Delete on Many to Many Relationship using Fluent Nhibernate - nhibernate

Question

User Class
public class User
{
public virtual Guid UserID { get; set; }
public virtual string UserName { get; set; }
public virtual string Password { get; set; }
public virtual string FullName { get; set; }
public virtual string Email { get; set; }
public virtual TimeSpan LastLogin { get; set; }
public virtual bool IsActive { get; set; }
public virtual DateTime CreationDate { get; set; }
public virtual IList<Role> Roles { get; set; }
public User()
{
Roles = new List<Role>();
}
public virtual void AddRoles(Role role)
{
role.Users.Add(this);
Roles.Add(role);
}
}
Role Class
public class Role
{
public virtual int? RoleID { get; set; }
public virtual string RoleName { get; set; }
public virtual bool IsActive { get; set; }
public virtual string Description { get; set; }
public virtual IList<User> Users { get; set; }
public virtual IList<Role> Roles { get; set; }
public Role()
{
Users = new List<User>();
}
}
UserMap Class
public class UserMap : ClassMap<User>
{
public UserMap()
{
Table("tblUsers");
Id(user => user.UserID).GeneratedBy.Guid();
Map(user => user.UserName).Not.Nullable();
Map(user => user.Password).Not.Nullable();
Map(user => user.FullName).Not.Nullable();
Map(user => user.Email).Not.Nullable();
//Map(user => user.LastLogin).Nullable();
Map(user => user.IsActive).Not.Nullable();
Map(user => user.CreationDate).Not.Nullable();
HasManyToMany<Role>(x => x.Roles).Table("tblUserInRoles")
.ParentKeyColumn("UserID")
.ChildKeyColumn("RoleID")
.Cascade.All()
//.AsSet()
//.Inverse()
.Not.LazyLoad();
}
}
RoleMap Class
public class RoleMap : ClassMap<Role>
{
public RoleMap()
{
Table("tblRoles");
Id(role => role.RoleID).GeneratedBy.Identity();
Map(role => role.RoleName).Not.Nullable();
Map(role => role.IsActive).Not.Nullable();
Map(role => role.Description).Not.Nullable();
HasManyToMany<User>(x => x.Users)
.Table("tblUserInRoles")
.ParentKeyColumn("RoleID")
.ChildKeyColumn("UserID")
.Cascade.All()
.Inverse()
.Not.LazyLoad();
}
}
My questions are:
I want to delete all roles of particular user? [Answered by danyolgiax]
Get roles of user
Can Any one guide me..

Answer 1

try .Inverse() on User (not on Role) and then:
user.Roles.Clear();
yourNhSession.SaveOrUpdate(user);
update
User user= yourNhSession.Get<User>(userId);
IList<Role> role= user.Roles;