BookMgnt.Migrations.Initialize.Up C# (CSharp) Метод

        public override void Up()
        {
            CreateTable(
                "dbo.Books",
                c => new
                    {
                        ID = c.Int(nullable: false, identity: true),
                        Name = c.String(nullable: false, maxLength: 255),
                        CategoriesID = c.Int(nullable: false),
                        Author = c.String(nullable: false),
                        Introduce = c.String(),
                        imagePath = c.String(),
                        pubYear = c.DateTime(nullable: false),
                    })
                .PrimaryKey(t => t.ID)
                .ForeignKey("dbo.Categories", t => t.CategoriesID, cascadeDelete: true)
                .Index(t => t.CategoriesID);

            CreateTable(
                "dbo.Categories",
                c => new
                    {
                        ID = c.Int(nullable: false, identity: true),
                        Name = c.String(nullable: false),
                    })
                .PrimaryKey(t => t.ID);

            CreateTable(
                "dbo.Comments",
                c => new
                    {
                        ComID = c.Int(nullable: false, identity: true),
                        Contents = c.String(),
                        DatePost = c.DateTime(nullable: false),
                        BookID = c.Int(nullable: false),
                        UserID = c.Int(nullable: false),
                    })
                .PrimaryKey(t => t.ComID)
                .ForeignKey("dbo.Books", t => t.BookID, cascadeDelete: true)
                .ForeignKey("dbo.Users", t => t.UserID, cascadeDelete: true)
                .Index(t => t.BookID)
                .Index(t => t.UserID);

            CreateTable(
                "dbo.Users",
                c => new
                    {
                        UserID = c.Int(nullable: false, identity: true),
                        UserName = c.String(),
                        Pass = c.String(),
                        IsActive = c.Boolean(nullable: false),
                    })
                .PrimaryKey(t => t.UserID);

            CreateTable(
                "dbo.Roles",
                c => new
                    {
                        RoleID = c.Int(nullable: false, identity: true),
                        RoleName = c.String(),
                    })
                .PrimaryKey(t => t.RoleID);

            CreateTable(
                "dbo.UserRoles",
                c => new
                    {
                        UserID = c.Int(nullable: false),
                        RoleID = c.Int(nullable: false),
                    })
                .PrimaryKey(t => new { t.UserID, t.RoleID })
                .ForeignKey("dbo.Users", t => t.UserID, cascadeDelete: true)
                .ForeignKey("dbo.Roles", t => t.RoleID, cascadeDelete: true)
                .Index(t => t.UserID)
                .Index(t => t.RoleID);
        }