99 lines
3.8 KiB
C#
99 lines
3.8 KiB
C#
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using SoftwareInstallationDataModels.Models;
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using System.ComponentModel.DataAnnotations.Schema;
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using System.ComponentModel.DataAnnotations;
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using SoftwareInstallationContracts.BindingModels;
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using SoftwareInstallationContracts.ViewModels;
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namespace SoftwareInstallationDatabaseImplement.Models
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{
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public class Package : IPackageModel
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{
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public int Id { get; set; }
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[Required]
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public string PackageName { get; set; } = string.Empty;
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[Required]
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public double Price { get; set; }
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private Dictionary<int, (IComponentModel, int)>? _packageComponents = null;
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[NotMapped]
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public Dictionary<int, (IComponentModel, int)> PackageComponents
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{
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get
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{
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if (_packageComponents == null)
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{
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_packageComponents = Components
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.ToDictionary(recPC => recPC.ComponentId, recPC =>
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(recPC.Component as IComponentModel, recPC.Count));
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}
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return _packageComponents;
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}
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}
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[ForeignKey("PackageId")]
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public virtual List<PackageComponent> Components { get; set; } = new();
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[ForeignKey("PackageId")]
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public virtual List<Order> Orders { get; set; } = new();
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public static Package Create(SoftwareInstallationDatabase context, PackageBindingModel model)
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{
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return new Package()
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{
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Id = model.Id,
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PackageName = model.PackageName,
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Price = model.Price,
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Components = model.PackageComponents.Select(x => new PackageComponent
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{
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Component = context.Components.First(y => y.Id == x.Key),
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Count = x.Value.Item2
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}).ToList()
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};
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}
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public void Update(PackageBindingModel model)
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{
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PackageName = model.PackageName;
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Price = model.Price;
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}
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public PackageViewModel GetViewModel => new()
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{
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Id = Id,
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PackageName = PackageName,
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Price = Price,
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PackageComponents = PackageComponents
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};
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public void UpdateComponents(SoftwareInstallationDatabase context, PackageBindingModel model)
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{
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var packageComponents = context.PackageComponents
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.Where(rec => rec.PackageId == model.Id)
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.ToList();
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if (packageComponents != null && packageComponents.Count > 0)
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{ // удалили те, которых нет в модели
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context.PackageComponents
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.RemoveRange(packageComponents
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.Where(rec => !model.PackageComponents
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.ContainsKey(rec.ComponentId)));
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context.SaveChanges();
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// обновили количество у существующих записей
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foreach (var updateComponent in packageComponents.Where(x => model.PackageComponents.ContainsKey(x.ComponentId)))
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{
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updateComponent.Count = model.PackageComponents[updateComponent.ComponentId].Item2;
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model.PackageComponents.Remove(updateComponent.ComponentId);
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}
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context.SaveChanges();
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}
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var package = context.Packages.First(x => x.Id == Id);
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foreach (var pc in model.PackageComponents)
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{
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context.PackageComponents.Add(new PackageComponent
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{
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Package = package,
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Component = context.Components.First(x => x.Id == pc.Key),
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Count = pc.Value.Item2
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});
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context.SaveChanges();
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}
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_packageComponents = null;
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}
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}
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}
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