[B! activerecord] a2ikmã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

a2ikm id:a2ikm

activerecordã«é–¢ã™ã‚‹a2ikmã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (302)

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ãƒ‘ãƒ¼ãƒ•ã‚§ã‚¯ãƒˆRailsè‘—è€…ãŒè§£èª¬ã™ã‚‹deviseã®ç¾ä»£çš„ãªãƒ¦ãƒ¼ã‚¶ãƒ¼èªè¨¼ã®ãƒ¢ãƒ‡ãƒ«æ§‹æˆã«ã¤ã„ã¦ - joker1007â€™s diary
æœ€è¿‘ã€ãƒ‘ãƒ¼ãƒ•ã‚§ã‚¯ãƒˆRuby on Railsã®å¢—è£œæ”¹è¨‚ç‰ˆã‚’ãƒªãƒªãƒ¼ã‚¹ã•ã›ã¦ã„ãŸã ã„ãŸèº«ãªã®ã§ã€ä¹…ã—ã¶ã‚Šã«Railsã«ã¤ã„ã¦æ›¸ã„ã¦ã¿ã‚ˆã†ã¨æ€ã†ã€‚ ã¾ã‚ã€æ›¸ç±ã®å®£ä¼ã¿ãŸã„ãªã‚‚ã®ã§ã™ã€‚ æ•°æ—¥å‰ã«ã€noteã¨ã„ã†ã‚µãƒ¼ãƒ“ã‚¹ã§Webãƒ•ãƒãƒ³ãƒˆå´ã«æŠ•ç¨¿è€…ã®IPã‚¢ãƒ‰ãƒ¬ã‚¹ãŒéœ²å‡ºã™ã‚‹ã¨ã„ã†æ¼æ´©äº‹æ•…ãŒèµ·ãã¾ã—ãŸã€‚ã“ã‚ŒãŒã©ã‚Œãã‚‰ã„å•é¡Œã‹ã¯ä¸€æ—¦ç½®ã„ã¦ãŠã„ã¦ã€ä½•æ•…ã“ã†ã„ã†ã“ã¨ã«ãªã‚‹ã®ã‹ã€ãã—ã¦Railsã§ã‚ˆãä½¿ã‚ã‚Œã‚‹deviseã¨ã„ã†èªè¨¼æ©Ÿæ§‹ä½œæˆãƒ©ã‚¤ãƒ–ãƒ©ãƒªã®ã‚ˆã‚Šè‰¯ã„ä½¿ã„æ–¹ã«ã¤ã„ã¦è©±ã‚’ã—ã¦ã„ãã¾ã™ã€‚ (noteãŒRailsã‚’ä½¿ã£ã¦ã„ã‚‹ã‹ã€ã“ã“ã§è©±ã‚’ã™ã‚‹deviseã‚’æŽ¡ç”¨ã—ã¦ã„ã‚‹ã‹ã¯å®šã‹ã§ã¯ãªã„ã®ã§ã€ã“ã“ã‹ã‚‰å…ˆã®è©±ã¯ãã®äº‹æ•…ã¨ã¯ç›´æŽ¥é–¢ä¿‚ã‚ã‚Šã¾ã›ã‚“ã€‚Railsã ã£ãŸã¨ã—ã¦ã‚‚æã‚‰ãä½¿ã£ã¦ãªã„ã‹å¤‰ãªä½¿ã„æ–¹ã—ã¦ã‚‹ã¨æ€ã†ã‚“ã§ã™ãŒã€ç†ç”±ã¯å¾Œè¿°) ä½•æ•…ã“ã‚“ãªã“ã¨ãŒèµ·ãã‚‹ã®ã‹ ãã‚‚ãã‚‚ã€ãƒ•ãƒãƒ³ãƒˆå´ã«ä½•æ•…IPã‚¢ãƒ‰ãƒ¬ã‚¹ã‚’é€ã£ã¦ã‚“ã ã€ã¨ã„ã†è©±ã§ã™
a2ikm 2020/08/17
â€œãƒ¬ã‚³ãƒ¼ãƒ‰ã®validationã‚’è¡Œã†æ™‚ã«ã¯ã€å¢ƒç•Œã‚’æ˜Žç¢ºã«åˆ†ã‘ã¦çµ„ã¿åˆã‚ã›ãŒçˆ†ç™ºã—ãªã„æ§˜ã«ã‚³ãƒ³ãƒˆãƒãƒ¼ãƒ«ã™ã‚‹ã“ã¨ãŒé‡è¦â€

