{"id":32726,"date":"2021-08-01T08:08:09","date_gmt":"1970-01-01T00:00:00","guid":{"rendered":"http:\/\/www.sejuku.net\/blog\/?p=32726"},"modified":"2024-05-06T11:44:59","modified_gmt":"2024-05-06T02:44:59","slug":"%e3%80%90rails%e5%85%a5%e9%96%80%e3%80%91cache%e3%81%ae%e4%bd%bf%e3%81%84%e6%96%b9%e3%81%be%e3%81%a8%e3%82%81","status":"publish","type":"post","link":"https:\/\/www.sejuku.net\/blog\/32726","title":{"rendered":"\u3010Rails\u5165\u9580\u3011cache\u306e\u4f7f\u3044\u65b9\u307e\u3068\u3081"},"content":{"rendered":"

\u3053\u3093\u306b\u3061\u306f! \u30d5\u30ea\u30fc\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u9577\u702c\u3067\u3059\u3002<\/p>\n

\u307f\u306a\u3055\u3093\u306fcache<\/strong><\/span>\u3092\u4f7f\u3063\u3066\u3044\u307e\u3059\u304b\uff1f<\/p>\n

cache\u3092\u4e0a\u624b\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308c\u3070\u3001\u7c21\u6f54\u306b\u30b5\u30a4\u30c8\u3092\u9ad8\u901f\u5316<\/strong><\/span>\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001cache\u306e\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066<\/p>\n

\u30fbcache(\u30ad\u30e3\u30c3\u30b7\u30e5)\u3068\u306f
\n\u30fbRails5\u3067\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u4f7f\u7528\u3059\u308b\u6e96\u5099\u3092\u3059\u308b
\n\u30fb\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0(\u30da\u30fc\u30b8\u5168\u4f53\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b)
\n\u30fb\u30a2\u30af\u30b7\u30e7\u30f3\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0(\u7279\u5b9a\u306e\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b)<\/strong><\/span><\/p>\n

\u3068\u3044\u3046\u57fa\u672c\u7684\u306a\u5185\u5bb9\u304b\u3089\u3001<\/p>\n

\u30fb\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0(\u90e8\u5206\u7684\u306b\u30da\u30fc\u30b8\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b)
\n\u30fb\u30e2\u30c7\u30eb\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0(\u30e2\u30c7\u30eb\u3067\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b)
\n\u30fb\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308bcache\u3092\u524a\u9664\u3059\u308b\u65b9\u6cd5<\/strong><\/span><\/p>\n

\u3068\u3044\u3063\u305f\u5fdc\u7528\u7684\u306a\u5185\u5bb9\u306b\u3064\u3044\u3066\u3082\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n

cache(\u30ad\u30e3\u30c3\u30b7\u30e5)\u3068\u306f<\/h2>\n

cache<\/strong><\/span>\u306f\u4eca\u3067\u306f\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u306e\u7528\u8a9e\u3068\u3057\u3066\u5b9a\u7740\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u5143\u306f\u300c \u301c\u3092\u96a0\u3059\u300d \u3068\u3044\u3046\u610f\u5473\u3092\u6301\u3064\u8a00\u8449\u3067\u3059\u3002<\/p>\n

\u305d\u306e\u8a9e\u6e90\u306e\u610f\u5473\u901a\u308a\u3001cache\u306e\u5f79\u5272\u306f\u975e\u5e38\u306b\u30b7\u30f3\u30d7\u30eb\u3067\u3059\u3002<\/p>\n

cache\u3067\u306f\u4e00\u5ea6\u8aad\u307f\u8fbc\u307e\u308c\u305f\u30c7\u30fc\u30bf\u3092\u3069\u3053\u304b\u306b\u4fdd\u5b58\u3057\u3066\u304a\u3044\u3066\u3001\u6b21\u56de\u304b\u3089\u305d\u306e\u30c7\u30fc\u30bf\u304c\u4fdd\u5b58\u3057\u3066\u3042\u308b\u3068\u3053\u308d\u304b\u3089\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b\u3053\u3068\u3067\u6bce\u56de\u540c\u3058\u30c7\u30fc\u30bf\u8aad\u307f\u8fbc\u3080\u7121\u99c4\u3092\u56de\u907f\u3057\u307e\u3059\u3002<\/strong><\/span><\/p>\n

\u3044\u3061\u3044\u3061\u540c\u3058\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3059\u308b\u5fc5\u8981\u304c\u306a\u304f\u3001\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u306a\u3069\u306e\u30b9\u30d4\u30fc\u30c9\u304c\u683c\u6bb5\u306b\u901f\u304f\u306a\u308b\u305f\u3081\u30e6\u30fc\u30b6\u30fc\u304c\u3088\u308a\u5feb\u9069\u306b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u4f7f\u7528<\/strong><\/span>\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

Rails5\u3067\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u4f7f\u7528\u3059\u308b\u6e96\u5099\u3092\u3059\u308b<\/h2>\n

