Either
In your Promote-Person-to-SubscriberPerson process
Delete/retire the original person, and create the new SubscriberPerson
Or
User a different model, such as Person Subscribes-To-Something
(Has-a-subscription)
On Tuesday, July 10, 2012 5:52:34 PM UTC+2, par anon wrote:
> I have a mapping question related to Table Per Type. I have following
> hierarchy:
>
> - Person (maps to table person)
> - A person can be a Subscriber (maps to table Subscriber)
> - A person can be a Service Provider (maps to table ServiceProvider)
> - A person can be {other things}
>
>
>
> This maps to respective domain objects. The current mapping looks
> something like below:
> public class PersonMapping : ClassMap<Models.Person>
> {
> public PersonMapping()
> {
> Table("Person");
> Id(p => p.Id);
> ... other props
> }
> }
>
> public class SubscriberMapping : SubclassMap<Models.Subscriber>
> {
> public SubscriberMapping()
> {
> Table("Subscriber");
> KeyColumn("Id")
> ... other props
> }
>
> }
>
> public class ProviderMapping : SubclassMap<Models.Provider>
> {
> public ProviderMapping()
> {
> Table("ServiceProvider");
> KeyColumn("Id");
> ... other props
> }
> }
>
>
> The problem I am facing is when a person exists but not as a Subscriber.
>
> The behavior that we are trying to implement is:
>
> Add Subscriber:
> - Check if Person exists by <well defined criteria>
> - If Person was found insert into subscriber table
> - If Person was not found
> - Create Person
> - Insert into subscriber table
>
> Can this behavior be achieved using mapping?
>
> Thanks,
> PG
>
>
>
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