public void BagTest()
{
int studentId = 1;
// Set major.
using (ISession session = OpenSession())
{
ITransaction t = session.BeginTransaction();
var student = new Student();
var subject1 = new Subject {Id = 1};
var subject2 = new Subject {Id = 2};
// Create major objects.
var major1 = new Major {Note = ""};
var major2 = new Major {Note = ""};
// Set major objects.
student.Majors[subject1] = major1;
student.Majors[subject2] = major2;
session.Save(subject1);
session.Save(subject2);
session.Save(student);
session.Flush();
t.Commit();
}
// Remove major for subject 2.
using (ISession session = OpenSession())
{
ITransaction t = session.BeginTransaction();
var student = session.Get<Student>(studentId);
var subject2 = session.Get<Subject>(2);
// Remove major.
student.Majors.Remove(subject2);
session.Flush();
t.Commit();
}
// Get major for subject 2.
using (ISession session = OpenSession())
{
ITransaction t = session.BeginTransaction();
var student = session.Get<Student>(studentId);
var subject2 = session.Get<Subject>(2);
Assert.IsNotNull(subject2);
// Major for subject 2 should have been removed.
Assert.IsFalse(student.Majors.ContainsKey(subject2));
t.Commit();
}
// Remove all - NHibernate will now succeed in removing all.
using (ISession session = OpenSession())
{
ITransaction t = session.BeginTransaction();
var student = session.Get<Student>(studentId);
student.Majors.Clear();
session.Flush();
t.Commit();
}
}