{"id":18939,"date":"2025-04-22T20:16:16","date_gmt":"2025-04-22T16:46:16","guid":{"rendered":"https:\/\/rasanegaar.com\/blog\/%d8%b1%d9%88%d8%b4-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%db%8c%da%a9-%da%a9%d9%84%db%8c%d8%af-%d8%ae%d8%a7%d8%b1%d8%ac%db%8c-%d8%af%d8%b1-%d8%ac%d9%86%da%af%d9%88\/"},"modified":"2025-04-22T20:16:16","modified_gmt":"2025-04-22T16:46:16","slug":"%d8%b1%d9%88%d8%b4-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%db%8c%da%a9-%da%a9%d9%84%db%8c%d8%af-%d8%ae%d8%a7%d8%b1%d8%ac%db%8c-%d8%af%d8%b1-%d8%ac%d9%86%da%af%d9%88","status":"publish","type":"post","link":"https:\/\/rasanegaar.com\/blog\/%d8%b1%d9%88%d8%b4-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%db%8c%da%a9-%da%a9%d9%84%db%8c%d8%af-%d8%ae%d8%a7%d8%b1%d8%ac%db%8c-%d8%af%d8%b1-%d8%ac%d9%86%da%af%d9%88\/","title":{"rendered":"\u0631\u0648\u0634 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06cc\u06a9 \u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc 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href=\"https:\/\/rasanegaar.com\/blog\/%d8%b1%d9%88%d8%b4-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%db%8c%da%a9-%da%a9%d9%84%db%8c%d8%af-%d8%ae%d8%a7%d8%b1%d8%ac%db%8c-%d8%af%d8%b1-%d8%ac%d9%86%da%af%d9%88\/#%da%86%d8%b1%d8%a7_%d8%a8%d9%87_%d8%ac%d8%a7%db%8c_%d8%b0%d8%ae%db%8c%d8%b1%d9%87_%d8%b3%d8%a7%d8%b2%db%8c_%d8%b4%d9%86%d8%a7%d8%b3%d9%87_%d8%a8%d9%87_%d8%b5%d9%88%d8%b1%d8%aa_%d8%af%d8%b3%d8%aa%db%8c_%d8%8c_%d8%a7%d8%b2_%db%8c%da%a9_%da%a9%d9%84%db%8c%d8%af_%d8%ae%d8%a7%d8%b1%d8%ac%db%8c_%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87_%d9%85%db%8c_%da%a9%d9%86%db%8c%d8%af%d8%9f\" >\u0686\u0631\u0627 \u0628\u0647 \u062c\u0627\u06cc \u0630\u062e\u06cc\u0631\u0647 \u0633\u0627\u0632\u06cc \u0634\u0646\u0627\u0633\u0647 \u0628\u0647 \u0635\u0648\u0631\u062a \u062f\u0633\u062a\u06cc \u060c \u0627\u0632 \u06cc\u06a9 \u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u062f\u061f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%b1%d9%88%d8%b4-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%db%8c%da%a9-%da%a9%d9%84%db%8c%d8%af-%d8%ae%d8%a7%d8%b1%d8%ac%db%8c-%d8%af%d8%b1-%d8%ac%d9%86%da%af%d9%88\/#%d9%85%d8%ab%d8%a7%d9%84_%d8%af%d8%b1_%d8%af%d9%86%db%8c%d8%a7%db%8c_%d9%88%d8%a7%d9%82%d8%b9%db%8c_%d9%be%d8%b3%d8%aa_%d9%87%d8%a7_%d9%88_%d9%86%d8%b8%d8%b1%d8%a7%d8%aa_%d9%88%d8%a8%d9%84%d8%a7%da%af\" >\u0645\u062b\u0627\u0644 \u062f\u0631 \u062f\u0646\u06cc\u0627\u06cc \u0648\u0627\u0642\u0639\u06cc: \u067e\u0633\u062a \u0647\u0627 \u0648 \u0646\u0638\u0631\u0627\u062a \u0648\u0628\u0644\u0627\u06af<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%b1%d9%88%d8%b4-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%db%8c%da%a9-%da%a9%d9%84%db%8c%d8%af-%d8%ae%d8%a7%d8%b1%d8%ac%db%8c-%d8%af%d8%b1-%d8%ac%d9%86%da%af%d9%88\/#%da%86%db%8c%d8%b3%d8%aa_on_delete_%d9%88_%da%86%d8%b1%d8%a7_%d9%85%d9%87%d9%85_%d8%a7%d8%b3%d8%aa%d8%9f\" >\u0686\u06cc\u0633\u062a on_delete \u0648 \u0686\u0631\u0627 \u0645\u0647\u0645 \u0627\u0633\u062a\u061f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%b1%d9%88%d8%b4-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%db%8c%da%a9-%da%a9%d9%84%db%8c%d8%af-%d8%ae%d8%a7%d8%b1%d8%ac%db%8c-%d8%af%d8%b1-%d8%ac%d9%86%da%af%d9%88\/#%d8%b1%d9%88%d8%b4_%d8%af%d8%b3%d8%aa%d8%b1%d8%b3%db%8c_%d8%a8%d9%87_%d8%a7%d8%b4%db%8c%d8%a7%d8%a1_%d9%85%d8%b1%d8%aa%d8%a8%d8%b7_%d8%af%d8%b1_%d8%ac%d9%86%da%af%d9%88\" >\u0631\u0648\u0634 \u062f\u0633\u062a\u0631\u0633\u06cc \u0628\u0647 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href=\"https:\/\/rasanegaar.com\/blog\/%d8%b1%d9%88%d8%b4-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%db%8c%da%a9-%da%a9%d9%84%db%8c%d8%af-%d8%ae%d8%a7%d8%b1%d8%ac%db%8c-%d8%af%d8%b1-%d8%ac%d9%86%da%af%d9%88\/#%d8%af%d8%b1_%d9%be%d8%a7%db%8c%da%af%d8%a7%d9%87_%d8%af%d8%a7%d8%af%d9%87_%da%86%d9%87_%d8%a7%d8%aa%d9%81%d8%a7%d9%82%db%8c_%d9%85%db%8c_%d8%a7%d9%81%d8%aa%d8%af%d8%9f\" >\u062f\u0631 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0686\u0647 \u0627\u062a\u0641\u0627\u0642\u06cc \u0645\u06cc \u0627\u0641\u062a\u062f\u061f<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%b1%d9%88%d8%b4-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%db%8c%da%a9-%da%a9%d9%84%db%8c%d8%af-%d8%ae%d8%a7%d8%b1%d8%ac%db%8c-%d8%af%d8%b1-%d8%ac%d9%86%da%af%d9%88\/#%d8%b1%d9%88%d8%b4_%d9%be%d8%b1%d8%b3_%d9%88_%d8%ac%d9%88_%d8%a8%d8%a7_freetkey\" 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href=\"https:\/\/rasanegaar.com\/blog\/%d8%b1%d9%88%d8%b4-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%db%8c%da%a9-%da%a9%d9%84%db%8c%d8%af-%d8%ae%d8%a7%d8%b1%d8%ac%db%8c-%d8%af%d8%b1-%d8%ac%d9%86%da%af%d9%88\/#%d8%aa%d9%85%d8%a7%d9%85_%d9%be%d8%b3%d8%aa_%d9%87%d8%a7%db%8c%db%8c_%d8%b1%d8%a7_%da%a9%d9%87_%d8%ad%d8%af%d8%a7%d9%82%d9%84_%db%8c%da%a9_%d9%86%d8%b8%d8%b1_%d8%aa%d9%88%d8%b3%d8%b7_%db%8c%da%a9_%da%a9%d8%a7%d8%b1%d8%a8%d8%b1_%d8%ae%d8%a7%d8%b5_%d8%af%d8%a7%d8%b1%d9%86%d8%af_%d8%af%d8%b1%db%8c%d8%a7%d9%81%d8%aa_%da%a9%d9%86%db%8c%d8%af\" >\u062a\u0645\u0627\u0645 \u067e\u0633\u062a \u0647\u0627\u06cc\u06cc \u0631\u0627 \u06a9\u0647 \u062d\u062f\u0627\u0642\u0644 \u06cc\u06a9 \u0646\u0638\u0631 \u062a\u0648\u0633\u0637 \u06cc\u06a9 \u06a9\u0627\u0631\u0628\u0631 \u062e\u0627\u0635 \u062f\u0627\u0631\u0646\u062f \u062f\u0631\u06cc\u0627\u0641\u062a \u06a9\u0646\u06cc\u062f:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%b1%d9%88%d8%b4-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%db%8c%da%a9-%da%a9%d9%84%db%8c%d8%af-%d8%ae%d8%a7%d8%b1%d8%ac%db%8c-%d8%af%d8%b1-%d8%ac%d9%86%da%af%d9%88\/#%d9%85%d8%aa%d8%af%d8%a7%d9%88%d9%84\" >\u0645\u062a\u062f\u0627\u0648\u0644<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%b1%d9%88%d8%b4-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%db%8c%da%a9-%da%a9%d9%84%db%8c%d8%af-%d8%ae%d8%a7%d8%b1%d8%ac%db%8c-%d8%af%d8%b1-%d8%ac%d9%86%da%af%d9%88\/#%d8%a2%db%8c%d8%a7_%db%8c%da%a9_%da%a9%d9%84%db%8c%d8%af_%d8%ae%d8%a7%d8%b1%d8%ac%db%8c_%d9%85%db%8c_%d8%aa%d9%88%d8%a7%d9%86%d8%af_%d8%a7%d8%ae%d8%aa%db%8c%d8%a7%d8%b1%db%8c_%d8%a8%d8%a7%d8%b4%d8%af%d8%9f\" >\u0622\u06cc\u0627 \u06cc\u06a9 \u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0627\u062e\u062a\u06cc\u0627\u0631\u06cc \u0628\u0627\u0634\u062f\u061f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%b1%d9%88%d8%b4-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%db%8c%da%a9-%da%a9%d9%84%db%8c%d8%af-%d8%ae%d8%a7%d8%b1%d8%ac%db%8c-%d8%af%d8%b1-%d8%ac%d9%86%da%af%d9%88\/#%d8%a2%db%8c%d8%a7_%db%8c%da%a9_%da%a9%d9%84%db%8c%d8%af_%d8%ae%d8%a7%d8%b1%d8%ac%db%8c_%d9%85%db%8c_%d8%aa%d9%88%d8%a7%d9%86%d8%af_%d8%a8%d9%87_%d9%87%d9%85%d8%a7%d9%86_%d9%85%d8%af%d9%84_%d8%ae%d9%88%d8%af_%d8%a7%d8%b4%d8%a7%d8%b1%d9%87_%da%a9%d9%86%d8%af%d8%9f\" >\u0622\u06cc\u0627 \u06cc\u06a9 \u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0647 \u0647\u0645\u0627\u0646 \u0645\u062f\u0644 (\u062e\u0648\u062f) \u0627\u0634\u0627\u0631\u0647 \u06a9\u0646\u062f\u061f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%b1%d9%88%d8%b4-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%db%8c%da%a9-%da%a9%d9%84%db%8c%d8%af-%d8%ae%d8%a7%d8%b1%d8%ac%db%8c-%d8%af%d8%b1-%d8%ac%d9%86%da%af%d9%88\/#%d8%a2%db%8c%d8%a7_%db%8c%da%a9_%d9%85%d8%af%d9%84_%d9%85%db%8c_%d8%aa%d9%88%d8%a7%d9%86%d8%af_%d8%a8%db%8c%d8%b4_%d8%a7%d8%b2_%db%8c%da%a9_%da%a9%d9%84%db%8c%d8%af_%d8%ae%d8%a7%d8%b1%d8%ac%db%8c_%d8%af%d8%a7%d8%b4%d8%aa%d9%87_%d8%a8%d8%a7%d8%b4%d8%af%d8%9f\" >\u0622\u06cc\u0627 \u06cc\u06a9 \u0645\u062f\u0644 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u06cc\u0634 \u0627\u0632 \u06cc\u06a9 \u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f\u061f<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%b1%d9%88%d8%b4-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%db%8c%da%a9-%da%a9%d9%84%db%8c%d8%af-%d8%ae%d8%a7%d8%b1%d8%ac%db%8c-%d8%af%d8%b1-%d8%ac%d9%86%da%af%d9%88\/#%d8%a7%d9%81%da%a9%d8%a7%d8%b1_%d9%86%d9%87%d8%a7%db%8c%db%8c\" >\u0627\u0641\u06a9\u0627\u0631 \u0646\u0647\u0627\u06cc\u06cc<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/rasanegaar.com\/blog\/%d8%b1%d9%88%d8%b4-%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87-%d8%a7%d8%b2-%db%8c%da%a9-%da%a9%d9%84%db%8c%d8%af-%d8%ae%d8%a7%d8%b1%d8%ac%db%8c-%d8%af%d8%b1-%d8%ac%d9%86%da%af%d9%88\/#%d9%85%d9%86%d8%a7%d8%a8%d8%b9_%d8%a8%db%8c%d8%b4%d8%aa%d8%b1\" >\u0645\u0646\u0627\u0628\u0639 \u0628\u06cc\u0634\u062a\u0631<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u0632\u0645\u0627\u0646 \u0644\u0627\u0632\u0645 \u0628\u0631\u0627\u06cc \u0645\u0637\u0627\u0644\u0639\u0647: <\/span> <span class=\"rt-time\"> 5<\/span> <span class=\"rt-label rt-postfix\">\u062f\u0642\u06cc\u0642\u0647<\/span><\/span><p> <br \/>\n<\/p>\n<section class=\"post-content \" data-test-label=\"post-content\">\n<p>\u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u0634\u0645\u0627 \u062f\u0631 \u062d\u0627\u0644 \u0633\u0627\u062e\u062a\u0646 \u0686\u06cc\u0632\u06cc \u062f\u0631 \u062c\u0646\u06af\u0648 \u0647\u0633\u062a\u06cc\u062f-\u062e\u0648\u0627\u0647 \u0627\u06cc\u0646 \u06cc\u06a9 \u0648\u0628\u0644\u0627\u06af \u0628\u0627\u0634\u062f \u060c \u06cc\u06a9 \u0628\u0631\u0646\u0627\u0645\u0647 \u0627\u0646\u062c\u0627\u0645 \u06cc\u0627 \u062d\u062a\u06cc \u0686\u06cc\u0632\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 \u062a\u0631-\u062f\u0631 \u0628\u0639\u0636\u06cc \u0645\u0648\u0627\u0642\u0639 \u060c \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641\u06cc \u0631\u0627 \u0628\u0647 \u0647\u0645 \u0648\u0635\u0644 \u06a9\u0646\u06cc\u062f.<\/p>\n<p>\u0627\u06cc\u0646 \u062c\u0627\u06cc\u06cc \u0627\u0633\u062a \u06a9\u0647 <code>ForeignKey<\/code> \u0648\u0627\u0631\u062f \u0645\u06cc \u0634\u0648\u062f. \u0627\u06cc\u0646 \u0628\u0647 \u067e\u06cc\u0648\u0646\u062f \u06cc\u06a9 \u0645\u062f\u0644 \u0628\u0647 \u0645\u062f\u0644 \u062f\u06cc\u06af\u0631 \u06a9\u0645\u06a9 \u0645\u06cc \u06a9\u0646\u062f \u060c \u0645\u0627\u0646\u0646\u062f \u0627\u062a\u0635\u0627\u0644 \u06cc\u06a9 \u0646\u0638\u0631 \u0628\u0647 \u06cc\u06a9 \u067e\u0633\u062a \u06cc\u0627 \u0633\u0641\u0627\u0631\u0634 \u0628\u0647 \u0645\u0634\u062a\u0631\u06cc.<\/p>\n<p>\u0627\u06cc\u0646 \u06cc\u06a9\u06cc \u0627\u0632 \u0627\u06cc\u0646 \u0645\u0648\u0627\u0631\u062f \u062f\u0631 \u062c\u0646\u06af\u0648 \u0627\u0633\u062a \u06a9\u0647 \u062f\u0631 \u0627\u0628\u062a\u062f\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u06af\u06cc\u062c \u06a9\u0646\u0646\u062f\u0647 \u0628\u0647 \u0646\u0638\u0631 \u0628\u0631\u0633\u062f \u060c \u0627\u0645\u0627 \u067e\u0633 \u0627\u0632 \u06a9\u0644\u06cc\u06a9 \u060c \u062a\u0639\u062c\u0628 \u062e\u0648\u0627\u0647\u06cc\u062f \u06a9\u0631\u062f \u06a9\u0647 \u0686\u06af\u0648\u0646\u0647 \u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627\u06cc \u062e\u0648\u062f \u0631\u0627 \u0628\u062f\u0648\u0646 \u0622\u0646 \u0633\u0627\u062e\u062a\u0647 \u0627\u06cc\u062f.<\/p>\n<p>\u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0647\u0645\u0647 \u0622\u0646 \u0631\u0627 \u062e\u0631\u0627\u0628 \u06a9\u0646\u06cc\u0645. \u0645\u0646 \u0634\u0645\u0627 \u0631\u0627 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0647\u0645\u0647 \u0686\u06cc\u0632 \u0627\u0632 \u0622\u0646\u0686\u0647 \u06a9\u0647 \u06cc\u06a9 \u0641\u0631\u062f \u062e\u0627\u0631\u062c\u06cc \u0627\u0633\u062a \u060c \u062a\u0627 \u0631\u0648\u0634 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0622\u0646 \u062f\u0631 \u067e\u0631\u0648\u0698\u0647 Django \u062e\u0648\u062f \u0642\u062f\u0645 \u0645\u06cc \u0632\u0646\u0645.<\/p>\n<h2 id=\"heading-heres-what-well-cover\"><span class=\"ez-toc-section\" id=\"%d8%a7%db%8c%d9%86_%da%86%db%8c%d8%b2%db%8c_%d8%a7%d8%b3%d8%aa_%da%a9%d9%87_%d9%85%d8%a7_%d9%be%d9%88%d8%b4%d8%b4_%d8%ae%d9%88%d8%a7%d9%87%db%8c%d9%85_%d8%af%d8%a7%d8%af\"><\/span>\u0627\u06cc\u0646 \u0686\u06cc\u0632\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0645\u0627 \u067e\u0648\u0634\u0634 \u062e\u0648\u0627\u0647\u06cc\u0645 \u062f\u0627\u062f:<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>\n<p>\u0627\u06cc\u0646 \u0686\u06cc\u0632\u06cc \u0627\u0633\u062a \u06a9\u0647 \u0645\u0627 \u067e\u0648\u0634\u0634 \u062e\u0648\u0627\u0647\u06cc\u0645 \u062f\u0627\u062f:<\/p>\n<\/li>\n<li>\n<p>\u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc \u062f\u0631 \u062c\u0646\u06af\u0648 \u0686\u06cc\u0633\u062a\u061f<\/p>\n<\/li>\n<li>\n<p>\u0686\u0631\u0627 \u0628\u0647 \u062c\u0627\u06cc \u0630\u062e\u06cc\u0631\u0647 \u0633\u0627\u0632\u06cc \u0634\u0646\u0627\u0633\u0647 \u0628\u0647 \u0635\u0648\u0631\u062a \u062f\u0633\u062a\u06cc \u060c \u0627\u0632 \u06cc\u06a9 \u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u062f\u061f<\/p>\n<\/li>\n<li>\n<p>\u0645\u062b\u0627\u0644 \u062f\u0631 \u062f\u0646\u06cc\u0627\u06cc \u0648\u0627\u0642\u0639\u06cc: \u067e\u0633\u062a \u0647\u0627 \u0648 \u0646\u0638\u0631\u0627\u062a \u0648\u0628\u0644\u0627\u06af<\/p>\n<\/li>\n<li>\n<p>on_delete \u0686\u06cc\u0633\u062a \u0648 \u0686\u0631\u0627 \u0627\u0647\u0645\u06cc\u062a \u062f\u0627\u0631\u062f\u061f<\/p>\n<\/li>\n<li>\n<p>\u0631\u0648\u0634 \u062f\u0633\u062a\u0631\u0633\u06cc \u0628\u0647 \u0627\u0634\u06cc\u0627\u0621 \u0645\u0631\u062a\u0628\u0637 \u062f\u0631 \u062c\u0646\u06af\u0648<\/p>\n<\/li>\n<li>\n<p>\u0631\u0648\u0634 \u0627\u06cc\u062c\u0627\u062f \u0631\u0648\u0627\u0628\u0637 \u06a9\u0644\u06cc\u062f\u06cc \u062e\u0627\u0631\u062c\u06cc \u062f\u0631 \u0645\u062f\u06cc\u0631 Django<\/p>\n<ul>\n<li>\u062f\u0631 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0686\u0647 \u0627\u062a\u0641\u0627\u0642\u06cc \u0645\u06cc \u0627\u0641\u062a\u062f\u061f<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u0631\u0648\u0634 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0628\u0627 Freetkey<\/p>\n<ul>\n<li>\n<p>\u0647\u0645\u0647 \u0646\u0638\u0631\u0627\u062a \u0631\u0627 \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u067e\u0633\u062a \u0628\u0627 ID = 1 \u062f\u0631\u06cc\u0627\u0641\u062a \u06a9\u0646\u06cc\u062f:<\/p>\n<\/li>\n<li>\n<p>\u062a\u0645\u0627\u0645 \u067e\u0633\u062a \u0647\u0627\u06cc\u06cc \u0631\u0627 \u06a9\u0647 \u062d\u062f\u0627\u0642\u0644 \u06cc\u06a9 \u0646\u0638\u0631 \u062a\u0648\u0633\u0637 \u06cc\u06a9 \u06a9\u0627\u0631\u0628\u0631 \u062e\u0627\u0635 \u062f\u0627\u0631\u0646\u062f \u062f\u0631\u06cc\u0627\u0641\u062a \u06a9\u0646\u06cc\u062f:<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u0645\u062a\u062f\u0627\u0648\u0644<\/p>\n<ul>\n<li>\n<p>\u0622\u06cc\u0627 \u06cc\u06a9 \u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0627\u062e\u062a\u06cc\u0627\u0631\u06cc \u0628\u0627\u0634\u062f\u061f<\/p>\n<\/li>\n<li>\n<p>\u0622\u06cc\u0627 \u06cc\u06a9 \u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0647 \u0647\u0645\u0627\u0646 \u0645\u062f\u0644 (\u062e\u0648\u062f) \u0627\u0634\u0627\u0631\u0647 \u06a9\u0646\u062f\u061f<\/p>\n<\/li>\n<li>\n<p>\u0622\u06cc\u0627 \u06cc\u06a9 \u0645\u062f\u0644 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u06cc\u0634 \u0627\u0632 \u06cc\u06a9 \u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f\u061f<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p>\u0627\u0641\u06a9\u0627\u0631 \u0646\u0647\u0627\u06cc\u06cc<\/p>\n<ul>\n<li>\u0645\u0646\u0627\u0628\u0639 \u0628\u06cc\u0634\u062a\u0631<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h2 id=\"heading-what-is-a-foreign-key-in-django\"><span class=\"ez-toc-section\" id=\"%da%a9%d9%84%db%8c%d8%af_%d8%ae%d8%a7%d8%b1%d8%ac%db%8c_%d8%af%d8%b1_%d8%ac%d9%86%da%af%d9%88_%da%86%db%8c%d8%b3%d8%aa%d8%9f\"><\/span>\u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc \u062f\u0631 \u062c\u0646\u06af\u0648 \u0686\u06cc\u0633\u062a\u061f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0628\u0647 \u0633\u0627\u062f\u0647 \u062a\u0631\u06cc\u0646 \u0627\u0635\u0637\u0644\u0627\u062d \u060c \u06cc\u06a9 \u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc \u062f\u0631 \u062c\u0646\u06af\u0648 \u0628\u06cc\u0646 \u062f\u0648 \u0645\u062f\u0644 \u0631\u0627\u0628\u0637\u0647 \u0627\u06cc \u0628\u0647 \u06cc\u06a9 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u062f. \u0627\u06cc\u0646 \u0628\u062f\u0627\u0646 \u0645\u0639\u0646\u0627\u0633\u062a \u06a9\u0647 \u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0631\u062f\u06cc\u0641 \u0647\u0627 \u062f\u0631 \u06cc\u06a9 \u062c\u062f\u0648\u0644 \u0645\u06cc \u062a\u0648\u0627\u0646\u0646\u062f \u0645\u0631\u0628\u0648\u0637 \u0628\u0647 \u06cc\u06a9 \u0631\u062f\u06cc\u0641 \u0648\u0627\u062d\u062f \u062f\u0631 \u062f\u06cc\u06af\u0631\u06cc \u0628\u0627\u0634\u0646\u062f.<\/p>\n<p>\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644:<\/p>\n<ul>\n<li>\n<p>\u06cc\u06a9 \u067e\u0633\u062a \u0648\u0628\u0644\u0627\u06af \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f <strong>\u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0646\u0638\u0631\u0627\u062a<\/strong><\/p>\n<\/li>\n<li>\n<p>\u06cc\u06a9 \u0645\u0634\u062a\u0631\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f <strong>\u0628\u0633\u06cc\u0627\u0631\u06cc \u0627\u0632 \u0633\u0641\u0627\u0631\u0634\u0627\u062a<\/strong><\/p>\n<\/li>\n<li>\n<p>\u06cc\u06a9 \u0646\u0648\u06cc\u0633\u0646\u062f\u0647 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0646\u0648\u06cc\u0633\u062f <strong>\u06a9\u062a\u0627\u0628\u0647\u0627\u06cc \u0632\u06cc\u0627\u062f\u06cc<\/strong><\/p>\n<\/li>\n<\/ul>\n<p>\u0627\u06af\u0631 \u0627\u0632 \u067e\u0633 \u0632\u0645\u06cc\u0646\u0647 \u0635\u0641\u062d\u0647 \u06af\u0633\u062a\u0631\u062f\u0647 \u0645\u06cc \u0622\u06cc\u06cc\u062f \u060c \u0645\u0627\u0646\u0646\u062f \u067e\u06cc\u0648\u0646\u062f \u062f\u0648 \u0635\u0641\u062d\u0647 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06cc\u06a9 \u0633\u062a\u0648\u0646 \u0645\u0634\u062a\u0631\u06a9 \u060c \u0628\u0647 \u0622\u0646 \u0641\u06a9\u0631 \u06a9\u0646\u06cc\u062f. \u062f\u0631 \u062c\u0646\u06af\u0648 \u060c \u0627\u06cc\u0646 \u06a9\u0627\u0631 \u0631\u0627 \u062f\u0631 \u062a\u0639\u0627\u0631\u06cc\u0641 \u0645\u062f\u0644 \u062e\u0648\u062f \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc \u062f\u0647\u06cc\u062f.<\/p>\n<h2 id=\"heading-why-use-a-foreignkey-instead-of-storing-ids-manually\"><span class=\"ez-toc-section\" id=\"%da%86%d8%b1%d8%a7_%d8%a8%d9%87_%d8%ac%d8%a7%db%8c_%d8%b0%d8%ae%db%8c%d8%b1%d9%87_%d8%b3%d8%a7%d8%b2%db%8c_%d8%b4%d9%86%d8%a7%d8%b3%d9%87_%d8%a8%d9%87_%d8%b5%d9%88%d8%b1%d8%aa_%d8%af%d8%b3%d8%aa%db%8c_%d8%8c_%d8%a7%d8%b2_%db%8c%da%a9_%da%a9%d9%84%db%8c%d8%af_%d8%ae%d8%a7%d8%b1%d8%ac%db%8c_%d8%a7%d8%b3%d8%aa%d9%81%d8%a7%d8%af%d9%87_%d9%85%db%8c_%da%a9%d9%86%db%8c%d8%af%d8%9f\"><\/span>\u0686\u0631\u0627 \u0628\u0647 \u062c\u0627\u06cc \u0630\u062e\u06cc\u0631\u0647 \u0633\u0627\u0632\u06cc \u0634\u0646\u0627\u0633\u0647 \u0628\u0647 \u0635\u0648\u0631\u062a \u062f\u0633\u062a\u06cc \u060c \u0627\u0632 \u06cc\u06a9 \u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u06cc\u062f\u061f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u062a\u0639\u062c\u0628 \u06a9\u0646\u06cc\u062f \u060c &#8220;\u0686\u0631\u0627 \u0641\u0642\u0637 \u0634\u0646\u0627\u0633\u0647 \u0634\u06cc\u0621 \u0645\u0631\u062a\u0628\u0637 \u0631\u0627 \u062f\u0631 \u06cc\u06a9 \u0642\u0633\u0645\u062a \u0639\u062f\u062f \u0635\u062d\u06cc\u062d \u0633\u0627\u062f\u0647 \u0630\u062e\u06cc\u0631\u0647 \u0646\u06a9\u0646\u06cc\u062f\u061f&#8221;<\/p>\n<p>\u062e\u0648\u0628 \u060c \u0634\u0645\u0627 \u0645\u06cc \u062a\u0648\u0627\u0646\u0633\u062a\u06cc\u062f &#8211; \u0627\u0645\u0627 \u0634\u0645\u0627 \u06cc\u06a9 \u062a\u0646 \u0642\u062f\u0631\u062a \u0627\u0632 \u062f\u0633\u062a \u0645\u06cc \u062f\u0647\u06cc\u062f. \u0628\u062f\u0648\u0646 \u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc:<\/p>\n<ul>\n<li>\n<p>\u0634\u0645\u0627 \u0627\u0639\u062a\u0628\u0627\u0631 \u0633\u0646\u062c\u06cc \u062e\u0648\u062f\u06a9\u0627\u0631 \u062f\u0631\u06cc\u0627\u0641\u062a \u0646\u0645\u06cc \u06a9\u0646\u06cc\u062f \u06a9\u0647 \u0634\u06cc\u0621 \u0645\u0631\u0628\u0648\u0637\u0647 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f.