Rails + Postgres Array + ANY LIKE - Adam Niedzielski
Ruby on Rails has a good support for Postgres Array type. I really like using this feature when creating a separate database table sounds like over-engineering. In this short post I want to share my solution for the following problem: “find a record for which any of its tags contains a given stringâ€. Let’s use Book model with categories array field as an example. We start by generating a migration
Rails 4.0 Sneak Peek: PostgreSQL array support - DockYard
I’m happy to announce that Rails 4.0 now has support for PostgreSQL arrays. You can create an array column easily at the time of migration by adding :array => true. Creating an array column will respect the other options you add to the column (length, default, etc). create_table :table_with_arrays do |t| t.integer :int_array, :array => true # integer[] t.integer :int_array, :array => true, :length
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弊社ã§(ç·åŠ›ã‚’上ã’ã¦)メンテナンスã—ã¦ã„ã‚‹tappã¨ã„ã†ãƒ©ã‚¤ãƒ–ラリãŒã‚ã‚‹ã®ã§ã™ãŒã€æ€ã£ãŸã‚ˆã‚ŠèªçŸ¥åº¦ãŒä½Žã„よã†ãªã®ã§ã“ã“ã§ç´¹ä»‹ã•ã›ã¦ã„ãŸã ãã¾ã™ã€‚ ã¾ã¨ã‚ tappã¯ã€å¾“æ¥ã®Print Debugã®å•é¡Œç‚¹ã‚’解決ã™ã‚‹ç”»æœŸçš„ãªãƒ©ã‚¤ãƒ–ラリã§ã™ã€‚ 次ã®ã‚ˆã†ãªçµŒé¨“ãŒã‚ã‚‹æ–¹ã¯ã€ã„ã¾ã™ãGemfileã«tappã‚’è¿½åŠ ã™ã‚‹ã“ã¨ã‚’ãŠå‹§ã‚ã—ã¾ã™ã€‚ メソッドãƒã‚§ãƒ¼ãƒ³ã®é–“ã®ã‚ªãƒ–ジェクトã®çŠ¶æ…‹ã‚’見るãŸã‚ã ã‘ã«ä¸€æ™‚変数を使ã£ãŸã“ã¨ãŒã‚ã‚‹ ppã‚„pã€putsを消ã—忘れã¦ãƒªãƒã‚¸ãƒˆãƒªã«ã‚³ãƒŸãƒƒãƒˆã—ã¦ã—ã¾ã£ãŸ tappã¨ã¯ tappã¯ã€Print Debugã‚’ç°¡å˜ã«è¡Œã†ãŸã‚ã®Rubyライブラリã§ã™ã€‚ リãƒã‚¸ãƒˆãƒªã¯https://github.com/esminc/tappã«ãªã‚Šã¾ã™ã€‚ tappã®æ´å² tappã®ä½œè€…ã§ã‚ã‚‹@ursmã¯ã€2008〜2009å¹´é ƒã«ç¤¾å†…å‘ã‘ã®ãƒ¢ãƒ³ã‚ーパッãƒã¨ã—ã¦tappを生ã¿ã ã—ã€Rails勉強会41.
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