title: Mongoose how to update entire object back to database
body: <p>From a Products collection (Mongoose Schema) I get all products belonging to a specific dealer into a javascript array of objects.</p>
  
  <p>Later, after remove, update and add some items, I need to take back this object into the collection with all changes.</p>
  
  <p>There is some all-in-one way quick and elegant to performance this action in Mongoose or MongoDB?</p>
  
  <p>Thanks! </p>