Question

I am having trouble using CreateCriteria to add an outer join to a criteria query while using Fluent NHibernate with automapping.

Here are my entities –

public class Table1 : Entity
    {
        virtual public int tb1_id { get; set; }
        virtual public DateTime tb1_date_filed { get; set; }
    .
    .
    .
        virtual public IList<Table2> table2 { get; set; }
    }

public class Table2: Entity
    {
        public virtual int tb2_id { get; set; }
        public virtual int tb2_seqno { get; set; }
        .
        .
        .
        public virtual Table2 table2 { get; set; }
    }

I try to use the following to add an outer join to my criteria query –

CreateCriteria("Table2", NHibernate.SqlCommand.JoinType.LeftOuterJoin);

But I am getting an error –

{"EIX000: (-217) Column (tbl1_id) not found in any table in the query (or SLV is undefined)."}

So it seems that it is trying to automatically set the id of the second table, but doesn’t know what to set it to. Is there a way that I can specifically set the id? Here is my Session –

var persistenceModel = AutoMap.AssemblyOf<Table1>()
                .Override<Table1>(c => {    
                    c.Table("case");
                    c.Id(x => x.id).Column("tbl1_id");
                })
                .Where(t => t.Namespace == "MyProject.Data.Entities")
                .IgnoreBase<Entity>();

Hope that makes some sense. Thanks for any thoughts.

Answer 1

I added a HasMany option to the override for my first table to define the relationship to my second table. I then added an override for my second table which defines the id column for that table.

Thank