/// <summary>
/// Update an existing Guest in the databse.
/// </summary>
/// <param name="p_guest">New Guest-Object.</param>
/// <returns>The updated Guest-Object. NULL, or Exception if an error occurs.</returns>
public Guest Update(Guest p_guest)
{
using (var context = new FhdwHotelContext())
{
using (var transaction = context.Database.BeginTransaction())
{
try
{
p_guest.ContactAddress = context.Address.SingleOrDefault(a => a.ID == p_guest.ContactAddress.ID);
p_guest.BillingAddress = context.Address.SingleOrDefault(a => a.ID == p_guest.BillingAddress.ID);
context.Guest.Add(p_guest);
context.SaveChanges();
transaction.Commit();
return p_guest;
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
transaction.Rollback();
return null;
}
}
}
}
/// <summary>
/// Request an Admin-Object from the Database, with the username.
/// </summary>
/// <param name="p_username">Username of the Administrator.</param>
/// <returns>The found Adminobject will be returned. If no Admin was found, NULL will be returned. </returns>
public Admin GetByUsername(string p_username)
{
using (var context = new FhdwHotelContext())
{
return context.Admin.SingleOrDefault(a => a.Username.ToLower() == p_username.ToLower());
}
}
/// <summary>
/// Get a List of all Hotels in the database.
/// </summary>
/// <returns>List with all Hotels. If no Hotel exists, return an empty List.</returns>
public ICollection<DomainModel.Hotel> GetCollection()
{
using (var context = new FhdwHotelContext())
{
return context.Hotel.Include(h => h.Address).ToList();
}
}
/// <summary>
/// Update an existing Booking entry.
/// </summary>
/// <param name="p_booking">Bookingobject with an ID.</param>
/// <returns>Updated Bookingobject.</returns>
public Booking Update(Booking p_booking)
{
using (var context = new FhdwHotelContext())
{
using (var transaction = context.Database.BeginTransaction())
{
try
{
p_booking.Hotel = context.Hotel.SingleOrDefault(h => h.ID == p_booking.Hotel.ID);
context.Booking.Add(p_booking);
context.SaveChanges();
transaction.Commit();
return p_booking;
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
transaction.Rollback();
return null;
}
}
}
}
/// <summary>
/// Get a specific Hotel.
/// </summary>
/// <param name="p_id">ID of the Hotel</param>
/// <returns>The requested Hotel. If no Hotel exists, return NULL.</returns>
public DomainModel.Hotel GetById(int p_id)
{
using (var context = new FhdwHotelContext())
{
return context.Hotel.Include(a => a.Address).FirstOrDefault(h => h.ID == p_id);
}
}
/// <summary>
/// Insert a new Room into the databse.
/// </summary>
/// <param name="p_room">The new Room.</param>
/// <returns>The Newly created Room-Object. NULL, or Exception if an error occurs.</returns>
public Room Insert(Room p_room)
{
using (var context = new FhdwHotelContext())
{
using (var transaction = context.Database.BeginTransaction())
{
try
{
var hotel = context.Hotel.SingleOrDefault(h => h.ID == p_room.Hotel.ID);
p_room.Hotel = hotel;
context.Room.Add(p_room);
context.SaveChanges();
transaction.Commit();
return p_room;
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
transaction.Rollback();
return null;
}
}
}
}
/// <summary>
/// Get a Collection of all Rooms from one Hotel
/// </summary>
/// <param name="p_hotel">Hotelobject with an ID set</param>
/// <returns>Collection of Rooms.</returns>
public ICollection<Room> GetCollectionByHotel(DomainModel.Hotel p_hotel)
{
using (var context = new FhdwHotelContext())
{
return context.Room.Where(r => r.Hotel.ID == p_hotel.ID).ToList();
}
}
/// <summary>
/// Get a specific Room by ID.
/// </summary>
/// <param name="p_id">ID of the Room.</param>
/// <returns>The requested Hotel. If no Hotel exists, return NULL.</returns>
public Room GetById(int p_id)
{
using (var context = new FhdwHotelContext())
{
return context.Room.FirstOrDefault(r => r.ID == p_id);
}
}
/// <summary>
/// Get a specific Guest by their Emailaddress.
/// </summary>
/// <param name="p_email">Emailaddress of the Guest.</param>
/// <returns>The requested Guest. If no Guest exists, return NULL.</returns>
public Guest GetByEmail(string p_email)
{
using (var context = new FhdwHotelContext())
{
return context.Guest
.Include(g => g.ContactAddress)
.Include(g=> g.BillingAddress)
.SingleOrDefault(g => g.Emailaddress.ToLower() == p_email.ToLower());
}
}
/// <summary>
/// Get a List of all Rooms, wich are not already booked in a specific timeframe.
/// </summary>
/// <param name="p_hotelId"></param>
/// <param name="p_arrival">The Arrivaldate of the Guest.</param>
/// <param name="p_departure">The Departuredate of the Guest.</param>
/// <returns>List with all Rooms. If no Room exists, return an empty List.</returns>
public ICollection<Room> GetAvailableRooms(int p_hotelId, DateTime p_arrival, DateTime p_departure)
{
using (var context = new FhdwHotelContext())
{
return context.Room.Include(b => b.Bookings)
.Where(r => r.Hotel.ID == p_hotelId)
.Where(r => !r.Bookings.Any())
.Where(r => r.Bookings.FirstOrDefault(bo => bo.Arrival > p_arrival) != null)
.Where(r => r.Bookings.FirstOrDefault(bo => bo.Departure < p_departure) != null)
.ToList();
}
}
/// <summary>
/// Insert a wide variety on testdata into the database.
