/// <summary>
/// Creates the new math practice.
/// </summary>
/// <returns></returns>
public MathPractice CreateNewSession()
{
MathPractice item = new MathPractice();
item.CreateQuestions();
CreateSessions(item);
return item;
}
/// <summary>
/// Retrieves from session.
/// </summary>
/// <returns></returns>
public MathPractice RetrieveFromSession()
{
//Read the session cookie
MathPractice item;
if(!string.IsNullOrEmpty(UserID))
{
item = m_RavenSession.Load<MathPractice>(UserID);
if(item == null || item.ID < 0)
{
item = new MathPractice();
item.CreateQuestions();
CreateSessions(item);
}
}
else
{
//initialize a link list with max 20 operations
item = new MathPractice();
item.CreateQuestions();
CreateSessions(item);
}
return item;
}
/// <summary>
/// Creates the sessions.
/// </summary>
/// <param name="item">The item.</param>
private void CreateSessions(MathPractice item)
{
DateTime SessionExpiration = DateTime.UtcNow.AddMonths(SessionTimeOutValue);
m_RavenSession.Store(item);
m_RavenSession.SaveChanges();
//Save user ID cookie
HttpCookie authCookie = new HttpCookie(SessionKey, m_RavenSession.Advanced.GetDocumentId(item))
{
Expires = SessionExpiration
};
HttpContext.Current.Response.Cookies.Add(authCookie);
}