\u3067\u306f\u3001\u65e9\u901f\u30c1\u30e5\u30fc\u30c8\u30ea\u30a2\u30eb\u5f62\u5f0f\u3067\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u4f53\u9a13\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n

\u4eca\u56de\u306frails5.1.4\u3068ruby2.4\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u3067\u8a71\u3057\u3092\u9032\u3081\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n

\u307e\u305a\u306f\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u306b\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u6253\u3061\u8fbc\u3093\u3067\u3001\u65b0\u3057\u3044rails\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u7acb\u3061\u4e0a\u3052\u307e\u3057\u3087\u3046\u3002<\/p>\n

rails new CacheTest -T<\/pre>\n
\u4eca\u56de\u306f\u30c6\u30b9\u30c8\u3092\u8a18\u8ff0\u3057\u306a\u3044\u306e\u3067\u3001\u300c-T\u300d\u3092\u3064\u3051\u3066test\u30d5\u30a1\u30a4\u30eb\u7fa4\u3092\u4f5c\u6210\u3057\u306a\u3044\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u307e\u305a\u59cb\u3081\u306b\u3001\u521d\u671f\u8a2d\u5b9a\u3067\u306f\u958b\u767a\u74b0\u5883\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u306a\u3044<\/strong><\/span>\u306e\u3067\u3001\u6709\u52b9\u306b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u306b\u4ee5\u4e0b\u306e\u30b3\u30de\u30f3\u30c9\u3092\u6253\u3061\u8fbc\u3093\u3067\u3001\u958b\u767a\u74b0\u5883\u3067\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u6709\u52b9\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
rails dev:cache<\/pre>\n
[\u5b9f\u884c\u7d50\u679c]<\/p>\n
Development mode is now being cached.\r\n<\/pre>\n
\u3053\u308c\u3067\u958b\u767a\u74b0\u5883\u3067\u3082\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u6709\u52b9\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n
\u307e\u305f\u3001\u3053\u306e\u30b3\u30de\u30f3\u30c9\u3067\u306f\u3001\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u76f4\u4e0b\u306etmp\u30d5\u30a9\u30eb\u30c0\u5185\u306bcaching-dev.txt\u3068\u3044\u3046\u30ad\u30e3\u30c3\u30b7\u30e5\u7528\u306e\u30d5\u30a1\u30a4\u30eb\u3082\u81ea\u52d5\u3067\u4f5c\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u305d\u308c\u306b\u4f34\u3063\u3066\u3001config\/environments\/development.rb\u306b\u306f\u4ee5\u4e0b\u306e\u8a2d\u5b9a\u30b3\u30fc\u30c9\u304c\u8a18\u8ff0\u3055\u308c\u307e\u3059\u3002<\/p>\n
  # Enable\/disable caching. By default caching is disabled.\r\n  if Rails.root.join('tmp\/caching-dev.txt').exist?\r\n    config.action_controller.perform_caching = true\r\n\r\n    config.cache_store = :memory_store\r\n    config.public_file_server.headers = {\r\n      'Cache-Control' => \"public, max-age=#{2.days.seconds.to_i}\"\r\n    }\r\n  else\r\n    config.action_controller.perform_caching = false\r\n\r\n    config.cache_store = :null_store\r\n  end<\/pre>\n
\u3088\u304f\u898b\u308b\u3068if\/else<\/strong><\/span>\u306e\u8ad6\u7406\u69cb\u9020\u306b\u306a\u3063\u3066\u3044\u3066\u3001\u3055\u304d\u307b\u3069\u7d39\u4ecb\u3057\u305ftmp\/caching-dev.txt\u304c\u3042\u308b\u304b\u306a\u3044\u304b\u306b\u3088\u3063\u3066\u6761\u4ef6\u5206\u5c90\u3057\u3066\u3044\u307e\u3059\u3002
\n( if Rails.root.join(‘tmp\/caching-dev.txt’).exist? )<\/p>\n
tmp\/caching-dev.tx\u304c\u3042\u308b\u5834\u5408\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u6709\u52b9\u306b\u306a\u308a\u3001\u306a\u3044\u5834\u5408\u306f\u7121\u52b9\u306b\u306a\u308b\u3088\u3046\u306b\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u624b\u52d5\u3067\u6709\u52b9\/\u7121\u52b9\u3092\u5207\u308a\u66ff\u3048\u308b\u5fc5\u8981\u304c\u306a\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0(\u30da\u30fc\u30b8\u5168\u4f53\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b)<\/h2>\n
\u305d\u308c\u3067\u306f\u3001\u6e96\u5099\u304c\u6574\u3063\u305f\u306e\u3067\u3001\u65e9\u901f\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0\u3092\u5b9f\u88c5\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002
\n
\n\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0<\/strong><\/span>\u3067\u306f\u3001\u30da\u30fc\u30b8\u306e\u5185\u5bb9\u3092\u3059\u3079\u3066\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u4fdd\u5b58\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u53b3\u5bc6\u306b\u8a00\u3046\u3068\u3001\u30da\u30fc\u30b8\u306e\u3059\u3079\u3066\u306eHTML\u3092\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\u76f4\u4e0b\u306epublic\u30d5\u30a9\u30eb\u30c0\u5185\u306b\u4fdd\u5b58\u3057\u307e\u3059\u3002<\/p>\n
