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sirocco id:sirocco

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Active Record - Wikipedia
ã€Œã‚¢ã‚¯ãƒ†ã‚£ãƒ–ãƒ¬ã‚³ãƒ¼ãƒ‰ã€ã‚¢ã‚¯ãƒ†ã‚£ãƒ–ãƒ»ãƒ¬ã‚³ãƒ¼ãƒ‰ã€ã¯ã“ã®é …ç›®ã¸è»¢é€ã•ã‚Œã¦ã„ã¾ã™ã€‚ã‚¤ã‚®ãƒªã‚¹ã®ãƒ¬ã‚³ãƒ¼ãƒ‰ãƒ¬ãƒ¼ãƒ™ãƒ«ã«ã¤ã„ã¦ã¯ã€ŒãƒŸãƒ¥ãƒ¼ã‚¸ãƒƒã‚¯ãƒ»ãƒ•ã‚©ãƒ¼ãƒ»ãƒã‚¤ã‚·ãƒ§ãƒ³ã‚ºã€ã‚’ã”è¦§ãã ã•ã„ã€‚ Active Recordã¯ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã‹ã‚‰ãƒ‡ãƒ¼ã‚¿ã‚’èªã¿å‡ºã™ãŸã‚ã®ã‚¢ãƒ—ãƒãƒ¼ãƒã§ã‚ã‚‹ã€‚ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ãƒ†ãƒ¼ãƒ–ãƒ«ã‚ã‚‹ã„ã¯ãƒ“ãƒ¥ãƒ¼ã®1è¡ŒãŒ1ã¤ã®ã‚¯ãƒ©ã‚¹ã«ãƒ©ãƒƒãƒ—ã•ã‚Œã€ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã®ã‚¤ãƒ³ã‚¹ã‚¿ãƒ³ã‚¹ãŒãã®ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã®1ã¤ã®è¡Œã«çµåˆã•ã‚Œã‚‹ã€‚ã“ã®ã‚¯ãƒ©ã‚¹ã¯ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã‚¢ã‚¯ã‚»ã‚¹ã®ã‚«ãƒ—ã‚»ãƒ«åŒ–ã‚‚è¡Œã†[1]ã€‚ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã®ç”Ÿæˆå¾Œã¯ã€ä¿å˜ãƒ¡ã‚½ãƒƒãƒ‰ã§æ–°ã—ã„è¡ŒãŒãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã«è¿½åŠ ã•ã‚Œã‚‹ã€‚ ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆãŒæ›´æ–°ã•ã‚Œã‚‹ã¨ã€ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã®å¯¾å¿œã™ã‚‹è¡Œã‚‚ã¾ãŸæ›´æ–°ã•ã‚Œã‚‹ã€‚ãƒ©ãƒƒãƒ‘ãƒ¼ã‚¯ãƒ©ã‚¹ã¯ãƒ†ãƒ¼ãƒ–ãƒ«ã‚ã‚‹ã„ã¯ãƒ“ãƒ¥ãƒ¼ã®å„ã‚«ãƒ©ãƒ ã«å¯¾ã™ã‚‹ã‚¢ã‚¯ã‚»ã‚µãƒ¡ã‚½ãƒƒãƒ‰ã‚’å®Ÿè£…ã™ã‚‹ãŒã€ãã‚Œä»¥å¤–ã®æŒ¯ã‚‹èˆžã„ï¼ˆMVCã®ãƒ¢ãƒ‡ãƒ«ãŒæ‹…å½“ã™ã¹ããƒã‚¸ãƒƒã‚¯ï¼‰ã‚‚è¨˜è¿°ã™ã‚‹ã“ã¨ãŒã§ãã‚‹[1]ã€‚ ãƒ†ãƒ¼ãƒ–ãƒ«ã¨ã‚¯ãƒ©ã‚¹ãŒä¸€å¯¾ä¸€ã§çµã³ã¤ãã“
sirocco 2009/10/29
activerecord
ãƒªãƒ³ã‚¯
