EF: Extension method for fetching entities by their ID

Here's a handy extension method which lets you get an entity from an object context given the entity's ID:

public static T GetEntityById(this ObjectContext context, int id)

{

EntityType type = (from meta in context.MetadataWorkspace.GetItems(DataSpace.CSpace)

where meta.BuiltInTypeKind == BuiltInTypeKind.EntityType

select meta)

.OfType()

.Where(e => e.Name == typeof(T).Name).Single();

EntityKey key = new EntityKey(context.GetType().Name + "." + typeof(T).Name, "Id", id);

return (T)context.GetObjectByKey(key);

}