updates on the reverse logistics

controllers/adminController.go

@@ -3166,6 +3166,13 @@ func AdminUpdateConsignmentStatus(c *fiber.Ctx) error {
 		return utils.NotFound(c, "consignment not found")
 	}
 
+	// Guard the move (reverse logistics plan, B1): this used to write any
+	// string onto any parcel, including Delivered onto a cancelled one.
+	if msg := checkGenericStatusChange(consignment.Status, req.Status); msg != "" {
+		tx.Rollback()
+		return utils.BadRequest(c, msg)
+	}
+
 	consignment.Status = req.Status
 	consignment.Updatedat = time.Now()
 	if err := tx.Save(&consignment).Error; err != nil {