Diyelim ki elimizde Address<\/em> ad\u0131nda yukar\u0131daki gibi bir nesnemiz olsun ve bu nesneyi a\u015fa\u011f\u0131daki gibi Order<\/em> ve ‘Customer’ entity’lerinde kulland\u0131\u011f\u0131m\u0131z\u0131 varsayal\u0131m;<\/p>\n

\n
\r\npublic class Order\r\n{\r\n public int Id { get; set; }\r\n public required string Contents { get; set; }\r\n public required Address ShippingAddress { get; set; }\r\n public required Address BillingAddress { get; set; }\r\n public Customer Customer { get; set; } = null!;\r\n}\r\n<\/pre>\n<\/div>\n
\n
\r\npublic class Customer\r\n{\r\n public int Id { get; set; }\r\n public required string Name { get; set; }\r\n public required Address Address { get; set; }\r\n public List<Order> Orders { get; } = new();\r\n}\r\n<\/pre>\n<\/div>\n
\u015eimdi yap\u0131lan bu \u00e7al\u0131\u015fmay\u0131 Owned Types \u00f6zelli\u011fiyle yap\u0131land\u0131ral\u0131m ve devam\u0131nda a\u015fa\u011f\u0131daki sorguyu \u00e7al\u0131\u015ft\u0131r\u0131p neticeyi g\u00f6zlemleyelim;<\/p>\n
\n
\r\n protected override void OnModelCreating(ModelBuilder modelBuilder)\r\n {\r\n modelBuilder.Entity<Customer>().OwnsOne(c => c.Address);\r\n modelBuilder.Entity<Order>().OwnsOne(o => o.ShippingAddress);\r\n modelBuilder.Entity<Order>().OwnsOne(o => o.BillingAddress);\r\n }\r\n<\/pre>\n<\/div>\n
\n
\r\nCustomer customer = new()\r\n{\r\n Name = "Fezayi",\r\n Address = new()\r\n {\r\n PostalCode = "1000",\r\n City = "Yozgat",\r\n Country = "T\u00fcrkiye",\r\n State = "",\r\n Street = ""\r\n }\r\n};\r\nApplicationDbContext context = new();\r\nawait context.Customers.AddAsync(customer);\r\nawait context.SaveChangesAsync();\r\n<\/pre>\n<\/div>\n
Sonu\u00e7? Ba\u015far\u0131l\u0131, \u00f6yle de\u011fil mi! Ama benzer mant\u0131kla a\u015fa\u011f\u0131daki sorguyu \u00e7al\u0131\u015ft\u0131r\u0131rsak;<\/p>\n
\n
\r\nApplicationDbContext context = new();\r\n\r\nCustomer? customer = await context.Customers.FindAsync(2);\r\ncustomer.Orders.Add(new()\r\n{\r\n Contents = "Kuru \u00dcz\u00fcm",\r\n BillingAddress = customer.Address,\r\n ShippingAddress = customer.Address,\r\n});\r\n\r\nawait context.SaveChangesAsync();\r\n<\/pre>\n<\/div>\n
a\u015fa\u011f\u0131daki hatayla kar\u015f\u0131la\u015f\u0131r\u0131z!<\/p>\n
System.InvalidOperationException: ‘Cannot save instance of ‘Order.ShippingAddress#Address (Address)’ because it is an owned entity without any reference to its owner. Owned entities can only be saved as part of an aggregate also including the owner entity.’<\/div>\n
\n\u0130\u015fte burada g\u00f6r\u00fcld\u00fc\u011f\u00fc \u00fczere, Owned Types \u00f6zelli\u011finin yetersizli\u011fiyle kar\u015f\u0131la\u015f\u0131yoruz. \u00c7\u00fcnk\u00fc, bir entity par\u00e7as\u0131n\u0131 farkl\u0131 bir entity’de kullanmay\u0131 Owned Types \u00f6zelli\u011fiyle ger\u00e7ekle\u015ftirmeye \u00e7al\u0131\u015f\u0131rsak bu pek m\u00fcmk\u00fcn de\u011fildir!<\/p>\n
Art\u0131k bu tarz bir duruma kar\u015f\u0131n Complex Types \u00f6zelli\u011fiyle m\u00fcdahalede bulunabilmekte ve gayemizi ger\u00e7ekle\u015ftirebilmekteyiz.<\/p>\n
Bunun i\u00e7in ya model yap\u0131land\u0131rmas\u0131n\u0131 a\u015fa\u011f\u0131daki gibi Complex Type olarak \u015fekillendirmeli;<\/p>\n
\n
\r\n protected override void OnModelCreating(ModelBuilder modelBuilder)\r\n {\r\n modelBuilder.Entity<Customer>()\r\n .ComplexProperty(e => e.Address);\r\n\r\n modelBuilder.Entity<Order>(b =>\r\n {\r\n b.ComplexProperty(e => e.BillingAddress);\r\n b.ComplexProperty(e => e.ShippingAddress);\r\n });\r\n }\r\n<\/pre>\n<\/div>\n
ya da ComplexType<\/code> attribute’undan faydalanmal\u0131d\u0131r;<\/p>\n
\n\r\n[ComplexType]\r\npublic class Address\r\n{\r\n public string Street { get; set; }\r\n public string City { get; set; }\r\n public string State { get; set; }\r\n public string Country { get; set; }\r\n public string PostalCode { get; set; }\r\n}\r\n<\/pre>\n<\/div>\nB\u00f6ylece EF Core a\u00e7\u0131s\u0131ndan ciddi bir davran\u0131\u015fsal a\u00e7\u0131\u011f\u0131 kapatarak, ihtiya\u00e7 noktalar\u0131nda kullanabilmekteyiz.<\/p>\n \u0130lgilenenlerin faydalanmas\u0131 dile\u011fiyle… \nSonraki yaz\u0131lar\u0131mda g\u00f6r\u00fc\u015fmek \u00fczere… \n\u0130yi \u00e7al\u0131\u015fmalar…<\/p>\n","protected":false},"excerpt":{"rendered":" Merhaba, Bu i\u00e7eri\u011fimizde EF Core’da ki Owned Types \u00f6zelli\u011fine olduk\u00e7a benzerlik g\u00f6steren ve biz geli\u015ftiriciler a\u00e7\u0131s\u0131ndan bir entity i\u00e7erisindeki property’lerin d\u00fczenlenmesine olanak tan\u0131yan Complex Types \u00f6zelli\u011fini inceliyor olaca\u011f\u0131z. \u00d6ncelikle Owned Types \u00f6zelli\u011fini hat\u0131rlayarak ba\u015flayal\u0131m…...<\/p>\n","protected":false},"author":1,"featured_media":11538,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5094,2914],"tags":[5097,5095,5098,963,2850,5096],"class_list":["post-27126","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ef-core-8","category-entity-framework-core","tag-complex-types","tag-ef-core-8","tag-ef-core-complex-types","tag-entity-framework","tag-entity-framework-core","tag-entity-framework-core-8"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/posts\/27126","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/comments?post=27126"}],"version-history":[{"count":4,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/posts\/27126\/revisions"}],"predecessor-version":[{"id":27130,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/posts\/27126\/revisions\/27130"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/media\/11538"}],"wp:attachment":[{"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/media?parent=27126"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/categories?post=27126"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/tags?post=27126"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}