PIbd-21. Rodionov I.A. Lab work 05. Hard #13

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ILRodionov wants to merge 19 commits from lab5_hard into lab5_base
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@ -21,5 +21,9 @@ namespace IceCreamShopDatabaseImplement
public virtual DbSet<IceCreamComponent> IceCreamComponents { set; get; }
public virtual DbSet<Order> Orders { set; get; }
public virtual DbSet<Shop> Shops { set; get; }
public virtual DbSet<ShopIceCream> ShopIceCreams { set; get; }
}
}

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@ -0,0 +1,146 @@
using IceCreamShopContracts.BindingModels;
using IceCreamShopContracts.SearchModels;
using IceCreamShopContracts.StoragesContracts;
using IceCreamShopContracts.ViewModels;
using IceCreamShopDatabaseImplement.Models;
using IceCreamShopDataModels.Models;
using Microsoft.EntityFrameworkCore;
namespace IceCreamShopDatabaseImplement.Implements
{
public class ShopStorage : IShopStorage
{
public List<ShopViewModel> GetFullList()
{
using var context = new IceCreamShopDatabase();
return context.Shops
.Include(x => x.IceCreams)
.ThenInclude(x => x.IceCream)
.ToList()
.Select(x => x.GetViewModel)
.ToList();
}
public List<ShopViewModel> GetFilteredList(ShopSearchModel model)
{
if (string.IsNullOrEmpty(model.ShopName))
{
return new();
}
using var context = new IceCreamShopDatabase();
return context.Shops
.Include(x => x.IceCreams)
.ThenInclude(x => x.IceCream)
.Where(x => x.ShopName.Contains(model.ShopName))
.ToList()
.Select(x => x.GetViewModel)
.ToList();
}
public ShopViewModel? GetElement(ShopSearchModel model)
{
if (string.IsNullOrEmpty(model.ShopName) && !model.Id.HasValue)
{
return null;
}
using var context = new IceCreamShopDatabase();
return context.Shops
.Include(x => x.IceCreams)
.ThenInclude(x => x.IceCream)
.FirstOrDefault(x => (!string.IsNullOrEmpty(model.ShopName) && x.ShopName == model.ShopName) ||
(model.Id.HasValue && x.Id == model.Id))
?.GetViewModel;
}
public ShopViewModel? Insert(ShopBindingModel model)
{
using var context = new IceCreamShopDatabase();
var newShop = Shop.Create(context, model);
if (newShop == null)
{
return null;
}
context.Shops.Add(newShop);
context.SaveChanges();
return newShop.GetViewModel;
}
public ShopViewModel? Update(ShopBindingModel model)
{
using var context = new IceCreamShopDatabase();
using var transaction = context.Database.BeginTransaction();
try
{
var shop = context.Shops.FirstOrDefault(rec => rec.Id == model.Id);
if (shop == null)
{
return null;
}
shop.Update(model);
context.SaveChanges();
shop.UpdateIceCreams(context, model);
transaction.Commit();
return shop.GetViewModel;
}
catch
{
transaction.Rollback();
throw;
}
}
public ShopViewModel? Delete(ShopBindingModel model)
{
using var context = new IceCreamShopDatabase();
var element = context.Shops
.Include(x => x.IceCreams)
.FirstOrDefault(rec => rec.Id == model.Id);
if (element != null)
{
context.Shops.Remove(element);
context.SaveChanges();
return element.GetViewModel;
}
return null;
}
public bool MakeSale(IIceCreamModel model, int count)
{
using var context = new IceCreamShopDatabase();
using var transaction = context.Database.BeginTransaction();
try
{
foreach (var shop in context.Shops.Include(x => x.IceCreams).ThenInclude(x => x.IceCream)
.Where(x => x.IceCreams.Any(x => x.IceCreamId == model.Id))
.ToList())
{
var iceCream = shop.ShopIceCreams[model.Id];
int min = Math.Min(iceCream.Item2, count);
if (min == iceCream.Item2)
{
shop.ShopIceCreams.Remove(model.Id);
}
else
{
shop.ShopIceCreams[model.Id] = (iceCream.Item1, iceCream.Item2 - min);
}
shop.UpdateIceCreams(context, new() { Id = shop.Id, ShopIceCreams = shop.ShopIceCreams });
count -= min;
if (count == 0)
{
context.SaveChanges();
transaction.Commit();
return true;
}
}
transaction.Rollback();
return false;
}
catch
{
transaction.Rollback();
throw;
}
}
}
}

