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Update Or Delete On Table Violates Foreign Key Constraint Rails, ã“ã

Update Or Delete On Table Violates Foreign Key Constraint Rails, ã“ã®ã‚¨ãƒ©ãƒ¼ã¯ã€ Company モデルを削除ã—よã†ã¨ã—ãŸéš›ã«ç™ºç”Ÿã—ã¾ã—ãŸã€‚ å•題ã®è§£æ±ºã«ã¯ã€ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã®å¤–部キー制約㫠on_delete: :cascade オプションを追加ã™ã‚‹å¿…è¦ãŒã‚りã¾ã™ã€‚ ã“れã«ã‚ˆã‚Šã€è¦ªãƒ¢ãƒ‡ãƒ«ã®å‰Šé™¤æ™‚ã«é–¢é€£ã™ã‚‹å­ãƒ¢ãƒ‡ãƒ«ãŒè‡ªå‹•çš„ã«å‰Šé™¤ã•れã¾ã™ã€‚ 剿æ¡ä»¶ã®ã‚»ã‚¯ã‚·ãƒ§ãƒ³ã‚’ã€æä¾›ã•れãŸãƒ¢ãƒ‡ãƒ«ã®å®šç¾©ã«åŸºã¥ã„ã¦å†æ§‹æˆã—ã¾ã™ã€‚ ã“ã“ã§ç›®æŒ‡ã™ã®ã¯ã€è¨˜äº‹ã®èª­è€…ãŒå•é¡Œã®æ–‡è„ˆã‚’より明確ã«ç†è§£ã§ãるよã†ã«ã€ãƒ¢ãƒ‡ãƒ«é–“ã®é–¢ä¿‚性ã¨ãれらãŒã©ã®ã‚ˆã†ã«é€£æºã—ã¦ã„ã‚‹ã‹ã‚’詳細ã«èª¬æ˜Žã™ã‚‹ã“ã¨ã§ã™ã€‚ 📌 é‡è¦ãªå‚考資料 📌 â–¶ï¸ ä»¥ä¸‹ã®è¨˜äº‹ã‚‚å‚考ã«ã—ã¦ãã ã•ã„。 â—€ï¸ Railsアプリケーション開発中ã€ä»¥ä¸‹ã®ã‚ˆã†ãªå¤–部キー制約é•åã®ã‚¨ãƒ©ãƒ¼ã«ç›´é¢ã—ã¾ã—ãŸã€‚ ã“ã®ã‚¨ãƒ©ãƒ¼ã¯ã€ Company モデルを削除ã—よã†ã¨ã—ãŸéš›ã«ç™ºç”Ÿã—ã¾ã—ãŸã€‚ å•題ã®è§£æ±ºã«ã¯ã€ エラーãŒèµ·ããŸæ‰‹é †ã¯ä»¥ä¸‹ã®æµã‚Œã§ã™ã€‚ 1. Solution Verified - Updated June 13 2024 at 7:48 PM - English php artisan migrate:refresh ã‚’å©ã„ãŸã¨ã“ã‚ã€ä»¥ä¸‹ã®ã‚¨ãƒ©ãƒ¼ãŒå‡ºãŸã€‚ Integrity constraint violation: 1217 Cannot delete or update a parent row: a foreign key constraint fails (SQL: drop table if exists `comments`) 親å­é–¢ä¿‚ã®ã‚¢ã‚½ã‚·ã‚¨ãƒ¼ã‚·ãƒ§ãƒ³ã‚’組んã§ã„ã‚‹å ´åˆã€ migrationファイル㮠down By default, foreign key constraints in PostgreSQL are checked after each statement. The there were entries in employees. TEST_A table with columns that have a lot of ActiveRecord::InvalidForeignKey: PG::ForeignKeyViolation: ERROR: update or delete on table "users" violates foreign key constraint "fk_rails_03de2dc08c" on table "comments" DETAIL: Key (id)= (11) is still referenced from table "comments". 0 Recipe: gitlab::database_migrations * ruby_block[check 環境ã¨ã—ã¦ã¯ã€DBã¯postgresã‚’ã—よã†ã—ã¦ã„ã¾ã™ã€‚ 二ã¤ã®ãƒ†ãƒ¼ãƒ–ルを作æˆã—ã¦ãŠã‚Šã€deleteボタンを押ã—ãŸã¨ãã«ã€ä¸‹è¨˜ã®ã‚¨ãƒ©ãƒ¼ãŒç™ºç”Ÿã—ã¾ã™ã€‚ update or delete on table "user" violates foreign key constraint "user_img_user_id_fkey" on table "user_img" ã“ã®ã‚ˆã†ãªãƒ¢ãƒ‡ãƒ«ãŒã‚る時ã«ã€A. 4 サーãƒãƒ¼ I am working with Django v4. 0. KEY_COLUMN_USAGE テーブルã‹ã‚‰ã€å¤–部キーã«é–¢ã™ã‚‹æƒ…報をå–å¾—ã§ãã¾ã™ã€‚ ã“ã®ãƒ†ãƒ¼ãƒ–ルã«å¯¾ã™ã‚‹ã‚¯ã‚¨ãƒªãƒ¼ã®ä¾‹ã‚’次ã«ç¤ºã—ã¾ã™ã€‚ Answer The PSQLException indicating a foreign key constraint violation typically occurs when an attempt is made to insert or update a row that references a foreign key value not present in the parent table. PG::ForeignKeyViolation: ERROR: update or delete on table "detections" violates foreign key constraint "fk_rails_8633ff3bb0" on table "links" DETAIL: Key (id)=(1) is still referenced from table "links". PG::ForeignKeyViolation: ERROR: insert or update on table "statuses" violates foreign key constraint "fk_rails_94a6f70399" · Issue #3681 · mastodon/mastodon ActiveRecord::InvalidForeignKey: Mysql2::Error: Cannot delete or update a parent row: a foreign key constraint failsã®ã‚¨ãƒ©ãƒ¼ã®å¯¾å‡¦ Rails ActiveRecord åˆå¿ƒè€… Last updated at 2021-01-18 Posted at 2021-01-15 今回ã¯ã€å¤–部キー制約ãŒã‚るテーブルデータã®å‰Šé™¤ã‚’試ã¿ãŸéš›ã«ã€ [Error]Integrity constraint violation: 1451 Cannot delete or update a parent row: a foreign key constraint fails ã¨ã„ã†ã‚¨ãƒ©ãƒ¼ãŒç™ºç”Ÿã—ã¾ã—ãŸã®ã§è§£æ±ºç­–を記録ã—ã¦ãŠãã¾ã™ã€‚.

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