Hi,
I am currently working on a project where I am using Fluent NHibernate
for the first time. I have a class named "Download" which has an
inherited child "ProcessedDownload". In my business logic the
downloads are processed and then should be stored as entity of type
"ProcessedDownload". Can someone give me a hint how to create an
"ProcessedDownload" entity based on a loaded "Download" entity and
then save this entity keeping the id of the original "Download" entity
and not creating a new entity with a new id?
Thanks in advance.
Code:
public class DownloadMap : ClassMap<Download>
{
public DownloadMap()
{
Id(x => x.ID)
.GeneratedBy.Native();
Map(x => x.Name)
.Not.Nullable();
Map(x => x.Size)
.Not.Nullable();
Map(x => x.CreationTime)
.Not.Nullable();
Map(x => x.ProcessedTime);
Map(x => x.Status)
.CustomTypeIs(typeof(DownloadStatusType));
References(x => x.Customer)
.WithForeignKey()
.LazyLoad()
.Not.Nullable()
.Cascade.All();
References(x => x.DownloadContent)
.WithForeignKey()
.LazyLoad()
.Not.Nullable()
.Cascade.All();
JoinedSubClass("Download_Id",
ProcessedDownloadMap.AsJoinedSubClass());
}
}
public class DownloadContentMap : ClassMap<DownloadContent>
{
public DownloadContentMap()
{
Id(x => x.ID)
.GeneratedBy.Native();
Map(x => x.Content)
.Access.AsCamelCaseField(Prefix.Underscore)
.Not.Nullable()
.CustomSqlTypeIs("varbinary(MAX)");
}
}
public class ProcessedDownloadMap
{
public static Action<JoinedSubClassPart<ProcessedDownload>>
AsJoinedSubClass()
{
return part =>
{
part.Map(x => x.DownloadTime)
.Not.Nullable();
part.Map(x => x.DownloadBeginTime);
part.Map(x => x.DownloadEndTime);
part.References(x => x.Equipment)
.LazyLoad()
.Not.Nullable()
.Cascade.All();
part.References(x => x.Customer)
.LazyLoad()
.Not.Nullable()
.Cascade.All();
};
}
}
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