Nhibernate + QueryOver: filter with Where ignoring sensitive

Question

I am trying to build a simple query in nHibernate with QueryOver but I want it to convert everything lower-case or ignore sensitive:

Domain.User User = Sessi         


        

Answer 1

public static class QueryOverExtension
{
    /// 

    /// This method is used in cases where the root type is required
    /// Example: .WhereEqualInsensitive(t => t.Property, stringValue)
    /// 
    public static IQueryOver WhereEqualInsensitive(this IQueryOver queryOver, Expression> path, string value)
    {
        return queryOver.Where(Restrictions.Eq(Projections.SqlFunction("upper", NHibernateUtil.String, Projections.Property(path)), value.ToUpper()));
    }

    /// 

    /// This method is used in cases where the root type is NOT required
    /// Example: .WhereEqualInsensitive(() => addressAlias.DefaultEmail, contactEmailAddress)
    /// 
    public static IQueryOver WhereEqualInsensitive(this IQueryOver queryOver, Expression> path, string value)
    {
        return queryOver.Where(Restrictions.Eq(Projections.SqlFunction("upper", NHibernateUtil.String, Projections.Property(path)), value.ToUpper()));
    }
}

Usages:

Session.QueryOver()
           .WhereEqualInsensitive(t => t.Property, value)

ChildDTO childAlias = null;
Session.QueryOver()
           .JoinAlias(t => t.ChildDTO, () => childAlias)
           .WhereEqualInsensitive(() => myAlias.Property, value)