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Fluent Nhibernate One to One mapping with non primary key


Fluent Nhibernate One to One mapping with non primary key

By : Stephan
Date : November 19 2020, 12:41 AM
this one helps. OK, with assignable ID we can do it like this. Firstly we should be sure, that the ID is assigned, so we can adjust the getter of the ItemSaleCode like this:
code :
public class ItemSaleDetail
{
    string _itemSaleCode;

    public virtual string ItemSaleCode
    {
        get { return _itemSaleCode ?? SaleParent.SaleCode ; }
        set { _itemSaleCode  = value; }
    }
<id name="ItemSaleCode" column="SaleCode" type="String" generator="assigned" />
<one-to-one name="SaleParent" class="ItemSale"
    constrained="true" property-ref="SaleCode" />
...
public ItemSaleDetailMap()
{
    ...
    Id(x => x.ItemSaleCode)
        .CustomType<String>()
        .Column("SaleCode")
        .GeneratedBy.Assigned();

    HasOne(x => x.SaleParent)
       .ProeprtyRef("SaleCode")
       .Constrained(); 
}


public ItemSaleMap()
{
    References(x => x.SaleDetail)
       .Column("SaleCode")
       .Unique()
       .Cascade.All();
    Map(x => x.SaleCode)
       .Column("SaleCode")
       .Not.Update()
       .Not.Insert()
}


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Fluent NHibernate join tables in mapping not using primary key

Fluent NHibernate join tables in mapping not using primary key


By : jmodell
Date : March 29 2020, 07:55 AM
will be helpful for those in need You can try mapping sam_employees as an entity and use a References mapping with a join type fetch.
Mapping Fluent NHibernate where the primary key should also be a foreign key

Mapping Fluent NHibernate where the primary key should also be a foreign key


By : Onurb
Date : March 29 2020, 07:55 AM
it helps some times This seems to be a one-to-one relationship and would therefore be mapped using HasOne in FNH.
Example
code :
    public UserCredentialMap()
    {
        Id(x => x.Id)
            .Column("UserId")
            .GeneratedBy.Foreign("User");

        HasOne(x => x.User).Constrained();
    }
public UserCredentialMap()
{
    Id(x => x.Id, "UserId");

    References(x => x.User, "UserId")
            .Not.Update()
            .Not.Insert();
}
Fluent NHibernate Mapping a join table without a primary key

Fluent NHibernate Mapping a join table without a primary key


By : Akki
Date : March 29 2020, 07:55 AM
Does that help In case,
the pairing table does not have its own ID column has only two columns, foreign keys
code :
public class NQuestion
{
    public virtual int Id { get; set; }
    ...
    //public virtual IList<NQuestionAsset> Assets { get; set; }
    public virtual IList<Asset> Assets { get; set; }
public QuestionMap()
{
    ...
    HasManyToMany(x => x.Assets)
         .Table("QuestionAsset")
         .ParentKeyColumn("Asset")
         .ChildKeyColumn("Question")
         ...;
Fluent-NHibernate table mapping with no primary key

Fluent-NHibernate table mapping with no primary key


By : user3769661
Date : March 29 2020, 07:55 AM
Hope this helps In Oracle at least, I have used "ROWID" for this. For mssql you might use the "ROW_NUMBER()" builtin function for readonly access to the table, but I haven't tried that...
Non primary key Identity AutoIncrement Mapping using Fluent NHibernate

Non primary key Identity AutoIncrement Mapping using Fluent NHibernate


By : Nichita Diaconu
Date : March 29 2020, 07:55 AM
will be helpful for those in need On the off-chance you are still after an answer for this question, you may be able to find some help in this SO post: fluent nhibernate auto increment non key (Id) property
In Hibernate:
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