Question

I have 3 tables:

Table: Company, Columns: Id, Name

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Table: User, Columns: Id, Name, CompanyId

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Table: CompanyOwnerInfo, Column: Id, CompanyId, OwnerName…..

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CompanyId column in both User and CompanyOwnerInfo tables are mapping to Company.Id

My question is how to create a One-to-One mapping for User and CompanyOwnerInfo table without Company table involved? because when I use User object to getting CompanyOwnerInfo there is no necessary to join the Company table?

Answer 1

public UserMap()
{

    References(x => x.Company, "CompanyId");

    References(x => x.CompanyOwnerInfo, "CompanyId")
        .PropertyRef(compOwner => compOwner.Company)
        .Fetch.Join()
        .Not.LazyLoad()   // if needed
        .ReadOnly();      // important otherwise you have Exception on save because both References want to write to the same column
}