railsã§request変数をmodelã§ä½¿ã†æ–¹æ³•:short rails:Media hubモデルã®ãƒ¬ã‚³ãƒ¼ãƒ‰ã‚’作ã£ãŸã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã®æƒ…å ±ã‚’ä¿å˜ã—ãŸã„å ´åˆãªã©ï¼Œmodelã‹ã‚‰request変数ã®ä¸èº«ãŒä½¿ã„ãŸã„ã¨ããŒã‚る． ãŸã¨ãˆã°ï¼Œã‚¯ãƒ©ã‚¤ã‚¢ãƒ³ãƒˆã®IPアドレスやUser-Agentã‚’ä¿å˜ã—ãŸã„å ´åˆãªã©ï¼Œçµæ§‹ãã†ã„ã†å ´é¢ãŒã‚る． 以下，request変数（通常ã¯ã‚³ãƒ³ãƒˆãƒãƒ¼ãƒ©ã‹ã‚‰ã—ã‹è§¦ã‚Œãªã„．）をモデルã‹ã‚‰ä½¿ã„ãŸã„å ´åˆã®ã‚„り方． class ApplicationController < ActionController::Base (çœç•¥) before_filter :set_request_filter def set_request_filter Thread.current[:request] = request end end モデル内ã§ï¼Œ request = Thread.current[:request] ã¨ã—ã¦å–å¾—ã§ãる． 以下ã®ã‚ˆã†ãªã‚„ã‚Šæ–¹ã‚‚æƒ…å ±ã¨ã—ã¦ã¯è¦‹ã‹ã‘ã‚‹ãŒï¼Œã‚°ãƒ
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