101 lines
3.6 KiB
C#
101 lines
3.6 KiB
C#
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using System;
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using System.Collections.Generic;
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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 System.ComponentModel.DataAnnotations.Schema;
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using System.ComponentModel.DataAnnotations;
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using FoodOrdersDataModels.Models;
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using FoodOrdersContracts.BindingModels;
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using FoodOrdersContracts.ViewModels;
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namespace FoodOrdersDatabaseImplement.Models
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{
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public class Dish : IDishModel
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{
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public int Id { get; private set; }
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[Required]
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public string DishName { get; private set; } = string.Empty;
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[Required]
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public double Price { get; private set; }
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private Dictionary<int, (IComponentModel, int)>? _dishComponents = null;
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[NotMapped]
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public Dictionary<int, (IComponentModel, int)> DishComponents
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{
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get
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{
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if (_dishComponents == null)
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{
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_dishComponents = Components.ToDictionary(recPC => recPC.ComponentId, recPC => (recPC.Component as IComponentModel, recPC.Count));
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}
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return _dishComponents;
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}
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}
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[ForeignKey("DishId")]
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public virtual List<DishComponent> Components { get; set; } = new();
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[ForeignKey("DishId")]
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public virtual List<Order> Orders { get; set; } = new();
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public static Dish? Create(FoodOrdersDatabase context, DishBindingModel model)
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{
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var components = context.Components;
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return new Dish()
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{
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Id = model.Id,
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DishName = model.DishName,
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Price = model.Price,
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Components = model.DishComponents.Select(x => new DishComponent
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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(DishBindingModel model)
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{
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DishName = model.DishName;
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Price = model.Price;
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}
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public DishViewModel GetViewModel => new()
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{
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Id = Id,
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DishName = DishName,
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Price = Price,
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DishComponents = DishComponents
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};
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public void UpdateComponents(FoodOrdersDatabase context, DishBindingModel model)
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{
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var dishComponents = context.DishComponents.Where(rec => rec.DishId == model.Id).ToList();
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if (dishComponents != null && DishComponents.Count > 0)
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{ // удалили те, которых нет в модели
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context.DishComponents.RemoveRange(dishComponents.Where(rec => !model.DishComponents.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 dishComponents)
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{
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updateComponent.Count = model.DishComponents[updateComponent.ComponentId].Item2;
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model.DishComponents.Remove(updateComponent.ComponentId);
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}
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context.SaveChanges();
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}
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var dish = context.Dishs.First(x => x.Id == Id);
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foreach (var pc in model.DishComponents)
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{
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context.DishComponents.Add(new DishComponent
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{
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Dish = dish,
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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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_dishComponents = null;
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}
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}
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}
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