ActiveRecordã‚’ä½¿ã£ãŸã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã‚’èªã‚‚ã† ï¼ˆ1/4ï¼‰ï¼ ï¼ IT
ç¬¬3å›žã€€ActiveRecordã‚’ä½¿ã£ãŸã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã‚’èªã‚‚ã† å€‰è²« ç¾©äºº æ¾æ‘ ç« å¼˜ TISæ ªå¼ä¼šç¤¾ SonicGarden 2009/1/28 å„ªã‚ŒãŸãƒ—ãƒã‚°ãƒ©ãƒžã¯ã‚³ãƒ¼ãƒ‰ã‚’æ›¸ãã®ã¨åŒã˜ãã‚‰ã„ã€ã‚³ãƒ¼ãƒ‰ã‚’èªã¿ã“ãªã›ãªãã¦ã¯ãªã‚‰ãªã„ã€‚å„ªã‚ŒãŸã‚³ãƒ¼ãƒ‰ã‚’èªã‚€ã“ã¨ã§ã€è‡ªèº«ã®ã‚¹ã‚ãƒ«ã‚‚ä¸Šé”ã™ã‚‹ã®ã ï¼ˆç·¨é›†éƒ¨ï¼‰ ã“ã‚Œã¾ã§ã®2å›žã®è¨˜äº‹ã§ã€Railsã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³ã®åŸºæœ¬çš„ãªæ§‹æˆã¨ã€ãƒ†ã‚¹ãƒ†ã‚£ãƒ³ã‚°ãƒ•ãƒ¬ãƒ¼ãƒ ãƒ¯ãƒ¼ã‚¯ã§ã‚ã‚‹RSpecã‚’ä½¿ã£ãŸã‚½ãƒ¼ã‚¹ã‚³ãƒ¼ãƒ‰ã®ã‚³ãƒ¼ãƒ‰ãƒªãƒ¼ãƒ‡ã‚£ãƒ³ã‚°ã‚’è¡Œã£ã¦ãã¾ã—ãŸã€‚ä»Šå›žã¯ã€Railsã®ã‚ãƒ¢ã§ã‚‚ã‚ã‚‹DBã‚¢ã‚¯ã‚»ã‚¹å‡¦ç†ã®éƒ¨åˆ†ã‚’æ‰±ã†ActiveRecordã‚’æ·±ãæŽ˜ã‚Šä¸‹ã’ã¦ã‚³ãƒ¼ãƒ‰ãƒªãƒ¼ãƒ‡ã‚£ãƒ³ã‚°ã‚’è¡Œã„ã¾ã™ã€‚ ActiveRecordã¨ã¯ã€ã¾ã•ã—ãåŒåã®â€œActive Recordâ€ã¨ã„ã†DBã‚¢ã‚¯ã‚»ã‚¹ã«é–¢ã™ã‚‹ãƒ‡ã‚¶ã‚¤ãƒ³ãƒ‘ã‚¿ãƒ¼ãƒ³ã‚’å®Ÿè£…ã—ãŸãƒ©ã‚¤ãƒ–ãƒ©ãƒªã§ã™ã€‚ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã®ãƒ†ãƒ¼ãƒ–ãƒ«ã‚’ã‚¯ãƒ©ã‚¹ã¨ã—ã¦ãƒ“ã‚¸ãƒã‚¹ãƒã‚¸ãƒƒã‚¯ã‚’æŒãŸã›ã€ãƒ†ãƒ¼
sirocco 2009/10/29
activerecord
ãƒªãƒ³ã‚¯
IBM Developer
IBM Developer is your one-stop location for getting hands-on training and learning in-demand skills on relevant techno logies such as generative AI, data science, AI, and open source.
sirocco 2007/09/02
activerecord

rails
ãƒªãƒ³ã‚¯
IBM Developer
IBM Developer is your one-stop location for getting hands-on training and learning in-demand skills on relevant techno logies such as generative AI, data science, AI, and open source.
