/// <summary>
/// Initializes a new instance of the <see cref="UnitOfMeasureModel"/> class.
/// This then caches the save and cancel commands so that it can
/// notify any views based on them.
/// </summary>
/// <param name="model">The model data to copy.</param>
/// <param name="save">The save command that is based on this unit.</param>
/// <param name="cancel">The cancel command that is based on this unit.</param>
public ItemViewModel(ItemModel model, AsyncCommand save, AsyncCommand cancel, ObservableCollection <UnitOfMeasureModel> units)
: this(save, cancel, units)
{
this.Model = model;
this.Id = model.Id;
this.name = model.Name;
this.lowerBound = model.Specification.LowerBound;
this.upperBound = model.Specification.UpperBound;
this.unit = units.FirstOrDefault(u => u.Id == model.Specification.UnitOfMeasure.Id);
this.isDeleted = model.IsDeleted;
this.meter = model.Meter;
this.comparisonType = ComparisonTypeViewModel.Locate(model.Specification.ComparisonType);
this.SetModificationType(Shared.ModificationType.Update);
}
/// <summary>
/// Initializes a new instance of the <see cref="UnitOfMeasureScreenViewModel"/> class.
/// This also sets up all commands and data objects in the view.
/// </summary>
public ItemScreenViewModel(RegionViewModel region, StationViewModel station)
{
this.Units = new ObservableCollection <UnitOfMeasureModel>();
this.Items = new ObservableCollection <ItemViewModel>();
this.Cancel = new AsyncCommand(
(obj) =>
{
this.Selected = null;
this.CurrentItem = new ItemViewModel(this.Save, this.Cancel, this.Units);
}, this.CanCancel);
this.Save = new AsyncCommand(
async(obj) =>
{
var model = new ItemModel
{
Id = this.currentItem.Id,
Name = this.currentItem.Name,
IsDeleted = this.currentItem.IsDeleted,
Meter = this.currentItem.Meter,
StationId = this.BelongsTo.Id,
Specification = new SpecificationModel
{
ComparisonType = this.currentItem.ComparisonType.Name,
LowerBound = this.currentItem.LowerBound,
UpperBound = this.currentItem.UpperBound,
UnitOfMeasure = this.currentItem.Unit
}
};
var existing = this.Items.FirstOrDefault(u => u.Id == this.currentItem.Id);
if (existing == null)
{
model = await base.Api.PostAsync <ItemModel>(
$"{Constants.Endpoints.Items}", model);
if (model == null)
{
return;
}
var newCopy = new ItemViewModel(model, Save, Cancel, Units);
this.Items.Add(newCopy);
}
else
{
model = await base.Api.PutAsync <ItemModel>(
$"{Constants.Endpoints.Items}", model);
if (model == null)
{
return;
}
existing.Name = model.Name;
existing.ComparisonType = ComparisonTypeViewModel.Locate(model.Specification.ComparisonType);
existing.IsDeleted = model.IsDeleted;
existing.UpperBound = model.Specification.UpperBound;
existing.LowerBound = model.Specification.LowerBound;
existing.Unit = model.Specification.UnitOfMeasure;
existing.Meter = model.Meter;
existing.SetModificationType(ModificationType.Update);
}
this.CurrentItem = new ItemViewModel(this.Save, this.Cancel, this.Units);
this.Selected = null;
}, this.ValidateInput);
this.Crumbs.Add(new BreadcrumbItemModel("Admin", this.GoToAdmin));
this.CurrentItem = new ItemViewModel(this.Save, this.Cancel, this.Units);
this.BelongsTo = station.Model;
this.SetupRegionBreadcrumb(region);
this.SetupStationBreadcrumb(station);
}
