Fixed a long-time bug where the Whoosh backend didn't have a log attribute.

Author: toastdriven

haystack/backends/whoosh_backend.py

@@ -1,3 +1,4 @@
+import logging
 import os
 import re
 import shutil
@@ -81,6 +82,8 @@ def __init__(self, site=None):
         if self.use_file_storage and not hasattr(settings, 'HAYSTACK_WHOOSH_PATH'):
             raise ImproperlyConfigured('You must specify a HAYSTACK_WHOOSH_PATH in your settings.')
 
+        self.log = logging.getLogger('haystack')
+
     def setup(self):
         """
         Defers loading until needed.