<\/p>\n<\/li>\n<li>\n<p>\u0634\u0645\u0627 \u0646\u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0628\u0647 \u0631\u0627\u062d\u062a\u06cc \u062f\u0631 \u0646\u0645\u0627\u06cc\u0634 \u062f\u0627\u062f\u0647 \u0647\u0627 \u0631\u0648\u0627\u0628\u0637 \u0631\u0627 \u062f\u0646\u0628\u0627\u0644 \u06a9\u0646\u06cc\u062f (\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644 \u060c <code>post.comments.all()<\/code> \u0627\u0645\u06a9\u0627\u0646 \u067e\u0630\u06cc\u0631 \u0646\u062e\u0648\u0627\u0647\u062f \u0628\u0648\u062f)<\/p>\n<\/li>\n<li>\n<p>\u0645\u062f\u06cc\u0631 Django \u0646\u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u06a9\u0634\u0648\u06cc\u06cc \u06cc\u0627 \u0641\u0631\u0645 \u0647\u0627\u06cc \u062f\u0631\u0648\u0646 \u062e\u0637\u06cc \u0631\u0627 \u0628\u0631\u0627\u06cc \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0645\u0631\u062a\u0628\u0637 \u0627\u0631\u0627\u0626\u0647 \u062f\u0647\u062f.<\/p>\n<\/li>\n<li>\n<p>\u0634\u0645\u0627 \u0627\u0632 \u062f\u0633\u062a \u0645\u06cc \u062f\u0647\u06cc\u062f \u0631\u0648\u06cc \u0648\u06cc\u0698\u06af\u06cc \u0647\u0627\u06cc \u0645\u0641\u06cc\u062f \u0645\u0627\u0646\u0646\u062f <code>on_delete<\/code> \u0631\u0641\u062a\u0627\u0631 \u0648 \u0646\u0627\u0645\u06af\u0630\u0627\u0631\u06cc \u0634\u06cc\u0621 \u0645\u0631\u062a\u0628\u0637.<\/p>\n<\/li>\n<\/ul>\n<p>\u0632\u0645\u06cc\u0646\u0647 \u0647\u0627\u06cc \u062e\u0627\u0631\u062c\u06cc \u0627\u06cc\u0646 \u0631\u0648\u0627\u0628\u0637 \u0631\u0627 \u0628\u0647 \u0635\u0648\u0631\u062a \u062e\u0648\u062f\u06a9\u0627\u0631 \u0648 \u0627\u062c\u0631\u0627\u06cc \u0622\u0646 \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc \u062f\u0647\u0646\u062f \u0648 \u0628\u0627\u0639\u062b \u0645\u06cc \u0634\u0648\u0646\u062f \u06a9\u062f \u0634\u0645\u0627 \u062a\u0645\u06cc\u0632\u062a\u0631 \u060c \u0627\u06cc\u0645\u0646 \u062a\u0631 \u0648 \u062d\u0641\u0638 \u0622\u0646 \u0622\u0633\u0627\u0646 \u062a\u0631 \u0634\u0648\u062f.<\/p>\n<h2 id=\"heading-real-world-example-blog-posts-and-comments\"><span class=\"ez-toc-section\" id=\"%d9%85%d8%ab%d8%a7%d9%84_%d8%af%d8%b1_%d8%af%d9%86%db%8c%d8%a7%db%8c_%d9%88%d8%a7%d9%82%d8%b9%db%8c_%d9%be%d8%b3%d8%aa_%d9%87%d8%a7_%d9%88_%d9%86%d8%b8%d8%b1%d8%a7%d8%aa_%d9%88%d8%a8%d9%84%d8%a7%da%af\"><\/span>\u0645\u062b\u0627\u0644 \u062f\u0631 \u062f\u0646\u06cc\u0627\u06cc \u0648\u0627\u0642\u0639\u06cc: \u067e\u0633\u062a \u0647\u0627 \u0648 \u0646\u0638\u0631\u0627\u062a \u0648\u0628\u0644\u0627\u06af<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0628\u06cc\u0627\u06cc\u06cc\u062f \u0628\u06af\u0648\u06cc\u06cc\u0645 \u06a9\u0647 \u062f\u0631 \u062d\u0627\u0644 \u0633\u0627\u062e\u062a\u0646 \u06cc\u06a9 \u0648\u0628\u0644\u0627\u06af \u0647\u0633\u062a\u06cc\u062f. \u0627\u062d\u062a\u0645\u0627\u0644\u0627\u064b \u0634\u0645\u0627 <code>Post<\/code> \u0645\u062f\u0644 \u0648 \u0627\u0644\u0641 <code>Comment<\/code> \u0645\u062f\u0644. \u0647\u0631 \u0646\u0638\u0631 \u0628\u0627\u06cc\u062f \u0628\u0627 \u06cc\u06a9 \u067e\u0633\u062a \u062e\u0627\u0635 \u0645\u0631\u062a\u0628\u0637 \u0628\u0627\u0634\u062f.<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u0686\u06af\u0648\u0646\u0647 \u0628\u0647 \u0646\u0638\u0631 \u0645\u06cc \u0631\u0633\u062f \u062f\u0631 \u06a9\u062f:<\/p>\n<pre><code class=\"lang-python\"><span class=\"hljs-keyword\">from<\/span> django.db <span class=\"hljs-keyword\">import<\/span> models\n\n<span class=\"hljs-class\"><span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title\">Post<\/span>(<span class=\"hljs-params\">models.Model<\/span>):<\/span>\n    title = models.CharField(max_length=<span class=\"hljs-number\">200<\/span>)\n    content = models.TextField()\n    published_at = models.DateTimeField(auto_now_add=<span class=\"hljs-literal\">True<\/span>)\n\n    <span class=\"hljs-function\"><span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title\">__str__<\/span>(<span class=\"hljs-params\">self<\/span>):<\/span>\n        <span class=\"hljs-keyword\">return<\/span> self.title\n\n<span class=\"hljs-class\"><span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title\">Comment<\/span>(<span class=\"hljs-params\">models.Model<\/span>):<\/span>\n    post = models.ForeignKey(Post, on_delete=models.CASCADE)\n    author = models.CharField(max_length=<span class=\"hljs-number\">100<\/span>)\n    text = models.TextField()\n    created_at = models.DateTimeField(auto_now_add=<span class=\"hljs-literal\">True<\/span>)\n\n    <span class=\"hljs-function\"><span class=\"hljs-keyword\">def<\/span> <span class=\"hljs-title\">__str__<\/span>(<span class=\"hljs-params\">self<\/span>):<\/span>\n        <span class=\"hljs-keyword\">return<\/span> <span class=\"hljs-string\">f'Comment by <span class=\"hljs-subst\">{self.author}<\/span>'<\/span>\n<\/code><\/pre>\n<p>\u0628\u06af\u0630\u0627\u0631\u06cc\u062f \u0647\u0631 \u0642\u0633\u0645\u062a \u0627\u0632 \u0622\u0646 \u0631\u0627 \u062a\u0648\u0636\u06cc\u062d \u062f\u0647\u0645:<\/p>\n<ul>\n<li>\n<p><code>models.ForeignKey(Post, on_delete=models.CASCADE)<\/code>: \u0627\u06cc\u0646 \u062e\u0637 \u0627\u062a\u0635\u0627\u0644 \u0631\u0627 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u062f. \u0627\u06cc\u0646 \u0628\u062f\u0627\u0646 \u0645\u0639\u0646\u0627\u0633\u062a \u06a9\u0647 \u0647\u0631 \u0646\u0638\u0631 \u0628\u0647 \u06cc\u06a9 \u067e\u0633\u062a \u0645\u0631\u062a\u0628\u0637 \u0627\u0633\u062a. \u062f\u0631 <code>on_delete=models.CASCADE<\/code> \u062f\u0631 \u0635\u0648\u0631\u062a \u062d\u0630\u0641 \u06cc\u06a9 \u067e\u0633\u062a \u060c \u0642\u0633\u0645\u062a \u0628\u0647 Django \u0645\u06cc \u06af\u0648\u06cc\u062f \u06a9\u0647 \u062a\u0645\u0627\u0645 \u0646\u0638\u0631\u0627\u062a \u0645\u0631\u062a\u0628\u0637 \u0631\u0627 \u062d\u0630\u0641 \u06a9\u0646\u062f.