/// <summary>
/// Written: 18/11/2012
/// Deletes event by querying the events table using the event Id
/// </summary>
/// <param name="eventId"></param>
/// <returns></returns>
public bool DeleteEvent(int eventId)
{
var deletedEvent = db.Events.SingleOrDefault(x =>x.EventId == eventId);
var newSavedId = new RecycledId()
{
TableName = "Event",
IdRecovered = eventId
};
db.RecycledIds.Add(newSavedId);
db.Events.Remove(deletedEvent);
db.SaveChanges();
return true;
}
/// <summary>
/// Invitations of staff to a room only event created
/// </summary>
/// <param name="staff"></param>
/// <param name="eventId"></param>
/// <returns></returns>
public bool AddStaffInvitesToEvent(List<Staff> staff, int eventId)
{
if (eventId != 0)
{
//selection of all current invites for the event created
var allInvites = _dBase.StaffInvites.Where(x => x.EventId == eventId).ToList();
if (allInvites.Count > 0)
{
foreach (var i in allInvites)
{ //old invitations removed
var recycledId = new RecycledId
{
IdRecovered = i.StaffInviteId,
DateAdded = DateTime.Now.AddSeconds(1),
TableName = "Staff Invite"
};
_dBase.StaffInvites.Remove(i);
_dBase.RecycledIds.Add(recycledId);
_dBase.SaveChanges();
}
}
//new invitations creatde and adde to the database
foreach (var s in staff)
{ //staff invite id generation
var staffInviteId = StaffInvitesIdGeneration();
//new staff invite created
var staffInvite = new StaffInvite
{
EventId = eventId,
StaffId = s.StaffId,
StaffInviteId = staffInviteId,
Attending = false
};
_dBase.StaffInvites.Add(staffInvite);
_dBase.SaveChanges();
}
return true;
}
return false;
}
/// <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>
/// Edited event detials passed in from teh client and event selected
/// from databse and changes applied
/// </summary>
/// <param name="editedEventId"></param>
/// <param name="userId"></param>
/// <param name="eventTitle"></param>
/// <param name="eventDescription"></param>
/// <param name="eventType"></param>
/// <param name="eventDuration"></param>
/// <param name="startDate"></param>
/// <param name="eventTime"></param>
/// <param name="roomName"></param>
/// <param name="courseName"></param>
/// <param name="moduleName"></param>
/// <returns></returns>
public bool EditEvent(int editedEventId, int userId, string eventTitle, string eventDescription,
string eventType, int eventDuration, DateTime startDate, string eventTime,
string roomName, string courseName, string moduleName)
{
//edited event seleted from databse
var editedEvent = _dBase.Events.SingleOrDefault(x => x.EventId == editedEventId);
//as long as edited event exists changes will be made otherwise changes saved failed
if (editedEvent == null)
{
return false;
}
#region Removal of Previous Invites and Attendees
//staff attendees selected to be deleted
var staffAtendees = _dBase.StaffEvents.Where(x => x.EventId == editedEventId).ToList();
if (staffAtendees.Any())
{
//each staff attendee reomved and Ids recycled
foreach (var sa in staffAtendees)
{//recycled id created
var recycledId = new RecycledId
{
DateAdded = DateTime.Now,
IdRecovered = sa.StaffEventId,
TableName = "Staff Event"
};
_dBase.StaffEvents.Remove(sa);
_dBase.RecycledIds.Add(recycledId);
_dBase.SaveChanges();
}
}
//module attendees selected for deletion
var moduleAttendees = _dBase.ModuleEvents.Where(x => x.EventId == editedEventId).ToList();
if (moduleAttendees.Any())
{
//each module deleted individually
foreach (var m in moduleAttendees)
{//id of module event is recycled
var recycledId = new RecycledId
{
DateAdded = DateTime.Now,
IdRecovered = m.EventModule,
TableName = "Module Event"
};
_dBase.ModuleEvents.Remove(m);
_dBase.RecycledIds.Add(recycledId);
_dBase.SaveChanges();
}
}
//staff invitations returned for deletion
