Could you ask for a Tennant in the account constructor and just copy it's
id? Seems that would force you to ensure that the Tennant exists by
querying for it beforehand?
Alternatively add a foreign key at the database level, then catch any
foreign key exceptions when committing the changes?
On 14 Nov 2013 06:11, "Gleb Chermennov" <thebitteren...@gmail.com> wrote:
> I'm afraid that's not an option - if your component has a FK, it's not a
> component any more, but an entity.
>
> воскресенье, 13 октября 2013 г., 17:12:50 UTC+4 пользователь Oğuzhan EREN
> написал:
>>
>>
>> Hi,
>>
>> I need map TenantId (component of Account) as Foreign Key (Tenant). Db
>> must know TenantId is primary key of Tenant. When I add new record to
>> Account, nhibernate or db must validate TenantId value exists on Tenants
>> table.
>>
>> I don't want keep Reference, only Foreign Key
>>
>> Session.Save(new Account(new TenantId("guid-of-exists-tenant"),new
>> AccountId("guid"))
>>
>>
>> public class Entity<TId>
>> {
>> public virtual TId {get;set;}
>> }
>>
>> public class TenantId
>> {
>> public virtual Guid Id {get;set;}
>> }
>>
>> public class Tenant
>> : Entity<TenantId>
>> {
>> public string Name {get;set;}
>> }
>>
>> public class AccountId
>> {
>> public virtual Guid Id {get;set;}
>> }
>>
>> public class Account
>> : Entity<AccountId>
>> {
>> public Account(TenantId tenantId,AccountId accountId)
>> {
>> TenantId = tenantId;
>> Id= accountId;
>> }
>>
>> public TenantId TenantId {get;set;}
>> public string AccountName {get;set;}
>> }
>>
>> public class TenantMap
>> {
>> public TenantMap()
>> {
>> CompositeId<TenantId>(t => t.Id).KeyProperty(x => x.Id);
>> Map(x=>x.Name);
>> }
>> }
>>
>> public class AccountMap
>> {
>> public AccountMap()
>> {
>> CompositeId<AccountId>(t => t.Id).KeyProperty(x => x.Id);
>> Component(x=>x.TenantId,m=>{
>> m.Map(x=>x.Id).Not.Nullable();
>> });
>> Map(x => x.AccountName).Not.Nullable();
>> }
>> }
>>
>> --
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