Where ... In ... Or Where ... In ... with NHibernate IQueryOver

Question

I'm trying to emulate subject query with NHibernate's IQueryOver. So far I have

var q = CurrentSession.QueryOver<ObjectModel.Order>().
    WhereRestrictionOn(o => o.Buyer.ID).IsIn(partyIDs).
    WhereRestrictionOn(o => o.Seller.ID).IsIn(partyIDs);

This, however, generates an and query, whereas I need to have an or operator between two where clauses.

How is this done with IQueryOver?

score 9 · Accepted Answer · answered May 16 '11 at 15:32

9

As it usually is, found question soon after explaining the problem to general public. Thanks, guys!

var q = CurrentSession.QueryOver<ObjectModel.Order>();

q.RootCriteria.Add(Restrictions.Or(
    Restrictions.On<ObjectModel.Order>(o => o.Buyer.ID).IsIn(partyIDs),
    Restrictions.On<ObjectModel.Order>(o => o.Seller.ID).IsIn(partyIDs)));

answered May 16 '11 at 15:32

Anton Gogolev

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3

you can check this too Anton [queryover and (x like 'a' or y like 'a')](http://stackoverflow.com/questions/4541546/queryover-and-x-like-a-or-y-like-a) – Bastardo May 16 '11 at 15:36
@Burn Well worth a separate answer. Thanks! – Anton Gogolev May 16 '11 at 15:43

Where ... In ... Or Where ... In ... with NHibernate IQueryOver

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