rails

authentication

security

activerecord
ãƒªãƒ³ã‚¯
padrinoã«PRã‚’é€ã£ãŸ - ãã‚Šã«ã£ã
padrino ã‚¢ãƒ—ãƒªã§activerecordã‚’5.1ç³»ã‹ã‚‰5.2.0ã«ä¸Šã’ã‚ˆã†ã¨ã—ãŸã‚‰ rake ar:migrate ã§ã‚¨ãƒ©ãƒ¼ã«ãªã£ãŸã®ã§ç›´ã—ãŸ ã‚¨ãƒ©ãƒ¼å†…å®¹ activerecord 5.2ç³»ã‹ã‚‰ã¯ ActiveRecord::Migrator.migrate ãŒãªããªã£ãŸã¨ã®ã“ã¨ã€‚ã‚ã¡ã‚‡ã£ãï¼ $ bundle exec rake ar:migrate:reset --trace ** Invoke ar:migrate:reset (first_time) ** Invoke ar:drop (first_time) ** Invoke skeleton (first_time) ** Execute skeleton ** Execute ar:drop ** Invoke ar:create (first_time) ** Invoke skeleton ** Execute
a2ikm 2020/06/08
`NoMethodError: undefined method `migrate' for ActiveRecord::Migrator:Class` ã®å¯¾å¿œç–

padrino

activerecord

rails
ãƒªãƒ³ã‚¯
Upcoming Rails 6 Bulk insert/Upsert feature
YES, Rails is finally fast also in bulk data insert/update.TL;DRActiveRecord has update_all and delete_all methods for some time already. Starting upcoming Rails 6 new methods insert_all and upsert_all are added. If you ever used activerecord-import, similar functionality was merged to ActiveRecord master itself. Quick irb example for table having column slug with unique index: It took some time t
a2ikm 2020/04/08
activerecord
ãƒªãƒ³ã‚¯
GitHub - exAspArk/batch-loader: :zap: Powerful tool for avoiding N+1 DB or HTTP queries
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a2ikm 2019/12/25
db

ruby

activerecord
ãƒªãƒ³ã‚¯
æŠ€è¡“æ›¸å…¸7ã§ã€ã€ŒActiveRecordå®Œå…¨ã«ç†è§£ã—ãŸã€ã¨ã„ã†æœ¬ã‚’å‡ºã—ã¾ã™ã€‚
æŠ€è¡“æ›¸å…¸7ã§ã€ã€ŒActiveRecordå®Œå…¨ã«ç†è§£ã—ãŸã€ã¨ã„ã†æœ¬ã‚’å‡ºã—ã¾ã™ã€‚ posted at 2019-09-21 13:10:08 +0900 by kinoppyd å…è²¬äº‹é … æœ¬æ›¸ã®ã‚¿ã‚¤ãƒˆãƒ«ã«ã‚ã‚‹ã€Œå®Œå…¨ã«ç†è§£ã—ãŸã€ã¨ã¯ã€ActiveRecordã‚’å®Œå…¨ã«ç†è§£ã™ã‚‹ã“ã¨ã§ã¯ãªãã€ã‚ãã¾ã§ç¤¾ä¼šé€šå¿µä¸Šç›¸å½“ã®ActiveRecordã€Œå®Œå…¨ã«ç†è§£ã—ãŸã€ã§ã‚ã‚Šã€æœ¬æ›¸ã¯ActiveRecordã‚’å®Œå…¨ã«ç†è§£ã™ã‚‹ã“ã¨ã‚’ä½•ã‚‰ä¿è¨¼ã™ã‚‹ã‚‚ã®ã§ã¯ã‚ã‚Šã¾ã›ã‚“ã€‚ æŠ€è¡“æ›¸å…¸7 ãƒ‰ãƒ¯ãƒ³ã‚´ã‚’é€€è·ã—ã¦SmartHRã§åƒãå§‹ã‚ãã‚ãã‚ä¸€ãƒ¶æœˆã®kinoppydã§ã™ã€‚æŠ€è¡“æ›¸å…¸ã«å‡ºã¾ã™ã€‚å ´æ‰€ã¯ã€Œâ—Žè²´ã‚µãƒ¼ã‚¯ãƒ«ã€Œãƒˆãƒ¬ã‚¤ãƒªã‚¢å¦åœ’ã€ã¯ã€Â ã‹01CÂ ã«é…ç½®ã•ã‚Œã¾ã—ãŸã€‚ã€ã§ã™ã€‚ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ã¯ã“ã“ã‹ã‚‰ã©ã†ãžã€‚ä»Šå›žã¯ã€ActiveRecordã®ã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ãƒªãƒ¼ãƒ‡ã‚£ãƒ³ã‚°ã®æœ¬ã‚’å‡ºãã†ã¨æ€ã„ã¾ã™ã€‚500å††ã§ã™ã€‚å‰å›žã¯ãƒ¡ã‚¿ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°Rubyã®è§£èª¬æœ¬ã§
a2ikm 2019/11/27
activerecord