sirocco 2007/08/29
activerecord
ãƒªãƒ³ã‚¯
has_one :through - ä¸–ç•Œç·šèˆªè·¡è”µ
Rails 1.1ä»¥é™ã®ActiveRecordã§ã¯has_and_belongs_to_manyã®ä»£ã‚ã‚Šã« has_many :through ã‚’ä½¿ã†ã®ãŒãƒˆãƒ¬ãƒ³ãƒ‰ã€‚ã“ã‚Œã¯ã“ã‚Œã§ä¾¿åˆ©ãªã®ã ã‘ã‚Œã©ã€Activity Based Datamodelå¼ã®ãƒ†ãƒ¼ãƒ–ãƒ«æ§‹é€ ã‚’ä½¿ã†ãŸã‚ã«ã¯ã‚„ã£ã±ã‚Šhas_one :throughã‚‚æ¬²ã—ã„ã€‚ æœ¬å®¶ã®MLã§ã¯7æœˆ24æ—¥ã®"belongs_to :through?"ã¨ã‹ã„ã†ã‚¹ãƒ¬ãƒƒãƒ‰ã§delegateä½¿ãˆã¨ã‹è¨€ã‚ã‚Œã¦ã‚‹ã€‚ã§ã‚‚ã€ãã®å ´åˆç™ºè¡Œã•ã‚Œã‚‹SQLãŒåŠ¹çŽ‡æ‚ªãã†ã§å«Œã ã€‚ã‚„ã£ã±ã‚Šçµåˆã—ã¦ä¸€æ°—ã«æŒã£ã¦æ¥ãŸã„ã€‚ ã§ã€ä½œã£ã¦ã¿ãŸã€‚ãƒ—ãƒ©ã‚°ã‚¤ãƒ³ã§ã‚‚ã€environments.rbã«ç›´æŽ¥æ›¸ãè¾¼ã¿ã§ã‚‚å¥½ããªã‚ˆã†ã«ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ã¦ãã ã•ã„ã€‚æš«å®šç‰ˆã ã—ã€‚ ActiveRecordæœ¬ä½“ã®é–¢é€£ã®å®Ÿè£…ã«æ¿€ã—ãä¾å˜ã—ã¦ã‚‹ã¨ã„ã†ãŸã¡ã®æ‚ªã• ActiveRecord 1.14.3ã§å‹•ä½œç¢ºèªã€‚ä»–ã¯
sirocco 2006/08/31
rails

activerecord
ãƒªãƒ³ã‚¯
netswitch! | Rails Plugin - ActiveRecordæ‹¡å¼µç³»2
:clear_after_save => trueã‚’æŒ‡å®šã™ã‚‹ã¨ã€saveå¾Œã¯modified?ãŒtrueã˜ã‚ƒãªããªã‚‹ã€‚ person = Person.find(:first) person.age # 100 person.age = 10 person.age_modified? # true person.original_age # 100 person.modified_attributes # {:age => 100} # restore person.restore_attributes :only => :age person.age # 100 # clear person.clear_original_attributes :only => :age # dbã¨æ¯”è¼ƒ person.modified?(:reload) # true
sirocco 2006/08/30
activerecord

plugin
ãƒªãƒ³ã‚¯
http://wiki.rails2u.com/ActiveRecord%E3%81%A7SQL%E3%81%AEselect
sirocco 2006/08/25
activerecord
ãƒªãƒ³ã‚¯
ãƒ½( ãƒ»âˆ€ãƒ»)ãƒŽãã¾ãã¾ãƒ¼(2006-01-05)
â— [Rails] with_scope (ActiveRecord) ActiveRecord::Base.with_scope(method_scoping = {}) {|| ...} with_scope ã¯ãƒ†ãƒ¼ãƒ–ãƒ«æ“ä½œã®ç¯„å›²ã‚’é™å®šã™ã‚‹ã‚¯ãƒ©ã‚¹ãƒ¡ã‚½ãƒƒãƒ‰ã§ã™ã€‚æŒ‡å®šã•ã‚ŒãŸãƒ–ãƒãƒƒã‚¯ã‚’å®Ÿè¡Œã™ã‚‹éš›ã€xxx_by_sql ä»¥å¤–ã®ãƒ†ãƒ¼ãƒ–ãƒ«æ“ä½œç”¨ã®ã‚¯ãƒ©ã‚¹ãƒ¡ã‚½ãƒƒãƒ‰å…¨ã¦ãŒå¼•æ•°ã§æŒ‡å®šã•ã‚ŒãŸåˆ¶é™(å½±éŸ¿)ã‚’å—ã‘ã¾ã™(â€»1)ã€‚ ä»¥ä¸‹ã®ã‚ˆã†ãªå ´é¢ã§åŠ¹æžœã‚’ç™ºæ®ã—ã¾ã™ã€‚ å…±é€šã®å€¤ã‚’æŒã¤è¤‡æ•°ã‚¢ã‚¤ãƒ†ãƒ ã‚’ç°¡å˜ã«åˆæœŸåŒ–ã—ãŸã„ã€‚ find(params[:id]) ã§å–å¾—ã—ãŸãƒ‡ãƒ¼ã‚¿ãŒä¸æ£ã‚¢ã‚¯ã‚»ã‚¹ã‹ã©ã†ã‹ã®æ¤œè¨¼ãŒé¢å€’ã ã€‚ ã‹ã¨è¨€ã£ã¦ã€find æ™‚ã« :conditions æŒ‡å®šã™ã‚‹ã®ã‚‚é¢å€’ã ã€‚ ã•ã‚‰ã«ã€ãã‚Œã‚’CRUDæ¯Žã«æŒ‡å®šã™ã‚‹ãªã‚“ã¦æ°—ãŒé ããªã‚‹ã€‚ â€»1ï¼šãƒ¬ã‚·ãƒ¼ãƒã¨åŒã˜ã‚¯ãƒ©ã‚¹ã®ã¿å½±éŸ¿ã‚’å—ã‘ã¾ã™ã€‚ â— ã‚¹ã‚³ãƒ¼ãƒ—æŒ‡å®š ã‚¹ã‚³ãƒ¼ãƒ—ã®ç¨®é¡ž
sirocco 2006/08/19
activerecord

èˆžæ³¢ä¹™
ãƒªãƒ³ã‚¯
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èˆžæ³¢ä¹™!ã£ã¦ã“ã¨ã§ã€‚æœ¬é¡Œçµ‚ã‚ã‚Šã€‚ ã§ã‚‚ãã‚Œã˜ã‚ƒã‚ã‚“ã¾ã‚Šãªã®ã§ã€ãã¾ãã¾ãƒ¼ã®äººã®ä½œã£ãŸä¾¿åˆ©ãªãƒ‘ãƒƒãƒã®ã”ç´¹ä»‹ã€‚ ã¾ãšã“ã‚Œã‚’èªã‚€ã€‚ ã€ŒCascaded Eager Loading ãŒæ¬²ã—ã„ã€ ã§ã€ã“ã‚Œã‚’èªã‚€ã€‚ ã€ŒCascaded Eager Loadingã€ ã£ã¦ã“ã¨ã§ã€ActiveRecordã§ãƒ†ãƒ¼ãƒ–ãƒ«ã®å‚ç…§ã®ãã®ã¾ãŸå‚ç…§ã¿ãŸã„ãªã‚±ãƒ¼ã‚¹ã‚’ç°¡å˜ã«è¡¨ç¾ã§ãã¾ã™ã‚ˆã£ã¦ãƒ‘ãƒƒãƒã§ã™ã€‚ ã“ã‚Œ
sirocco 2006/08/19
activerecord

èˆžæ³¢ä¹™
ãƒªãƒ³ã‚¯
L'eclat des jours(2006-08-19)
_ ActiveRecordå†…éƒ¨ã§ã®å±žæ€§ã®èªã¿æ›¸ã ã‹ã‚“ãŸã‚“Ruby on Railsã§Webã‚¢ãƒ—ãƒªã‚±ãƒ¼ã‚·ãƒ§ãƒ³é–‹ç™º(arton) P.144ã§ã€ãªãœread_attributeã¨è¨˜è¿°ã—ã¦ã„ã‚‹ã‹ã¨è³ªå•ã‚’å—ã‘ãŸã®ã ã‘ã©ã€å³ç”ã§ããªã‹ã£ãŸã€‚ã§ã€ãªãœãã†æ›¸ã„ãŸã‹ã‚ã‚‰ãŸã‚ã¦è€ƒãˆã¦ã¿ãŸã€‚ class It em < ActiveRecord::Base def foo x = 3 end def bar puts "#{x}" end end ä¸Šã®It emã§xãŒå±žæ€§ï¼ˆit emsãƒ†ãƒ¼ãƒ–ãƒ«ã®ãƒ•ã‚£ãƒ¼ãƒ«ãƒ‰ï¼‰ã ã¨ã™ã‚‹ã¨ã€xã¸ä»£å…¥ã—ã‚ˆã†ã¨ã—ã¦ã„ã‚‹ãƒ¡ã‚½ãƒƒãƒ‰fooã¯ãƒã‚°ã€xã®å†…å®¹ã‚’èªã¿å‡ºãã†ã¨ã—ã¦ã„ã‚‹barã¯æƒ³å®šã©ãŠã‚Šã«å‹•ãã€‚ ã¨ã„ã†ã®ã¯fooã®å ´åˆã€Rubyã¯xã‚’ãƒãƒ¼ã‚«ãƒ«å¤‰æ•°ã®å®£è¨€ã¨ã¿ãªã™ã€‚ãã®ãŸã‚ã€3ã¯ãƒ•ã‚£ãƒ¼ãƒ«ãƒ‰xã«ã¯ä»£å…¥ã•ã‚Œãšã€ãƒãƒ¼ã‚«ãƒ«å¤‰æ•°xã«ä»£å…¥ã•ã‚Œã‚‹ã ã‘ã¨ãªã‚‹ã€‚ã—ãŸãŒã£ã¦ã“ã®ãƒ¡ã‚½ãƒƒãƒ‰ã¯å®Ÿè¡Œæ™‚ã«ã‚¨ãƒ©ãƒ¼ã«ã¯ãªã‚‰ãª
sirocco 2006/08/19
activerecord

arton
ãƒªãƒ³ã‚¯
Associations | å„ªã—ã„Railsã®è‚²ã¦æ–¹ | ãƒ½( ãƒ»âˆ€ãƒ»)ãƒŽãã¾ãã¾ãƒ¼