<\/p>\n<\/li>\n<li>\n<p><code>__str__<\/code>  \u0631\u0648\u0634\u0647\u0627 \u0641\u0642\u0637 \u062e\u0648\u0627\u0646\u062f\u0646 \u0686\u06cc\u0632\u0647\u0627 \u0631\u0627 \u062f\u0631 \u0633\u0631\u067e\u0631\u0633\u062a \u06cc\u0627 \u067e\u0648\u0633\u062a\u0647 \u0622\u0633\u0627\u0646\u062a\u0631 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<\/li>\n<\/ul>\n<h2 id=\"heading-what-is-ondelete-and-why-does-it-matter\"><span class=\"ez-toc-section\" id=\"%da%86%db%8c%d8%b3%d8%aa_on_delete_%d9%88_%da%86%d8%b1%d8%a7_%d9%85%d9%87%d9%85_%d8%a7%d8%b3%d8%aa%d8%9f\"><\/span>\u0686\u06cc\u0633\u062a <code>on_delete<\/code> \u0648 \u0686\u0631\u0627 \u0645\u0647\u0645 \u0627\u0633\u062a\u061f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u0634\u0645\u0627 \u06cc\u06a9 \u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc \u0631\u0627 \u062f\u0631 \u062c\u0646\u06af\u0648 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u06cc\u062f \u060c \u0628\u0627\u06cc\u062f \u0634\u0627\u0645\u0644 \u06cc\u06a9 <code>on_delete<\/code> \u0628\u062d\u062b \u0627\u06af\u0631 \u0631\u062f\u06cc\u0641 \u0648\u0627\u0644\u062f\u06cc\u0646 (\u0645\u0627\u0646\u0646\u062f \u067e\u0633\u062a \u0648\u0628\u0644\u0627\u06af) \u062d\u0630\u0641 \u0634\u0648\u062f \u060c \u0627\u06cc\u0646 \u0627\u062a\u0641\u0627\u0642 \u0628\u0631\u0627\u06cc \u0631\u062f\u06cc\u0641 \u06a9\u0648\u062f\u06a9 (\u0645\u0627\u0646\u0646\u062f \u0646\u0638\u0631\u0627\u062a) \u0645\u06cc \u0627\u0641\u062a\u062f.<\/p>\n<p>\u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u06af\u0632\u06cc\u0646\u0647 \u0647\u0627\u06cc \u0645\u0634\u062a\u0631\u06a9 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f:<\/p>\n<ul>\n<li>\n<p><code>models.CASCADE<\/code>: \u0631\u062f\u06cc\u0641 \u0647\u0627\u06cc \u06a9\u0648\u062f\u06a9 \u0631\u0627 \u0646\u06cc\u0632 \u062d\u0630\u0641 \u06a9\u0646\u06cc\u062f (\u0645\u0627\u0646\u0646\u062f \u062d\u0630\u0641 \u0647\u0645\u0647 \u0646\u0638\u0631\u0627\u062a \u0647\u0646\u06af\u0627\u0645 \u062d\u0630\u0641 \u06cc\u06a9 \u067e\u0633\u062a).<\/p>\n<\/li>\n<li>\n<p><code>models.PROTECT<\/code>: \u062f\u0631 \u0635\u0648\u0631\u062a \u0648\u062c\u0648\u062f \u0627\u0634\u06cc\u0627\u0621 \u0645\u0631\u062a\u0628\u0637 \u060c \u0627\u0632 \u062d\u0630\u0641 \u062c\u0644\u0648\u06af\u06cc\u0631\u06cc \u06a9\u0646\u06cc\u062f.<\/p>\n<\/li>\n<li>\n<p><code>models.SET_NULL<\/code>: reperialkey \u0631\u0627 \u0631\u0648\u06cc \u0622\u0646 \u0642\u0631\u0627\u0631 \u062f\u0647\u06cc\u062f <code>NULL<\/code> \u0628\u0647 \u062c\u0627\u06cc \u062d\u0630\u0641<\/p>\n<\/li>\n<li>\n<p><code>models.SET_DEFAULT<\/code>: \u06cc\u06a9 \u0645\u0642\u062f\u0627\u0631 \u067e\u06cc\u0634 \u0641\u0631\u0636 \u0631\u0627 \u062a\u0646\u0638\u06cc\u0645 \u06a9\u0646\u06cc\u062f.<\/p>\n<\/li>\n<li>\n<p><code>models.DO_NOTHING<\/code>: \u0647\u06cc\u0686 \u06a9\u0627\u0631\u06cc \u0627\u0646\u062c\u0627\u0645 \u0646\u062f\u0647\u06cc\u062f (\u062a\u0648\u0635\u06cc\u0647 \u0646\u0645\u06cc \u0634\u0648\u062f \u0645\u06af\u0631 \u0627\u06cc\u0646\u06a9\u0647 \u0648\u0627\u0642\u0639\u0627\u064b \u0628\u062f\u0627\u0646\u06cc\u062f \u0686\u0647 \u06a9\u0627\u0631\u06cc \u0627\u0646\u062c\u0627\u0645 \u0645\u06cc \u062f\u0647\u06cc\u062f).<\/p>\n<\/li>\n<\/ul>\n<p>\u0645\u0646 \u0645\u0639\u0645\u0648\u0644\u0627\u064b \u0628\u0627 <code>CASCADE<\/code> \u0628\u0631\u0627\u06cc \u0628\u0631\u0646\u0627\u0645\u0647 \u0647\u0627\u06cc \u0633\u0627\u062f\u0647 \u060c \u0627\u0645\u0627 \u0627\u0631\u0632\u0634 \u0622\u0646 \u0631\u0627 \u062f\u0627\u0631\u062f \u06a9\u0647 \u0627\u0632 \u0637\u0631\u06cc\u0642 \u0622\u0646 \u0641\u06a9\u0631 \u06a9\u0646\u06cc\u062f \u0631\u0648\u06cc \u0648\u0636\u0639\u06cc\u062a<\/p>\n<h2 id=\"heading-how-to-access-related-objects-in-django\"><span class=\"ez-toc-section\" id=\"%d8%b1%d9%88%d8%b4_%d8%af%d8%b3%d8%aa%d8%b1%d8%b3%db%8c_%d8%a8%d9%87_%d8%a7%d8%b4%db%8c%d8%a7%d8%a1_%d9%85%d8%b1%d8%aa%d8%a8%d8%b7_%d8%af%d8%b1_%d8%ac%d9%86%da%af%d9%88\"><\/span>\u0631\u0648\u0634 \u062f\u0633\u062a\u0631\u0633\u06cc \u0628\u0647 \u0627\u0634\u06cc\u0627\u0621 \u0645\u0631\u062a\u0628\u0637 \u062f\u0631 \u062c\u0646\u06af\u0648<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u067e\u0633 \u0627\u0632 \u0631\u0627\u0647 \u0627\u0646\u062f\u0627\u0632\u06cc FreatireKey \u060c Django \u0686\u0646\u062f \u0627\u0628\u0632\u0627\u0631 \u062e\u0648\u0628 \u0628\u0631\u0627\u06cc \u06a9\u0627\u0631 \u0628\u0627 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0645\u0631\u062a\u0628\u0637 \u0628\u0647 \u0634\u0645\u0627 \u0645\u06cc \u062f\u0647\u062f.<\/p>\n<p>\u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644 \u060c \u0628\u06cc\u0627\u06cc\u06cc\u062f \u0628\u06af\u0648\u06cc\u06cc\u0645 \u06a9\u0647 \u0634\u0645\u0627 \u06cc\u06a9 \u0634\u06cc\u0621 \u067e\u0633\u062a \u062f\u0627\u0631\u06cc\u062f:<\/p>\n<pre><code class=\"lang-python\">post = Post.objects.get(id=<span class=\"hljs-number\">1<\/span>)\n<\/code><\/pre>\n<p>\u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0645\u0627\u0646\u0646\u062f \u0627\u06cc\u0646 \u0647\u0645\u0647 \u0646\u0638\u0631\u0627\u062a \u0631\u0627 \u0628\u0631\u0627\u06cc \u0622\u0646 \u067e\u0633\u062a \u062f\u0631\u06cc\u0627\u0641\u062a \u06a9\u0646\u06cc\u062f:<\/p>\n<pre><code class=\"lang-python\">comments = post.comment_set.all()\n<\/code><\/pre>\n<p>\u062f\u0631 <code>comment_set<\/code> \u0628\u0647 \u0637\u0648\u0631 \u062e\u0648\u062f\u06a9\u0627\u0631 \u062a\u0648\u0633\u0637 Django \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u0634\u0648\u062f \u060c \u0648 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0646\u0627\u0645 \u0631\u0627 \u0628\u0627 \u0622\u0646 \u0633\u0641\u0627\u0631\u0634\u06cc \u06a9\u0646\u06cc\u062f <code>related_name<\/code>:<\/p>\n<pre><code class=\"lang-python\"><span class=\"hljs-class\"><span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title\">Comment<\/span>(<span class=\"hljs-params\">models.Model<\/span>):<\/span>\n    post = models.ForeignKey(Post, on_delete=models.CASCADE, related_name=<span class=\"hljs-string\">'comments'<\/span>)\n<\/code><\/pre>\n<p>\u0627\u06a9\u0646\u0648\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0627\u0646\u062c\u0627\u0645 \u062f\u0647\u06cc\u062f:<\/p>\n<pre><code class=\"lang-python\">post.comments.all()\n<\/code><\/pre>\n<p>\u062e\u06cc\u0644\u06cc \u062a\u0645\u06cc\u0632\u062a\u0631 \u060c \u062f\u0631\u0633\u062a \u0627\u0633\u062a\u061f<\/p>\n<h2 id=\"heading-how-to-create-foreign-key-relationships-in-django-admin\"><span class=\"ez-toc-section\" id=\"%d8%b1%d9%88%d8%b4_%d8%a7%db%8c%d8%ac%d8%a7%d8%af_%d8%b1%d9%88%d8%a7%d8%a8%d8%b7_%da%a9%d9%84%db%8c%d8%af%db%8c_%d8%ae%d8%a7%d8%b1%d8%ac%db%8c_%d8%af%d8%b1_%d9%85%d8%af%db%8c%d8%b1_django\"><\/span>\u0631\u0648\u0634 \u0627\u06cc\u062c\u0627\u062f \u0631\u0648\u0627\u0628\u0637 \u06a9\u0644\u06cc\u062f\u06cc \u062e\u0627\u0631\u062c\u06cc \u062f\u0631 \u0645\u062f\u06cc\u0631 Django<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0645\u062f\u06cc\u0631 Django \u0628\u0647 \u062e\u0648\u0628\u06cc \u0627\u0632 \u0627\u0641\u0631\u0627\u062f \u062e\u0627\u0631\u062c\u06cc \u0628\u0631\u062e\u0648\u0631\u062f \u0645\u06cc \u06a9\u0646\u062f. \u0627\u06af\u0631 \u0647\u0631 \u062f\u0648 \u0631\u0627 \u062f\u0627\u0631\u06cc\u062f <code>Post<\/code> \u0648\u062a <code>Comment<\/code> \u0645\u062f\u0644\u0647\u0627\u06cc \u062b\u0628\u062a \u0634\u062f\u0647 \u062f\u0631 <code>admin.py<\/code>\u0628\u0631\u0627\u06cc \u0627\u0646\u062a\u062e\u0627\u0628 \u067e\u0633\u062a\u06cc \u06a9\u0647 \u0645\u062a\u0639\u0644\u0642 \u0628\u0647 \u0622\u0646 \u0627\u0633\u062a \u060c \u062f\u0631 \u0641\u0631\u0645 \u0646\u0638\u0631 \u06cc\u06a9 \u06a9\u0634\u0648\u06cc\u06cc \u062f\u0631\u06cc\u0627\u0641\u062a \u062e\u0648\u0627\u0647\u06cc\u062f \u06a9\u0631\u062f.<\/p>\n<p>\u0647\u0645\u0686\u0646\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0641\u0631\u0645 \u0647\u0627\u06cc \u062f\u0631\u0648\u0646 \u062e\u0637\u06cc \u0628\u0633\u0627\u0632\u06cc\u062f \u060c \u0628\u0646\u0627\u0628\u0631\u0627\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0647\u0646\u06af\u0627\u0645 \u0648\u06cc\u0631\u0627\u06cc\u0634 \u06cc\u06a9 \u067e\u0633\u062a \u060c \u0646\u0638\u0631\u0627\u062a \u0631\u0627 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u062f. \u062f\u0631 \u0627\u06cc\u0646\u062c\u0627 \u06cc\u06a9 \u0645\u062b\u0627\u0644 \u0633\u0631\u06cc\u0639 \u0648\u062c\u0648\u062f \u062f\u0627\u0631\u062f:<\/p>\n<pre><code class=\"lang-python\"><span class=\"hljs-keyword\">from<\/span> django.contrib <span class=\"hljs-keyword\">import<\/span> admin\n<span class=\"hljs-keyword\">from<\/span> .models <span class=\"hljs-keyword\">import<\/span> Post, Comment\n\n<span class=\"hljs-class\"><span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title\">CommentInline<\/span>(<span class=\"hljs-params\">admin.TabularInline<\/span>):<\/span>\n    model = Comment\n    extra = <span class=\"hljs-number\">1<\/span>\n\n<span class=\"hljs-class\"><span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title\">PostAdmin<\/span>(<span class=\"hljs-params\">admin.ModelAdmin<\/span>):<\/span>\n    inlines = [CommentInline]\n\nadmin.site.register(Post, PostAdmin)\nadmin.site.register(Comment)\n<\/code><\/pre>\n<p>\u0627\u06a9\u0646\u0648\u0646 \u0648\u0642\u062a\u06cc \u062f\u0631 \u062d\u0627\u0644 \u0648\u06cc\u0631\u0627\u06cc\u0634 \u06cc\u06a9 \u067e\u0633\u062a \u0647\u0633\u062a\u06cc\u062f \u060c \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0646\u0638\u0631\u0627\u062a \u0631\u0627 \u062f\u0631 \u0622\u0646\u062c\u0627 \u0627\u0636\u0627\u0641\u0647 \u06cc\u0627 \u0648\u06cc\u0631\u0627\u06cc\u0634 \u06a9\u0646\u06cc\u062f \u0631\u0648\u06cc \u06cc\u06a9\u0633\u0627\u0646 page\u0628\u0634\u0631<\/p>\n<h3 id=\"heading-what-happens-in-the-database\"><span class=\"ez-toc-section\" id=\"%d8%af%d8%b1_%d9%be%d8%a7%db%8c%da%af%d8%a7%d9%87_%d8%af%d8%a7%d8%af%d9%87_%da%86%d9%87_%d8%a7%d8%aa%d9%81%d8%a7%d9%82%db%8c_%d9%85%db%8c_%d8%a7%d9%81%d8%aa%d8%af%d8%9f\"><\/span>\u062f\u0631 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0686\u0647 \u0627\u062a\u0641\u0627\u0642\u06cc \u0645\u06cc \u0627\u0641\u062a\u062f\u061f<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Django \u0627\u0632 \u06cc\u06a9 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0631\u0627\u0628\u0637\u0647 \u0627\u06cc (\u0645\u0627\u0646\u0646\u062f PostgresQL \u060c MySQL \u06cc\u0627 SQLite) \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u06a9\u0646\u062f \u0648 ExternateKey \u0633\u062a\u0648\u0646\u06cc \u0631\u0627 \u062f\u0631 \u062c\u062f\u0648\u0644 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u062f \u06a9\u0647 \u062f\u0627\u0631\u0627\u06cc \u0634\u0646\u0627\u0633\u0647 \u0634\u06cc\u0621 \u0645\u0631\u062a\u0628\u0637 \u0627\u0633\u062a.<\/p>\n<p>\u0627\u06af\u0631 \u062f\u0648\u06cc\u062f\u06cc\u062f <code>python manage.py makemigrations<\/code> \u0648 \u0628\u0639\u062f <code>python manage.py migrate<\/code>\u060c Django \u062c\u062f\u0627\u0648\u0644 \u067e\u0627\u06cc\u06af\u0627\u0647 \u062f\u0627\u062f\u0647 \u0648\u0627\u0642\u0639\u06cc \u0631\u0627 \u0628\u0627 \u0631\u0648\u0627\u0628\u0637 \u0645\u0646\u0627\u0633\u0628 \u062f\u0631 \u067e\u0634\u062a \u0635\u062d\u0646\u0647 \u0627\u06cc\u062c\u0627\u062f \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<h2 id=\"heading-how-to-query-with-foreignkey\"><span class=\"ez-toc-section\" id=\"%d8%b1%d9%88%d8%b4_%d9%be%d8%b1%d8%b3_%d9%88_%d8%ac%d9%88_%d8%a8%d8%a7_freetkey\"><\/span>\u0631\u0648\u0634 \u067e\u0631\u0633 \u0648 \u062c\u0648 \u0628\u0627 Freetkey<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0647\u0645\u0686\u0646\u06cc\u0646 \u0645\u06cc \u062a\u0648\u0627\u0646\u06cc\u062f \u0645\u0628\u062a\u0646\u06cc \u0628\u0631 \u0641\u06cc\u0644\u062a\u0631 \u06cc\u0627 \u062c\u0633\u062a\u062c\u0648 \u06a9\u0646\u06cc\u062f \u0631\u0648\u06cc \u0631\u0648\u0627\u0628\u0637 \u062e\u0627\u0631\u062c\u06cc:<\/p>\n<h3 id=\"heading-get-all-comments-for-a-post-with-id1\"><span class=\"ez-toc-section\" id=\"%d9%87%d9%85%d9%87_%d9%86%d8%b8%d8%b1%d8%a7%d8%aa_%d8%b1%d8%a7_%d8%a8%d8%b1%d8%a7%db%8c_%db%8c%da%a9_%d9%be%d8%b3%d8%aa_%d8%a8%d8%a7_id_1_%d8%af%d8%b1%db%8c%d8%a7%d9%81%d8%aa_%da%a9%d9%86%db%8c%d8%af\"><\/span>\u0647\u0645\u0647 \u0646\u0638\u0631\u0627\u062a \u0631\u0627 \u0628\u0631\u0627\u06cc \u06cc\u06a9 \u067e\u0633\u062a \u0628\u0627 ID = 1 \u062f\u0631\u06cc\u0627\u0641\u062a \u06a9\u0646\u06cc\u062f:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<pre><code class=\"lang-python\">Comment.objects.filter(post_id=<span class=\"hljs-number\">1<\/span>)\n<\/code><\/pre>\n<p>\u06cc\u0627 \u0628\u0627 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u0634\u06cc\u0621 \u067e\u0633\u062a:<\/p>\n<pre><code class=\"lang-python\">post = Post.objects.get(id=<span class=\"hljs-number\">1<\/span>)\ncomments = Comment.objects.filter(post=post)\n<\/code><\/pre>\n<h3 id=\"heading-get-all-posts-that-have-at-least-one-comment-by-a-specific-user\"><span