C# Entities.LomsContext類代碼示例

        public IEnumerable<CitySupplierInfo> GetCitySuppliers(int cityId)
        {
            using (var db = new LomsContext())
            {
                var suppliers = from a in db.DispatchSuppliers.IncludeAll("Country", "State", "State.Country", "Suburb", "Suburb.Country", "Suburb.State", "Suburb.State.Country")
                                join ac in db.DispatchSupplierCities on a.Id equals ac.SupplierId
                                where ac.CityId == cityId
                                orderby a.Name
                                select a;

                var citySupplierInfos = new List<CitySupplierInfo>();

                foreach (var supplier in suppliers.ToList())
                {
                    if (supplier.CountryId != null && supplier.Country == null)
                        supplier.Country = db.Countries.SingleOrDefault(c => c.Id == supplier.CountryId);
                    else if (supplier.StateId != null && supplier.State == null)
                        supplier.State = db.States.Include("Country").SingleOrDefault(s => s.Id == supplier.StateId);
                    else if (supplier.SuburbId != null && supplier.Suburb == null)
                        supplier.Suburb = db.Suburbs.IncludeAll("State", "State.Country", "Country").SingleOrDefault(s => s.Id == supplier.SuburbId);


                    var info = new CitySupplierInfo() { Supplier = supplier };

                    info.Manager = db.DispatchSupplierUsers.FirstOrDefault(u => u.SupplierId == supplier.Id && u.RoleId == (int)SupplierUserRole.Manager);

                    var supplierCity = db.DispatchSupplierCities.IncludeAll("VehicleTypes", "VehicleTypes.VehicleType").SingleOrDefault(c => c.SupplierId == supplier.Id && c.CityId == cityId);
                    info.CityVehicleTypes = supplierCity.VehicleTypes;
                    citySupplierInfos.Add(info);
                }

                return citySupplierInfos;
            }
        }

 public DispatchWorldwide GetWorldwide()
 {
     using (var db = new LomsContext())
     {
         return db.DispatchWorldwides.IncludeAll("Suburb", "Suburb.Country", "Suburb.State", "Suburb.State.Country").FirstOrDefault();
     }
 }

 public Association GetAssociation()
 {
     using (var db = new LomsContext())
     {
         return db.Associations.SingleOrDefault(a => a.Id == CurrentAssociationId);
     }
 }

        public IEnumerable<AssociationUserCreditCard> GetCreditCards(int profileId, SearchRequest searchRequest)
        {
            using (var db = new LomsContext())
            {
                var query = db.AssociationUserCreditCards.IncludeAll("Info")
                      .Where(a => a.AssociationUserId == profileId);

                if (!string.IsNullOrWhiteSpace(searchRequest.SearchFilterValue))
                {
                    if (searchRequest.SearchFilter == "Nickname")
                        query = from card in query
                                where card.Nickname.Contains(searchRequest.SearchFilterValue)
                                select card;
                }

                var cards = query.OrderBy(a => a.Nickname).ToList();
                cards.ForEach(card =>
                {
                    card.Number = ObfuscateCreditCardNumber(card.Info.Number);
                    card.Info = null;
                    card.AcceptChanges();
                });

                return cards;
            }
        }

        public static double GetRate(LomsContext db, Booking booking, DebugWriter debugInfoWriter)
        {
            double extras;
            bool autoPending = false;

            double price = 0.0;

            try
            {
                price = GetBaseRateWithAdminFees(db, booking, debugInfoWriter, out autoPending, out extras);
                if (price == 0.0 || autoPending)
                    return 0.0;
            }
            catch (Exception ex)
            {
                debugInfoWriter.WriteLine("Exception during GetBaseRateWithAdminFees!");
                debugInfoWriter.WriteLine(ex.ToString());
                return 0.0;
            }

            RateHelper.ApplyVehicleMargin(db, booking, debugInfoWriter, ref price);

            price += extras;

            RateHelper.ApplyHourZone(db, booking, debugInfoWriter, ref price);

            //RateHelper.ApplyEventMargin(db, booking, debugInfoWriter, ref price, ref autoPending, ref eventName);
            //if (autoPending)
            //    return 0.0;

            return price;
        }

        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                string guidStr = Page.RouteData.Values["guid"] as string;
                Guid guid;
                if (guidStr == null || !Guid.TryParseExact(guidStr, "D", out guid))
                {
                    multiView1.SetActiveView(viewError);
                    lblError.Text = "Wrong reset guid!";
                    return;
                }
                else
                {
                    using (var db = new LomsContext())
                    {
                        var pwdReset = db.AssociationUserPasswordResets.FirstOrDefault(a => a.Guid == guid);
                        if (pwdReset == null)
                        {
                            multiView1.SetActiveView(viewError);
                            lblError.Text = "Wrong reset guid!";
                            return;
                        }

                        var user = db.AssociationUsers.First(u => u.Id == pwdReset.AssociationUserId);

                        lblUserWelcome.Text = string.Format("Welcome, {0}.", user.FullName.ToUpper());
                        multiView1.SetActiveView(viewPwd);
                    }
                }
            }
        }

 public IEnumerable<AssociationUserCreditCard> GetCreditCards(int profileId, SearchRequest searchRequest)
 {
     using (var db = new LomsContext())
     {
         return GetCreditCards(db, profileId, searchRequest);
     }
 }

        public static bool AllocateVehicle(LomsContext db, Booking booking, bool isPhantom, StringBuilder debug)
        {
            int vehicleTypeId = booking.VehicleTypeId.Value;
            var pickUpTime = booking.PickUpTime.Value;
            int jorneyLength = 30; //min

