[B! ActiveRecord] wnoguchi0727ã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

wnoguchi0727 id:wnoguchi0727

ActiveRecordã«é–¢ã™ã‚‹wnoguchi0727ã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (7)

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ã¦ã‚ãˆã‚‰ã®Railsã¯ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆæŒ‡å‘ã˜ã‚ƒããˆï¼ã¾ãšã¯Callbackã‚¯ãƒ©ã‚¹ã€Validatorã‚¯ãƒ©ã‚¹ã‚’æ´»ç”¨ã—ã‚ï¼ - Qiita
ã¡ã‚‡ã£ã¨ç…½ã‚Šæ°—å‘³ã®ã‚¿ã‚¤ãƒˆãƒ«ã«ã—ã¦ã¿ã¾ã—ãŸãŒã€Railsã§é–‹ç™ºã™ã‚‹æ™‚ã¯æ„è˜çš„ã«OOPã«å¯„ã›ãªã„ã¨ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã®åŠ›ãŒæ´»ã‹ã›ãªããªã‚‹ã‚ˆã£ã¦ã“ã¨ã¨ã€RailsãŒæä¾›ã—ã¦ã„ã‚‹ã‚¯ãƒ©ã‚¹ã®è²¬å‹™ã‚’åˆ†å‰²ã™ã‚‹ã“ã¨ã‚’æ”¯æ´ã—ã¦ãã‚Œã‚‹æ©Ÿèƒ½ã«ã¤ã„ã¦è©±ã‚’ã—ã¾ã™ã€‚ ActiveRecordã®æ€§è³ª Railsé–‹ç™ºã«ãŠã„ã¦ã¯ã€ãƒ¢ãƒ‡ãƒ«å±¤ã«ãƒã‚¸ãƒƒã‚¯ã‚’æ›¸ã„ã¦ã‚³ãƒ³ãƒˆãƒãƒ¼ãƒ©ãƒ¼ã¯è–„ãã—ã‚ã€ã¨ã„ã†ã®ã¯ã—ã¤ã“ãè¨€ã‚ã‚Œã¦ã„ã‚‹ã®ã§ã€æ¦‚ãæµ¸é€ã—ã¦ãã¦ã„ã‚‹ã¨æ€ã„ã¾ã™ã€‚ ãã‚Œã«åŠ ãˆã¦ã€æœ€è¿‘ç§ãŒçµæ§‹ã—ã¤ã“ãä¸»å¼µã—ã¦ãŠããŸã„ã®ãŒã€ãƒ¢ãƒ‡ãƒ« = ActiveRecordã§ã¯ç„¡ã„ã‚ˆã€ã¨ã„ã†ã“ã¨ã§ã™ã€‚ ActiveRecordã¯æˆã‚Šç«‹ã¡ã‹ã‚‰è¨€ã†ã¨ã€ãƒã‚¸ãƒƒã‚¯ã¨DBã¸ã®æ°¸ç¶šåŒ–ã‚’ã¾ã¨ã‚ã¦ã‚«ãƒ—ã‚»ãƒ«åŒ–ã™ã‚‹ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ãƒ‘ã‚¿ãƒ¼ãƒ³ã‹ã‚‰æ¥ã¦ã„ã¾ã™ã€‚(è©³ã—ãã¯ã‚¨ãƒ³ã‚¿ãƒ¼ãƒ—ãƒ©ã‚¤ã‚ºã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒãƒ£ãƒ‘ã‚¿ãƒ¼ãƒ³ã¨ã„ã†æ›¸ç±ã‚’èªã‚€ã¨è‰¯ã„ã§ã™) ã“ã®æ–¹æ³•ã¯ãƒã‚¸ãƒƒã‚¯ãŒè¤‡é›‘ã§ãªã„å ´åˆã€ã¤ã¾
wnoguchi0727 2013/12/05
ActiveRecord

Rails

é–‹ç™º

Ruby on Rails
ãƒªãƒ³ã‚¯
Deprecation warning when using has_many :through :uniq in Rails 4
Rails 4 has introduced a deprecation warning when using :uniq => true with has_many :through. For example: has_many :donors, :through => :donations, :uniq => true Yields the following warning: DEPRECATION WARNING: The following options in your Goal.has_many :donors declaration are deprecated: :uniq. Please use a scope block instead. For example, the following: has_many :spam_comments, conditions:
wnoguchi0727 2013/12/02
Rails

