From 7ce0c77a73adf9510b4a7b007cdd59e5913595f2 Mon Sep 17 00:00:00 2001
From: Stephan Porada <sporada@uni-bielefeld.de>
Date: Wed, 14 Oct 2020 10:42:13 +0200
Subject: [PATCH] Avoid error if query did not yield any results.

---
 .../static/js/modules/corpus_analysis/client/callbacks.js    | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/web/app/static/js/modules/corpus_analysis/client/callbacks.js b/web/app/static/js/modules/corpus_analysis/client/callbacks.js
index e2838204..e5f2e668 100644
--- a/web/app/static/js/modules/corpus_analysis/client/callbacks.js
+++ b/web/app/static/js/modules/corpus_analysis/client/callbacks.js
@@ -39,16 +39,17 @@ function saveQueryData(...args) {
     results.data.matches.push(...payload.chunk.matches);
     results.data.addData(payload.chunk.cpos_lookup, 'cpos_lookup');
     results.data.addData(payload.chunk.text_lookup, 'text_lookup');
-    console.log(payload.chunk.text_lookup);
      /**
       * Increment match_counts per text in a global results varaible because
       * they are coming in chunkwise.
       */
-    for (let [text_key, value] of Object.entries(payload.chunk.text_lookup)) {
+    if (payload.chunk.text_lookup) {
+      for (let [text_key, value] of Object.entries(payload.chunk.text_lookup)) {
         if (!(text_key in results.tmp_match_counts)) {
           results.tmp_match_counts[text_key] = {match_count: 0};
         }
         results.tmp_match_counts[text_key].match_count += payload.chunk.text_lookup[text_key].match_count;
+      }
     }
     results.data.cpos_ranges = payload.chunk.cpos_ranges;
     let queryFormElement = document.querySelector('#query-form');