haystack index path fix

settings.py

@@ -56,17 +56,18 @@ ALDRYN_SEARCH_INDEX_BASE_CLASS = 'project.search.SearchIndex'
 
 HAYSTACK_CUSTOM_HIGHLIGHTER = 'project.search.Highlighter'
 HAYSTACK_DEFAULT_OPERATOR = 'OR'
+HAYSTACK_INDEX_PATH = os.path.join(DATA_ROOT, 'whoosh', 'index')
 HAYSTACK_CONNECTIONS = {
     'default': {
         'ENGINE': 'haystack.backends.whoosh_backend.WhooshEngine',
-        'PATH': os.path.join(BASE_DIR, 'data', 'whoosh', 'index', 'default'),
+        'PATH': os.path.join(HAYSTACK_INDEX_PATH, 'default'),
     },
 }
 for lang_code, lang in LANGUAGES:
     HAYSTACK_CONNECTIONS[lang_code] = {}
     HAYSTACK_CONNECTIONS[lang_code].update({
         'ENGINE': 'haystack.backends.whoosh_backend.WhooshEngine',
-        'PATH': os.path.join(BASE_DIR, 'data', 'whoosh', 'index', lang_code),
+        'PATH': os.path.join(HAYSTACK_INDEX_PATH, lang_code),
     })
 
 HAYSTACK_ROUTERS = ['aldryn_search.router.LanguageRouter', ]