/// <summary>
/// Demo of Updating a document.
/// </summary>
/// <param name="orders">The orders.</param>
private static void UpdateDocument(MongoCollection<Order> orders)
{
Console.WriteLine("\n\n======= Update Documents =======");
var selector = new {CustomerName = "Daffy Duck"};
var orderToUpdate = orders.FindOne(selector);
Console.WriteLine("Before Update: " + orderToUpdate);
// I'm in the money!
orderToUpdate.OrderAmount = 1000000.00;
// Update Daffy's account before Hasaan finds him.
orders.Save( orderToUpdate );
Console.WriteLine("After Update: " + orders.FindOne(selector));
}
/// <summary>
/// Demoes Updates a single field using an atomic Increment ($inc) operator.
/// </summary>
/// <param name="orders">The orders.</param>
private static void UpdateUsingAtomicIncrement( MongoCollection< Order > orders )
{
Console.WriteLine("\n\n======= Update Document using Increment =======");
var selector = new { CustomerName = "Daffy Duck" };
Console.WriteLine("Before Update: " + orders.FindOne(selector));
// Add 2000 to order amount on document matching selector.
orders.Update( selector, x=>x.Increment( o=>o.OrderAmount, 2000 ) );
Console.WriteLine("After Update: " + orders.FindOne(selector));
}
/// <summary>
/// Demos querying the collection.
/// </summary>
/// <param name="orders">The orders.</param>
private static void QueryFromCollection(MongoCollection<Order> orders)
{
Console.WriteLine("\n\n======= Query One Document =======");
// Create a specification to query the orders collection.
// Run the query.
Order result = orders.FindOne(new {});
Console.WriteLine(string.Format("Found: {0}", result));
}
