queryover and (x like 'a' or y like 'a')

Question

Hi Is there any elegant way of combining \'like\' and \'or\' when i\'m using queryover API? for \'like\' there is something like:

 query.WhereRestrictionOn(         


        

Answer 1

You could use the NHibernate Disjunction class to do this in a more elegant (IMHO) fashion:

var disjunction= new Disjunction();

disjunction.Add(Restrictions.On(e => e.Code).IsLike(codePart));
disjunction.Add(Restrictions.On(e => e.Description).IsLike(codePart));
//(and so on)

and then:

query.Where(disjunction)

Each "OR" is a separate instruction, which helps if you want to add the predicates conditionally.