fix error in /stops/ api call

chaloBEST/mumbai/apiviews.py

@@ -67,9 +67,9 @@ def areas(request):
 def stops(request):
     q = request.GET.get("q", "")
     if q != '':
-        qset = Stop.objects.find_approximate(q, TRIGRAM_THRESHOLD)
+        qset = Stop.objects.find_approximate(q, TRIGRAM_THRESHOLD).select_related()
     else:
-        qset = Stop.objects.all()
+        qset = Stop.objects.all().select_related()
     srid = int(request.GET.get("srid", 4326))   
     return render_to_json_response({
         'type': 'FeatureCollection',

chaloBEST/mumbai/models.py

@@ -144,6 +144,10 @@ class Stop(models.Model):
     alt_names = generic.GenericRelation("AlternativeName")
 
     def get_dict(self):
+        routes = []
+        for r in self.routedetail_set.all():
+            if r.route is not None:
+                routes.append(r.route)
         return {
             'id': self.id,
             'code': self.code,
@@ -154,7 +158,7 @@ class Stop(models.Model):
             'area': self.area.name,
             'name_mr': self.name_mr,
             'direction': self.dbdirection,
-            'routes': ", ".join([r.route.alias for r in RouteDetail.objects.filter(stop=self)]),
+            'routes': ", ".join([r.alias for r in routes]),
             'alternative_names': ", ".join([a.name for a in self.alt_names.all().filter(typ='common')])
         }