\u306a\u306e\u3067\u3001\u30da\u30fc\u30b8\u3092\u4e00\u5ea6\u3067\u3082\u8a2a\u308c\u305f\u3053\u3068\u306e\u30e6\u30fc\u30b6\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u6709\u52b9\u671f\u9650\u304c\u5207\u308c\u3066\u3044\u306a\u3044\u9650\u308a\u3001\u30d3\u30e5\u30fc\u3068\u304b\u30ec\u30a4\u30a2\u30a6\u30c8\u3092\u3082\u3046\u4e00\u5ea6\u53d6\u5f97\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n
\u3057\u304b\u3057\u3001\u8a8d\u8a3c\u3055\u308c\u305f\u30e6\u30fc\u30b6\u30fc\u3060\u3051\u304c\u30da\u30fc\u30b8\u3092\u4f7f\u7528\u3059\u308b\u5834\u5408\u3084\u3001\u30da\u30fc\u30b8\u306e\u8aad\u307f\u8fbc\u307f\u74b0\u5883\u3088\u3063\u3066\u9055\u3046\u898b\u3048\u65b9\u3092\u3057\u3066\u3044\u308b\u72b6\u614b\u3067\u3001\u30da\u30fc\u30b8\u306e\u5168\u4f53\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u4fdd\u5b58\u3057\u3066\u304a\u304f\u306e\u306f\u3042\u307e\u308a\u3044\u3044\u65b9\u6cd5\u3068\u306f\u8a00\u3048\u307e\u305b\u3093\u3002
\n<\/strong><\/span>
\n\u306a\u306e\u3067\u3001\u5b9f\u306fRails4\u306e\u6642\u70b9\u3067\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0\u306f\u3042\u304f\u307e\u3067\u3082gem\u306e1\u3064\u3068\u3057\u3066\u6271\u308f\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002
\n(\u5143\u306fRails\u306b\u6a19\u6e96\u3067\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u307e\u3057\u305f\u3002)<\/p>\n
\u4eca\u56de\u306f\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0\u3092\u5b9f\u88c5\u3059\u308b\u306e\u3067\u3001Gemfile\u306b\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u52a0\u3048\u3066gem\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n
(\u4e2d\u7565)\r\ngem 'actionpack-page_caching'\r\n(\u4e2d\u7565)<\/pre>\n
\u8a18\u8ff0\u304c\u5b8c\u4e86\u3057\u305f\u3089\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3067\u3001Gemfile\u306e\u5185\u5bb9\u304b\u3089\u8ffd\u52a0\u3055\u308c\u305fgem\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
bundle install<\/pre>\n
\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u304c\u5b8c\u4e86\u3057\u305f\u3089\u3001\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306b\u4fee\u6b63\u3092\u52a0\u3048\u3066\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u4fdd\u5b58\u5148\u3092\u6307\u5b9a\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
config\/application.rb\u3092\u958b\u3044\u3066\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
(\u4e2d\u7565)\r\nconfig.action_controller.page_cache_directory = \"#{Rails.root.to_s}\/public\/page_cache\"\r\n(\u4e2d\u7565)<\/pre>\n
\u3053\u308c\u3067\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u4fdd\u5b58\u5148\u3092\u8a2d\u5b9a\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n
\u3053\u308c\u3067\u4e00\u901a\u308a\u6e96\u5099\u304c\u3067\u304d\u305f\u306e\u3067\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u3068\u30d3\u30e5\u30fc\u3092\u4f5c\u6210\u3057\u3066\u3001\u4f5c\u6210\u3057\u305f\u30da\u30fc\u30b8\u3092\u307e\u308b\u3054\u3068\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u4fdd\u5b58\u3059\u308b\u8a2d\u5b9a\u3092\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
\u4eca\u56de\u306fgenerate\u30b3\u30de\u30f3\u30c9\u3092\u4f7f\u3063\u3066\u3001\u4e00\u6c17\u306b\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n
\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u306b\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
rails g controller examples test<\/pre>\n
[\u5b9f\u884c\u7d50\u679c]<\/p>\n
create  app\/controllers\/examples_controller.rb\r\n       route  get 'examples\/test'\r\n      invoke  erb\r\n      create    app\/views\/examples\r\n      create    app\/views\/examples\/test.html.erb\r\n      invoke  helper\r\n      create    app\/helpers\/examples_helper.rb\r\n      invoke  assets\r\n      invoke    coffee\r\n      create      app\/assets\/javascripts\/examples.coffee\r\n      invoke    scss\r\n      create      app\/assets\/stylesheets\/examples.scss<\/pre>\n
\u3053\u308c\u3067\u3001\u4eca\u56de\u5fc5\u8981\u306a\u30b3\u30f3\u30c8\u30fc\u30e9\u30fc\u3001\u30d3\u30e5\u30fc\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u4f5c\u6210\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u8a2d\u5b9a\u306f\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306b\u66f8\u3044\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n
