public TEntity Clone(TEntity entity)
{
var result = new TEntity();
foreach (var column in MapExtensions.OwnedColumns(this.configuration.GetMap <TEntity>(), true))
{
var prop = this.entityType.GetProperty(column.Name);
if (column.Type.IsValueType())
{
prop.SetValue(result, prop.GetValue(entity));
}
else if (column.Type == typeof(string))
{
var val = prop.GetValue(entity) as string;
if (val != null)
{
val = new string(val.ToCharArray());
}
prop.SetValue(result, val);
}
else if (column.Relationship == RelationshipType.ManyToOne || column.Relationship == RelationshipType.OneToOne)
{
// all we want here is to clone the entity and just leave the primary key on
var val = prop.GetValue(entity);
if (val != null)
{
var map = column.Relationship == RelationshipType.ManyToOne ? column.ParentMap : column.OppositeColumn.Map;
var primaryKey = map.GetPrimaryKeyValue(val);
var field = this.entityType.GetField(column.DbName);
field.SetValue(result, primaryKey);
}
else
{
if (!column.IsNullable)
{
throw new InvalidOperationException(
string.Format(
"The property {0} on {1} is marked as not nullable. You must add some data for it",
column.Name,
result.GetType()));
}
}
}
}
return(result);
}