{"id":2930,"date":"2021-07-21T08:33:46","date_gmt":"2021-07-21T08:33:46","guid":{"rendered":"https:\/\/www.bearloga.space\/?page_id=2930"},"modified":"2021-07-21T08:33:46","modified_gmt":"2021-07-21T08:33:46","slug":"rabota-so-svyazannymi-obektami","status":"publish","type":"page","link":"https:\/\/www.bearloga.space\/uk\/rabota-so-svyazannymi-obektami\/","title":{"rendered":"\u0420\u0430\u0431\u043e\u0442\u0430 \u0441\u043e \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u043c\u0438 \u043e\u0431\u044a\u0435\u043a\u0442\u0430\u043c\u0438"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u0412 \u044d\u0442\u043e\u0439 \u0433\u043b\u0430\u0432\u0435 \u043c\u044b \u0441\u043e\u0441\u0440\u0435\u0434\u043e\u0442\u043e\u0447\u0438\u043c\u0441\u044f \u043d\u0430 \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0445 \u043e\u0431\u044a\u0435\u043a\u0442\u0430\u0445 \u0432 SQLAlchemy ORM.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0422\u0435\u043f\u0435\u0440\u044c, \u043a\u043e\u0433\u0434\u0430 \u043c\u044b \u0441\u043e\u0437\u0434\u0430\u0435\u043c \u043e\u0431\u044a\u0435\u043a\u0442 Customer, \u0431\u0443\u0434\u0435\u0442 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0430 \u200b\u200b\u043f\u0443\u0441\u0442\u0430\u044f \u043a\u043e\u043b\u043b\u0435\u043a\u0446\u0438\u044f \u0441\u0447\u0435\u0442\u043e\u0432 \u0432 \u0444\u043e\u0440\u043c\u0435 \u0441\u043f\u0438\u0441\u043a\u0430 Python.<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">c1 = Customer(name = \"Gopal Krishna\", address = \"Bank Street Hydarebad\", email = \"gk@gmail.com\")<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u0410\u0442\u0440\u0438\u0431\u0443\u0442 invoices \u0432 c1.invoices \u0431\u0443\u0434\u0435\u0442 \u043f\u0443\u0441\u0442\u044b\u043c \u0441\u043f\u0438\u0441\u043a\u043e\u043c.&nbsp;\u041c\u044b \u043c\u043e\u0436\u0435\u043c \u043d\u0430\u0437\u043d\u0430\u0447\u0438\u0442\u044c \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u044b \u0432 \u0441\u043f\u0438\u0441\u043a\u0435 \u043a\u0430\u043a \u2014<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">c1.invoices = [Invoice(invno = 10, amount = 15000), Invoice(invno = 14, amount = 3850)]<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u0414\u0430\u0432\u0430\u0439\u0442\u0435 \u043f\u0435\u0440\u0435\u0434\u0430\u0434\u0438\u043c \u044d\u0442\u043e\u0442 \u043e\u0431\u044a\u0435\u043a\u0442 \u0432 \u0431\u0430\u0437\u0443 \u0434\u0430\u043d\u043d\u044b\u0445, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u043e\u0431\u044a\u0435\u043a\u0442 Session \u0441\u043b\u0435\u0434\u0443\u044e\u0449\u0438\u043c \u043e\u0431\u0440\u0430\u0437\u043e\u043c:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">from sqlalchemy.orm import sessionmaker\nSession = sessionmaker(bind = engine)\nsession = Session()\nsession.add(c1)\nsession.commit()<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u042d\u0442\u043e \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0438 \u0441\u0433\u0435\u043d\u0435\u0440\u0438\u0440\u0443\u0435\u0442 \u0437\u0430\u043f\u0440\u043e\u0441\u044b INSERT \u0434\u043b\u044f \u0442\u0430\u0431\u043b\u0438\u0446 \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u0432 \u0438 \u0441\u0447\u0435\u0442\u043e\u0432 \u2014<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">INSERT INTO customers (name, address, email) VALUES (?, ?, ?) \n('Gopal Krishna', 'Bank Street Hydarebad', 'gk@gmail.com')\nINSERT INTO invoices (custid, invno, amount) VALUES (?, ?, ?)\n(2, 10, 15000)\nINSERT INTO invoices (custid, invno, amount) VALUES (?, ?, ?)\n(2, 14, 3850)\n<\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">\u0414\u0430\u0432\u0430\u0439\u0442\u0435 \u0442\u0435\u043f\u0435\u0440\u044c \u043f\u043e\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u043d\u0430 \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u0435 \u0442\u0430\u0431\u043b\u0438\u0446\u044b \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u0432 \u0438 \u0442\u0430\u0431\u043b\u0438\u0446\u044b \u0441\u0447\u0435\u0442\u043e\u0432 \u0432 \u0442\u0430\u0431\u043b\u0438\u0447\u043d\u043e\u043c \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0438\u0438 SQLiteStudio \u2014<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/coderlessons.com\/wp-content\/uploads\/2019\/07\/customers_table_view.jpg\" alt=\"\u0422\u0430\u0431\u043b\u0438\u0446\u0430 \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u0432\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/coderlessons.com\/wp-content\/uploads\/2019\/07\/invoices_table.jpg\" alt=\"\u0422\u0430\u0431\u043b\u0438\u0446\u0430 \u0441\u0447\u0435\u0442\u043e\u0432\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0412\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u0441\u043e\u0437\u0434\u0430\u0442\u044c \u043e\u0431\u044a\u0435\u043a\u0442 Customer, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u0438\u0432 \u0441\u043e\u043f\u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u043d\u044b\u0439 \u0430\u0442\u0440\u0438\u0431\u0443\u0442 \u0441\u0447\u0435\u0442\u043e\u0432 \u0432 \u0441\u0430\u043c\u043e\u043c \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0442\u043e\u0440\u0435, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044f \u043a\u043e\u043c\u0430\u043d\u0434\u0443 \u043d\u0438\u0436\u0435 \u2014<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">c2 = [\n   Customer(\n      name = \"Govind Pant\", \n      address = \"Gulmandi Aurangabad\",\n      email = \"gpant@gmail.com\",\n      invoices = [Invoice(invno = 3, amount = 10000), \n      Invoice(invno = 4, amount = 5000)]\n   )\n]<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u0412 \u044d\u0442\u043e\u0439 \u0433\u043b\u0430\u0432\u0435 \u043c\u044b \u0441\u043e\u0441\u0440\u0435\u0434\u043e\u0442\u043e\u0447\u0438\u043c\u0441\u044f \u043d\u0430 \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0445 \u043e\u0431\u044a\u0435\u043a\u0442\u0430\u0445 \u0432 SQLAlchemy ORM. \u0422\u0435\u043f\u0435\u0440\u044c, \u043a\u043e\u0433\u0434\u0430 \u043c\u044b \u0441\u043e\u0437\u0434\u0430\u0435\u043c \u043e\u0431\u044a\u0435\u043a\u0442 Customer, \u0431\u0443\u0434\u0435\u0442 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u0430 \u200b\u200b\u043f\u0443\u0441\u0442\u0430\u044f [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"categories":[103],"tags":[],"class_list":["post-2930","page","type-page","status-publish","hentry","category-sqlalchemy"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/pages\/2930","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/comments?post=2930"}],"version-history":[{"count":0,"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/pages\/2930\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/media?parent=2930"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/categories?post=2930"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bearloga.space\/uk\/wp-json\/wp\/v2\/tags?post=2930"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}