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@ -0,0 +1,250 @@
// <auto-generated />
using System;
using IceCreamShopDatabaseImplement;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Infrastructure;
using Microsoft.EntityFrameworkCore.Metadata;
using Microsoft.EntityFrameworkCore.Migrations;
using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
#nullable disable
namespace IceCreamShopDatabaseImplement.Migrations
{
[DbContext(typeof(IceCreamShopDatabase))]
[Migration("20240408110201_ShopAddition")]
partial class ShopAddition
{
/// <inheritdoc />
protected override void BuildTargetModel(ModelBuilder modelBuilder)
{
#pragma warning disable 612, 618
modelBuilder
.HasAnnotation("ProductVersion", "7.0.16")
.HasAnnotation("Relational:MaxIdentifierLength", 128);
SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.Component", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("int");
SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
b.Property<string>("ComponentName")
.IsRequired()
.HasColumnType("nvarchar(max)");
b.Property<double>("Cost")
.HasColumnType("float");
b.HasKey("Id");
b.ToTable("Components");
});
modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.IceCream", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("int");
SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
b.Property<string>("IceCreamName")
.IsRequired()
.HasColumnType("nvarchar(max)");
b.Property<double>("Price")
.HasColumnType("float");
b.HasKey("Id");
b.ToTable("IceCreams");
});
modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.IceCreamComponent", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("int");
SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
b.Property<int>("ComponentId")
.HasColumnType("int");
b.Property<int>("Count")
.HasColumnType("int");
b.Property<int>("IceCreamId")
.HasColumnType("int");
b.HasKey("Id");
b.HasIndex("ComponentId");
b.HasIndex("IceCreamId");
b.ToTable("IceCreamComponents");
});
modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.Order", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("int");
SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
b.Property<int>("Count")
.HasColumnType("int");
b.Property<DateTime>("DateCreate")
.HasColumnType("datetime2");
b.Property<DateTime?>("DateImplement")
.HasColumnType("datetime2");
b.Property<int>("IceCreamId")
.HasColumnType("int");
b.Property<int>("Status")
.HasColumnType("int");
b.Property<double>("Sum")
.HasColumnType("float");
b.HasKey("Id");
b.HasIndex("IceCreamId");
b.ToTable("Orders");
});
modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.Shop", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("int");
SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
b.Property<string>("Address")
.IsRequired()
.HasColumnType("nvarchar(max)");
b.Property<DateTime>("DateOpening")
.HasColumnType("datetime2");
b.Property<int>("IceCreamsMaximum")
.HasColumnType("int");
b.Property<string>("ShopName")
.IsRequired()
.HasColumnType("nvarchar(max)");
b.HasKey("Id");
b.ToTable("Shops");
});
modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.ShopIceCream", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("int");
SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
b.Property<int>("Count")
.HasColumnType("int");
b.Property<int>("IceCreamId")
.HasColumnType("int");
b.Property<int>("ShopId")
.HasColumnType("int");
b.HasKey("Id");
b.HasIndex("IceCreamId");
b.HasIndex("ShopId");
b.ToTable("ShopIceCreams");
});
modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.IceCreamComponent", b =>
{
b.HasOne("IceCreamShopDatabaseImplement.Models.Component", "Component")
.WithMany("IceCreamComponents")
.HasForeignKey("ComponentId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
b.HasOne("IceCreamShopDatabaseImplement.Models.IceCream", "IceCream")
.WithMany("Components")
.HasForeignKey("IceCreamId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
b.Navigation("Component");
b.Navigation("IceCream");
});
modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.Order", b =>
{
b.HasOne("IceCreamShopDatabaseImplement.Models.IceCream", "IceCream")
.WithMany("Orders")
.HasForeignKey("IceCreamId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
b.Navigation("IceCream");
});
modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.ShopIceCream", b =>
{
b.HasOne("IceCreamShopDatabaseImplement.Models.IceCream", "IceCream")
.WithMany("ShopIceCreams")
.HasForeignKey("IceCreamId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
b.HasOne("IceCreamShopDatabaseImplement.Models.Shop", "Shop")
.WithMany("IceCreams")
.HasForeignKey("ShopId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
b.Navigation("IceCream");
b.Navigation("Shop");
});
modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.Component", b =>
{
b.Navigation("IceCreamComponents");
});
modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.IceCream", b =>
{
b.Navigation("Components");
b.Navigation("Orders");
b.Navigation("ShopIceCreams");
});
modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.Shop", b =>
{
b.Navigation("IceCreams");
});
#pragma warning restore 612, 618
}
}
}