class=\"ez-toc-section\" id=\"%d8%aa%d9%85%d8%a7%d9%85_%d9%be%d8%b3%d8%aa_%d9%87%d8%a7%db%8c%db%8c_%d8%b1%d8%a7_%da%a9%d9%87_%d8%ad%d8%af%d8%a7%d9%82%d9%84_%db%8c%da%a9_%d9%86%d8%b8%d8%b1_%d8%aa%d9%88%d8%b3%d8%b7_%db%8c%da%a9_%da%a9%d8%a7%d8%b1%d8%a8%d8%b1_%d8%ae%d8%a7%d8%b5_%d8%af%d8%a7%d8%b1%d9%86%d8%af_%d8%af%d8%b1%db%8c%d8%a7%d9%81%d8%aa_%da%a9%d9%86%db%8c%d8%af\"><\/span>\u062a\u0645\u0627\u0645 \u067e\u0633\u062a \u0647\u0627\u06cc\u06cc \u0631\u0627 \u06a9\u0647 \u062d\u062f\u0627\u0642\u0644 \u06cc\u06a9 \u0646\u0638\u0631 \u062a\u0648\u0633\u0637 \u06cc\u06a9 \u06a9\u0627\u0631\u0628\u0631 \u062e\u0627\u0635 \u062f\u0627\u0631\u0646\u062f \u062f\u0631\u06cc\u0627\u0641\u062a \u06a9\u0646\u06cc\u062f:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<pre><code class=\"lang-python\">Post.objects.filter(comments__author=<span class=\"hljs-string\">'John'<\/span>)\n<\/code><\/pre>\n<p>\u0627\u06cc\u0646 \u06a9\u0647 <code>comments__author<\/code> \u0642\u0633\u0645\u062a \u0628\u0647 \u0644\u0637\u0641 <code>related_name=\"comments\"<\/code> \u0645\u0646 \u0632\u0648\u062f\u062a\u0631 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0631\u062f\u0645<\/p>\n<h2 id=\"heading-faqs\"><span class=\"ez-toc-section\" id=\"%d9%85%d8%aa%d8%af%d8%a7%d9%88%d9%84\"><\/span>\u0645\u062a\u062f\u0627\u0648\u0644<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 id=\"heading-can-a-foreignkey-be-optional\"><span class=\"ez-toc-section\" id=\"%d8%a2%db%8c%d8%a7_%db%8c%da%a9_%da%a9%d9%84%db%8c%d8%af_%d8%ae%d8%a7%d8%b1%d8%ac%db%8c_%d9%85%db%8c_%d8%aa%d9%88%d8%a7%d9%86%d8%af_%d8%a7%d8%ae%d8%aa%db%8c%d8%a7%d8%b1%db%8c_%d8%a8%d8%a7%d8%b4%d8%af%d8%9f\"><\/span><strong>\u0622\u06cc\u0627 \u06cc\u06a9 \u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0627\u062e\u062a\u06cc\u0627\u0631\u06cc \u0628\u0627\u0634\u062f\u061f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u0628\u0644\u0647 \u060c \u0641\u0642\u0637 \u0627\u0636\u0627\u0641\u0647 \u06a9\u0646\u06cc\u062f <code>null=True, blank=True<\/code> \u0645\u062b\u0644 \u0627\u06cc\u0646:<\/p>\n<pre><code class=\"lang-python\">post = models.ForeignKey(Post, on_delete=models.SET_NULL, null=<span class=\"hljs-literal\">True<\/span>, blank=<span class=\"hljs-literal\">True<\/span>)\n<\/code><\/pre>\n<p>\u0627\u06af\u0631 \u0647\u0645\u06cc\u0634\u0647 \u0634\u06cc\u0621 \u0645\u0631\u062a\u0628\u0637 \u0644\u0627\u0632\u0645 \u0646\u0628\u0627\u0634\u062f \u060c \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0627\u06cc\u0646 \u0631\u0627 \u0628\u062e\u0648\u0627\u0647\u06cc\u062f. \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644 \u060c \u0627\u0644\u0641 <code>Comment<\/code> \u0642\u062f\u0631\u062a <em>\u062f\u0631 \u0635\u0648\u0631\u062a \u0627\u062e\u062a\u06cc\u0627\u0631\u06cc<\/em> \u0645\u062a\u0639\u0644\u0642 \u0628\u0647 \u06cc\u06a9 <code>Post<\/code>\u060c \u06cc\u0627 \u0627\u0644\u0641 <code>Task<\/code> \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0628\u0647 \u0635\u0648\u0631\u062a \u0627\u062e\u062a\u06cc\u0627\u0631\u06cc \u062f\u0627\u0631\u0627\u06cc \u06cc\u06a9 \u0645\u0631\u062a\u0628\u0637 \u0628\u0627\u0634\u062f <code>Project<\/code>\u0628\u0634\u0631 \u0647\u0646\u06af\u0627\u0645 \u0633\u0627\u062e\u062a\u0646 \u067e\u06cc\u0634 \u0646\u0648\u06cc\u0633 \u060c \u062d\u0630\u0641 \u0646\u0631\u0645 \u06cc\u0627 \u0631\u0633\u06cc\u062f\u06af\u06cc \u0628\u0647 \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0645\u06cc\u0631\u0627\u062b \u0645\u0641\u06cc\u062f \u0627\u0633\u062a.<\/p>\n<h3 id=\"heading-can-a-foreignkey-point-to-the-same-model-self\"><span class=\"ez-toc-section\" id=\"%d8%a2%db%8c%d8%a7_%db%8c%da%a9_%da%a9%d9%84%db%8c%d8%af_%d8%ae%d8%a7%d8%b1%d8%ac%db%8c_%d9%85%db%8c_%d8%aa%d9%88%d8%a7%d9%86%d8%af_%d8%a8%d9%87_%d9%87%d9%85%d8%a7%d9%86_%d9%85%d8%af%d9%84_%d8%ae%d9%88%d8%af_%d8%a7%d8%b4%d8%a7%d8%b1%d9%87_%da%a9%d9%86%d8%af%d8%9f\"><\/span><strong>\u0622\u06cc\u0627 \u06cc\u06a9 \u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u0647 \u0647\u0645\u0627\u0646 \u0645\u062f\u0644 (\u062e\u0648\u062f) \u0627\u0634\u0627\u0631\u0647 \u06a9\u0646\u062f\u061f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u06a9\u0627\u0645\u0644\u0627 \u0628\u0647 \u0622\u0646 \u06cc\u06a9 \u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc \u062e\u0648\u062f \u0627\u0631\u062c\u0627\u0639\u06cc \u06af\u0641\u062a\u0647 \u0645\u06cc \u0634\u0648\u062f \u060c \u06a9\u0647 \u0627\u063a\u0644\u0628 \u0628\u0631\u0627\u06cc \u0645\u0648\u0627\u0631\u062f\u06cc \u0645\u0627\u0646\u0646\u062f \u0646\u0638\u0631\u0627\u062a \u06cc\u0627 \u062f\u0633\u062a\u0647 \u0628\u0646\u062f\u06cc \u0647\u0627\u06cc \u0645\u0648\u0636\u0648\u0639\u06cc \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0645\u06cc \u0634\u0648\u062f.<\/p>\n<pre><code class=\"lang-python\"><span class=\"hljs-class\"><span class=\"hljs-keyword\">class<\/span> <span class=\"hljs-title\">Category<\/span>(<span class=\"hljs-params\">models.Model<\/span>):<\/span>\n    name = models.CharField(max_length=<span class=\"hljs-number\">100<\/span>)\n    parent = models.ForeignKey(<span class=\"hljs-string\">'self'<\/span>, null=<span class=\"hljs-literal\">True<\/span>, blank=<span class=\"hljs-literal\">True<\/span>, on_delete=models.SET_NULL)\n<\/code><\/pre>\n<h3 id=\"heading-can-a-model-have-more-than-one-foreignkey\"><span class=\"ez-toc-section\" id=\"%d8%a2%db%8c%d8%a7_%db%8c%da%a9_%d9%85%d8%af%d9%84_%d9%85%db%8c_%d8%aa%d9%88%d8%a7%d9%86%d8%af_%d8%a8%db%8c%d8%b4_%d8%a7%d8%b2_%db%8c%da%a9_%da%a9%d9%84%db%8c%d8%af_%d8%ae%d8%a7%d8%b1%d8%ac%db%8c_%d8%af%d8%a7%d8%b4%d8%aa%d9%87_%d8%a8%d8%a7%d8%b4%d8%af%d8%9f\"><\/span><strong>\u0622\u06cc\u0627 \u06cc\u06a9 \u0645\u062f\u0644 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u0628\u06cc\u0634 \u0627\u0632 \u06cc\u06a9 \u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc \u062f\u0627\u0634\u062a\u0647 \u0628\u0627\u0634\u062f\u061f<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u06a9\u0627\u0645\u0644\u0627. \u0628\u0647 \u0639\u0646\u0648\u0627\u0646 \u0645\u062b\u0627\u0644 \u060c \u06cc\u06a9 \u0645\u062f\u0644 \u0633\u0641\u0627\u0631\u0634 \u0645\u06cc \u062a\u0648\u0627\u0646\u062f \u06cc\u06a9 \u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc \u0631\u0627 \u0628\u0631\u0627\u06cc \u0645\u0634\u062a\u0631\u06cc \u0648 \u062f\u06cc\u06af\u0631\u06cc \u0628\u0647 \u062d\u0645\u0644 \u0648 \u0646\u0642\u0644 \u0627\u0631\u0633\u0627\u0644 \u06a9\u0646\u062f.