+классы

Confectionery/ConfectioneryDatabaseImplement/ConfectioneryDatabase.cs

@@ -0,0 +1,28 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ConfectioneryDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+
+namespace ConfectioneryDatabaseImplement
+{
+    public class ConfectioneryDatabase : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            if (optionsBuilder.IsConfigured == false)
+            {
+                optionsBuilder.UseSqlServer(@"Data Source=localhost\SQLEXPRESS;Initial Catalog=ConfectioneryDatabaseFull;Integrated
+                Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True");
+            }
+            base.OnConfiguring(optionsBuilder);
+        }
+        public virtual DbSet<Component> Components { set; get; }
+        public virtual DbSet<Pastry> Pastrys { set; get; }
+        public virtual DbSet<PastryComponent> PastryComponents { set; get; }
+        public virtual DbSet<Order> Orders { set; get; }
+    }
+}

Confectionery/ConfectioneryDatabaseImplement/Order.cs

@@ -0,0 +1,70 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Enums;
+using ConfectioneryDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConfectioneryDatabaseImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public int Count { get; private set; }
+        [Required]
+        public double Sum { get; private set; }
+        [Required]
+        public OrderStatus Status { get; private set; }
+        [Required]
+        public DateTime DateCreate { get; private set; }
+        public DateTime? DateImplement { get; private set; }
+        [Required]
+        public int PastryId { get; private set; }
+        public virtual Pastry Pastry { get; private set; }
+        public static Order? Create(ConfectioneryDatabase context, OrderBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement,
+                PastryId = model.PastryId,
+                Pastry = context.Pastrys.FirstOrDefault(x => x.Id == model.PastryId)
+            };
+        }
+
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+
+        public OrderViewModel GetViewModel => new()
+        {
+            PastryId = PastryId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+            PastryName = Pastry.PastryName,
+            Id = Id,
+        };
+    }
+}

Confectionery/ConfectioneryDatabaseImplement/Pastry.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+
+namespace ConfectioneryDatabaseImplement.Models
+{
+    public class Pastry : IPastryModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public string PastryName { get; set; } = string.Empty;
+        [Required]
+        public double Price { get; set; }
+        private Dictionary<int, (IComponentModel, int)>? _pastryComponents = null;
+        [NotMapped]
+        public Dictionary<int, (IComponentModel, int)> PastryComponents
+        {
+            get
+            {
+                if (_pastryComponents == null)
+                {
+                    _pastryComponents = Components
+                    .ToDictionary(recPC => recPC.ComponentId, recPC =>
+                   (recPC.Component as IComponentModel, recPC.Count));
+                }
+                return _pastryComponents;
+            }
+        }
+        [ForeignKey("PastryId")]
+        public virtual List<PastryComponent> Components { get; set; } = new();
+        [ForeignKey("PastryId")]
+        public virtual List<Order> Orders { get; set; } = new();
+        public static Pastry Create(ConfectioneryDatabase context, PastryBindingModel model)
+        {
+            return new Pastry()
+            {
+                Id = model.Id,
+                PastryName = model.PastryName,
+                Price = model.Price,
+                Components = model.PastryComponents.Select(x => new PastryComponent
+                {
+                    Component = context.Components.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+        public void Update(PastryBindingModel model)
+        {
+            PastryName = model.PastryName;
+            Price = model.Price;
+        }
+        public PastryViewModel GetViewModel => new()
+        {
+            Id = Id,
+            PastryName = PastryName,
+            Price = Price,
+            PastryComponents = PastryComponents
+        };
+        public void UpdateComponents(ConfectioneryDatabase context, PastryBindingModel model)
+        {
+            var pastryComponents = context.PastryComponents.Where(rec => rec.PastryId == model.Id).ToList();
+            if (pastryComponents != null && pastryComponents.Count > 0)
+            { // удалили те, которых нет в модели
+                context.PastryComponents.RemoveRange(pastryComponents.Where(rec => !model.PastryComponents.ContainsKey(rec.ComponentId)));
+                context.SaveChanges();
+                // обновили количество у существующих записей
+                foreach (var updateComponent in pastryComponents)
+                {
+                    updateComponent.Count = model.PastryComponents[updateComponent.ComponentId].Item2;
+                    model.PastryComponents.Remove(updateComponent.ComponentId);
+                }
+                context.SaveChanges();
+            }
+            var pastry = context.Pastrys.First(x => x.Id == Id);
+            foreach (var pc in model.PastryComponents)
+            {
+                context.PastryComponents.Add(new PastryComponent
+                {
+                    Pastry = pastry,
+                    Component = context.Components.First(x => x.Id == pc.Key),
+                    Count = pc.Value.Item2
+                });
+                context.SaveChanges();
+            }
+            _pastryComponents = null;
+        }
+    }
+}

Confectionery/ConfectioneryDatabaseImplement/PastryComponent.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.ComponentModel.DataAnnotations;
+
+
+namespace ConfectioneryDatabaseImplement.Models
+{
+    public class PastryComponent
+    {
+        public int Id { get; set; }
+        [Required]
+        public int PastryId { get; set; }
+        [Required]
+        public int ComponentId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Component Component { get; set; } = new();
+        public virtual Pastry Pastry { get; set; } = new();
+    }
+}