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@ -0,0 +1,78 @@
using System;
using Microsoft.EntityFrameworkCore.Migrations;
#nullable disable
namespace IceCreamShopDatabaseImplement.Migrations
{
/// <inheritdoc />
public partial class ShopAddition : Migration
{
/// <inheritdoc />
protected override void Up(MigrationBuilder migrationBuilder)
{
migrationBuilder.CreateTable(
name: "Shops",
columns: table => new
{
Id = table.Column<int>(type: "int", nullable: false)
.Annotation("SqlServer:Identity", "1, 1"),
ShopName = table.Column<string>(type: "nvarchar(max)", nullable: false),
Address = table.Column<string>(type: "nvarchar(max)", nullable: false),
DateOpening = table.Column<DateTime>(type: "datetime2", nullable: false),
IceCreamsMaximum = table.Column<int>(type: "int", nullable: false)
},
constraints: table =>
{
table.PrimaryKey("PK_Shops", x => x.Id);
});
migrationBuilder.CreateTable(
name: "ShopIceCreams",
columns: table => new
{
Id = table.Column<int>(type: "int", nullable: false)
.Annotation("SqlServer:Identity", "1, 1"),
ShopId = table.Column<int>(type: "int", nullable: false),
IceCreamId = table.Column<int>(type: "int", nullable: false),
Count = table.Column<int>(type: "int", nullable: false)
},
constraints: table =>
{
table.PrimaryKey("PK_ShopIceCreams", x => x.Id);
table.ForeignKey(
name: "FK_ShopIceCreams_IceCreams_IceCreamId",
column: x => x.IceCreamId,
principalTable: "IceCreams",
principalColumn: "Id",
onDelete: ReferentialAction.Cascade);
table.ForeignKey(
name: "FK_ShopIceCreams_Shops_ShopId",
column: x => x.ShopId,
principalTable: "Shops",
principalColumn: "Id",
onDelete: ReferentialAction.Cascade);
});
migrationBuilder.CreateIndex(
name: "IX_ShopIceCreams_IceCreamId",
table: "ShopIceCreams",
column: "IceCreamId");
migrationBuilder.CreateIndex(
name: "IX_ShopIceCreams_ShopId",
table: "ShopIceCreams",
column: "ShopId");
}
/// <inheritdoc />
protected override void Down(MigrationBuilder migrationBuilder)
{
migrationBuilder.DropTable(
name: "ShopIceCreams");
migrationBuilder.DropTable(
name: "Shops");
}
}
}

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@ -121,6 +121,59 @@ namespace IceCreamShopDatabaseImplement.Migrations
b.ToTable("Orders");
});
modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.Shop", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("int");
SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
b.Property<string>("Address")
.IsRequired()
.HasColumnType("nvarchar(max)");
b.Property<DateTime>("DateOpening")
.HasColumnType("datetime2");
b.Property<int>("IceCreamsMaximum")
.HasColumnType("int");
b.Property<string>("ShopName")
.IsRequired()
.HasColumnType("nvarchar(max)");
b.HasKey("Id");
b.ToTable("Shops");
});
modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.ShopIceCream", b =>
{
b.Property<int>("Id")
.ValueGeneratedOnAdd()
.HasColumnType("int");
SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
b.Property<int>("Count")
.HasColumnType("int");
b.Property<int>("IceCreamId")
.HasColumnType("int");
b.Property<int>("ShopId")
.HasColumnType("int");
b.HasKey("Id");
b.HasIndex("IceCreamId");
b.HasIndex("ShopId");
b.ToTable("ShopIceCreams");
});
modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.IceCreamComponent", b =>
{
b.HasOne("IceCreamShopDatabaseImplement.Models.Component", "Component")
@ -151,6 +204,25 @@ namespace IceCreamShopDatabaseImplement.Migrations
b.Navigation("IceCream");
});
modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.ShopIceCream", b =>
{
b.HasOne("IceCreamShopDatabaseImplement.Models.IceCream", "IceCream")
.WithMany("ShopIceCreams")
.HasForeignKey("IceCreamId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
b.HasOne("IceCreamShopDatabaseImplement.Models.Shop", "Shop")
.WithMany("IceCreams")
.HasForeignKey("ShopId")
.OnDelete(DeleteBehavior.Cascade)
.IsRequired();
b.Navigation("IceCream");
b.Navigation("Shop");
});
modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.Component", b =>
{
b.Navigation("IceCreamComponents");
@ -161,6 +233,13 @@ namespace IceCreamShopDatabaseImplement.Migrations
b.Navigation("Components");
b.Navigation("Orders");
b.Navigation("ShopIceCreams");
});
modelBuilder.Entity("IceCreamShopDatabaseImplement.Models.Shop", b =>
{
b.Navigation("IceCreams");
});
#pragma warning restore 612, 618
}

