{"id":172,"date":"2018-11-23T18:37:52","date_gmt":"2018-11-23T18:37:52","guid":{"rendered":"https:\/\/oidema-jp.com\/media\/2018-11-23-183752\/"},"modified":"2018-11-23T18:37:52","modified_gmt":"2018-11-23T18:37:52","slug":"2018-11-23-183752","status":"publish","type":"post","link":"https:\/\/oidema-jp.com\/media\/2018-11-23-183752\/","title":{"rendered":"\u3010Rails\u3011Controller\u306e\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0"},"content":{"rendered":"<h2 id=\"i-0\"><a class=\"keyword\" href=\"http:\/\/d.hatena.ne.jp\/keyword\/%A5%EA%A5%D5%A5%A1%A5%AF%A5%BF%A5%EA%A5%F3%A5%B0\">\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0<\/a>\u3068\u306f<\/h2>\n<blockquote>\n<p><a class=\"keyword\" href=\"http:\/\/d.hatena.ne.jp\/keyword\/%A5%EA%A5%D5%A5%A1%A5%AF%A5%BF%A5%EA%A5%F3%A5%B0\">\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0<\/a> (refactoring) \u3068\u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3044\u3066\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5916\u90e8\u304b\u3089\u898b\u305f\u52d5\u4f5c\u3092\u5909\u3048\u305a\u306b<a class=\"keyword\" href=\"http:\/\/d.hatena.ne.jp\/keyword\/%A5%BD%A1%BC%A5%B9%A5%B3%A1%BC%A5%C9\">\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9<\/a>\u306e\u5185\u90e8\u69cb\u9020\u3092\u6574\u7406\u3059\u308b\u3053\u3068\u3067\u3042\u308b\u3002<\/p>\n<\/blockquote>\n<p><a href=\"https:\/\/ja.wikipedia.org\/wiki\/%E3%83%AA%E3%83%95%E3%82%A1%E3%82%AF%E3%82%BF%E3%83%AA%E3%83%B3%E3%82%B0_(%E3%83%97%E3%83%AD%E3%82%B0%E3%83%A9%E3%83%9F%E3%83%B3%E3%82%B0\">wiki~\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0<\/a><\/p>\n<p>\u306a\u3093\u306e\u305f\u3081\u306b\u3084\u308b\u306e\u304b\uff08\u5c0f\u50e7\u4e3b\u89b3\uff09<\/p>\n<ul>\n<li>\u4ed6\u306e\u4eba\u304c\u898b\u3066\u3082\u308f\u304b\u308a\u3084\u3059\u304f\u3059\u308b\u305f\u3081\uff08\u898b\u901a\u3057\u3092\u3088\u304f\u3059\u308b\uff09<\/li>\n<li>\u30b3\u30fc\u30c9\u3092\u518d\u5229\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u305f\u3081<\/li>\n<\/ul>\n<h3 id=\"i-1\">Rail\u306b\u304a\u3051\u308b\u5177\u4f53\u7684\u306a<a class=\"keyword\" href=\"http:\/\/d.hatena.ne.jp\/keyword\/%A5%EA%A5%D5%A5%A1%A5%AF%A5%BF%A5%EA%A5%F3%A5%B0\">\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0<\/a>\uff08Controller\uff09<\/h3>\n<p>\u4e0b\u8a18\u3001\u3088\u304f\u898b\u308bController\u306e\u8a18\u8ff0\u3002<\/p>\n<p><b>app\/controllers\/products_controller.rb<\/b><\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\"><span class=\"synPreProc\">class<\/span> <span class=\"synType\">ProductsController<\/span> &lt; <span class=\"synType\">ApplicationController<\/span>\nbefore_action <span class=\"synConstant\">:set_cart<\/span>\n~ ~ ~\n<span class=\"synStatement\">private<\/span>\n<span class=\"synPreProc\">def<\/span> <span class=\"synIdentifier\">set_cart<\/span>\n<span class=\"synIdentifier\">@cart<\/span> = <span class=\"synType\">Cart<\/span>.find_by(<span class=\"synConstant\">id<\/span>: session[<span class=\"synConstant\">:cart_id<\/span>])\n<span class=\"synStatement\">if<\/span> <span class=\"synIdentifier\">@cart<\/span>.nil?