ActiveRecord
ãƒªãƒ³ã‚¯
Rails ã§ååˆ†ã«æ´»ç”¨ã•ã‚Œã¦ã„ãªãã¦ã‚‚ã£ãŸã„ãªã„ ActiveRecord::Relation ã®ãƒ¡ã‚½ãƒƒãƒ‰ TOP 10 - æ‰é¢¨å‘‚2.0 - A Lifelog -
2013å¹´12æœˆ2æ—¥æ›´æ–°: å‚ç…§ã•ã‚Œã‚‹ã“ã¨ãŒå¤šã„ã®ã§ Rails 4 ã®æƒ…å ±ã‚’è¨³æ³¨ã¨ã—ã¦è¿½è¨˜ã—ã¾ã—ãŸã€‚ã¾ãŸã€Rails 4 ã«é–¢ã™ã‚‹æƒ…å ±ã¯ã€ WEB+DB PRESS Vol.73 ãŒéžå¸¸ã«å‚è€ƒã«ãªã‚‹ã®ã§ã€ä¸€èªã‚’ãŠã™ã™ã‚ã—ã¾ã™ã€‚ ã“ã®æ–‡ç« ã¯ Mitch Crowe æ°ã®ãƒ–ãƒã‚°ã‚ˆã‚Š 2012å¹´4æœˆ14æ—¥ã®è¨˜äº‹ã‚’ç¿»è¨³ã—ãŸã‚‚ã®ã§ã™ã€‚ The 10 Most Underused ActiveRecord::Relation Methods http://blog.mitchcrowe.com/blog/2012/04/14/10-most-underused-activerecord-relation-methods/ æ˜¨æ—¥ã¯ ActiveRecord::Relation ã®ã‚³ãƒ¼ãƒ‰ã«è†ã¾ã§æµ¸ã‹ã£ã¦ã€ä½¿ã‚ã‚Œã¦ã„ã‚‹ã®ã‚’ã“ã‚Œã¾ã§å…¨ç„¶è¦‹ãŸã“ã¨ãŒãªã„é¢ç™½ã„ãƒŠã‚²ãƒƒãƒˆã‚’æ€ã„å‡ºã•ã›ã¦ãã‚ŒãŸã€‚ã“ã®è¨˜äº‹ã§ã€ååˆ†ã«æ´»ç”¨
wnoguchi0727 2013/07/25
ActiveRecord

rails
ãƒªãƒ³ã‚¯
validates :uniquenessã¯uniquenessã‚’ä¿è¨¼ã—ãªã„ã®ã§DBã«indexã‚’ã¤ã‘ã¾ã—ã‚‡ã†ï¼ - YomuKaku Memo
Railsã®ActiveRecordã® validates :uniqueness ã‚’ä¿¡ã˜ãã‚‹ã¨æ™‚ã«ä¸å…·åˆã‚’æ‹›ãã¾ã™ã€‚ Railsã®ActiveRecordã§ã¯ã€ validates :uniqueness => true ã‚’ä½¿ç”¨ã™ã‚‹ã“ã¨ã§ã€æŒ‡å®šã—ãŸå±žæ€§ãŒuniqueã§ã‚ã‚‹ã“ã¨ã‚’æ¤œè¨¼ã§ãã¾ã™ã€‚ ä¾‹ãˆã°ã€nameã¨em ailã¨ã„ã†å±žæ€§ã‚’æŒã¤Userã¨ã„ã†ã‚¯ãƒ©ã‚¹ã«ã¤ã„ã¦è€ƒãˆã¾ã™ã€‚ ã“ã®å ´åˆã«nameãŒuniqueã§ã‚ã‚‹ï¼ˆä¾‹ãˆã°yamadaã¨ã„ã†nameãŒè¤‡æ•°å˜åœ¨ã™ã‚‹ã“ã¨ã‚’è¨±å¯ã—ãªã„ï¼‰ã“ã¨ã‚’æ¤œè¨¼ã™ã‚‹ã«ã¯ã€Userã‚¯ãƒ©ã‚¹ã®ä¸ã§ä»¥ä¸‹ã®ã‚ˆã†ã«validationã‚’è¨˜è¿°ã—ã¾ã™ã€‚ class User < ActiveRecord::Base ... validates :name, :presence => true, :uniqueness => true ... end Railsã®ã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³
wnoguchi0727 2013/07/24
validation

