Support other slugifier function

docs/source/ref/settings.rst

 
 Default: ``/tmp``
 
+OSCAR_SLUG_FUNCTION
+-----------------
+
+Default: django.template.defaultfilters.slugify
+
+Slugify function
+
+Example:
+    def some_slugify(value)
+        pass
+    OSCAR_SLUG_FUNCTION = some_slugify
+
 Deprecated settings
 ===================
 

oscar/core/utils.py

 from unidecode import unidecode
-from django.template import defaultfilters
 from django.conf import settings
 
 
     if hasattr(settings, 'OSCAR_SLUG_MAP'):
         for k, v in settings.OSCAR_SLUG_MAP.items():
             value = value.replace(k, v)
+
+    # Allow an alternative slugify function to be specified
+    if hasattr(settings, 'OSCAR_SLUG_FUNCTION'):
+        slugifier = settings.OSCAR_SLUG_FUNCTION
+    else:
+        from django.template import defaultfilters
+        slugifier = defaultfilters.slugify
+
     # Use unidecode to convert non-ASCII strings to ASCII equivalents where
     # possible.
-    value = defaultfilters.slugify(
+    value = slugifier(
         unidecode(unicode(value)))
+
     # Remove stopwords
     if hasattr(settings, 'OSCAR_SLUG_BLACKLIST'):
         for word in settings.OSCAR_SLUG_BLACKLIST:
             value = value.replace(word + '-', '')
             value = value.replace('-' + word, '')
+
     return value