From 54cbe1753f95bb2dd3441ba5966c32ea63ffcbad Mon Sep 17 00:00:00 2001
From: Jan Szejko <jan.szejko@gmail.com>
Date: Thu, 23 Jun 2016 12:02:09 +0200
Subject: [PATCH] don't assume that aktywnosc/opis is non-empty

---
 apps/catalogue/models/book.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/apps/catalogue/models/book.py b/apps/catalogue/models/book.py
index 626dd9cc..09164a39 100755
--- a/apps/catalogue/models/book.py
+++ b/apps/catalogue/models/book.py
@@ -479,6 +479,8 @@ class Book(models.Model):
         # print '.',
         w1t = i1.xslt(t)
         for h in w1t.findall('//aktywnosc/opis'):
+            if len(h) == 0:
+                raise ParseError('Pusty element aktywnosc/opis')
             # FIXME assumption that every lesson has at most 9 parts
             if not h[0].text or not re.match(r'\d\.\s', h[0].text):
                 raise ParseError('Niepoprawny nagłówek (aktywnosc/opis): %s' % repr(h[0].text))
-- 
2.20.1