private static void ApplyChanges <TEntity>(TEntity root) where TEntity : class, IObjectWithState
{
using (var context = new BreakAwayContext())
{
context.Set <TEntity>().Add(root);
CheckForEntitiesWithoutStateInterface(context);
foreach (var entry in context.ChangeTracker
.Entries <IObjectWithState>())
{
IObjectWithState stateInfo = entry.Entity;
if (stateInfo.State == State.Modified)
{
entry.State = EntityState.Unchanged;
foreach (var property in stateInfo.ModifiedProperties)
{
entry.Property(property).IsModified = true;
}
}
else
{
entry.State = ConverterState(stateInfo.State);
}
entry.State = ConverterState(stateInfo.State);
}
context.SaveChanges();
}
}
private static void UseEdmMetadataTable()
{
using (var context = new BreakAwayContext())
{
var modelHash = EdmMetadata.TryGetModelHash(context);
Console.WriteLine("Current Model Hash: {0}", modelHash);
var databaseHash = context.Set <EdmMetadata>().Single().ModelHash;
Console.WriteLine("Current Database Hash: {0}", databaseHash);
var compatible = context.Database.CompatibleWithModel(throwIfNoMetadata: true);
Console.WriteLine("Model Compatible With Database?: {0}", compatible);
}
}
private static void InsertDestination()
{
var destination = new Destination
{
Country = "Indonesia",
Description = "EcoTourism at its best in exquisiste Bali",
Name = "Bali"
};
using (var context = new BreakAwayContext())
{
context.Destinations.Add(destination);
context.SaveChanges();
Console.WriteLine(context.Set <Destination>().FirstOrDefault().Description);
Console.WriteLine(context.Database.Connection.ConnectionString);
}
}
private static void ApplyChanges <TEntity>(TEntity root)
where TEntity : class, IObjectWithState
{
using (var context = new BreakAwayContext())
{
context.Set <TEntity>().Add(root);
CheckForEntitiesWithoutStateInterface(context);
foreach (var entry in context.ChangeTracker.Entries <IObjectWithState>())
{
IObjectWithState stateInfo = entry.Entity;
entry.State = ConvertState(stateInfo.State);
if (stateInfo.State == State.Unchanged)
{
var databaseValues = entry.GetDatabaseValues();
entry.OriginalValues.SetValues(databaseValues);
}
}
context.SaveChanges();
}
}