static IQueryable<Journal> GetFiltered(Filter filter, DatabaseContext context)
{
IQueryable<Journal> result = context.Journal;
if (filter.JournalTypes.Any())
result = result.Where(x => filter.JournalTypes.Contains(x.JournalType));
if (filter.ConsumerUIDs.Any())
result = result.Where(x => filter.ConsumerUIDs.Contains(x.ObjectUID));
if (filter.DeviceUIDs.Any())
result = result.Where(x => filter.DeviceUIDs.Contains(x.ObjectUID));
if (filter.UserUIDs.Any())
result = result.Where(x => filter.UserUIDs.Contains(x.UserUID));
if (filter.TariffUIDs.Any())
result = result.Where(x => filter.TariffUIDs.Contains(x.ObjectUID));
result = result.Where(x => x.DateTime > filter.StartDate && x.DateTime < filter.EndDate);
if (filter.IsSortAsc)
result = result.OrderBy(x => x.DateTime);
else
result = result.OrderByDescending(x => x.DateTime);
return result;
}
void Update()
{
if (Filter == null)
Filter = new Filter();
else
{
switch (Filter.StateType)
{
case StateType.LastHours:
Filter.EndDate = DateTime.Now;
Filter.StartDate = DateTime.Now.AddHours(-Filter.Count);
break;
case StateType.LastDays:
Filter.EndDate = DateTime.Now;
Filter.StartDate = DateTime.Now.AddDays(-Filter.Count);
break;
}
}
var count = DbCache.GetJournalCount(Filter);
if (count.HasValue)
{
TotalPageNumber = count.Value / Filter.PageSize + 1;
CurrentPageNumber = 1;
}
}
public DateTimeViewModel(Filter filter)
{
StateTypes = new ObservableCollection<StateType>(Enum.GetValues(typeof(StateType)).Cast<StateType>());
SelectedStateType = filter.StateType;
Count = filter.Count;
IsSortAsc = filter.IsSortAsc;
PageSize = filter.PageSize;
StartDateTime = new DateTimePairViewModel(filter.StartDate);
EndDateTime = new DateTimePairViewModel(filter.EndDate);
}
public FilterJournalViewModel(Filter filter )
{
ClearCommand = new RelayCommand(OnClear);
Title = "Настройки фильтра";
DateTimeViewModel = new DateTimeViewModel(filter);
FilterEventsViewModel = new FilterEventsViewModel(filter);
FilterConsumersViewModel = new FilterConsumersViewModel(filter);
FilterDevicesViewModel = new FilterDevicesViewModel(filter);
FilterTariffsViewModel = new FilterTariffsViewModel(filter);
FilterUsersViewModel = new FilterUsersViewModel(filter);
}
public FilterConsumersViewModel(Filter filter)
{
BuildTree();
AllConsumers.ForEach(x=>
{
if (filter.ConsumerUIDs.Contains(x.Consumer.UID))
x.IsChecked = true;
});
if (RootcConsumer != null)
{
RootcConsumer.IsExpanded = true;
foreach (var child in RootcConsumer.Children)
child.IsExpanded = true;
}
}
public static int? GetJournalCount(Filter filter)
{
try
{
using (var context = DatabaseContext.Initialize())
{
return GetFiltered(filter, context).Count();
}
}
catch (Exception e)
{
MessageBoxService.ShowException(e);
return null;
}
}
void OnShowFilter()
{
var filterJournalViewModel = new FilterJournalViewModel(Filter);
if(DialogService.ShowModalWindow(filterJournalViewModel))
{
Filter = new Filter();
Filter.JournalTypes = filterJournalViewModel.FilterEventsViewModel.GetJournalTypes();
Filter.ConsumerUIDs = filterJournalViewModel.FilterConsumersViewModel.GetConsumerUIDs();
Filter.DeviceUIDs = filterJournalViewModel.FilterDevicesViewModel.GetDeviceUIDs();
Filter.TariffUIDs = filterJournalViewModel.FilterTariffsViewModel.GetTariffUIDs();
Filter.UserUIDs = filterJournalViewModel.FilterUsersViewModel.GetUserUIDs();
filterJournalViewModel.DateTimeViewModel.Save(Filter);
Update();
}
}
public static List<Journal> GetJournalPage(Filter filter, int page)
{
try
{
using (var context = DatabaseContext.Initialize())
{
var journalItems = GetFiltered(filter, context);
return journalItems.Skip((page - 1) * filter.PageSize).Take(filter.PageSize).ToList();
}
}
catch (Exception e)
{
MessageBoxService.ShowException(e);
return null;
}
}
public FilterDevicesViewModel(Filter filter)
{
BildTree();
if (AllDevices != null)
{
AllDevices.ForEach(x =>
{
if (filter.DeviceUIDs.Contains(x.Device.UID))
x.IsChecked = true;
});
}
if (RootDevice != null)
{
RootDevice.IsExpanded = true;
foreach (var child in RootDevice.Children)
child.IsExpanded = true;
}
}
public void Save(Filter filter)
{
switch (SelectedStateType)
{
case StateType.LastHours:
filter.StartDate = DateTime.Now.AddHours(-Count);
break;
case StateType.LastDays:
filter.StartDate = DateTime.Now.AddDays(-Count);
break;
case StateType.FromDate:
filter.StartDate = StartDateTime.DateTime;
break;
case StateType.RangeDate:
filter.StartDate = StartDateTime.DateTime;
filter.EndDate = EndDateTime.DateTime;
break;
}
filter.StateType = SelectedStateType;
filter.Count = Count;
filter.IsSortAsc = IsSortAsc;
filter.PageSize = PageSize;
}