book
ãƒªãƒ³ã‚¯
Rails 6ã‹ã‚‰ActiveRecordã®Associationã¯scopingã®å½±éŸ¿ã‚’å—ã‘ãªããªã£ã¦ã„ã‚‹ä»¶ã¨å¯¾å‡¦æ³•
ã“ã‚“ã«ã¡ã¯ã€‚æ—¥æœ¬ã§ã¯ã™ã£ã‹ã‚Šç§‹ã®ç©ºãŒè¿‘ã¥ã„ã¦ãã¾ã—ãŸã€‚å€‹äººçš„ã«å¤ã¯æš‘ã•ãŒè‹¦æ‰‹ã§ã‚ã¾ã‚Šå¥½ãã§ã¯ãªã„ã®ã§ã™ãŒã€çµ‚ã‚ã£ã¦ã—ã¾ã†ã¨ãªã‚‹ã¨æ¯Žå¹´ã©ã“ã‹å¯‚ã—ã„æ°—æŒã¡ã«ãªã‚Šã¾ã™ã€‚ ä¸€æ–¹ã§ã€ç§‹ã¯ã”é£¯ãŒç¾Žå‘³ã—ã„ã®ã§é£Ÿã¹ã‚‹äº‹ãŒå¥½ããªåƒ•ã«ã¨ã£ã¦ã¯ä¸€ç•ªå¥½ããªå£ç¯€ã§ã‚‚ã‚ã‚Šã€çµæ§‹å¿ƒãŒè¸Šã£ã¦ã„ã¾ã™ã€‚ç¬‘ ã•ã¦ã€å‰ç½®ãã¯ç½®ã„ã¨ã„ã¦ä»Šå›žã¯è¡¨é¡Œã®é€šã‚Šã€ã¨ã‚ã‚‹Rails 5.2ãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã‚’Rails 6ã«ã‚¢ãƒƒãƒ—ã‚°ãƒ¬ãƒ¼ãƒ‰ã—ãŸéš›ã«ã€ActiveRecordã®scopingã®ä»•æ§˜å¤‰æ›´ã‚’è¸ã‚“ã§ã—ã¾ã£ãŸã®ã§ãã®å¯¾å‡¦æ³•ã‚’ã”ç´¹ä»‹ã—ã¾ã™ã€‚ ãã‚‚ãã‚‚scopingã¨ã¯ ActiveRecord::RelationÂ ã®æ©Ÿèƒ½ã§ã€å¼•æ•°ã«ãƒ–ãƒãƒƒã‚¯ã‚’å—ã‘å–ã‚Šã€ãã®ä¸ã§ã¯ã€å®Ÿè¡Œæ™‚ã«é©ç”¨ã•ã‚Œã¦ã„ãŸã‚¹ã‚³ãƒ¼ãƒ—ã‚’å…¨ã‚¯ã‚¨ãƒªã§ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆã§é©ç”¨ã™ã‚‹ã€ã¨è¨€ã†ç‰©ã«ãªã‚Šã¾ã™ã€‚ ä¾‹ã¨ã—ã¦ã€deleted_at (timestamp, nullable)Â ã¨è¨€ã†attributeã‚’
a2ikm 2019/09/26
rails

