SurvexBlocks now importing in deatil

core/models_survex.py

@@ -99,6 +99,7 @@ class SurvexBlockLookUpManager(models.Manager):
 class SurvexBlock(models.Model):
     objects = SurvexBlockLookUpManager()
     name       = models.CharField(max_length=100)
+    title      = models.CharField(max_length=100)
     parent     = models.ForeignKey('SurvexBlock', blank=True, null=True,on_delete=models.SET_NULL)
     cave       = models.ForeignKey('Cave', blank=True, null=True,on_delete=models.SET_NULL)
     

core/views_caves.py

@@ -78,6 +78,8 @@ def caveKey(x):
     Note that cave kataster numbers are not generally integers.
     This needs to be fixed make a decent sort order.
     """ 
+    if not x.kataster_number:
+        return "~"
     return x.kataster_number
 
 def getnotablecaves():