            DateTime fromDate = pickUpTime.Date;
            DateTime toDate = pickUpTime.AddMinutes(jorneyLength).Date;

            int fromTime = (((int)pickUpTime.TimeOfDay.TotalMinutes) / 30) * 30;
            int toTime = (((int)pickUpTime.AddMinutes(jorneyLength).TimeOfDay.TotalMinutes) / 30) * 30;

            if (!CheckAvailability(db, booking.Id, booking.CityId, vehicleTypeId, fromDate, toDate, fromTime, toTime, isPhantom, debug))
                return false;

            if (booking.AllocatedVehicle == null)
                booking.AllocatedVehicle = new BookingAllocatedVehicle() { BookingId = booking.Id };

            booking.AllocatedVehicle.CityId = booking.CityId;
            booking.AllocatedVehicle.VehicleTypeId = vehicleTypeId;
            booking.AllocatedVehicle.From = fromDate.AddMinutes(fromTime);
            booking.AllocatedVehicle.To = toDate.AddMinutes(toTime);
            booking.AllocatedVehicle.IsPhantom = isPhantom;

            return true;
        }

 public Booking GetBooking(int id)
 {
     using (var db = new LomsContext())
     {
         return GetBooking(db, id);
     }
 }

        public AssociationUserAddress SaveAddress(AssociationUserAddress address)
        {
            try
            {
                using (var db = new LomsContext())
                {
                    if (address.SuburbId != null)
                    {
                        address.Country = null;
                        address.State = null;
                    }
                    else if (address.StateId != null)
                        address.Country = null;

                    db.AssociationUserAddresses.ApplyChanges(address);
                    db.SaveChanges();

                    return db.AssociationUserAddresses.IncludeAll("Country", "State", "State.Country", "Suburb", "Suburb.Country", "Suburb.State", "Suburb.State.Country")
                        .FirstOrDefault(a => a.Id == address.Id);
                }
            }
            catch (Exception ex)
            {
                address.AddError("Error", ex.Message);
                return address;
            }
        }

        public DispatchUser SaveWorldwideUser(DispatchUser user, byte[] imageBytes, bool deleteImage)
        {
            int managerId = int.Parse(((FormsIdentity)(HttpContext.Current.User.Identity)).Ticket.UserData);

            using (var scope = new TransactionScope())
            using (var db = new LomsContext())
            {
                if (user.Id == 0)
                {
                    user.Login = user.FirstName[0] + user.LastName;

                    var staffManager = (from m in db.DispatchUsers
                                        where m.Id == managerId
                                        select m).Single();

                    user.CreatedBy = staffManager.FirstName + " " + staffManager.LastName;
                    user.CreatedDate = DateTime.UtcNow;
                }

                if (user.Id == 0)
                {
                    if (user.Id == 0 && string.IsNullOrEmpty(user.Pwd))
                        user.Pwd = "123456!";

                    MembershipCreateStatus ret;
                    MembershipUser membershipUser = Membership.CreateUser(user.Login, user.Pwd, user.Email, "Who am I?", "I", true, null, out ret);
                    if (ret != MembershipCreateStatus.Success)
                        throw new ApplicationException(ret.ToString());


                    user.AspNetUserId = (Guid)membershipUser.ProviderUserKey;
                }
                else if (!string.IsNullOrEmpty(user.Pwd))
                {
                    MembershipUser membershipUser = Membership.GetUser(user.Login);
                    string tempPwd = membershipUser.ResetPassword();
                    membershipUser.ChangePassword(tempPwd, user.Pwd);
                }

                if (!Roles.IsUserInRole(user.Login, RoleName.DispatchUser))
                    Roles.AddUserToRole(user.Login, RoleName.DispatchUser);

                if (user.Role == DispatchUserRole.Manager && !Roles.IsUserInRole(user.Login, RoleName.DispatchManager))
                    Roles.AddUserToRole(user.Login, RoleName.DispatchManager);
                else if (user.Role != DispatchUserRole.Manager && Roles.IsUserInRole(user.Login, RoleName.DispatchManager))
                    Roles.RemoveUserFromRole(user.Login, RoleName.DispatchManager);

                db.DispatchUsers.ApplyChanges(user);
                db.SaveChanges();

                user = db.DispatchUsers.IncludeAll("Suburb", "Suburb.Country", "Suburb.State", "Suburb.State.Country")
                    .FirstOrDefault(a => a.Id == user.Id);

                scope.Complete();

                return user;
            }
        }

 public string GetAssociationName()
 {
     using (var db = new LomsContext())
     {
         return (from a in db.Associations
                 where a.Id == CurrentAssociationId
                 select a.Name).FirstOrDefault();
     }
 }

 public Association GetCurrentAssociation()
 {
     var associationId = (int)HttpContext.Current.Items["AssociationId"];
     using (var db = new LomsContext())
     {
         var association = db.Associations.Include("Country").FirstOrDefault(a => a.Id == associationId);
         return association;
     }
 }

 public IEnumerable<DispatchUser> GetWorldwideUsers()
 {
     using (var db = new LomsContext())
     {
         return db.DispatchUsers.IncludeAll("Country", "Suburb", "Suburb.Country", "Suburb.State", "Suburb.State.Country")
             .Where(u => u.RegionId == null && u.DistrictId == null)
             .ToList();
     }
 }

 public AssociationUser GetUser()
 {
     using (var db = new LomsContext())
     {
         int currentUserId = CurrentUserId();
         var user = db.AssociationUsers.IncludeAll("Country").FirstOrDefault(u => u.Id == currentUserId);
         return user;
     }
 }