Fluent nHibernate mapping with multiple columns - nhibernate

Question

I have following database and I want to create mapping in Fluent nhibernate so that I can traverse object collection like
survey.question.feedback to get all responses to questions .. how can I do that?
I have following mapping so far
public class SurveyMapping : ClassMap<Survey>
{
public SurveyMapping()
{
Id(x => x.Id, "SurveyId");
Map(x => x.Name);
Map(x => x.Type);
Map(x => x.CreationDate);
Map(x => x.ModificationDate);
HasManyToMany<SurveyQuestions>(x => x.Questions).Table("Survey-Questions")
.ParentKeyColumn("SurveyId").ChildKeyColumn("QuestionId").Cascade.All();
HasManyToMany<User>(x => x.Users).Table("User-Surveys").ParentKeyColumn("SurveyId").ChildKeyColumn("UserId").Cascade.None();
}
}
public class SurveyQuestionsMapping : ClassMap<SurveyQuestions>
{
public SurveyQuestionsMapping()
{
Table("Questions");
Id(x => x.Id, "QuestionId");
Map(x => x.QuestionText);
Map(x => x.CommentText);
Map(x => x.Type);
Map(x => x.Scale);
Map(x => x.Rating);
Map(x => x.Threshold);
Map(x => x.CreationDate);
Map(x => x.ModificationDate);
HasMany<UserSurveyFeedback>(x => x.Feedback)
.KeyColumn("QuestionId");
**// This is the confusing part How I can load feedback associated with specific user here**
}
}

Answer 1

You should have many-to-many relations from User to Survey, from User to Feedback, from Question to Survey and from Question to Feedback.
As for querying all feedback from a user, it is simple:
var feedbackFromUser = session.Query<Feedback>().Where(f => f.User.UserID == userID).ToList();