Linq to NHibernate wrapper issue using where statement
- by Jacob
I'am using wrapper to get some data from table users
IQueryable<StarGuestWrapper> WhereQuery =
session.Linq<User>().Where(u => u.HomeClub.Id == clubId && u.IsActive).Select(
u =>
new StarGuestWrapper()
{
FullName = u.Name + " " + u.LastName,
LoginTime = DateTime.Now,
MonthsAsMember = 2,
StarRating = 1,
UserPicture = u.Photo.PhotoData,
InstructorFullName = "Someone Xyz",
TalkInteractionDuringSession = true,
GoalInteractionDuringSession = false
});
I use this without a problem as a IQueryable so I can do useful things before actually running the query. Like :
WhereQuery.Skip(startRowIndex).Take(maximumRows).ToList();
and so on.
The problem occurs using 'where' statement on query.
For example:
WhereQuery.Where(s => s.StarRating == 1)
will throw an exception in runtime that 'StarRating' doesn't exist in User table - of course it doesn't it's a wrappers property. I will work if I materialize query by
WhereQuery.AsEnumerable().Where(s => s.StarRating == 1)
but then it loses all the sens of using IQueryable and I don't want to do this.
What is strange and interesting that not all properties from wrapper throw error, all the bool values can be used in where statement. Example :
WhereQuery.Where(s => s.TalkInteractionDuringSession)
It works in EntityFramework , why do I get this error in NHibernate and how to get it working the way I want it to ?