activerecord
ãƒªãƒ³ã‚¯
Rails 6.0ã®è¤‡æ•°DBã§ãƒªãƒ¼ãƒ‰ãƒ¬ãƒ—ãƒªã‚«ã®ãƒ†ã‚¹ãƒˆã™ã‚‹ã®ãŸã¶ã‚“å¤§å¤‰ - ã‹ã¿ã½ã‚ãƒ¼ã‚‹
Rails 6.0ã®è¤‡æ•°DBã®ãƒ¬ãƒ“ãƒ¥ãƒ¼ã—ã¦ã‚‹ã¨ãã«æ°—ã¥ã„ãŸã“ã¨ãªã‚“ã§ã™ã‘ã©ã€ãŸã¶ã‚“ãƒªãƒ¼ãƒ‰ãƒ¬ãƒ—ãƒªã‚«ã‹ã‚‰ãƒ‡ãƒ¼ã‚¿ã‚’èªã‚€ãƒ†ã‚¹ãƒˆã‚’ã™ã‚‹ã®ãŸã¶ã‚“å¤§å¤‰ã ã¨æ€ã‚ã‚Œã¾ã™ã€‚ ã†ã¡ã®æ¥å‹™ã®ã‚¢ãƒ—ãƒªã§Active RecordãŒæ›´æ–°ã‚’æ¤œçŸ¥ã§ããªã„æ–¹æ³•ã§ãƒ‡ãƒ¼ã‚¿ãŒæ›´æ–°ã•ã‚Œã‚‹ã¨ãƒ†ã‚¹ãƒˆãŒã‚³ã‚±ã‚‹ã¨ã„ã†å•é¡ŒãŒä»¥å‰ã«ã‚ã‚Šã€ã“ã‚Œã¨åŒã˜æ§‹é€ ã®å•é¡ŒãŒãƒžã‚¹ã‚¿ãƒ¼ã®ã‚³ãƒã‚¯ã‚·ãƒ§ãƒ³ã§æ›´æ–°ã—ãŸã¨ããƒžã‚¹ã‚¿ãƒ¼ã®ã‚³ãƒã‚¯ã‚·ãƒ§ãƒ³ã®ã‚¯ã‚¨ãƒªã‚ãƒ£ãƒƒã‚·ãƒ¥ã¯ã‚¯ãƒªã‚¢ã•ã‚Œã‚‹ã‘ã©ãƒªãƒ¼ãƒ‰ãƒ¬ãƒ—ãƒªã‚«ã®ã‚³ãƒã‚¯ã‚·ãƒ§ãƒ³ã®ã‚¯ã‚¨ãƒªã‚ãƒ£ãƒƒã‚·ãƒ¥ã¯æ®‹ã£ãŸã¾ã¾ã¨ã„ã†ã®ãŒã‚ã‚‹ã‚ˆãã€ã¨ã„ã†ã®ã‚’ãƒ†ã‚¹ãƒˆã‚³ãƒ¼ãƒ‰ã§ç¤ºãã†ã¨æ€ã£ãŸã¨ãã®ã“ã¨ã§ã‚ã‚‹ã€‚ github.com é€šå¸¸Railsã‚¢ãƒ—ãƒªã§DBã¤ã‹ã£ãŸãƒ†ã‚¹ãƒˆã‚’ã™ã‚‹ã¨ãã€ãƒ†ã‚¹ãƒˆã®ä¸ã§å¤‰æ›´ã•ã‚ŒãŸãƒ‡ãƒ¼ã‚¿ã‚’æ¯Žå›žåˆæœŸçŠ¶æ…‹ã«æˆ»ã™ã®ã«ãƒ•ã‚£ã‚¯ã‚¹ãƒãƒ£ãƒ¼ã‚’ãƒãƒ¼ãƒ‰ã—ç›´ã™ã®ã¯æ™‚é–“ãŒã‹ã‹ã£ã¦åŠ¹çŽ‡ãŒã‚ã‚‹ã„ã®ã§ã€ãƒ†ã‚¹ãƒˆã‚±ãƒ¼ã‚¹ã«å…¥ã‚‹å‰ã«ãƒˆãƒ©ãƒ³ã‚¶ã‚¯ã‚·ãƒ§ãƒ³ã‚’é–‹å§‹ã—ã¨ã„ã¦ãƒ†ã‚¹ãƒˆã‚±ãƒ¼ã‚¹çµ‚ã‚ã£ãŸã‚‰
a2ikm 2019/06/26
activerecord