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@ -38,6 +38,9 @@ namespace IceCreamShopDatabaseImplement.Models
[ForeignKey("IceCreamId")]
public virtual List<Order> Orders { get; set; } = new();
[ForeignKey("IceCreamId")]
public virtual List<ShopIceCream> ShopIceCreams { get; set; } = new();
public static IceCream Create(IceCreamShopDatabase context, IceCreamBindingModel model)
{
return new IceCream()

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@ -0,0 +1,110 @@
using IceCreamShopContracts.BindingModels;
using IceCreamShopContracts.ViewModels;
using IceCreamShopDataModels.Models;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
namespace IceCreamShopDatabaseImplement.Models
{
public class Shop : IShopModel
{
public int Id { get; set; }
[Required]
public string ShopName { get; set; } = string.Empty;
[Required]
public string Address { get; set; } = string.Empty;
[Required]
public DateTime DateOpening { get; set; }
[Required]
public int IceCreamsMaximum { get; set; }
private Dictionary<int, (IIceCreamModel, int)>? _shopIceCreams = null;
[NotMapped]
public Dictionary<int, (IIceCreamModel, int)> ShopIceCreams
{
get
{
if (_shopIceCreams == null)
{
_shopIceCreams = IceCreams
.ToDictionary(x => x.IceCreamId, x => (x.IceCream as IIceCreamModel, x.Count));
}
return _shopIceCreams;
}
}
[ForeignKey("ShopId")]
public virtual List<ShopIceCream> IceCreams { get; set; } = new();
public static Shop Create(IceCreamShopDatabase context, ShopBindingModel model)
{
return new Shop()
{
Id = model.Id,
ShopName = model.ShopName,
Address = model.Address,
DateOpening = model.DateOpening,
IceCreamsMaximum = model.IceCreamsMaximum,
IceCreams = model.ShopIceCreams.Select(x => new ShopIceCream
{
IceCream = context.IceCreams.First(y => y.Id == x.Key),
Count = x.Value.Item2
}).ToList()
};
}
public void Update(ShopBindingModel model)
{
ShopName = model.ShopName;
Address = model.Address;
DateOpening = model.DateOpening;
IceCreamsMaximum = model.IceCreamsMaximum;
}
public ShopViewModel GetViewModel => new()
{
Id = Id,
ShopName = ShopName,
Address = Address,
DateOpening = DateOpening,
IceCreamsMaximum = IceCreamsMaximum,
ShopIceCreams = ShopIceCreams
};
public void UpdateIceCreams(IceCreamShopDatabase context, ShopBindingModel model)
{
var shopIceCreams = context.ShopIceCreams.Where(rec => rec.ShopId == model.Id).ToList();
if (shopIceCreams != null && shopIceCreams.Count > 0)
{
context.ShopIceCreams.RemoveRange(shopIceCreams.Where(rec => !model.ShopIceCreams.ContainsKey(rec.IceCreamId)));
context.SaveChanges();
foreach (var updateIceCream in shopIceCreams)
{
if (model.ShopIceCreams.ContainsKey(updateIceCream.IceCreamId))
{
updateIceCream.Count = model.ShopIceCreams[updateIceCream.IceCreamId].Item2;
model.ShopIceCreams.Remove(updateIceCream.IceCreamId);
}
}
context.SaveChanges();
}
var shop = context.Shops.First(x => x.Id == Id);
foreach (var ic in model.ShopIceCreams)
{
context.ShopIceCreams.Add(new ShopIceCream
{
Shop = shop,
IceCream = context.IceCreams.First(x => x.Id == ic.Key),
Count = ic.Value.Item2
});
context.SaveChanges();
}
_shopIceCreams = null;
}
}
}

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@ -0,0 +1,22 @@
using System.ComponentModel.DataAnnotations;
namespace IceCreamShopDatabaseImplement.Models
{
public class ShopIceCream
{
public int Id { get; set; }
[Required]
public int ShopId { get; set; }
[Required]
public int IceCreamId { get; set; }
[Required]
public int Count { get; set; }
public virtual IceCream IceCream { get; set; } = new();
public virtual Shop Shop { get; set; } = new();
}
}