app\/controller\/examples_controller.rb\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u4fee\u6b63\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
class ExamplesController < ApplicationController\r\n  caches_page :test\r\nend<\/pre>\n
caches_page<\/strong><\/span>\u306f\u5148\u307b\u3069\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u305fgem\u3067\u8ffd\u52a0\u3055\u308c\u305f\u30d8\u30eb\u30d1\u30fc\u3067test\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u4e38\u3054\u3068\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u4fdd\u5b58\u3059\u308b\u3053\u3068\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u307e\u305f\u3001\u308f\u304b\u308a\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u306bapp\/views\/examples\/test.html.erb\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u4fee\u6b63\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n
<h1>\u3053\u308c\u306f\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u30c6\u30b9\u30c8\u306e\u305f\u3081\u306b\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u4fdd\u5b58\u3055\u308c\u308b\u30c7\u30fc\u30bf\u3067\u3059\u3002<\/h1><\/pre>\n
\u305d\u308c\u3067\u306f\u3001\u3053\u306e\u72b6\u614b\u3067<\/p>\n
rails s<\/pre>\n
\u3068\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u306b\u5165\u529b\u3057\u3066\u30b5\u30fc\u30d0\u30fc\u3092\u8d77\u52d5\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
\u305d\u3057\u3066\u3001\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u8a2d\u5b9a\u3057\u3066\u3042\u308b<\/p>\n
http:\/\/localhost:3000\/examples\/test
\n(\u88dc\u8db3http:\/\/localhost:3000\u306e\u7b87\u6240\u306f\u5404\u81ea\u306e\u958b\u767a\u74b0\u5883\u306b\u3088\u308a\u8aad\u307f\u66ff\u3048\u3066\u304f\u3060\u3055\u3044\u3002)<\/p>\n
\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
[\u5b9f\u884c\u7d50\u679c]
\n\"cache1\"<\/p>\n
\u4e00\u5ea6\u8aad\u307f\u8fbc\u307e\u308c\u308c\u3070\u3001\u6b21\u56de\u4ee5\u964d\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u4fdd\u5b58\u3055\u308c\u305f\u30c7\u30fc\u30bf\u304c\u547c\u3073\u51fa\u3055\u308c\u308b<\/strong><\/span>\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u307e\u305f\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u671f\u9650\u5207\u308c\u306b\u3059\u308b\u5834\u5408\u306f\u30b3\u30f3\u30c8\u30fc\u30e9\u30fc\u306b\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3057\u3066\u304f\u305f\u3056\u3044\u3002<\/p>\n
expire_page action: 'test'<\/pre>\n
expire_page<\/strong><\/span>\u306e\u30d8\u30eb\u30d1\u30fc\u3067\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u6307\u5b9a\u3057\u3066\u3042\u3052\u308b\u3053\u3068\u3067\u7c21\u5358\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u7121\u52b9\u306b\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u30a2\u30af\u30b7\u30e7\u30f3\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0(\u7279\u5b9a\u306e\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b)<\/h2>\n
\u30a2\u30af\u30b7\u30e7\u30f3\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0<\/strong><\/span>\u306f\u30da\u30fc\u30b8\u3092\u4e38\u3054\u3068\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b\u3068\u3044\u3046\u70b9\u3067\u306f\u3001\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0\u3068\u540c\u3058\u3067\u3059\u304c\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u53c2\u7167\u3059\u308b\u524d\u306bActionPack<\/strong><\/span>\u3092\u7d4c\u7531\u3059\u308b\u306e\u3067\u8a8d\u8a3c\u306a\u3069\u3001\u8aad\u307f\u8fbc\u307f\u306e\u524d\u306e\u6bb5\u968e\u3067\u306e\u51e6\u7406\u3092\u7d44\u307f\u8fbc\u3081\u307e\u3059\u3002<\/p>\n
\u3055\u3089\u3063\u3068ActionPack<\/strong><\/span>\u3068\u3044\u3046\u7528\u8a9e\u304c\u3067\u3066\u304d\u307e\u3057\u305f\u304c\u3001\u3053\u308c\u306fRails\u306b\u6a19\u6e96\u3067\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u308b\u3082\u306e\u3067\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u304c\u9001\u3089\u308c\u3066\u304d\u3066\u304b\u3089\u30ec\u30b9\u30dd\u30f3\u30b9\u3092\u8fd4\u3059\u307e\u3067\u306e\u51e6\u7406\u3092\u62c5\u5f53\u3057\u3066\u3044\u308b\u90e8\u5206\u306e\u540d\u79f0\u3067\u3059\u3002<\/p>\n