db
ãƒªãƒ³ã‚¯
active_record_lazy_find_by/README.md at master Â· sinsoku/active_record_lazy_find_by
a2ikm 2019/05/16
activerecord
ãƒªãƒ³ã‚¯
Rails 6.0ã§Deprecatedã«ãªã‚‹Active Recordã®æŒ¯ã‚‹èˆžã„3ã¤ - ã‹ã¿ã½ã‚ãƒ¼ã‚‹
Deprecatedã«ã—ãŸçµŒç·¯ã¨ã„ã†ã‹èƒŒæ™¯ãŒä¼ã‚ã£ã¦ã‚‹ã®ã‹ã©ã†ã‹ã‚¢ãƒ¬ã ã¨æ€ã£ãŸã®ã§ã€ã“ã“ã«æ—¥æœ¬èªžã«ã¦æ›¸ãè¨˜ã—ã¦ãŠãã€‚ Deprecate mismatched collation comparison for uniquness validator by kamipo Â· Pull Request #35350 Â· rails/rails Â· GitHub Active Recordã®uniqueness validatorã¯ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆã§case sensitiveãªæ¯”è¼ƒã‚’ã™ã‚‹ã‚“ã§ã™ãŒã€ã“ã‚ŒãŒã€æ–‡å—åˆ—ã®ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆã®collationãŒcase insensitiveãªMySQLã¨ç›¸æ€§ãŒæ‚ªãã€DBä¸Šã®UNIQUEåˆ¶ç´„ã¨ä¸€è‡´ã—ãªã„æŒ¯ã‚‹èˆžã„ã ã£ãŸã‚ŠINDEXãŒåŠ¹çŽ‡ã‚ˆãä½¿ãˆãšDBãŒæ»ã¬ã¿ãŸã„ãªå•é¡Œã‚’å¼•ãèµ·ã“ã—ã¦ã„ã¾ã—ãŸã€‚ ä¾‹: æœ¬å½“ã«ã‚ã£ãŸRailsã®æ€–ã„è©± åƒ•ã‚‚ä¸»ã«ä»•äº‹ã®ã‚³ãƒ¼ãƒ‰ãƒ¬ãƒ“ãƒ¥ãƒ¼ã§éŽåŽ»ã«ä½•
a2ikm 2019/05/15
kamipo

rails

activerecord
ãƒªãƒ³ã‚¯
SQLQL ã¨ã¯ï¼ï¼Ÿ
é€ä¿¡ã™ã‚‹ã¨ã€ã¨ã¯ æ–‡å—é€šã‚Šã€ãƒªã‚¯ã‚¨ã‚¹ãƒˆã«ãã®ã¾ã¾ SQL ã‚’å«ã‚ã‚‹ curl -XGET -H 'Authorization: Token 6f916ae6-8472-463a-9808-6af19e459541' -F "haute_couture[query]=select id, name from users" https://sqlql-sample-yancya.herokuapp.com/haute_couture
a2ikm 2019/04/25
slide

rails

sq

sqlql

activerecord

yancya
ãƒªãƒ³ã‚¯
ActiveRecordã®includes, preload, eager_load ã®å€‹äººçš„ãªä½¿ã„åˆ†ã‘ - Money Forward Developers Blog
ãƒžãƒãƒ¼ãƒ•ã‚©ãƒ¯ãƒ¼ãƒ‰ç¦å²¡æ‹ ç‚¹ã®è²¬ä»»è€…ã‚’ã—ã¦ãŠã‚Šã¾ã™ é»’ç”° ã§ã™ã€‚ æ™®æ®µã¯Rails ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã¨ã—ã¦ ãƒžãƒãƒ¼ãƒ•ã‚©ãƒ¯ãƒ¼ãƒ‰ã‚¯ãƒ©ã‚¦ãƒ‰çµŒè²» ã®é–‹ç™ºã‚’æ‹…å½“ã—ã¦ã„ã¾ã™ã€‚ æ™®æ®µRailsã‚’ä½¿ã£ã¦é–‹ç™ºã•ã‚Œã¦ã„ã‚‹æ–¹ã§ã‚ã‚Œã°ã€N+1å•é¡Œã«æ‚©ã¾ã•ã‚ŒãŸçµŒé¨“ã¯å¤§æŠµã®æ–¹ãŒãŠã‚ã‚Šã§ã¯ãªã„ã§ã—ã‚‡ã†ã‹ã€‚ N+1ãªã‚¯ã‚¨ãƒªã®ç™ºè¦‹ã«ã¯ bullet ã‚’ä½¿ã†ã¨è‰¯ã„ã§ã™ãã€‚ bulletã‚’ä½¿ã†ã¨N+1ãªã‚¯ã‚¨ãƒªã‚’ç™ºè¦‹ã—ã¦ãã‚Œã€ã•ã‚‰ã«ã€å…·ä½“çš„ã«ã“ã“ã«includesã‚’è¿½åŠ ã—ãªã•ã„ã¨æŒ‡æ‘˜ã¾ã§ã—ã¦ãã‚Œã‚‹ã®ã§å¤§å¤‰åŠ©ã‹ã‚Šã¾ã™ã€‚ ã—ã‹ã—ã€å…ˆæ—¥bulletã«è¨€ã‚ã‚Œã‚‹ãŒã¾ã¾ã«includesã‚’ä»˜ã‘ã¦ã¿ãŸã¨ã“ã‚ã€N+1ã¯è§£æ¶ˆã—ãŸã‚‚ã®ã®ã€ã‚¹ãƒãƒ¼ã‚¯ã‚¨ãƒªã«è¦‹èˆžã‚ã‚Œã‚‹ã“ã¨ã¨ãªã£ãŸã®ã§ã€includes,preload, eager_loadã«ã¤ã„ã¦æ”¹ã‚ã¦èª¿ã¹ã¦ã¾ã¨ã‚ã¦ã¿ã‚‹ã“ã¨ã«ã—ã¾ã—ãŸã€‚ ï¼ˆã‚½ãƒ¼ã‚¹èª¿æŸ»ã—ãŸRailsã®ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã¯ 6.0.0.beta3 ã§ã™ã€‚ï¼‰ i
a2ikm 2019/04/05
activerecord

