fix no category

diff --git a/teleforma/models.py b/teleforma/models.py
index 28a02a4c0d2f4284cd946c7881e3f71a6a2f712f..2322afc1986338bfbf71e8dbbfa5fd7317e438d5 100755 (executable)
--- a/teleforma/models.py
+++ b/teleforma/models.py
@@ -307,7 +307,10 @@ class Training(Model):
     obligation      = BooleanField(_('obligation'))
 
     def __unicode__(self):
-        return self.code + ' - ' + self.category.name
+        code = self.code
+        if self.category:
+            code += ' - ' + self.category.name
+        return code
 
     class Meta:
         db_table = app_label + '_' + 'training'