var staffInvites = _dBase.StaffInvites.Where(x => x.EventId == editedEventId).ToList();
if (staffInvites.Any())
{ //staff Ids deleted individuallys
foreach (var si in staffInvites)
{//ids of each staff invited are returned and recycled
var recycledId = new RecycledId
{
DateAdded = DateTime.Now,
IdRecovered = si.StaffInviteId,
TableName = "Staff Invite"
};
_dBase.StaffInvites.Remove(si);
_dBase.RecycledIds.Add(recycledId);
_dBase.SaveChanges();
}
}
//student invites retunred for deletion
var studentInvites = _dBase.StudentInvites.Where(x => x.EventId == editedEventId).ToList();
if (studentInvites.Any())
{ //each invite is deleted individually
foreach (var st in studentInvites)
{// ids are recycled
var recycledId = new RecycledId
{
DateAdded = DateTime.Now,
IdRecovered = st.StudentInviteId,
TableName = "Student Invite"
};
_dBase.StudentInvites.Remove(st);
_dBase.RecycledIds.Add(recycledId);
_dBase.SaveChanges();
}
}
#endregion
//repeat Id set to first value as default as repeats not implemented
var repeatId = _dBase.RepeatTypes.First().RepeatTypeId;
var roomId = 0;
//room selceted and saved to event
var room = _dBase.Rooms.SingleOrDefault(x => x.RoomName == roomName);
if (roomName != "0" && room != null)
{
roomId = room.RoomId;
}
var timeId = 0;
//time of event changed according to the information passed in from client
var time = _dBase.Times.SingleOrDefault(x => x.TimeLiteral == eventTime);
if (eventTime != "0" && time != null)
{
timeId = time.TimeId;
}
var courseId = 0;
//course informatino changes accoding to the clinets information passed in
var course = _dBase.Courses.SingleOrDefault(x => x.CourseName == courseName);
if (courseName != "0" && course != null)
{
courseId = course.CourseId;
}
var moduleId = 0;
//module Id passed in from the client added ot the event
var module = _dBase.Modules.SingleOrDefault(x => x.ModuleName == moduleName);
if (moduleName != "0" && module != null)
{
moduleId = module.ModuleId;
//new moduke event created
ModuleEvent(editedEventId, moduleId, courseId);
}
var typeId = 0;
//event type set according to type id
var type = _dBase.EventTypes.SingleOrDefault(x => x.TypeName == eventType);
if (eventType != "0" && type != null)
{
typeId = type.TypeId;
}
//details of event passed in from client added to event
editedEvent.EventTitle = eventTitle;
editedEvent.EventType = typeId;
editedEvent.LastUserEdited = userId;
editedEvent.EventDescription = eventDescription;
editedEvent.Repeats = repeatId;
editedEvent.Duration = eventDuration;
editedEvent.CreateDate = DateTime.Now;
editedEvent.Status = "New";
editedEvent.StartDate = startDate;
editedEvent.LastDateEdited = DateTime.Now;
editedEvent.Time = timeId;
editedEvent.Room = roomId;
editedEvent.Module = moduleId;
editedEvent.Course = courseId;
//change of event saved
_dBase.SaveChanges();
//edit changes successfull
return true;
}
/// <summary>
/// Staff added to events in general, no staff has to be adde to an event
/// to be confirmed
/// </summary>
/// <param name="eventId"></param>
/// <param name="staffId"></param>
/// <returns></returns>
public bool StaffEvent(int eventId, int staffId)
{
//as long as valid ids passed in attendee added
if (eventId != 0 && staffId != 0)
{
//current staff allocation removed
var idRecovery = _dBase.StaffEvents.SingleOrDefault(x => x.EventId == eventId);
//Ids of current staff allocation recycled
if (idRecovery != null)
{
//recycled Id maintained
var recoveredId = new RecycledId
{
IdRecovered = idRecovery.StaffEventId,
TableName = "Staff Event",
DateAdded = DateTime.Now
};
_dBase.RecycledIds.Add(recoveredId);
_dBase.StaffEvents.Remove(idRecovery);
_dBase.SaveChanges();
}
//new staff attendee created
var inviteId = StaffEventsIdGeneration();
var staffEvent = new StaffEvent
{
StaffEventId = inviteId,
StaffId = staffId,