rails
ãƒªãƒ³ã‚¯
activerecord-bitemporal/README.md at master Â· kufu/activerecord-bitemporal
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a2ikm 2019/03/23
activerecord

db

design

pattern
ãƒªãƒ³ã‚¯
GitHub - grosser/bitfields: n Booleans = 1 Integer, saves columns and migrations.
records bitfield_changes user.bitfield_changes # => {"seller" => [false, true], "insane" => [false, true]} (also seller_was / seller_change / seller_changed? / seller_became_true? / seller_became_false?) Individual added methods (i.e, seller_was, seller_changed?, etc..) can be deactivated with bitfield ..., added_instance_methods: false Note: ActiveRecord 5.2 changes the behavior of _was and _chan
a2ikm 2019/01/08
activerecord

gem
ãƒªãƒ³ã‚¯
DDDã¨ã‚³ãƒ¼ãƒ‰ã¨ã—ã¦ã®æ£ã—ã• - pospomeã®ãƒ—ãƒã‚°ãƒ©ãƒŸãƒ³ã‚°æ—¥è¨˜
ãƒ‰ãƒ¡ã‚¤ãƒ³é§†å‹•è¨è¨ˆ #1 Advent Calendar 2018ã®14æ—¥ç›®ã‚’æ‹…å½“ã™ã‚‹@pospomeã§ã™ã€‚ ä»Šå›žã¯DDDã¨ã‚³ãƒ¼ãƒ‰ã¨ã—ã¦ã®æ£ã—ã•ã«ã¤ã„ã¦æ›¸ã„ã¦ã¿ã‚ˆã†ã¨æ€ã„ã¾ã™ã€‚ DDDã¯è¨è¨ˆæ‰‹æ³•ã§ã‚ã‚‹ ã‚³ãƒ¼ãƒ‰ã¨ã—ã¦ã®æ£ã—ã• ã‚³ãƒ¼ãƒ‰ã¨ã—ã¦ã®æ£ã—ã•ã‚’è¦‹å¤±ã† ãƒ¦ãƒ¼ã‚¹ã‚±ãƒ¼ã‚¹ã®æ—¥æœ¬èªžã‚’"ãã®ã¾ã¾"ã‚³ãƒ¼ãƒ‰ã«è½ã¨ã—è¾¼ã‚‚ã†ã¨ã™ã‚‹ ç„¡é§„ã«ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆåŒå£«ã®çµåˆåº¦ã‚’ä¸Šã’ã‚‹ Rubyã®ActiveRecordã®æ£ã—ã• ã‚³ãƒ¼ãƒ‰ã¨ã—ã¦ã®ãƒ¡ãƒªãƒƒãƒˆã€ãƒ‡ãƒ¡ãƒªãƒƒãƒˆã‚’å…·ä½“çš„ã«è€ƒãˆã¦è§£æ±ºã™ã‚‹ ã¾ã¨ã‚ DDDã¯è¨è¨ˆæ‰‹æ³•ã§ã‚ã‚‹ DDD = ãƒ‰ãƒ¡ã‚¤ãƒ³é§†å‹•è¨è¨ˆ ã§ã™ã‚ˆãã€‚ "è¨è¨ˆ"ã¨ã„ã†å˜èªžãŒä»˜ã„ã¦ã„ã‚‹ã“ã¨ã‹ã‚‰åˆ†ã‹ã‚‹é€šã‚Šã€DDDã¯ã‚ãã¾ã§ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢ã«ãŠã‘ã‚‹è¨è¨ˆæ‰‹æ³•ã§ã™ã€‚ ãã®ãŸã‚DDDã®æˆæžœç‰©ã¯"ã‚³ãƒ¼ãƒ‰"ã§ã‚ã‚Šã€DDDã®ç›®çš„ã¯"ã‚³ãƒ¼ãƒ‰ã®å¯èªæ€§ã‚’ä¸Šã’ã‚‹ã“ã¨"ã§ã‚ã‚‹ã¨è‡ªåˆ†ã¯è€ƒãˆã¦ã„ã¾ã™ã€‚ DDDãŒæŒã¤"ãƒ“ã‚¸ãƒã‚¹ã‚’ç†è§£ã™ã‚‹", "ãƒ‰ãƒ¡ã‚¤ãƒ³ã‚’
a2ikm 2018/12/14
activerecord

