From 3d3b153f42da30caab130a84b3eb7c3b8c3dd05b Mon Sep 17 00:00:00 2001
From: zsloan
Date: Tue, 8 Jun 2021 19:12:28 +0000
Subject: Fix issue where some groups apparently don't have samplelists

---
 wqflask/wqflask/export_traits.py | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/wqflask/wqflask/export_traits.py b/wqflask/wqflask/export_traits.py
index a22d6acc..5459dc31 100644
--- a/wqflask/wqflask/export_traits.py
+++ b/wqflask/wqflask/export_traits.py
@@ -65,14 +65,18 @@ def export_search_results_csv(targs):
     traits_by_group = sort_traits_by_group(trait_list)
 
     file_list = []
-    for group in list(traits_by_group.keys()):
+    for group in traits_by_group:
         group_traits = traits_by_group[group]
+        samplelist = group_traits[0].dataset.group.samplelist
+        if not samplelist:
+            continue
+
         buff = io.StringIO()
         writer = csv.writer(buff)
         csv_rows = []
 
         sample_headers = []
-        for sample in group_traits[0].dataset.group.samplelist:
+        for sample in samplelist:
             sample_headers.append(sample)
             sample_headers.append(sample + "_SE")
 
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