public TariffDetailsViewModel(Tariff tariff = null)
{
EditDevicesCommand = new RelayCommand(OnEditDevicesCommand);
TariffTypes = new ObservableCollection<TariffType>(Enum.GetValues(typeof(TariffType)).Cast<TariffType>());
TariffParts = new ObservableCollection<TariffPartViewModel>();
if (tariff == null)
{
IsNew = true;
Tariff = new Tariff
{
Description = "",
Devices = new List<Device>(),
Name = "Новый тариф",
TariffParts = new List<TariffPart>(),
};
Title = "Создание нового тарифа";
SelectedTariffPartsNumber = 1;
}
else
{
IsNew = false;
Tariff = tariff;
Title = "Редактирование тарифа: " + tariff.TariffType.ToDescription();
SelectedTariffPartsNumber = tariff.TariffParts.Count;
SelectedTariffType = tariff.TariffType;
}
GetMaxTariffParts();
}
public TariffSelectionViewModel(DeviceDetailsViewModel parentViewModel)
{
Tariffs = new ObservableCollection<Tariff>(DbCache.Tariffs.Where(x =>
x.TariffType == parentViewModel.TariffType &&
x.TariffParts.Count <= parentViewModel.Device.MaxTatiffParts));
_emptyTariff = new Tariff { Name = "Открепить от тарифа" };
Tariffs.Insert(0, _emptyTariff);
if(parentViewModel.Tariff != null)
SelectedTariff = Tariffs.FirstOrDefault(x => x.UID == parentViewModel.Tariff.UID);
}
public static void CreateTariff(Tariff tariff)
{
using (var context = DatabaseContext.Initialize())
{
var devicesToUpdate = tariff.Devices;
tariff.Devices = new List<Device>();
var tariffEntity = context.Tariffs.Add(tariff);
foreach (var device in devicesToUpdate)
{
var dbDevice = context.Devices.FirstOrDefault(x => x.UID == device.UID);
if (dbDevice != null)
dbDevice.TariffUID = tariff.UID;
}
context.SaveChanges();
}
Tariffs.Add(tariff);
}
public static void UpdateTariff(Tariff tariff)
{
using (var context = DatabaseContext.Initialize())
{
var tariffEntity = context.Tariffs.Include(x => x.Devices).Include(x => x.TariffParts).FirstOrDefault(x => x.UID == tariff.UID);
if (tariffEntity != null)
{
context.TariffParts.RemoveRange(tariffEntity.TariffParts);
tariffEntity.UID = tariff.UID;
tariffEntity.Name = tariff.Name;
tariffEntity.Description = tariff.Description;
tariffEntity.TariffType = tariff.TariffType;
tariffEntity.IsDiscount = tariff.IsDiscount;
tariffEntity.Devices = new List<Device>();
var devicesToUpdate = tariff.Devices;
foreach (var device in devicesToUpdate)
{
var dbDevice = context.Devices.FirstOrDefault(x => x.UID == device.UID);
if (dbDevice != null)
dbDevice.TariffUID = tariff.UID;
tariffEntity.Devices.Add(dbDevice);
}
tariffEntity.TariffParts = new List<TariffPart>();
tariffEntity.TariffParts.AddRange(tariff.TariffParts
.Select(x => new TariffPart
{
UID = x.UID,
Price = x.Price,
Threshold = x.Threshold,
Discount = x.Discount,
StartTime = x.StartTime,
Tariff = tariffEntity,
}));
context.SaveChanges();
}
}
Tariffs.RemoveAll(x => x.UID == tariff.UID);
Tariffs.Add(tariff);
}
public TariffDevicesViewModel(Tariff tariff)
{
_tariff = tariff;
Title = "Выбор счётчиков для привязки";
Devices = new ObservableCollection<TariffDeviceViewModel>();
GetAllDevices();
SelectedDevices = new List<TariffDeviceViewModel>();
foreach (var device in Devices)
{
if (device.Device.TariffUID != null)
{
if (device.Device.TariffUID == _tariff.UID)
{
device.IsChecked = true;
}
else
{
device.HasTariff = true;
}
}
}
}
public FilterTariffViewModel(Tariff tariff)
{
Tariff = tariff;
}
public TariffViewModel (Tariff tariff)
{
Tariff = tariff;
}
//device is not deleted from dbcashe
public static void DeleteTariff(Tariff tariff)
{
using (var context = DatabaseContext.Initialize())
{
var tmp = context.Tariffs.FirstOrDefault(x => x.UID == tariff.UID);
foreach (var device in context.Devices)
{
device.Tariff = null;
}
context.Tariffs.Remove(tmp);
context.SaveChanges();
}
Tariffs.Remove(tariff);
}
public TariffPart(Tariff tariff)
{
UID = Guid.NewGuid();
Tariff = tariff;
}
