fix(utils): prevent translation crash on primitive arrays

Author: Mohammed-AlSharafi

.changeset/fuzzy-nails-walk.md

@@ -0,0 +1,5 @@
+---
+"@medusajs/utils": patch
+---
+
+fix: Prevent translation crash when entity contains arrays of primitive values (e.g. strings)

packages/core/utils/src/translations/__tests__/apply-translations.spec.ts

@@ -360,4 +360,21 @@ describe("applyTranslations", () => {
     expect(inputObjects[0].category.name).toBe("Translated Category")
     expect(inputObjects[0].category.parent.name).toBe("Translated Parent")
   })
+
+  it("should gracefully handle arrays of primitives without crashing", async () => {
+    const data = [
+      {
+        id: "obj_1",
+        documents: ["/path/to/file.pdf", "/path/to/other.pdf"],
+      },
+    ]
+
+    await applyTranslations({
+      localeCode: "ar",
+      objects: data,
+      container: mockContainer as any,
+    })
+
+    expect(data[0].documents).toHaveLength(2)
+  })
 })

packages/core/utils/src/translations/apply-translations.ts

@@ -12,7 +12,7 @@ const excludedKeys = [
 ]
 
 function canApplyTranslationTo(object: Record<string, any>) {
-  return "id" in object && !!object.id
+  return isObject(object) && "id" in object && !!object.id
 }
 
 function gatherIds(object: Record<string, any>, gatheredIds: Set<string>) {