100 lines
3.5 KiB
C#
100 lines
3.5 KiB
C#
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using GiftShopDataModels.Models;
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using System.ComponentModel.DataAnnotations.Schema;
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using System.ComponentModel.DataAnnotations;
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using GiftShopContracts.BindingModels;
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using GiftShopContracts.ViewModels;
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namespace GiftShopDatabaseImplement.Models
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{
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public class Gift : IGiftModel
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{
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public int Id { get; set; }
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[Required]
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public string GiftName { 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)>? _giftComponents = null;
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[NotMapped]
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public Dictionary<int, (IComponentModel, int)> GiftComponents
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{
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get
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{
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if (_giftComponents == null)
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{
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_giftComponents = Components.ToDictionary(recPC => recPC.ComponentId, recPC =>
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(recPC.Component as IComponentModel, recPC.Count));
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}
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return _giftComponents;
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}
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}
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[ForeignKey("GiftId")]
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public virtual List<GiftComponent> Components { get; set; } = new();
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[ForeignKey("GiftId")]
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public virtual List<Order> Orders { get; set; } = new();
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public static Gift Create(GiftShopDatabase context, GiftBindingModel model)
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{
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return new Gift()
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{
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Id = model.Id,
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GiftName = model.GiftName,
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Price = model.Price,
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Components = model.GiftComponents.Select(x => new GiftComponent
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{
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Component = context.Components.First(y => y.Id == x.Key), Count = x.Value.Item2
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}).ToList()
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};
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}
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public void Update(GiftBindingModel model)
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{
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GiftName = model.GiftName;
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Price = model.Price;
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}
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public GiftViewModel GetViewModel => new()
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{
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Id = Id,
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GiftName = GiftName,
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Price = Price,
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GiftComponents = GiftComponents
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};
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public void UpdateComponents(GiftShopDatabase context, GiftBindingModel model)
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{
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var giftComponents = context.GiftComponents.Where(rec => rec.GiftId == model.Id).ToList();
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if (giftComponents != null && giftComponents.Count > 0)
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{ // удалили те, которых нет в модели
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context.GiftComponents.RemoveRange(giftComponents.Where
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(rec => !model.GiftComponents.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 giftComponents)
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{
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updateComponent.Count = model.GiftComponents[updateComponent.ComponentId].Item2;
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model.GiftComponents.Remove(updateComponent.ComponentId);
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}
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context.SaveChanges();
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}
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var gift = context.Gifts.First(x => x.Id == Id);
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foreach (var pc in model.GiftComponents)
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{
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context.GiftComponents.Add(new GiftComponent
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{
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Gift = gift,
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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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_giftComponents = null;
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}
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}
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}
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