/// <summary>
        /// studnet invitations for event created
        /// </summary>
        /// <param name="students"></param>
        /// <param name="eventId"></param>
        /// <returns></returns>
        public bool AddStudentInvitesToEvent(List<Student> students, int eventId)
        {
            if (eventId != 0)
            {   //current invites selceted
                var allInvites = _dBase.StudentInvites.Where(x => x.EventId == eventId).ToList();
                //current invites removed
                if (allInvites.Count > 0)
                {
                    foreach (var i in allInvites)
                    {
                        var recycledId = new RecycledId
                        {
                            IdRecovered = i.StudentInviteId,
                            DateAdded = DateTime.Now.AddSeconds(1),
                            TableName = "Student Invite"
                        };
                        _dBase.StudentInvites.Remove(i);
                        _dBase.RecycledIds.Add(recycledId);
                        _dBase.SaveChanges();

                    }
                }
                //new invited created
                foreach (var s in students)
                {
                    //new invite id generated
                    var studentInviteId = StudentInvitesIdGeneration();
                    //new student invite object created
                    var studentInvite = new StudentInvite
                    {
                        EventId = eventId,
                        StudentId = s.StudentId,
                        StudentInviteId = studentInviteId,
                        Attending = false
                    };
                    //Invite added to databse
                    _dBase.StudentInvites.Add(studentInvite);
                    _dBase.SaveChanges();
                 }

                return true;
            }
            return false;
        }
 /// <summary>
 /// Invitation of student to events that have been assigned on a 
 /// room and not a module, as evemt with modules invitations handled 
 /// by module event records
 /// </summary>
 /// <param name="eventId"></param>
 /// <param name="studentId"></param>
 /// <returns></returns>
 public bool StudentInvite(int eventId, int studentId)
 {
     if (eventId != 0 && studentId != 0)
     {   //Id generated
         var inviteId = StudentInvitesIdGeneration();
         var studentEvent = new StudentInvite
         {
             StudentInviteId = inviteId,
             StudentId = studentId,
             EventId = eventId,
             Attending = true
         };
         //student Invite added
         _dBase.StudentInvites.Add(studentEvent);
         _dBase.SaveChanges();
         return true;
     }
     return false;
 }