From a75350874b82e977e548be298cc476b2992df9a3 Mon Sep 17 00:00:00 2001
From: Ritchie Martori <ritchie@voxel51.com>
Date: Fri, 10 Jan 2025 15:58:49 -0700
Subject: [PATCH] coerce string and array empty values to null/None

---
 app/packages/core/src/plugins/SchemaIO/index.tsx | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/app/packages/core/src/plugins/SchemaIO/index.tsx b/app/packages/core/src/plugins/SchemaIO/index.tsx
index 6dc463ba9d..1ebcd196d4 100644
--- a/app/packages/core/src/plugins/SchemaIO/index.tsx
+++ b/app/packages/core/src/plugins/SchemaIO/index.tsx
@@ -20,6 +20,7 @@ export function SchemaIOComponent(props) {
 
   const onIOChange = useCallback(
     (path, value, schema, ancestors) => {
+      value = coerceValue(value, schema);
       const currentState = stateRef.current;
       const updatedState = cloneDeep(currentState);
       set(updatedState, path, cloneDeep(value));
@@ -63,6 +64,17 @@ export function SchemaIOComponent(props) {
   );
 }
 
+function coerceValue(value, schema) {
+  // coerce the value to None if it is an empty string or empty array
+  if (schema.type === "array" && Array.isArray(value) && value.length === 0) {
+    return null;
+  }
+  if (schema.type === "string" && value === "") {
+    return null;
+  }
+  return value;
+}
+
 registerComponent({
   name: "SchemaIOComponent",
   label: "SchemaIOComponent",