加入與NHibernate和QueryOver

Question

多個表我有這個表：

Person -> PersonFavorites, PersonCompany 
PersonCompany -> Company 

我現在必須做如下選擇與NHibernate和QueryOver：

select * from Person 
    inner join PersonFavorites on Person.Id = PersonFavorites.PersonId 
    inner join PersonCompany on Person.Id = PersonCompany.PersonId 
    inner join Company on Company.Id = PersonCompany.CompanyId 
where ... 

有人可以給我一個樣，怎麼我能做到嗎？ - 我的問題是，我必須加入多個Tables Person - > PersonCompany - > Company。加入人員 - > PersonCompany和Person - > PersonFavorites沒有問題 - 但是從PersonCompany - > Company的下一步。

Answer 1

映射應該是類似於以下：

實體

class Person 
{ 
    Collection<PersonFavorites> favorites; 
    Collection<PersonCompany> companies; 
} 

class PersonFavorite 
{ 
    Person person; 
    Favorite favorite; 
} 

class PersonCompany 
{ 
    Person person; 
    Company company; 
} 

查詢

Person personAlias = null; 
PersonFavorites personfavouriteAlias = null; 
PersonCompany personCompanyAlias = null; 
Company companyAlias = null; 
Favorite favouriteAlias = null; 

var query = Session.QueryOver<Person>(() => personAlias) 
    .joinAlias(() => personAlias.favorites,() => personfavouriteAlias) 
    .joinAlias(() => personAlias.companies,() => personCompanyAlias) 
    .joinAlias(() => personfavouriteAlias.Favourite,() => favouriteAlias) 
    .joinAlias(() => personCompanyAlias.Company,() => companyAlias)