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Asked: 2026-05-11T07:44:07+00:00

I am trying to build a messaging system and for this i have the

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I am trying to build a messaging system and for this i have the table definition below

Message

Id From To Body ParentId // Subcollection, i want to get Asnwers (Message.ParentId== Message.Id) IsRead

and i have this in the Message.cs

IList<Message> Answers;

I have tried this but it gives me all the messages and all the answers in the main collection.

But i dont want answers to be seen like a message (like the main item). 

<hibernate-mapping xmlns='urn:nhibernate-mapping-2.2' assembly='RealEstate.Core' namespace='RealEstate.Core.Domain'>   <class name='Message' table='Message' lazy='true'>     <id column='id' type='Int64' name='Id'>       <generator class='native' />     </id>     <property name='From' column='[From]' type='Int64' />     <property name='To' column='[To]' type='Int64' />     <property name='Body' column='Body' />     <property name='ParentId' column='ParentId' type='Int64' />     <property name='SenderType' column='SenderType' type='Byte' />     <property name='IsRead' column='IsRead' type='Boolean' />      <bag name='Answers' lazy='true' cascade='delete'>       <key column='ParentId' />       <one-to-many class='Message'/>     </bag>    </class> </hibernate-mapping>

How can this mapping be done, they are in the same table ?

Thank you very much

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1 Answer

  1. You want to map a tree ? Maybe this could help: how to map a tree in nhibernate

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