Rails\u3092\u89e6\u3063\u3066\u3044\u308b\u4eba\u306a\u3089\u3001\u81ea\u7136\u306b\u3044\u3064\u3082\u304a\u4e16\u8a71\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u4f55\u306f\u3068\u3082\u3042\u308c\u3001\u30a2\u30af\u30b7\u30e7\u30f3\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0\u3067\u306f\u524d\u306e\u6bb5\u968e\u3067\u51e6\u7406\u304c\u5b9f\u884c\u3067\u304d\u308b<\/strong><\/span>\u3068\u3044\u3046\u70b9\u3067\u3001\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0\u3068\u306f\u9055\u3044\u307e\u3059\u3002<\/p>\n
\u307e\u305a\u306f\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0\u3068\u540c\u69d8\u306b\u30a2\u30af\u30b7\u30e7\u30f3\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0\u7528\u306egem\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n
Gemfile\u306b\u4ee5\u4e0b\u3092\u8ffd\u52a0\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
gem 'actionpack-action_caching'<\/pre>\n
\u305d\u3057\u3066\u3001\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u306b<\/p>\n
bundle install<\/pre>\n
\u3068\u5165\u529b\u3057\u3066\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u304c\u3067\u304d\u305f\u3089\u3001\u3055\u3063\u305d\u304f\u5b9f\u88c5\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u4fdd\u5b58\u3059\u308b\u306b\u306fcaches_action<\/strong><\/span>\u3068\u3044\u3046\u30d8\u30eb\u30d1\u30fc\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002
\n\u3055\u304d\u307b\u3069\u3068\u540c\u3058\u304f\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306b\u8a18\u8ff0\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n
app\/controller\/examples_controller.rb\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u4fee\u6b63\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
class ExamplesController < ApplicationController\r\n  before_action :set_name, only: [:index]\r\n  caches_page :test\r\n  \r\n  caches_action :index\r\n\r\n  def test\r\n  end\r\n\r\n  def index\r\n  end\r\n\r\n  private\r\n\r\n  def set_name\r\n    @name = 'Samurai Engineer'\r\n  end\r\nend<\/pre>\n
\u4eca\u56de\u306findex\u3068\u3044\u3046\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u8ffd\u52a0\u3057\u307e\u3057\u305f\u3002
\nbefore_action\u3067set_name\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u6307\u5b9a\u3057\u3066\u3001only\u3067index\u30a2\u30af\u30b7\u30e7\u30f3\u306e\u307f\u306b\u9069\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u3053\u306ebefore_action<\/strong><\/span>\u304c\u4f7f\u3048\u308b\u3068\u3044\u3046\u3068\u3053\u308d\u304c\u3001\u30a2\u30af\u30b7\u30e7\u30f3\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0\u306e\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<\/p>\n
\u3053\u306e\u6bb5\u968e\u3067\u306findex\u30a2\u30af\u30b7\u30e7\u30f3\u306b\u5bfe\u3057\u3066\u3001\u307e\u3060\u30d3\u30e5\u30fc\u3084\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u304c\u8a2d\u5b9a\u3057\u3066\u3055\u308c\u3066\u3044\u306a\u3044\u306e\u3067\u3001\u8a2d\u5b9a\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n
config\/route.rb\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u4fee\u6b63\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
Rails.application.routes.draw do\r\n  get 'examples\/test'\r\n  get 'examples\/index'\r\nend<\/pre>\n
\u6b21\u306f\u30d3\u30e5\u30fc\u3067\u3059\u3002
\napp\/views\/examples\/\u4ee5\u4e0b\u306bindex.html.erb\u3092\u8ffd\u52a0\u3057\u3066\u3001\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
<h1><%=@name%><\/h1><\/pre>\n
\u305d\u308c\u3067\u306f\u3001\u3061\u3083\u3093\u3068\u8aad\u307f\u8fbc\u307e\u308c\u308b\u304b\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002
\n\u540c\u69d8\u306brails s\u3067\u30b5\u30fc\u30d0\u30fc\u3092\u7acb\u3061\u4e0a\u3052\u305f\u5f8c\u3001<\/p>\n
http:\/\/localhost:3000\/examples\/index
\n(\u88dc\u8db3http:\/\/localhost:3000\u306e\u7b87\u6240\u306f\u5404\u81ea\u306e\u958b\u767a\u74b0\u5883\u306b\u3088\u308a\u8aad\u307f\u66ff\u3048\u3066\u304f\u3060\u3055\u3044\u3002)<\/p>\n
\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
[\u5b9f\u884c\u7d50\u679c]
\n\"cache2\"<\/p>\n
\u3057\u3063\u304b\u308a\u3068before_action\u3067\u8a2d\u5b9a\u3057\u305f\u5024\u304c\u8aad\u307f\u8fbc\u307e\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u307e\u305f\u3001\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30e5\u540c\u69d8\u306bexpire_page<\/strong><\/span>\u306e\u30d8\u30eb\u30d1\u30fc\u3067\u30ad\u30c3\u30b7\u30e5\u3092\u7121\u52b9\u306b\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0(\u90e8\u5206\u7684\u306b\u30da\u30fc\u30b8\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b)<\/h2>\n
