<\/div>\n

Merhaba,<\/p>\n

\u00d6nceki yaz\u0131lar\u0131mdan Node.js \u2013 MongoDB CRUD \u0130\u015flemleri<\/a> ba\u015fl\u0131kl\u0131 yaz\u0131mda MongoDB \u00fczerinde Mongoose mod\u00fcl\u00fc ile CRUD i\u015flemlerini incelerken g\u00fcncelleme i\u015flemininde nas\u0131l yap\u0131ld\u0131\u011f\u0131na de\u011finmi\u015ftik. Bu i\u00e7eri\u011fimizde ise g\u00fcncelleme esnas\u0131nda “new” operat\u00f6r\u00fcn\u00fcn kullan\u0131m\u0131na de\u011finece\u011fiz.<\/p>\n

“new” operat\u00f6r\u00fcn\u00fc izah edebilmek i\u00e7in ilk olarak hangi durumda kullan\u0131laca\u011f\u0131 daha do\u011frusu “new” operat\u00f6r\u00fcne l\u00fczum olan bir senaryoyu g\u00f6zler \u00f6n\u00fcne getirmemiz i\u00e7eri\u011fimizin mahiyetinin anla\u015f\u0131labilmesi i\u00e7in olduk\u00e7a faydal\u0131 olaca\u011f\u0131 kanaatindeyim.<\/p>\n

\r\nconst express = require("express");\r\nconst router = express.Router();\r\n\r\nconst employeeModel = require("..\/models\/employee");\r\n\r\nrouter.get("\/list", (request, response, next) => {\r\n    employeeModel.findByIdAndUpdate(1, { name: "Gen\u00e7ay"" }, (error, data) => response.json(data));\r\n});\r\n<\/pre>\nYukar\u0131daki kod blo\u011funu ele al\u0131rsak e\u011fer “1” idsine sahip verinin “name” \u00f6zelli\u011fini “Gen\u00e7ay” olarak g\u00fcncellemek istedi\u011fimizde ve bir yandan da \u00fczerinde i\u015flem yap\u0131lan veriyi elde etmeye \u00e7al\u0131\u015ft\u0131\u011f\u0131m\u0131zda a\u015fa\u011f\u0131daki gibi neticeyle kar\u015f\u0131la\u015fmaktay\u0131z.
\n<\/a>
\nDikkat ederseniz e\u011fer elde edilen veri g\u00fcncellenmi\u015f son haliyle de\u011fil g\u00fcncelleme i\u015fleminden \u00f6nce veritaban\u0131nda bulundu\u011fu haliyle gelmektedir. Dolay\u0131s\u0131yla bizler yapt\u0131\u011f\u0131m\u0131z g\u00fcncellemenin neticesini direkt olarak elde etmek istiyorsak “new” operat\u00f6r\u00fc ile bu optimizeyi ger\u00e7ekle\u015ftirebilir ve g\u00fcncellemeden sonraki veriyi elde edebiliriz.<\/p>\n
\r\nconst express = require("express");\r\nconst router = express.Router();\r\n\r\nconst employeeModel = require("..\/models\/employee");\r\n\r\nrouter.get("\/list", (request, response, next) => {\r\n    employeeModel.findByIdAndUpdate(1, { name: "Mehmet" }, { new: true }, (error, data) => response.json(data));\r\n});\r\n<\/pre>\nYukar\u0131daki kod blo\u011funu incelerseniz e\u011fer “findByIdAndUpdate” fonksiyonunun \u00fc\u00e7\u00fcnc\u00fc parametresine, “new” operat\u00f6r\u00fcne “true” de\u011feri atanm\u0131\u015f bir obje de\u011feri verirsek \u00e7al\u0131\u015fmam\u0131z a\u015fa\u011f\u0131daki gibi \u015fekillenmi\u015f olacakt\u0131r.
\n<\/a>
\nG\u00f6r\u00fcld\u00fc\u011f\u00fc \u00fczere art\u0131k g\u00fcncellenen veri direkt olarak elde edilebilmektedir.<\/p>\n
\u0130lgilenenlerin faydalanmas\u0131 dile\u011fiyle…<\/p>\n
Sonraki yaz\u0131lar\u0131mda g\u00f6r\u00fc\u015fmek \u00fczere…
\n\u0130yi \u00e7al\u0131\u015fmalar…<\/p>\n","protected":false},"excerpt":{"rendered":"
Merhaba, \u00d6nceki yaz\u0131lar\u0131mdan Node.js \u2013 MongoDB CRUD \u0130\u015flemleri ba\u015fl\u0131kl\u0131 yaz\u0131mda MongoDB \u00fczerinde Mongoose mod\u00fcl\u00fc ile CRUD i\u015flemlerini incelerken g\u00fcncelleme i\u015flemininde nas\u0131l yap\u0131ld\u0131\u011f\u0131na de\u011finmi\u015ftik. Bu i\u00e7eri\u011fimizde ise g\u00fcncelleme esnas\u0131nda “new” operat\u00f6r\u00fcn\u00fcn kullan\u0131m\u0131na de\u011finece\u011fiz. “new” operat\u00f6r\u00fcn\u00fc...<\/p>\n","protected":false},"author":1,"featured_media":8971,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2539,2145,2538],"tags":[2591,2593,2592],"class_list":["post-9194","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mongodb","category-node-js","category-nosql","tag-mongodb-new-operatoru","tag-mongoose-new-operatoru","tag-new-operatoru"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/posts\/9194","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=9194"}],"version-history":[{"count":11,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/posts\/9194\/revisions"}],"predecessor-version":[{"id":9208,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/posts\/9194\/revisions\/9208"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/media\/8971"}],"wp:attachment":[{"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/media?parent=9194"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/categories?post=9194"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gencayyildiz.com\/blog\/wp-json\/wp\/v2\/tags?post=9194"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}