ddd
ãƒªãƒ³ã‚¯
find_by_sqlã—ãŸã‚ã¨ã«kaminariã§ãƒšãƒ¼ã‚¸ãƒãƒ¼ã‚·ãƒ§ãƒ³ã™ã‚‹ã«ã¯ - ãŠã‚‚ã—ã‚webã‚µãƒ¼ãƒ“ã‚¹é–‹ç™ºæ—¥è¨˜
èª²é¡Œ Railsã§ãƒšãƒ¼ã‚¸ãƒãƒ¼ã‚·ãƒ§ãƒ³æ©Ÿèƒ½ã‚’ä½œã‚‹ã¨ãã«ã¯kaminari ã‚’ä½¿ã†ã®ãŒå®šç•ªã§ã™ãã€‚Active Recordã®ã‚¯ã‚¨ãƒªãƒ¡ã‚½ãƒƒãƒ‰ã«å¯¾ã—ã¦ãƒ¡ã‚½ãƒƒãƒ‰ãƒã‚§ãƒ¼ãƒ³å½¢å¼ã§pageã‚„perã‚’è¿½åŠ ã™ã‚‹ã ã‘ã§æ‰‹è»½ã«ãƒšãƒ¼ã‚¸ãƒãƒ¼ã‚·ãƒ§ãƒ³ãŒã§ãã¾ã™ã€‚ ãŸã ã€find_by_sqlã‚’åˆ©ç”¨ã—ã¦Active Recordã®ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’ä½œæˆã—ãŸã¨ãã«ã¯ã€æˆ»ã‚Šå€¤ãŒé…åˆ—ã«ãªã£ã¦ã—ã¾ã†ã®ã§pageã‚„perãªã©ã‚’å¾Œã«è¿½åŠ ã™ã‚‹ã“ã¨ãŒã§ãã¾ã›ã‚“*1ã€‚ã©ã†ã—ãŸã‚‰ã‚ˆã„ã®ã§ã—ã‚‡ã†ã‹ã€‚ å•é¡Œã®ã‚ã‚‹ã‚„ã‚Šæ–¹ ã‚°ã‚°ã‚‹ã¨Kaminari.paginate_arrayã‚’ä½¿ã£ãŸæ¬¡ã®ã‚ˆã†ãªã‚„ã‚Šæ–¹ãŒã„ãã¤ã‹å¼•ã£ã‹ã‹ã‚Šã¾ã™ã€‚ Kaminari.paginate_array(array_from_find_by_sql).page(params[:page]).per(10) Kaminari.paginate_arrayã¯èªã‚“ã§å—ã®ã”ã¨ãã€é…åˆ—ã‚’kam
a2ikm 2018/11/28
kaminari

activerecord
ãƒªãƒ³ã‚¯
sql - ActiveRecord Arel OR condition - Stack Overflow
How can you combine 2 different conditions using logical OR instead of AND? NOTE: 2 conditions are generated as rails scopes and can't be easily changed into something like where("x or y") directly. Simple example: admins = User.where(:kind => :admin) authors = User.where(:kind => :author) It's easy to apply AND condition (which for this particular case is meaningless): (admins.merge authors).to_s
a2ikm 2018/11/21
activerecord

arel
ãƒªãƒ³ã‚¯
Ruby memory, ActiveRecord and Draper
At Appaloosa we often process CSV. When we process thousands of CSV lines of users that need to be added to (or removed from) a group, we are seeing a huge increase in memory. Sometimes the Heroku dynos cannot manage it. We will explain how we jump from this when processing 4_000 users (look at blue line but also time): memory profilerWe used stackprof, memory_profiler. We look at tool like speeds
a2ikm 2018/11/15
activerecord

