Extract location data when scanning barcode (#774)

- Closes https://github.com/inventree/inventree-app/issues/772

assets/release_notes.md

@@ -1,3 +1,8 @@
+## 0.xx.y - Month Year
+---
+
+- Auto-fill location data when receiving item via barcode scan
+
 ## 0.22.2 - February 2026
 ---
 

lib/barcode/purchase_order.dart

@@ -154,9 +154,12 @@ class POAllocateBarcodeHandler extends BarcodeHandler {
       return onBarcodeUnknown(data);
     }
 
+    // Extract field data from the returned result
     dynamic supplier_part = data["supplierpart"];
+    dynamic location = data["location"];
 
     int supplier_part_pk = -1;
+    int location_pk = -1;
 
     if (supplier_part is Map<String, dynamic>) {
       supplier_part_pk = (supplier_part["pk"] ?? -1) as int;
@@ -164,6 +167,10 @@ class POAllocateBarcodeHandler extends BarcodeHandler {
       return onBarcodeUnknown(data);
     }
 
+    if (location is Map<String, dynamic>) {
+      location_pk = (location["pk"] ?? -1) as int;
+    }
+
     // Dispose of the barcode scanner
     if (OneContext.hasContext) {
       OneContext().pop();
@@ -177,6 +184,10 @@ class POAllocateBarcodeHandler extends BarcodeHandler {
     fields["part"]?["hidden"] = false;
     fields["part"]?["value"] = supplier_part_pk;
 
+    if (location_pk > 0) {
+      fields["location"]?["value"] = location_pk;
+    }
+
     InvenTreePOLineItem().createForm(
       context,
       L10().lineItemAdd,