114 lines
3.9 KiB
C#
114 lines
3.9 KiB
C#
using RestaurantContracts.BindingModels;
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using RestaurantContracts.ViewModels;
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using RestaurantDataModels.Models;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.DataAnnotations;
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using System.ComponentModel.DataAnnotations.Schema;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace RestaurantDatabaseImplement.Models
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{
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public class Product : IProductModel
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{
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[Required]
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public string Type { get; private set; } = string.Empty;
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[Required]
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public int Price { get; private set; }
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[Required]
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public int Count { get; private set; }
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private Dictionary<int, (IComponentModel, int)>? _productComponents = null;
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[NotMapped]
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public Dictionary<int, (IComponentModel, int)> ProductComponents
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{
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get
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{
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if (_productComponents == null)
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{
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_productComponents = 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 _productComponents;
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}
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}
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public int Id { get; private set; }
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[ForeignKey("ProductId")]
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public virtual List<ProductComponent> Components { get; private set; } = new();
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[ForeignKey("ProductId")]
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public virtual List<OrderProduct> OrderProducts { get; private set; } = new();
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public static Product? Create(RestaurantDatabase context, ProductBindingModel? model)
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{
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if (model == null)
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{
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return null;
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}
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return new Product()
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{
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Id = model.Id,
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Type = model.Type,
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Price = model.Price,
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Components = model.ProductComponents.Select(x => new ProductComponent
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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(ProductBindingModel? model)
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{
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Type = model.Type;
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Price = model.Price;
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Count = model.Count;
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}
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public ProductViewModel GetViewModel => new()
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{
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Id = Id,
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Type = Type,
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Price = Price,
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Count = Count,
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ProductComponents = ProductComponents
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};
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public void UpdateComponents(RestaurantDatabase context, ProductBindingModel model)
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{
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var ProductComponents = context.ProductComponents.Where(rec => rec.ProductId == model.Id).ToList();
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if (ProductComponents != null && ProductComponents.Count > 0)
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{ // удалили те, которых нет в модели
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context.ProductComponents.RemoveRange(ProductComponents.Where(rec => !model.ProductComponents.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 ProductComponents)
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{
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updateComponent.Count = model.ProductComponents[updateComponent.ComponentId].Item2;
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model.ProductComponents.Remove(updateComponent.ComponentId);
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}
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context.SaveChanges();
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}
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var Product = context.Products.First(x => x.Id == Id);
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foreach (var pc in model.ProductComponents)
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{
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context.ProductComponents.Add(new ProductComponent
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{
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Product = Product,
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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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_productComponents = null;
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}
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}
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}
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