\u6700\u5f8c\u306f\u90e8\u5206\u7684\u306b\u30da\u30fc\u30b8\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n
\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0<\/strong><\/span>\u306f\u3001\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30e5\u3084\u30a2\u30af\u30b7\u30e7\u30f3\u30ad\u30e3\u30c3\u30b7\u30e5\u3068\u9055\u3044Rails\u306b\u6b63\u5f0f\u306b\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u306a\u306e\u3067\u3001\u3044\u3061\u3044\u3061gem\u3092\u65b0\u305f\u306b\u8ffd\u52a0\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n
\u305d\u308c\u3067\u306f\u307e\u305a\u306f\u4eca\u56de\u4f7f\u7528\u3059\u308b\u30e2\u30c7\u30eb\u304b\u3089\u4f5c\u6210\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002
\n\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u306b\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
rails g model Book title:string \r\nrails db:migrate<\/pre>\n
\u3053\u308c\u3067Book\u30e2\u30c7\u30eb\u306e\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u304c\u30d5\u30a1\u30a4\u30eb\u304c\u4f5c\u6210\u3055\u308c\u305f\u5f8c\u306b\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u305d\u306e\u5185\u5bb9\u304c\u53cd\u6620\u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n
\u305d\u308c\u3067\u306f\u3001\u540c\u3058\u6d41\u308c\u3067\u4eca\u56de\u4f7f\u7528\u3059\u308b\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u3068\u30d3\u30e5\u30fc\u3068\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n
\u307e\u305a\u306fapp\/controller\/examples_controller.rb\u3092\u4ee5\u4e0b\u306eitem\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u8ffd\u52a0\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
(\u4e2d\u7565)\r\n  def item\r\n    @books = Book.all\r\n  end\r\n(\u4e2d\u7565)<\/pre>\n
\u3067\u306f\u3001\u6b21\u306b\u30d3\u30e5\u30fc\u3067\u3059\u3002
\napp\/views\/examples\/\u4ee5\u4e0b\u306bitem.html.erb\u3092\u8ffd\u52a0\u3057\u3066\u3001\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
<h1>Book list<\/h1>\r\n<% @books.each do |book| %>\r\n    <table>\r\n      <td> <%= book.title %><\/td>\r\n    <\/table>\r\n<% end %><\/pre>\n
\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u3067\u5b9a\u7fa9\u3057\u305f@books\u3092\u53c2\u7167\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u305d\u308c\u3067\u306f\u3001\u6b21\u306b\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3067\u3059\u3002<\/p>\n
config\/route.rb\u306b\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u8ffd\u52a0\u3057\u3066\u304f\u305f\u3056\u3044\u3002<\/p>\n
get 'examples\/item'<\/pre>\n
\u305d\u3057\u3066\u3001\u6700\u5f8c\u306bBook\u30c6\u30fc\u30d6\u30eb\u306etitle\u30ab\u30e9\u30e0\u306b\u5024\u3092\u3044\u308c\u307e\u3057\u3087\u3046\u3002<\/p>\n
rails console\u3067\u30b3\u30f3\u30bd\u30fc\u30eb\u3092\u8d77\u52d5\u3057\u305f\u5f8c\u3001\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
Book.create(title:\"\u4f8dRuby\u5165\u9580\")\r\nBook.create(title:\"\u4f8dPHP\u5165\u9580\")\r\nBook.create(title:\"\u4f8dPerl\u5165\u9580\")\r\nBook.create(title:\"\u4f8dJava\u5165\u9580\")\r\nBook.create(title:\"\u4f8dPython\u5165\u9580\")<\/pre>\n
\u3053\u308c\u3067\u3001Book\u306etitle\u306b\u5024\u304c\u5165\u308a\u307e\u3057\u305f\u3002<\/p>\n
\u305d\u308c\u3067\u306f\u3001\u90e8\u5206\u7684\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u8a2d\u5b9a\u3092\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n
app\/views\/examples\/item.html.erb\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u4fee\u6b63\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
<h1>Book list<\/h1>\r\n<% @books.each do |book| %>\r\n    <table>\r\n      <% cache book do %>\r\n          <td> <%= book.title %><\/td>\r\n      <% end %>\r\n    <\/table>\r\n<% end %><\/pre>\n
cache\u30e1\u30bd\u30c3\u30c9\u306e\u5f8c\u306b\u540d\u524d\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u4fdd\u5b58\u3055\u308c\u308b\u969b\u306e\u540d\u524d\u3092\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002
\n(\u4eca\u56de\u306fbook\u3067\u3059\u3002)<\/p>\n
\u305d\u308c\u3067\u306f\u3001\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002
\nrails s\u3067\u30b5\u30fc\u30d0\u30fc\u3092\u7acb\u3061\u4e0a\u3052\u305f\u5f8c\u3001<\/p>\n
http:\/\/localhost:3000\/examples\/item