EventId = eventId
};
_dBase.StaffEvents.Add(staffEvent);
_dBase.SaveChanges();
return true;
}
return false;
}
/// <summary>
/// student delete function
/// </summary>
/// <param name="studentId"></param>
/// <returns></returns>
public bool DeleteStudent(int studentId)
{
if (studentId != 0)
{//studnet Id recovered
var recoveredId = new RecycledId
{
DateAdded = DateTime.Now,
IdRecovered = studentId,
TableName = "Student"
};
//fields associated with students selected for removal or updating
var student = _dBase.Students.SingleOrDefault(x => x.StudentId == studentId);
var studentModules = _dBase.StudentModules.Where(x => x.StudentId == studentId).ToList();
var studentEvents = _dBase.StudentEvents.Where(x => x.StudentId == studentId).ToList();
var studentInvites = _dBase.StudentInvites.Where(x => x.StudentId == studentId).ToList();
if (student != null)
{//studnet removed
_dBase.Students.Remove(student);
_dBase.RecycledIds.Add(recoveredId);
}
//Student modules removed and id recycled
if (studentModules.Count() != 0)
{
foreach (var m in studentModules)
{
_dBase.StudentModules.Remove(m);
var recoveredRoomId = new RecycledId
{
DateAdded = DateTime.Now,
IdRecovered = m.StudentModuleId,
TableName = "Student Module"
};
_dBase.RecycledIds.Add(recoveredRoomId);
}
}
//studnet Events updated
if (studentEvents.Count() != 0)
{
foreach (var m in studentEvents)
{
_dBase.StudentEvents.Remove(m);
var recoveredRoomId = new RecycledId
{
DateAdded = DateTime.Now,
IdRecovered = m.StudentEventId,
TableName = "Student Event"
};
_dBase.RecycledIds.Add(recoveredRoomId);
}
}
//studnet Invites updated
if (studentInvites.Count() != 0)
{
foreach (var m in studentInvites)
{
_dBase.StudentInvites.Remove(m);
var recoveredRoomId = new RecycledId
{
DateAdded = DateTime.Now,
IdRecovered = m.StudentInviteId,
TableName = "Student Invite"
};
_dBase.RecycledIds.Add(recoveredRoomId);
}
}
_dBase.SaveChanges();
return true;
}
return false;
}
/// <summary>
/// Deletion of a student invite
/// </summary>
/// <param name="inviteId"></param>
/// <returns></returns>
public bool DeleteStudentInvite(int inviteId)
{
//selected invite selected from database
var inviteSelected = _dBase.StudentEvents.SingleOrDefault(x => x.StudentEventId == inviteId);
// as longa as invite exists it is removed
if (inviteSelected != null)
{
//record removed from database
_dBase.StudentEvents.Remove(inviteSelected);
//Id recycled
var savedId = new RecycledId
{
IdRecovered = inviteId,
TableName = "Student Event",
DateAdded = DateTime.Now
};
//Id saved
_dBase.RecycledIds.Add(savedId);
_dBase.SaveChanges();
return true;
}
return false;
}
/// <summary>
/// Deletion of rooom according to id passed in for cleint
/// </summary>
/// <param name="roomId"></param>
/// <returns></returns>
public bool DeleteRoom(int roomId)
{
if (roomId != 0)
{
//Id recycled
var recoveredId = new RecycledId
{
DateAdded = DateTime.Now,
IdRecovered = roomId,
TableName = "Room"
};
var room = _dBase.Rooms.SingleOrDefault(x => x.RoomId == roomId);
var roomsEvents = _dBase.Events.Where(x => x.Room == roomId).ToList();
//All rooms that have the id passed in removed
if (room != null)
{
_dBase.Rooms.Remove(room);
_dBase.RecycledIds.Add(recoveredId);
}
//all events that use this room are modified for both room and status
if (roomsEvents.Count() != 0)
{
foreach (var e in roomsEvents)
{
e.Room = 0;
e.Status = "Denied";
}
}
//database changes saved
_dBase.SaveChanges();
return true;
}
return false;
}
/// <summary>
/// Deletion of selected staff member
/// </summary>
/// <param name="staffId"></param>
/// <returns></returns>
public bool DeleteStaff(int staffId)
{
if(staffId != 0)
{
//Staff id recovered
var recoveredId = new RecycledId
{
DateAdded = DateTime.Now,
IdRecovered = staffId,
TableName = "Staff"
