Sanity-check the reference before parsing

Author: rambo

project/examples/handlers.py

@@ -166,6 +166,10 @@ def import_generic_transaction(self, at, lt):
         return lt
 
     def import_tmatch_transaction(self, at, lt):
+        if len(at.reference) < 2: # To avoid indexerrors
+            return None
+        if at.reference[0:2] == "RF": # ISO references, our lookup won't work with them, even worse: there will be exceptions
+            return None
         # In  this example the last meaningful number (last number is checksum) of the reference is used to recognize the TransactionTag
         try:
             lt.tag = TransactionTag.objects.get(tmatch=at.reference[-2])