NHibernate: Select item with entry in element bag

Question

I have a class with property of list.

public class Paperboy{
     private int _id;
     private string _lastname;
     private string _firstname;
     privat         


        

Answer 1

Seems like NHibernate < 4 has a bug with creating the join. With the help of Radim Köhler and firo (see other Post) I ended up using HQL:

select
   paperboy
from
   Paperboy as paperboy 
left join 
   paperboy._additionalPhoneNumbers number
where
   paperboy._mobile = :nr or
   paperboy._phone = :nr or
   number = :nr

It is also possible to avoid the join by using :nr in elements(paperboy._additionalPhoneNumbers) but than I could not replace some characters in the additional number.

Answer 2

Almost the same answer I just gave to previous NHibernate question: QueryOver IList<string> property

Based on this Q & A: NHibernate How do I query against an IList property?

Where I tried to show that (as mentioned in the documentation) we can use magical word ".elements":

17.1.4.1. Alias and property references

So the query which will touch the string elements in your case

//or.Add(Restrictions.Eq("AdditionalPhoneNumbers", number));
or.Add(Restrictions.Eq("AdditionalPhoneNumbers.elements", number));

And that will support filtering IList<string>