add missing open_index import

verse/search/search_index.py

@@ -1,6 +1,6 @@
 import os
 from whoosh.fields import *
-from whoosh.index import create_in
+from whoosh.index import create_in, open_dir
 from whoosh.qparser import QueryParser
 from models.distribusi_model import Distribusis
 from models.distribusi_file_model import DistribusiFiles
@@ -28,7 +28,7 @@ def init_search_index(APP):
 
     @scheduler.task("interval", id="update", minutes=60)
     def update_search_index():
-        ix = index.open_dir(SEARCH_DATA_DIR)
+        ix = open_dir(SEARCH_DATA_DIR)
         update_writer = ix.writer()
         index_distribusis(APP, update_writer)
         index_distribusi_files(APP, update_writer)