/// <summary>
/// Retrieve from session.
/// </summary>
/// <returns></returns>
public PrintingCalculator RetrieveFromSession()
{
//Read the session cookie
PrintingCalculator item;
if(!string.IsNullOrEmpty(UserID))
{
item = m_RavenSession.Load<PrintingCalculator>(UserID);
if(item == null || item.ID < 0)
{
//initialize a link list with max 20 operations
item = new PrintingCalculator();
CreateSessions(item);
}
}
else
{
//initialize a link list with max 20 operations
item = new PrintingCalculator();
CreateSessions(item);
}
item.SessionTimeOut = m_RavenSession.Advanced.GetMetadataFor(item)["Raven-Expiration-Date"].ToString();
return item;
}
/// <summary>
/// Creates the sessions.
/// </summary>
/// <param name="item">The item.</param>
private void CreateSessions(PrintingCalculator item)
{
DateTime SessionExpiration = DateTime.UtcNow.AddMinutes(SessionTimeOutValue);
m_RavenSession.Store(item);
m_RavenSession.Advanced.GetMetadataFor(item)["Raven-Expiration-Date"] = new RavenJValue(SessionExpiration);
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);
}