class Member < ActiveRecord::Base has_one :favorite end class Favorite < ActiveRecord::Base belongs_to :member end has_one ã§é–¢é€£ã‚’å®šç¾©ã™ã‚‹ã¨ã€ä»¥ä¸‹ã®ãƒ¡ã‚½ãƒƒãƒ‰ãŒè‡ªå‹•çš„ã«å®šç¾©ã•ã‚Œã¾ã™ã€‚(belongs_to å´ã«ã‚‚åŒæ§˜ã®ãƒ¡ã‚½ãƒƒãƒ‰ãŒå®šç¾©ã•ã‚Œã¾ã™)ã€‚ (é–¢é€£å)(force_reload = false) : é–¢é€£ã™ã‚‹ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’å–å¾—ã—ã¾ã™ã€‚ (é–¢é€£å)= : é–¢é€£ã™ã‚‹ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’ä»£å…¥ã—ã¾ã™ã€‚(è‡ªå‹•çš„ã«DBã¸ä¿å˜ã•ã‚Œã¾ã™) (é–¢é€£å).nil? : é–¢é€£ã™ã‚‹ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆãŒå˜åœ¨ã—ãªã„ã“ã¨ã‚’ç¢ºèªã—ã¾ã™ã€‚(ãªã‘ã‚Œã° true ã‚’è¿”ã™) build_(é–¢é€£å)(attributes = {}) : é–¢é€£ã™ã‚‹ã‚ªãƒ–ã‚¸ã‚§ã‚¯ãƒˆã‚’ä½œæˆã—ã¦è¿”ã—ã¾ã™ã€‚(DBã¸ã®ä¿å˜ã¯ã•ã‚Œã¾ã›ã‚“) create
sirocco 2006/08/10
activerecord
ãƒªãƒ³ã‚¯
ã¯ã¦ãªã‚°ãƒ«ãƒ¼ãƒ—ã®çµ‚äº†æ—¥ã‚’2020å¹´1æœˆ31æ—¥(é‡‘)ã«æ±ºå®šã—ã¾ã—ãŸ - ã¯ã¦ãªã®å‘ŠçŸ¥
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sirocco 2006/07/19
activerecord

rails
ãƒªãƒ³ã‚¯
ActiveRecord
Introduction ç¬¬1ç« : for Ruby users (4) ãƒ»CRUD operations ãƒ»Assocations ç¬¬2ç« : for Rails users (15) ãƒ»With Scope ãƒ»Scoped Access ç¬¬3ç« : for Rails developers (17) ãƒ»Acts As View ãƒ»Finder Query CRUD : ActiveRecord Pattern require 'rubygems' require_gem 'activerecord' ActiveRecord::Base.eatablish_connection( :adapter=>"sqlite3", :db=>"db/users.db" ) class Member < ActiveRecord::Base # "members" e
sirocco 2006/06/12
activerecord
ãƒªãƒ³ã‚¯
http://mizzy.org/program/learningRails05.flav
sirocco 2006/06/12
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IBM Developer is your one-stop location for getting hands-on training and learning in-demand skills on relevant techno logies such as generative AI, data science, AI, and open source.
sirocco 2006/06/12
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sirocco 2006/06/09
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Peak Obsession
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sirocco 2006/06/09
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Rubyist Magazine -RubyOnRails ã‚’ä½¿ã£ã¦ã¿ã‚‹ -ç¬¬3å›ž ActiveRecord
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