public void TestObjectsTracking()
{
var tracker = new ObjectsChangeTracker();
var a = new A();
tracker.RegisterObject(a);
a.f2 = 3;
var changes = tracker.GetChanges(a);
Assert.IsTrue(changes[0].name == "f2");
tracker.RegisterObject(a);
changes = tracker.GetChanges(a);
Assert.IsTrue(changes.Length == 0);
a.f1 = "new";
a.f2 = 13;
a.f3 = false;
for (int i = 0; i < 10; ++i)
{
tracker.GetChanges(a);
}
changes = tracker.GetChanges(a);
Assert.IsTrue(TestUtils.AreEqualArraysUnordered(new[] { "f1", "f2", "f3" }, changes.Select(c => c.name).ToArray()));
changes = tracker.GetChanges(new A());
Assert.IsNull(changes);
}
public void TestObjectsTracking()
{
var tracker = new ObjectsChangeTracker();
var a = new A();
tracker.RegisterObject(a);
a.f2 = 3;
var changes = tracker.GetChanges(a);
Assert.IsTrue( changes[0].name == "f2");
tracker.RegisterObject(a);
changes = tracker.GetChanges(a);
Assert.IsTrue(changes.Length == 0);
a.f1 = "new";
a.f2 = 13;
a.f3 = false;
for (int i = 0; i < 10; ++i)
{
tracker.GetChanges(a);
}
changes = tracker.GetChanges(a);
Assert.IsTrue(TestUtils.AreEqualArraysUnordered(new[] { "f1", "f2", "f3" }, changes.Select(c => c.name).ToArray()));
changes = tracker.GetChanges(new A());
Assert.IsNull(changes);
}
/// <summary>
/// Reads the single.
/// </summary>
/// <param name="reader">The reader.</param>
/// <param name="changeTracker">The change tracker.</param>
/// <returns>`0.</returns>
public TEntity ReadSingle(IDataReader reader, ObjectsChangeTracker changeTracker)
{
TEntity result = MapUsingState(reader, reader);
changeTracker?.RegisterObject(result);
return(result);
}
public void UpdateCustomer()
{
ObjectMapperManager objMan = new ObjectMapperManager();
Guid guid = Guid.NewGuid();
using (var ts = new TransactionScope())
using (var connection = CreateConnection())
{
var customer = DBTools.ExecuteReader(
connection,
"select top 1 * from [dbo].[Customers]",
null,
r => r.ToObject<Customer>()
);
var tracker = new ObjectsChangeTracker();
tracker.RegisterObject(customer);
customer.Address = guid.ToString();
DBTools.UpdateObject(
connection,
customer,
"Customers",
new[] { "CustomerID" },
tracker,
DbSettings.MSSQL
);
}
}
public static T ToObject<T>(this DbDataReader reader, string readerName, string[] excludeFields, ObjectsChangeTracker changeTracker)
{
T result = new DataReaderToObjectMapper<T>(readerName, null, excludeFields).MapUsingState(reader, reader);
if (changeTracker != null)
{
changeTracker.RegisterObject(result);
}
return result;
}
public T ReadSingle(DbDataReader reader, ObjectsChangeTracker changeTracker)
{
T result = reader.Read() ? MapUsingState(reader, reader) : default(T);
if (changeTracker != null)
{
changeTracker.RegisterObject(result);
}
return(result);
}
/// <summary>
/// Reads the collection.
/// </summary>
/// <param name="reader">The reader.</param>
/// <param name="changeTracker">The change tracker.</param>
/// <returns>IEnumerable{`0}.</returns>
public IEnumerable <TEntity> ReadCollection(IDataReader reader, ObjectsChangeTracker changeTracker)
{
while (reader.Read())
{
TEntity result = MapUsingState(reader, reader);
if (changeTracker != null)
{
changeTracker.RegisterObject(result);
}
yield return(result);
}
}