};
//associated staff firelds collected for deletion or updating
var staff = _dBase.Staffs.SingleOrDefault(x => x.StaffId == staffId);
var staffModules = _dBase.Modules.Where(x => x.Staff == staffId);
var staffEvents = _dBase.StaffEvents.Where(x => x.StaffId == staffId).ToList();
var staffInvites = _dBase.StaffInvites.Where(x => x.StaffId == staffId).ToList();
if (staff != null)
{
//staff removed and id recovered
_dBase.Staffs.Remove(staff);
_dBase.RecycledIds.Add(recoveredId);
}
//staf modules updataed
if (staffModules.Count() != 0)
{
foreach (var m in staffModules)
{
m.Staff = 0;
}
}
//staff events updated to relect staff removal
if (staffEvents.Count() != 0)
{
foreach (var m in staffEvents)
{
_dBase.StaffEvents.Remove(m);
//Id recycled
var recoveredRoomId = new RecycledId
{
DateAdded = DateTime.Now,
IdRecovered = m.StaffId,
TableName = "Staff Event"
};
_dBase.RecycledIds.Add(recoveredRoomId);
}
}
//staff invitatino for events removeed
if (staffInvites.Count() != 0)
{
foreach (var m in staffInvites)
{
_dBase.StaffInvites.Remove(m);
var recoveredRoomId = new RecycledId
{
DateAdded = DateTime.Now,
IdRecovered = m.StaffId,
TableName = "Staff Invite"
};
//Id reccycled
_dBase.RecycledIds.Add(recoveredRoomId);
}
}
_dBase.SaveChanges();
return true;
}
return false;
}
/// <summary>
/// Deletion of module Event allocation
/// Used to help allocated students to events
/// </summary>
/// <param name="inviteId"></param>
/// <returns></returns>
public bool DeleteModuleEvent(int inviteId)
{
//selected module event from database
var inviteSelected = _dBase.ModuleEvents.SingleOrDefault(x => x.EventModule == inviteId);
if (inviteSelected != null)
{
//module event removed
_dBase.ModuleEvents.Remove(inviteSelected);
//recycled Id
var savedId = new RecycledId
{
IdRecovered = inviteId,
TableName = "Module Event",
DateAdded = DateTime.Now
};
_dBase.RecycledIds.Add(savedId);
_dBase.SaveChanges();
return true;
}
return false;
}
/// <summary>
/// deletion of module
/// </summary>
/// <param name="moduleId"></param>
/// <returns></returns>
public bool DeleteModule(int moduleId)
{
if (moduleId != 0)
{
//moudle Id recovered
var recoveredId = new RecycledId
{
DateAdded = DateTime.Now,
IdRecovered = moduleId,
TableName = "Module"
};
//module and module events selected
var module = _dBase.Modules.SingleOrDefault(x => x.ModuleId == moduleId);
var moduleEvents = _dBase.Events.Where(x => x.Module == moduleId).ToList();
if (module != null)
{
//modue removed
_dBase.Modules.Remove(module);
_dBase.RecycledIds.Add(recoveredId);
}
if (moduleEvents.Count() != 0)
{//module events updated to relect removal of module
foreach (var e in moduleEvents)
{
e.Module = 0;
e.Status = "Denied";
}
}
_dBase.SaveChanges();
return true;
}
return false;
}
/// <summary>
/// Deletes event by querying the events table using the event Id
/// </summary>
/// <param name="eventId"></param>
/// <returns></returns>
public bool DeleteEvent(int eventId)
{
//delete event selected from database
var deletedEvent = _dBase.Events.SingleOrDefault(x => x.EventId == eventId);
//as long as event exists
if (deletedEvent != null)
{
#region Removal of Previous Invites and Attendees
var staffAtendees = _dBase.StaffEvents.Where(x => x.EventId == eventId).ToList();
if (staffAtendees.Count > 0)
{
foreach (var sa in staffAtendees)
{
var recycledId = new RecycledId
{
DateAdded = DateTime.Now,
IdRecovered = sa.StaffEventId,
TableName = "Staff Event"
};
_dBase.StaffEvents.Remove(sa);
_dBase.RecycledIds.Add(recycledId);
_dBase.SaveChanges();
}
}
var moduleAttendees = _dBase.ModuleEvents.Where(x => x.EventId == eventId).ToList();
if (moduleAttendees.Count > 0)
{
foreach (var m in moduleAttendees)
{
var recycledId = new RecycledId
{
DateAdded = DateTime.Now,
