110 lines
3.9 KiB
C#
110 lines
3.9 KiB
C#
using Contracts.BindingModels;
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using Contracts.ViewModels;
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using DataModels.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.Diagnostics;
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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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using static System.Runtime.InteropServices.JavaScript.JSType;
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namespace DatabaseImplement.Models
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{
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public class Supplier : ISupplier
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{
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public Guid Id { get; set; }
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[Required]
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public string Name { get; set; } = string.Empty;
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[Required]
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public int Deals { get; set; }
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private Dictionary<Guid, (IProduct, int)>? _availibleProducts = null;
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[NotMapped]
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public Dictionary<Guid, (IProduct, int)> AvailibleProducts
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{
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get
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{
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if (_availibleProducts == null)
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{
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_availibleProducts = Products
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.ToDictionary(recPC => recPC.Id, recPC =>
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(recPC.Product as IProduct, recPC.Count));
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}
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return _availibleProducts;
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}
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}
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[ForeignKey("SupplierId")]
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public virtual List<SupplierProduct> Products { get; set; } = new();
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public static Supplier Create(Database context, SupplierBindingModel model)
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{
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return new Supplier()
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{
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Id = model.Id,
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Name = model.Name,
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Products = model.AvailibleProducts.Select(x => new
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SupplierProduct
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{
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Product = context.Products.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(Database context, SupplierBindingModel model)
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{
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Name = model.Name;
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Products = model.AvailibleProducts.Select(x => new
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SupplierProduct
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{
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Product = context.Products.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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public SupplierViewModel GetViewModel
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{
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get
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{
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var context = new Database();
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return new()
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{
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Id = Id,
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Name = Name,
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AvailibleProducts = AvailibleProducts
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};
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}
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}
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public void UpdateProducts(Database context, SupplierBindingModel model)
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{
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var supplierProducts = context.SupplierProducts.Where(rec =>
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rec.Id == model.Id).ToList();
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if (supplierProducts != null && supplierProducts.Count > 0)
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{ // удалили те, которых нет в модели
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context.SupplierProducts.RemoveRange(supplierProducts.Where(rec
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=> !model.AvailibleProducts.ContainsKey(rec.ProductId)));
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context.SaveChanges();
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// обновили количество у существующих записей
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foreach (var updateProduct in supplierProducts)
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{
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updateProduct.Count = model.AvailibleProducts[updateProduct.ProductId].Item2;
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model.AvailibleProducts.Remove(updateProduct.ProductId);
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}
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context.SaveChanges();
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}
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var supplier = context.Suppliers.First(x => x.Id == Id);
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foreach (var pc in model.AvailibleProducts)
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{
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context.SupplierProducts.Add(new SupplierProduct
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{
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Supplier = supplier,
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Product = context.Products.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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_availibleProducts = null;
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}
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}
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}
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