<\/p>\n<h2 id=\"heading-final-thoughts\"><span class=\"ez-toc-section\" id=\"%d8%a7%d9%81%da%a9%d8%a7%d8%b1_%d9%86%d9%87%d8%a7%db%8c%db%8c\"><\/span>\u0627\u0641\u06a9\u0627\u0631 \u0646\u0647\u0627\u06cc\u06cc<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u0627\u06af\u0631 \u062f\u0631 \u062c\u0646\u06af\u0648 \u062f\u0631 \u062d\u0627\u0644 \u0633\u0627\u062e\u062a\u0646 \u0647\u0631 \u0686\u06cc\u0632\u06cc \u0647\u0633\u062a\u06cc\u062f \u06a9\u0647 \u0628\u06cc\u0634 \u0627\u0632 \u06cc\u06a9 \u0645\u062f\u0644 \u0631\u0627 \u0633\u0631\u0648\u06a9\u0627\u0631 \u062f\u0627\u0631\u062f \u060c \u062f\u0631\u06a9 UneferneyKey \u0636\u0631\u0648\u0631\u06cc \u0627\u0633\u062a. \u0627\u06cc\u0646 \u0628\u0631\u0646\u0627\u0645\u0647 \u0634\u0645\u0627 \u0631\u0627 \u0633\u0627\u062e\u062a\u0627\u0631 \u06cc\u0627\u0641\u062a\u0647 \u062a\u0631 \u060c \u067e\u0631\u0633 \u0648 \u062c\u0648 \u062a\u0631 \u0648 \u0642\u062f\u0631\u062a\u0645\u0646\u062f\u062a\u0631 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p>\u062f\u0631 \u0627\u0628\u062a\u062f\u0627 \u060c \u0645\u0645\u06a9\u0646 \u0627\u0633\u062a \u0627\u062d\u0633\u0627\u0633 \u0632\u06cc\u0627\u062f\u06cc \u06a9\u0646\u062f \u060c \u0627\u0645\u0627 \u067e\u0633 \u0627\u0632 \u0627\u06cc\u062c\u0627\u062f \u06cc\u06a9 \u06cc\u0627 \u062f\u0648 \u0631\u0627\u0628\u0637\u0647 \u0648 \u062f\u06cc\u062f\u0646 \u0647\u0645\u0647 \u0622\u0646 \u062f\u0631 \u0645\u062f\u06cc\u0631 \u0648 \u0646\u0645\u0627\u0647\u0627\u06cc \u062e\u0648\u062f \u060c \u06a9\u0644\u06cc\u06a9 \u0645\u06cc \u06a9\u0646\u062f.<\/p>\n<p>\u0648 \u0627\u06af\u0631 \u0686\u06cc\u0632\u06cc \u0647\u0646\u0648\u0632 \u0645\u0634\u062e\u0635 \u0646\u06cc\u0633\u062a \u060c \u0637\u0628\u06cc\u0639\u06cc \u0627\u0633\u062a. \u0645\u0646 \u0642\u0628\u0644 \u0627\u0632 \u0634\u0631\u0648\u0639 \u0627\u062d\u0633\u0627\u0633 \u0637\u0628\u06cc\u0639\u06cc \u0645\u062c\u0628\u0648\u0631 \u0634\u062f\u0645 \u0686\u0646\u062f \u0645\u06cc\u0646\u06cc \u067e\u0631\u0648\u0698\u0647 \u0628\u0633\u0627\u0632\u0645.<\/p>\n<h3 id=\"heading-further-resources\"><span class=\"ez-toc-section\" id=\"%d9%85%d9%86%d8%a7%d8%a8%d8%b9_%d8%a8%db%8c%d8%b4%d8%aa%d8%b1\"><\/span>\u0645\u0646\u0627\u0628\u0639 \u0628\u06cc\u0634\u062a\u0631<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>\n<p>\u0627\u0633\u0646\u0627\u062f Django \u0631\u0648\u06cc \u0634\u062e\u0635 \u062e\u0627\u0631\u062c\u06cc<\/p>\n<\/li>\n<li>\n<p>\u0645\u0631\u062c\u0639 \u0645\u06cc\u062f\u0627\u0646\u06cc \u0645\u062f\u0644 Django<\/p>\n<\/li>\n<li>\n<p>\u0646\u0648\u0634\u062a\u0646 \u0645\u062f\u0644 \u0647\u0627 \u062f\u0631 \u062c\u0646\u06af\u0648<\/p>\n<\/li>\n<li>\n<p>\u0627\u0633\u0646\u0627\u062f \u0645\u062f\u06cc\u0631 Django<\/p>\n<\/li>\n<\/ul>\n<\/section>\n<p><br \/>\n<br \/>\u0645\u0646\u062a\u0634\u0631 \u0634\u062f\u0647 \u062f\u0631 1404-04-22 20:16:11<br \/>\n<\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-center kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;center&quot;,&quot;id&quot;:&quot;18939&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;0&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;0&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;\u0627\u0645\u062a\u06cc\u0627\u0632 \u0634\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628&quot;,&quot;legend&quot;:&quot;0\\\/5 (0 \u0631\u0627\u06cc)&quot;,&quot;size&quot;:&quot;30&quot;,&quot;title&quot;:&quot;\u0631\u0648\u0634 \u0627\u0633\u062a\u0641\u0627\u062f\u0647 \u0627\u0632 \u06cc\u06a9 \u06a9\u0644\u06cc\u062f \u062e\u0627\u0631\u062c\u06cc \u062f\u0631 \u062c\u0646\u06af\u0648&quot;,&quot;width&quot;:&quot;0&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} ({count} \u0631\u0627\u06cc)&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 0px;\">\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-left: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 30px; height: 30px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 24px;\">\n            <span class=\"kksr-muted\">\u0627\u0645\u062a\u06cc\u0627\u0632 \u0634\u0645\u0627 \u0628\u0647 \u0627\u06cc\u0646 \u0645\u0637\u0644\u0628<\/span>\n    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">\u0632\u0645\u0627\u0646 \u0644\u0627\u0632\u0645 \u0628\u0631\u0627\u06cc \u0645\u0637\u0627\u0644\u0639\u0647: <\/span> <span class=\"rt-time\"> 5<\/span> <span class=\"rt-label rt-postfix\">\u062f\u0642\u06cc\u0642\u0647<\/span><\/span>\u0647\u0646\u06af\u0627\u0645\u06cc \u06a9\u0647 \u0634\u0645\u0627 \u062f\u0631 \u062d\u0627\u0644 \u0633\u0627\u062e\u062a\u0646 \u0686\u06cc\u0632\u06cc \u062f\u0631 \u062c\u0646\u06af\u0648 \u0647\u0633\u062a\u06cc\u062f-\u062e\u0648\u0627\u0647 \u0627\u06cc\u0646 \u06cc\u06a9 \u0648\u0628\u0644\u0627\u06af \u0628\u0627\u0634\u062f \u060c \u06cc\u06a9 \u0628\u0631\u0646\u0627\u0645\u0647 \u0627\u0646\u062c\u0627\u0645 \u06cc\u0627 \u062d\u062a\u06cc \u0686\u06cc\u0632\u06cc \u067e\u06cc\u0686\u06cc\u062f\u0647 \u062a\u0631-\u062f\u0631 \u0628\u0639\u0636\u06cc \u0645\u0648\u0627\u0642\u0639 \u060c \u0645\u06cc \u062e\u0648\u0627\u0647\u06cc\u062f \u062f\u0627\u062f\u0647 \u0647\u0627\u06cc \u0645\u062e\u062a\u0644\u0641\u06cc \u0631\u0627 \u0628\u0647 \u0647\u0645 \u0648\u0635\u0644 \u06a9\u0646\u06cc\u062f. \u0627\u06cc\u0646 \u062c\u0627\u06cc\u06cc \u0627\u0633\u062a \u06a9\u0647 ForeignKey \u0648\u0627\u0631\u062f \u0645\u06cc \u0634\u0648\u062f. \u0627\u06cc\u0646 \u0628\u0647 \u067e\u06cc\u0648\u0646\u062f \u06cc\u06a9 \u0645\u062f\u0644 \u0628\u0647 \u0645\u062f\u0644 \u062f\u06cc\u06af\u0631 \u06a9\u0645\u06a9 \u0645\u06cc \u06a9\u0646\u062f [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":18940,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1743],"tags":[3064,1928,1917,1938,1926,1776,1786,1915,3631,2750,2123,2002,2668,1918,1939,1813],"class_list":["post-18939","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python","tag-django","tag-python-","tag--python","tag-1938","tag-1926","tag-1776","tag-1786","tag-1915","tag-3631","tag-2750","tag-2123","tag-python","tag-2668","tag-1918","tag-1939","tag-1813"],"acf":[],"_links":{"self":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts\/18939","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/comments?post=18939"}],"version-history":[{"count":0,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/posts\/18939\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/media\/18940"}],"wp:attachment":[{"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/media?parent=18939"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/categories?post=18939"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rasanegaar.com\/blog\/wp-json\/wp\/v2\/tags?post=18939"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}