From c5f78421c50dc7c9e4801ad7bf9583674c29e1ba Mon Sep 17 00:00:00 2001
From: Frederick Muriuki Muriithi
Date: Thu, 9 Dec 2021 06:25:10 +0300
Subject: Prevent error on no result. Fix indexing

Issue:
https://github.com/genenetwork/gn-gemtext-threads/blob/main/topics/gn1-migration-to-gn2/partial-correlations.gmi

* If the dataset name is not found, don't cause an exception, instead, return
  the provided search name.
* Use the correct inner object
---
 gn3/computations/partial_correlations.py |  2 +-
 gn3/db/datasets.py                       | 11 +++++++----
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/gn3/computations/partial_correlations.py b/gn3/computations/partial_correlations.py
index ced44a4..719c605 100644
--- a/gn3/computations/partial_correlations.py
+++ b/gn3/computations/partial_correlations.py
@@ -309,7 +309,7 @@ def compute_partial(
             primary,
             tuple(targ for targ in targ_vals if targ is not None),
             tuple(cont for i, cont in enumerate(control_vals)
-                  if target[i] is not None))
+                  if target[0][i] is not None))
         covariates = "z" if datafrm.shape[1] == 3 else [
             col for col in datafrm.columns if col not in ("x", "y")]
         ppc = pingouin.partial_corr(
diff --git a/gn3/db/datasets.py b/gn3/db/datasets.py
index e4c779a..c50e148 100644
--- a/gn3/db/datasets.py
+++ b/gn3/db/datasets.py
@@ -26,10 +26,13 @@ def retrieve_probeset_trait_dataset_name(
                 "threshold": threshold,
                 "name": name
             })
-        return dict(zip(
-            ["dataset_id", "dataset_name", "dataset_fullname",
-             "dataset_shortname", "dataset_datascale"],
-            cursor.fetchone()))
+        res = cursor.fetchone()
+        if res:
+            return dict(zip(
+                ["dataset_id", "dataset_name", "dataset_fullname",
+                 "dataset_shortname", "dataset_datascale"],
+                res))
+        return {"dataset_id": None, "dataset_name": name, "dataset_fullname": name}
 
 def retrieve_publish_trait_dataset_name(
         threshold: int, name: str, connection: Any):
-- 
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