ruby

memory
ãƒªãƒ³ã‚¯
GitHub - kamipo/retryable_find_or_create_by: Retrying once if raise a RecordNotUnique
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a2ikm 2018/11/09
activerecord

gem
ãƒªãƒ³ã‚¯
Large Scale Payments Systems and Ruby on Rails
Iâ€™ve been writing code for fun and for work at both small startups and large companies for the past 30 years. Over the years Iâ€™ve become fascinated with the payments industry, and I have spent the past decade working in payments related companies. Before coming to work on Payments at Airbnb, I worked for PayPal, for a few startups and then was part of the NFC Wallet project at Google. The payments
a2ikm 2018/09/27
activerecord

rails

db

design
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Railsã§orderå¿˜ã‚Œã‚’é˜²æ¢ã™ã‚‹ãŸã‚ã®gemã‚’ä½œã‚Šã¾ã—ãŸ - PIYO - Tech & Life -
orderã€ã¤ã‘å¿˜ã‚ŒãŒã¡ã§ã™ã‚ˆãã€‚ç’°å¢ƒãŒå¤‰ã‚ã‚‹ã¨æ€ã£ã¦ãŸé †ç•ªã«å‡ºãªã‹ã£ãŸã‚Šã—ã¾ã™ã€‚ æ›´ã«åŽ„ä»‹ãªã®ã¯ã€ã¤ã‘å¿˜ã‚Œã¦ã‚‚ãªã‚“ã¨ãªãæ£ã—ã„é †ç•ªã§å‹•ã„ã¦ã„ã‚‹ã¨ãã§ã€ä½•ã‹ã®ã‚¿ã‚¤ãƒŸãƒ³ã‚°ã§æ€ã£ãŸé †ã§ã¯ãªããªã£ã¦ã—ã¾ã†ã“ã¨ãŒã‚ã‚Šã¾ã™ã€‚ã¨ã„ã†ã‹ã‚ã‚Šã¾ã—ãŸã€‚ å¤šåˆ†åƒ•ã®å ´åˆã¯DBã®ãƒžã‚¤ãƒŠãƒ¼ã‚¢ãƒƒãƒ—ã‚°ãƒ¬ãƒ¼ãƒ‰ã®å½±éŸ¿ã®ã‚ˆã†ã«è¦‹ãˆã¾ã—ãŸã€‚è©³ç´°ã¯è¿½ã£ã¦ã„ãªã„ã§ã™ãŒã€ç¢ºã‹ã«ä¸€éƒ¨ã§OrderæŒ‡å®šãŒæ¼ã‚Œã¦ã„ãŸã®ã§é †ç•ªãŒå¤‰ã‚ã£ã¦ã—ã¾ã£ãŸã®ã§ã™ã€‚ ãã†ã„ã†äº‹æ…‹ã«é–‹ç™ºä¸ã«æ°—ãŒã¤ã‘ã‚‹ã‚ˆã†ã«ã™ã‚‹ãŸã‚ã€must_be_orderedã¨ã„ã†gemã‚’ä½œã‚Šã¾ã—ãŸã€‚å‹¤ã‚ã¦ã‚‹ä¼šç¤¾ã®ç¤¾å†…ãƒãƒƒã‚«ã‚½ãƒ³ãŒ8/31ã«ã‚ã£ãŸã®ã§ã€ã¡ã‚‡ã†ã©ã„ã„ãƒã‚¿ã¨ã°ã‹ã‚Šã«ã“ã‚Œã‚’ä½œã‚Šã¾ã—ãŸã€‚ gemã¯ã“ã¡ã‚‰ã«ã”ã–ã„ã¾ã™ã€‚ https://github.com/pi-chan/must_be_orderedç¾æ™‚ç‚¹ã§ã®ä½¿ã„æ–¹ã‚’ç´¹ä»‹ã—ã¾ã™ï¼ˆã‚¤ãƒ³ã‚¿ãƒ¼ãƒ•ã‚§ãƒ¼ã‚¹ã¯ãã®ã†ã¡å¤‰ã‚ã£ã¦ã„ã‚‹æ°—ãŒã™ã‚‹ï¼‰ã€‚
a2ikm 2018/09/20
rails

gem

activerecord
ãƒªãƒ³ã‚¯
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