/// </summary>
public void CreateDatabase()
{
using (var context = new FhdwHotelContext())
{
using (var transaction = context.Database.BeginTransaction())
{
try
{
transaction.Commit();
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
transaction.Rollback();
}
}
context.Database.CreateIfNotExists();
}
}
/// <summary>
/// Insert a new booking into the database.
/// </summary>
/// <param name="p_booking">Bookingobject without an ID.</param>
/// <returns>Filled Bookingobject.</returns>
public Booking Insert(Booking p_booking)
{
using (var context = new FhdwHotelContext())
{
using (var transaction = context.Database.BeginTransaction())
{
try
{
p_booking.Hotel = context.Hotel.SingleOrDefault(h => h.ID == p_booking.Hotel.ID);
if (p_booking.Guest != null && p_booking.Guest.ID > 0)
{
p_booking.Guest = context.Guest.SingleOrDefault(g => g.ID == p_booking.Guest.ID);
if (p_booking.Guest.ContactAddress.ID > 0) p_booking.Guest.ContactAddress = context.Address.SingleOrDefault(a => a.ID == p_booking.Guest.ContactAddress.ID);
if (p_booking.Guest.BillingAddress.ID > 0) p_booking.Guest.BillingAddress = context.Address.SingleOrDefault(a => a.ID == p_booking.Guest.BillingAddress.ID);
}
var rooms = p_booking.Rooms;
p_booking.Rooms = new List<Room>();
foreach (var room in rooms)
{
p_booking.Rooms.Add(context.Room.FirstOrDefault(r => r.ID == room.ID));
}
context.Booking.Add(p_booking);
context.SaveChanges();
transaction.Commit();
return p_booking;
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
transaction.Rollback();
return null;
}
}
}
}
/// <summary>
/// Add Testdata to the Database.
/// </summary>
/// <param name="p_addresses">A Collection with Addressobjects.</param>
/// <param name="p_admins">A Collection with Adminobjects</param>
/// <param name="p_bookings">A Collection with Bookingobjects</param>
/// <param name="p_guests">A Collection with Guestobjects</param>
/// <param name="p_hotels">A Collection with Hotelobjects</param>
/// <param name="p_rooms">A Collection with Roomobjects</param>
/// <param name="p_roomTypes">A Collection of RoomTypes</param>
/// <param name="p_roomCategories">A Collection of Roomcategories.</param>
public void InsertTestData(ICollection<Address> p_addresses, ICollection<Admin> p_admins, ICollection<Booking> p_bookings, ICollection<Guest> p_guests, ICollection<DomainModel.Hotel> p_hotels, ICollection<Room> p_rooms, ICollection<RoomType> p_roomTypes, ICollection<RoomCategory> p_roomCategories)
{
using (var context = new FhdwHotelContext())
{
using (var transaction = context.Database.BeginTransaction())
{
try
{
if (p_roomTypes != null && !context.RoomType.Any())
{
context.RoomType.AddRange(p_roomTypes);
context.SaveChanges();
}
if (p_roomCategories != null && !context.RoomCategory.Any())
{
context.RoomCategory.AddRange(p_roomCategories);
context.SaveChanges();
}
if (p_admins != null && !context.Admin.Any())
{
context.Admin.AddRange(p_admins);
context.SaveChanges();
}
if (p_addresses != null && !context.Address.Any())
{
context.Address.AddRange(p_addresses);
context.SaveChanges();
}
if (p_hotels != null && !context.Hotel.Any())
{
foreach (var hotel in p_hotels)
{
hotel.Address = context.Address.SingleOrDefault(a => a.ID == hotel.Address.ID);
context.Hotel.Add(hotel);
}
context.SaveChanges();
}
if (p_rooms != null && !context.Room.Any())
{
foreach (var room in p_rooms)
{
room.Hotel = context.Hotel.SingleOrDefault(h => h.ID == room.Hotel.ID);
context.Room.Add(room);
}
context.SaveChanges();
}
if (p_guests != null && !context.Guest.Any())
{
foreach (var guest in p_guests)
{
if (guest.ContactAddress != null) guest.ContactAddress = context.Address.SingleOrDefault(a => a.ID == guest.ContactAddress.ID);
if (guest.BillingAddress != null) guest.BillingAddress = context.Address.SingleOrDefault(a => a.ID == guest.BillingAddress.ID);
context.Guest.Add(guest);
}
context.SaveChanges();
}
if (p_bookings != null && !context.Booking.Any()) context.Booking.AddRange(p_bookings);
transaction.Commit();
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
transaction.Rollback();
}
}
}
}
/// <summary>
/// Delete a room from the database.
/// </summary>
/// <param name="p_room">Roomobject with the ID set.</param>
/// <returns>The deleted Room-Object. NULL, or Exception if an error occurs.</returns>
public Room Delete(Room p_room)
{
using (var context = new FhdwHotelContext())
{
using (var transaction = context.Database.BeginTransaction())
{
try
{
var roomToDelete = context.Room.SingleOrDefault(r => r.ID == p_room.ID);
context.Room.Remove(roomToDelete);
context.SaveChanges();
transaction.Commit();
return roomToDelete;
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
transaction.Rollback();
return null;
}
}
}
}