\n(\u88dc\u8db3http:\/\/localhost:3000\u306e\u7b87\u6240\u306f\u5404\u81ea\u306e\u958b\u767a\u74b0\u5883\u306b\u3088\u308a\u8aad\u307f\u66ff\u3048\u3066\u304f\u3060\u3055\u3044\u3002)<\/p>\n
\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
[\u5b9f\u884c\u7d50\u679c]
\n\"cache3\"<\/p>\n
\u59cb\u3081\u306b\u8aad\u307f\u8fbc\u307e\u308c\u305f\u6642\u70b9\u3067\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u5b9f\u884c\u3055\u308c\u3001\u6b21\u56de\u4ee5\u964d\u306fcache\u30e1\u30bd\u30c3\u30c9\u3067\u8a2d\u5b9a\u3057\u305f\u90e8\u5206\u306f\u30ad\u30e3\u30b7\u30e5\u304b\u3089\u53d6\u5f97\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u307e\u305f\u3001render<\/strong><\/span>\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3048\u3070\u30aa\u30d7\u30b7\u30e7\u30f3\u3068\u3057\u3066\u7c21\u5358\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n
app\/views\/examples\/item.html.erb\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u304d\u63db\u3048\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
<%= render :partial => \"book\", cached: true %><\/pre>\n
\u3053\u306e\u3088\u3046\u306bcached:true\u3068\u3059\u308b\u3053\u3068\u3067\u7c21\u5358\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002<\/p>\n
partial\u306b\u306f\u5148\u307b\u3069\u306e\u30b3\u30fc\u30c9\u3092\u5165\u529b\u3057\u307e\u3059\u3002<\/p>\n
app\/views\/examples\/\u4ee5\u4e0b\u306b_book.html.erb\u3092\u4f5c\u6210\u3057\u3066\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u5165\u529b\u3057\u3066\u304f\u305f\u3056\u3044\u3002<\/p>\n
<% @books.each do |book| %>\r\n    <table>\r\n      <% cache book do %>\r\n          <td> <%= book.title %><\/td>\r\n      <% end %>\r\n    <\/table>\r\n<% end %><\/pre>\n
\u3053\u308c\u3067\u3001\u540c\u3058\u7b87\u6240\u304c\u30ad\u30e3\u30c3\u30b7\u30e5\u3068\u3057\u3066\u4fdd\u5b58\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u307e\u305f\u3001\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u30ad\u30e3\u30c3\u30b7\u30e5\u3067\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u7121\u52b9\u306b\u3057\u305f\u3044\u5834\u5408\u306fexpire_fragment<\/strong><\/span>\u306e\u30d8\u30eb\u30d1\u30fc\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n
\u4f8b\u3048\u3070\u3001\u4eca\u56de\u306e\u4f8b\u3060\u3068\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n
(\u4e2d\u7565)\r\n  def item\r\n    @books = Book.all\r\n    expire_fragment(@books)\r\n  end\r\n(\u4e2d\u7565)<\/pre>\n
\u30e2\u30c7\u30eb\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0(\u30e2\u30c7\u30eb\u3067\u30ad\u30e3\u30c3\u30b7\u30e5\u3059\u308b)<\/h2>\n
\u30e2\u30c7\u30eb\u3067\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u5b9f\u88c5\u3059\u308b\u3053\u3068\u3067\u3001\u6bce\u56de\u30c7\u30fc\u30bf\u3092\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304b\u3089\u53d6\u5f97\u3059\u308b\u4ee3\u308f\u308a\u306b\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u4fdd\u5b58\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3092\u7528\u3044\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u30e2\u30c7\u30eb\u3067\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u3059\u308b\u306b\u306ffetch<\/strong><\/span>\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n
\u5148\u307b\u3069\u4f5c\u6210\u3057\u305fapp\/models\/book.rb\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u30af\u30e9\u30b9\u30e1\u30bd\u30c3\u30c9\u3092\u8ffd\u52a0\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
class Book < ApplicationRecord\r\n  def self.cache_all\r\n    Rails.cache.fetch(\"books\"){Book.all}\r\n  end\r\nend<\/pre>\n
\u3053\u308c\u3067\u3001Book.cache_all\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u305f\u3068\u304d\u306b\u3001”books”\u3068\u3044\u3046\u540d\u524d\u3067\u3001Book.all\u306e\u5024\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u3067\u306f\u3001\u3055\u3063\u305d\u304f\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u3067\u5b9f\u88c5\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002
\n\u5148\u307b\u3069\u4f5c\u6210\u3057\u305fitem\u30a2\u30af\u30b7\u30e7\u30f3\u3092\u4fee\u6b63\u3057\u307e\u3059\u3002<\/p>\n
  def item\r\n    @books = Book.cache_all\r\n  end<\/pre>\n
