New selected field movement

src/data/repositories.rs

@@ -215,6 +215,10 @@ impl<T: EntityData + Clone + Send + Sync, R: Repository<T, D>, D: DbLayer<T>> Qu
     pub fn len(&self) -> usize {
         self.cache.len()
     }
+    
+    pub fn get(&self, index: usize) -> Option<EntityHandle<T>> {
+        self.cache.get(index).cloned()
+    }
 }
 
 impl<T: EntityData + Clone + Send + Sync, R: Repository<T, D>, D: DbLayer<T>> Index<usize>