one to many relationship in entity framewrok 4.1 code first - asp.net-mvc-3

Question

I am initializing the entities like this:
TasksListDB db = new TasksListDB();
public ActionResult Index()
{
var tasks1 = new List<Task>()
{
new Task { Id=1, Name = "Task 1", Difficulty = 1, DateCreated = DateTime.Parse("1/12/2011") , IsDone= true },
new Task { Id=2, Name = "Task 2", Difficulty = 2, DateCreated = DateTime.Parse("11/2/2011") , IsDone = false}
};
var tasks2 = new List<Task>()
{
new Task { Id=3, Name = "Task 3", Difficulty = 3, DateCreated = DateTime.Parse("11/2/2011") , IsDone = false},
new Task { Id=4, Name = "Task 4", Difficulty = 5, DateCreated = DateTime.Parse("1/2/2010") , IsDone= true }
};
tasks1.ForEach(t => db.Tasks.Add(t));
tasks2.ForEach(t => db.Tasks.Add(t));
var Persons = new List<Person> {
new Person { Id= 1 , Age= 10, EmailAddress= "asif_hameed_37#hotmail.com", FirstName= "Asif", LastName="Hameed" },
new Person { Id= 2 , Age= 10, EmailAddress= "asif_hameed_37#hotmail.com", FirstName= "Asif", LastName="Hameed" },
new Person { Id= 3 , Age= 10, EmailAddress= "asif_hameed_37#hotmail.com", FirstName= "Asif", LastName="Hameed" },
new Person { Id= 4 , Age= 10, EmailAddress= "asif_hameed_37#hotmail.com", FirstName= "Asif", LastName="Hameed" }};
Persons.ForEach(p => db.Persons.Add(p));
return View(db.Tasks);
}
my db context looks like this:
public class TasksListDB : DbContext
{
public DbSet<Person> Persons { get; set; }
public DbSet<Task> Tasks { get; set; }
}
I want to assign tasks to persons how can I do this ?
My model looks like this :
public class Person
{
public int Id { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
public int Age { get; set; }
public string EmailAddress { get; set; }
public virtual ICollection<Task> Tasks { get; set; }
}
public class Task
{
public int Id { get; set; }
public string Name { get; set; }
[Required]
public DateTime DateCreated { get; set; }
[Required]
[Range(1,5,ErrorMessage="Difficulty must be between 1 and 5")]
public int Difficulty { get; set; }
public bool IsDone { get; set; }
public virtual Person Person { get; set; }
}
When I run my mvc application, Person and Task tables are created but juntion table PersonTask not created.
[EDIT]
I am assigning tasks like this in initializer class:
var t1 = new Task { Id = 1, Name = "Urgent Task", DateCreated = DateTime.Now, Difficulty = 2, IsDone = true };
var t2 = new Task { Id = 2, Name = "Business Task", DateCreated = DateTime.Now, Difficulty = 1, IsDone = true };
var t3 = new Task { Id = 3, Name = "Home Task", DateCreated = DateTime.Now, Difficulty = 2, IsDone = false };
context.Tasks.Add(t1);
context.Tasks.Add(t2);
context.Tasks.Add(t3);
var Persons = new List<Person> {
new Person { Id= 1 , Age= 40, EmailAddress= "asif_hameed_37#hotmail.com", FirstName= "Asif", LastName="Hameed", Tasks= new List<Task> { t1,t2 }},
new Person { Id= 2 , Age= 30, EmailAddress= "asif_hameed_37#hotmail.com", FirstName= "Asif", LastName="Hameed" , Tasks= new List<Task> { t1} },
new Person { Id= 3 , Age= 29, EmailAddress= "asif_hameed_37#hotmail.com", FirstName= "Asif", LastName="Hameed" , Tasks= new List<Task> { t3,t2 } },
new Person { Id= 4 , Age= 35, EmailAddress= "asif_hameed_37#hotmail.com", FirstName= "Asif", LastName="Hameed" , Tasks= new List<Task> { t1,t3 } }};
context.Persons.Add(Persons[0]);
context.Persons.Add(Persons[1]);
context.Persons.Add(Persons[2]);
context.Persons.Add(Persons[3]);
context.SaveChanges();
but when i see the task table in sql server, it looks like this:
Id Name DateCreated Difficulty IsDone Person_Id
1 Urgent Task 2011-04-24 19:32:03.990 2 1 4
2 Business Task 2011-04-24 19:32:03.990 1 1 3
3 Home Task 2011-04-24 19:32:03.990 2 0 4
I assume that person table should have tasks not the task table should have person Id
Please suggest solution.

Answer 1

Junction table will not be created because you have defined one-to-many relation not many-to-many. The Task entity in your model can be assigned only to single Person not to many persons.
If you want to assing Task to Person simply run:
person.Tasks.Add(task);