IdRecovered = m.EventModule,
TableName = "Module Event"
};
_dBase.ModuleEvents.Remove(m);
_dBase.RecycledIds.Add(recycledId);
_dBase.SaveChanges();
}
}
var staffInvites = _dBase.StaffInvites.Where(x => x.EventId == eventId).ToList();
if (staffInvites.Count > 0)
{
foreach (var si in staffInvites)
{
var recycledId = new RecycledId
{
DateAdded = DateTime.Now,
IdRecovered = si.StaffInviteId,
TableName = "Staff Invite"
};
_dBase.StaffInvites.Remove(si);
_dBase.RecycledIds.Add(recycledId);
_dBase.SaveChanges();
}
}
var studentInvites = _dBase.StudentInvites.Where(x => x.EventId == eventId).ToList();
if (studentInvites.Count > 0)
{
foreach (var st in studentInvites)
{
var recycledId = new RecycledId
{
DateAdded = DateTime.Now,
IdRecovered = st.StudentInviteId,
TableName = "Student Invite"
};
_dBase.StudentInvites.Remove(st);
_dBase.RecycledIds.Add(recycledId);
_dBase.SaveChanges();
}
}
#endregion
//event id recycled
var newSavedId = new RecycledId
{
TableName = "Event",
IdRecovered = eventId,
DateAdded = DateTime.Now
};
//Id recycled
_dBase.RecycledIds.Add(newSavedId);
//event deleted
_dBase.Events.Remove(deletedEvent);
_dBase.SaveChanges();
return true;
}
//delete failed
return false;
}
/// <summary>
/// Deletion of course seleted by Id
/// </summary>
/// <param name="courseId"></param>
/// <returns></returns>
public bool DeleteCourse(int courseId)
{
if (courseId != 0)
{
var recoveredId = new RecycledId
{
DateAdded = DateTime.Now,
IdRecovered = courseId,
TableName = "Course"
};
//course and course modules allocations slected
var course = _dBase.Courses.SingleOrDefault(x => x.CourseId == courseId);
var courseModules = _dBase.CourseModules.Where(x => x.Course == courseId).ToList();
if (course != null)
{//removal of course
_dBase.Courses.Remove(course);
_dBase.RecycledIds.Add(recoveredId);
}
if (courseModules.Count() != 0)
{
//removal of course moudule associations
foreach (var m in courseModules)
{
_dBase.CourseModules.Remove(m);
//course module id recycled
var recoveredRoomId = new RecycledId
{
DateAdded = DateTime.Now,
IdRecovered = m.Module,
TableName = "Module"
};
_dBase.RecycledIds.Add(recoveredRoomId);
//module events updated to reflect removal of modules
var moduleEvents = _dBase.Events.Where(x => x.Module == m.Module).ToList();
foreach (var e in moduleEvents)
{
e.Module = 0;
e.Status = "Denied";
}
}
}
_dBase.SaveChanges();
return true;
}
return false;
}
/// <summary>
/// Building deleted according to the Id passed in
/// Also cleanu of rooms associations and events managaed
/// </summary>
/// <param name="buildingId"></param>
/// <returns></returns>
public bool DeleteBuilding(int buildingId)
{
if (buildingId != 0)
{//building id recycled
var recoveredId = new RecycledId
{
DateAdded = DateTime.Now,
IdRecovered = buildingId,
TableName = "Building"
};
//Building and room objects selected
var building = _dBase.Buildings.SingleOrDefault(x => x.BuildingId == buildingId);
var buildingRooms = _dBase.Rooms.Where(x => x.Building == buildingId).ToList();
if (building != null)
{//building removed and id recycled
_dBase.Buildings.Remove(building);
_dBase.RecycledIds.Add(recoveredId);
}
//Rooms that were reviously associcated with building are updated
if (buildingRooms.Count() != 0)
{
//Rooms taht are associated with building removed
foreach (var r in buildingRooms)
{
_dBase.Rooms.Remove(r);
//room ids recycled
var recoveredRoomId = new RecycledId
{
DateAdded = DateTime.Now,
IdRecovered = r.RoomId,
TableName = "Room"
};
_dBase.RecycledIds.Add(recoveredRoomId);
//evenst of associated rooms updated
var roomEvents = _dBase.Events.Where(x => x.Room == r.RoomId).ToList();
foreach (var e in roomEvents)
{
e.Room = 0;
e.Status = "Denied";
}
}
}
//changes saved
_dBase.SaveChanges();
return true;
}
return false;
}
