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k_oshima id:k_oshima

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æ“ä½œå±¥æ´/æ™‚ç‚¹æŒ‡å®šã‚¢ã‚¯ã‚»ã‚¹ã®å®Ÿç¾ - BiTemporal Data Model ã®å®Ÿè·µ / Implementing command history and temporal access
ã“ã®è³‡æ–™ã§èª¬æ˜Žã—ã¦ã„ã‚‹ ActiveRecord::BiT emporal ã¯ https://github.com/kufu/activerecord-bit emporal ã‚ˆã‚Šã‚¢ã‚¯ã‚»ã‚¹ã§ãã¾ã™ã€‚ ä»¥ä¸‹ã€ã‚»ãƒƒã‚·ãƒ§ãƒ³èª¬æ˜Ž: ãƒ‡ãƒ¼ã‚¿ã¯Webã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®ä¸å¿ƒã§ã‚ã‚Šã€æœ€ã‚‚é‡è¦ãªã‚‚ã®ã§ã™ã€‚ç§ã®å‹¤â€¦
k_oshima 2019/03/25
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history

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mergeã¯mergeã§ã‚‚Hashã˜ã‚ƒãªãã¦ActiveRecord::SpawnMethodsã®mergeãªã®ã§ã™ã€‚ joinå…ˆã®ãƒ†ãƒ¼ãƒ–ãƒ«ã®æ¡ä»¶ã§çµžã‚Šè¾¼ã¿ãŸã„ class Entry < ActiveRecord::Base has_many :comments end class Comment < ActiveRecord::Base belongs_to :entry end ä¾‹ãˆã°ãƒ–ãƒã‚°ã®ã‚¨ãƒ³ãƒˆãƒªãƒ¼ã®å…¬é–‹ãƒ»éžå…¬é–‹ãŒã„ã¤ã§ã‚‚åˆ‡ã‚Šæ›¿ãˆã‚‰ã‚Œã‚‹ã¨ã—ã¦ã€éžå…¬é–‹ã«ãªã£ã¦ã„ã‚‹ãƒ–ãƒã‚°ã®ã‚³ãƒ¡ãƒ³ãƒˆã‚’æŠ½å‡ºã—ãŸã„ãªã€ã¨æ€ã£ãŸã¨ã—ã¾ã™ã€‚ å…¬é–‹ãƒ»éžå…¬é–‹ã‹ã¯entriesãƒ†ãƒ¼ãƒ–ãƒ«ã®published_atã‚«ãƒ©ãƒ ã«DateTimeãŒã‚»ãƒƒãƒˆã•ã‚Œã¦ã„ã‚‹ã‹ã•ã‚Œã¦ã„ãªã„ã‹ã§åˆ†ã‹ã‚‹ã¨ã™ã‚‹ã¨ã€ä»¥ä¸‹ã®ã‚ˆã†ãªã‚³ãƒ¼ãƒ‰ã«ãªã‚‹ã¨æ€ã„ã¾ã™ã€‚ Comment.joins(:entry).where(entries: { publishe
k_oshima 2015/12/16
join and sort by joined column

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Rails
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ãƒ¬ã‚¬ã‚·ãƒ¼ãªã‚¦ã‚§ãƒ–ã‚¢ãƒ—ãƒªã‚’ Rails ã§æ‹¡å¼µã™ã‚‹ã¨ãã« DB ã®æ‰±ã„ã§æ°—ã‚’ã¤ã‘ã‚‹ã“ã¨ #rubyhiroba - å½¼å¥³ã‹ã‚‰ã¯ã€ãŠã„ã¡ã‚ƒã‚“ã¨å‘¼ã°ã‚Œã¦ã„ã¾ã™
k_oshima 2015/07/17
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k_oshima 2015/04/01
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design

refactoring

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k_oshima 2015/04/01
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k_oshima 2015/04/01
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k_oshima 2015/04/01
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