From 0df69dc59cc64f1823c7f8f297173a8e7811a69f Mon Sep 17 00:00:00 2001
From: Valentin Kuznetsov <vkuznet@gmail.com>
Date: Sun, 2 Jun 2024 08:11:16 -0400
Subject: [PATCH] Fix child look-up

---
 dbs/children.go             | 5 +++++
 static/sql/select_child.sql | 6 ++++++
 2 files changed, 11 insertions(+)
 create mode 100644 static/sql/select_child.sql

diff --git a/dbs/children.go b/dbs/children.go
index 6b47079..2431495 100644
--- a/dbs/children.go
+++ b/dbs/children.go
@@ -19,6 +19,11 @@ func (a *API) GetChild() error {
 	if err != nil {
 		return Error(err, LoadErrorCode, "", "dbs.children.GetChild")
 	}
+	if val, ok := a.Params["did"]; ok {
+		if val != "" {
+			conds, args = AddParam("did", "PDS.did", a.Params, conds, args)
+		}
+	}
 
 	stm = WhereClause(stm, conds)
 
diff --git a/static/sql/select_child.sql b/static/sql/select_child.sql
new file mode 100644
index 0000000..5ee3dab
--- /dev/null
+++ b/static/sql/select_child.sql
@@ -0,0 +1,6 @@
+SELECT
+    D.did CHILD_DID,
+    PDS.did
+FROM DATASETS D
+LEFT OUTER JOIN PARENTS DSP ON DSP.DATASET_ID = D.DATASET_ID
+LEFT OUTER JOIN DATASETS PDS ON PDS.DATASET_ID = DSP.PARENT_ID