Book.all\u3067\u3001\u76f4\u63a5\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304b\u3089\u5024\u3092\u53d6\u5f97\u3059\u308b\u4ee3\u308f\u308a\u306b\u4f5c\u6210\u3057\u305fBook.cache_all\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u3053\u306e\u3088\u3046\u306b\u8a2d\u5b9a\u3059\u308c\u3070\u3001\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304b\u3089\u30c7\u30fc\u30bf\u3092\u53d6\u5f97\u3057\u305f\u6642\u70b9\u3067\u30ad\u30e3\u30c3\u30b7\u30e5\u306b\u4fdd\u5b58\u3057\u3066\u4f7f\u7528\u3067\u304d\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308bcache\u3092\u524a\u9664\u3059\u308b\u65b9\u6cd5<\/h2>\n
cache\u3092\u524a\u9664\u3059\u308b\u306b\u306f\u3001delete\u3068clear\u306e\u30e1\u30bd\u30c3\u30c9\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
Rails.cache.delete('\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u4fdd\u5b58\u540d')<\/pre>\n
delete\u3067\u306f\u5f15\u6570\u306b\u6e21\u3057\u305f’\u30ad\u30e3\u30c3\u30b7\u30e5\u306e\u4fdd\u5b58\u540d’\u306b\u8a72\u5f53\u3059\u308b\u30ad\u30e3\u30c3\u30b7\u30e5\u304c\u30d4\u30f3\u30dd\u30a4\u30f3\u30c8\u3067\u524a\u9664\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u306a\u306e\u3067\u3001\u7279\u5b9a\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u524a\u9664\u3059\u308b\u5834\u5408<\/strong><\/span>\u306f\u3053\u3061\u3089\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n
\u4f8b\u3048\u3070\u3001\u4eca\u56de\u306e\u4f8b\u3067\u3059\u3068<\/p>\n
Rails.cache.delete('books')<\/pre>\n
\u3068\u8a18\u8ff0\u3059\u308c\u3070\u3001’books’\u3068\u3057\u3066\u4fdd\u5b58\u3055\u308c\u3066\u3044\u308b\u30ad\u30e3\u30c3\u30b7\u30e5\u306f\u524a\u9664\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u4e00\u65b9\u3067<\/p>\n
Rails.cache.clear<\/pre>\n
clear\u3067\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u4fdd\u5b58\u3055\u308c\u305f\u3059\u3079\u3066\u306e\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u524a\u9664\u3057\u307e\u3059\u3002<\/p>\n
\u306a\u306e\u3067\u3001\u4f7f\u7528\u306b\u306f\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n
\u5fc5\u8981\u306a\u30ad\u30e3\u30c3\u30b7\u30e5\u3082\u4e38\u3054\u3068\u524a\u9664\u3055\u308c\u308b\u53ef\u80fd\u6027<\/strong><\/span>\u3082\u3042\u308b\u306e\u3067\u3001\u3088\u304f\u8003\u3048\u3066\u304b\u3089\u4f7f\u7528\u3059\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n
\u307e\u3068\u3081<\/h2>\n
\u3044\u304b\u304c\u3067\u3057\u305f\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n
\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001cache\u306e\u4f7f\u3044\u65b9\u3092\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002
\n
\n\u30fb\u30da\u30fc\u30b8\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0\u306f\u30da\u30fc\u30b8\u5168\u4f53\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3001\u5225\u9014gem\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u304c\u5fc5\u8981<\/br>
\n\u30fb\u30a2\u30af\u30b7\u30e7\u30f3\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0\u306f\u30da\u30fc\u30b8\u5168\u4f53\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3001\u5b9f\u884c\u524d\u306e\u51e6\u7406\u304c\u53ef\u80fd\u3001\u5225\u9014gem\u306e\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u304c\u5fc5\u8981<\/br>
\n\u30fb\u30d5\u30e9\u30b0\u30e1\u30f3\u30c8\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0\u306f\u90e8\u5206\u7684\u306b\u30da\u30fc\u30b8\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3001Rails\u6a19\u6e96<\/br>
\n\u30fb\u30e2\u30c7\u30eb\u30ad\u30e3\u30c3\u30b7\u30f3\u30b0\u306f\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u304b\u3089\u306e\u30c7\u30fc\u30bf\u3092\u30ad\u30e3\u30c3\u30b7\u30e5\u3001Rails\u6a19\u6e96<\/strong><\/p>\n
\u305d\u308c\u305e\u308c\u4f7f\u7528\u76ee\u7684\u3084\u3001\u4f7f\u7528\u3059\u308b\u5834\u5408\u304c\u7570\u306a\u308b\u306e\u3067\u3001\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u4f7f\u7528\u3057\u3066\u9ad8\u901f\u5316\u3092\u5b9f\u88c5\u3059\u308b\u5834\u5408\u306f\u3001\u9069\u6750\u9069\u6240\u3067\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u7d44\u307f\u8fbc\u3093\u3067\u3044\u304f<\/strong><\/span>\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
\u3082\u3057cache\u306e\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u5fd8\u308c\u3066\u3057\u307e\u3063\u305f\u3089\u3053\u306e\u8a18\u4e8b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u306d\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
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