Rails

ActiveRecord

uniqueness
ãƒªãƒ³ã‚¯
How to filter parameters in rails?
wnoguchi0727 2013/07/19
ActiveRecord
ãƒªãƒ³ã‚¯
#326 ActiveAttr - RailsCasts
ã‹ã¤ã¦ã‚¨ãƒ”ã‚½ãƒ¼ãƒ‰219ã§ã€ActiveModelã‚’ç”¨ã„ã¦ã€ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ãƒ†ãƒ¼ãƒ–ãƒ«ã‚’è£ã«æŒãŸãªã„ãªãŒã‚‰ãƒ‡ãƒ¼ã‚¿æ¤œè¨¼ãªã©ã®ActiveRecordã®æ©Ÿèƒ½ã‚’æŒã£ãŸãƒ¢ãƒ‡ãƒ«ã‚’ä½œæˆã—ã¾ã—ãŸã€‚ActiveModelãŒå„ªã‚Œã¦ã„ã‚‹ã®ã¯ç¢ºã‹ã§ã™ãŒã€ã“ã®ã‚ˆã†ã«ç›´æŽ¥åˆ©ç”¨ã™ã‚‹ã«ã¯ã‚ã¾ã‚Šä½¿ã„ã‚„ã™ã„ã¨ã¯è¨€ãˆã¾ã›ã‚“ã€‚ä¾‹ãˆã°å…¥åŠ›ãƒ‡ãƒ¼ã‚¿ã®æ¤œè¨¼æ©Ÿèƒ½ã‚’æŒã£ãŸãƒ¢ãƒ‡ãƒ«ã‚’ä½œã‚‹ã¨ãªã‚‹ã¨ã‚·ãƒ³ãƒ—ãƒ«ãªã‚‚ã®ã§ã‚‚ã‹ãªã‚Šã®é‡ã®ã‚³ãƒ¼ãƒ‰ã‚’æ›¸ãã“ã¨ã«ãªã‚Šã¾ã™ã€‚ class Message include ActiveModel::Validations include ActiveModel::Conversion extend ActiveModel::Naming attr_accessor :name, :em ail, :content validates_presence_of :name validates_format_of :em ail, :w
wnoguchi0727 2013/07/15
ActiveRecord

active_attr

validation
ãƒªãƒ³ã‚¯
Rails 4.0ã‚’ä½¿ã£ã¦ã¿ã‚ˆã† â€“ ãã®2 ActiveRecordã®ä½¿ã„æ–¹ï½œTechRacho by BPSæ ªå¼ä¼šç¤¾
Rails4ã§ã¯ã€ActiveRecordå‘¨ã‚Šã®æ›¸ãæ–¹ã«ä½•ç‚¹ã‹å¤‰æ›´ãŒå…¥ã£ã¦ã„ã¾ã™ã€‚ æ™®é€šã«Webã‚¢ãƒ—ãƒªã‚’ä½œã‚‹éš›ã«ã¯ã€ã‚‚ã£ã¨ã‚‚ã‚ã‹ã‚Šã‚„ã™ã„å¤‰æ›´ç‚¹ã®1ã¤ã§ã™ãã€‚ ActiveRecord::Modelã®include å¾“æ¥ã€ãƒ¢ãƒ‡ãƒ«ã‚’å®šç¾©ã™ã‚‹ã«ã¯ class User < ActiveRecord::Base end ã¨ã—ã¦ã„ã¾ã—ãŸã€‚ Rails4ã§ã¯ã€ class User include ActiveRecord::Model end ã¨ã„ã†æ›¸ãæ–¹ãŒã§ãã¾ã™ã€‚åˆ¥ã‚¯ãƒ©ã‚¹ã‚’ç¶™æ‰¿ã•ã›ã‚‹ã“ã¨ãŒã§ãã‚‹ã®ãŒå¤§ããªãƒ¡ãƒªãƒƒãƒˆã§ã™ã€‚ å½±éŸ¿ç¯„å›²ãŒåºƒãï¼ˆActiveRecord::Baseã‚’æ‹¡å¼µã™ã‚‹ãƒ©ã‚¤ãƒ–ãƒ©ãƒªãŒå¤šã„ãŸã‚ï¼‰ã€ã²ã‚‡ã£ã¨ã—ãŸã‚‰4.1ãªã©ã§æ›´ã«æ–¹é‡ãŒå¤‰ã‚ã‚‹å¯èƒ½æ€§ã‚‚ã‚ã‚Šã¾ã™ãŒã€ActiveRecord::Baseã«ä¾å˜ã—ãŸæ›¸ãæ–¹ã‚’ã—ãªã„ã‚ˆã†ã«æ°—ã‚’ã¤ã‘ã‚‹å¿…è¦ãŒã‚ã‚Šã¾ã™ã€‚ find_by_*ã®å»ƒæ¢ find_b
wnoguchi0727 2013/06/05
Rails

rails4

ActiveRecord
ãƒªãƒ³ã‚¯
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