrip.get_persons_next_trip and persons_previous_trip. Couldn't find any other broken things.

Kept the productive changes in 8267: extending the logbook parsing back to 1993, changing index page, changes to view_surveys.py

Copied from http://cucc@cucc.survex.com/svn/trunk/expoweb/troggle/, rev. 8274 by aaron @ 3/14/2009 8:38 AM

expo/models.py

@@ -260,7 +260,19 @@ class PersonTrip(TroggleModel):
     def __unicode__(self):
         return "%s %s (%s)" % (self.person_expedition, self.place, self.date)
 
+    def get_persons_next_trip(self):
+	try:
+            return PersonTrip.objects.filter(person_expedition__person=self.person_expedition.person, date__gt=self.date)[0]
+        except:
+	    return
 
+    def get_persons_previous_trip(self):
+	try:
+            return PersonTrip.objects.filter(person_expedition__person=self.person_expedition.person, date__lt=self.date)[0]
+        except:
+	    return
+
+#    def get_persons_previous_trip(self):
 #
 # move following classes into models_cave
 #