\n<span class=\"synIdentifier\">@cart<\/span> = <span class=\"synType\">Cart<\/span>.create\nsession[<span class=\"synConstant\">:cart_id<\/span>] = <span class=\"synIdentifier\">@cart<\/span>.id\n<span class=\"synStatement\">end<\/span>\n<span class=\"synPreProc\">end<\/span>\n<span class=\"synPreProc\">end<\/span>\n<\/pre>\n<p><b>app\/controllers\/top_controller.rb<\/b><\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\"><span class=\"synPreProc\">class<\/span> <span class=\"synType\">TopController<\/span> &lt; <span class=\"synType\">ApplicationController<\/span>\nbefore_action <span class=\"synConstant\">:set_cart<\/span>\n~ ~ ~\n<span class=\"synStatement\">private<\/span>\n<span class=\"synPreProc\">def<\/span> <span class=\"synIdentifier\">set_cart<\/span>\n<span class=\"synIdentifier\">@cart<\/span> = <span class=\"synType\">Cart<\/span>.find_by(<span class=\"synConstant\">id<\/span>: session[<span class=\"synConstant\">:cart_id<\/span>])\n<span class=\"synStatement\">if<\/span> <span class=\"synIdentifier\">@cart<\/span>.nil?\n<span class=\"synIdentifier\">@cart<\/span> = <span class=\"synType\">Cart<\/span>.create\nsession[<span class=\"synConstant\">:cart_id<\/span>] = <span class=\"synIdentifier\">@cart<\/span>.id\n<span class=\"synStatement\">end<\/span>\n<span class=\"synPreProc\">end<\/span>\n<span class=\"synPreProc\">end<\/span>\n<\/pre>\n<p>\u4e0a\u8a18\uff12\u3064\u306e\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u3067\u306f\u5168\u304f\u540c\u3058<code>set_cart<\/code>\u3068\u3044\u3046\u30e1\u30bd\u30c3\u30c9\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u304a\u308a\u3001\u3069\u3061\u3089\u3082\u30a4\u30f3\u30b9\u30e9\u30f3\u30b9\u306b\u30ab\u30fc\u30c8\u306e<a class=\"keyword\" href=\"http:\/\/d.hatena.ne.jp\/keyword\/%A5%A4%A5%F3%A5%B9%A5%BF%A5%F3%A5%B9\">\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9<\/a>\u3092\u5dee\u3057\u8fbc\u3093\u3067\u3044\u308b\u3002<\/p>\n<p>\u3055\u3089\u306b<code>set_cart<\/code>\u306f\u4e0a\u8a18\u306e<a class=\"keyword\" href=\"http:\/\/d.hatena.ne.jp\/keyword\/%A5%A4%A5%F3%A5%B9%A5%BF%A5%F3%A5%B9\">\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9<\/a>\u4ee5\u5916\u3067\u3082\u4f7f\u7528\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3067\u304d\u308c\u3070\u90e8\u54c1\u5316\u3057\u3066\u304a\u304d\u305f\u3044\u3002<\/p>\n<p>\u305d\u3093\u306a\u6642\u306b\u306f<code>concerns<\/code>\u306b\u51e6\u7406\u3092\u5207\u308a\u51fa\u3059\u306e\u304c\u826f\u3055\u3052\u3002<\/p>\n<p>\u3067\u306f\u65e9\u901f<a class=\"keyword\" href=\"http:\/\/d.hatena.ne.jp\/keyword\/%A5%EA%A5%D5%A5%A1%A5%AF%A5%BF%A5%EA%A5%F3%A5%B0\">\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0<\/a>\u3059\u308b\u3002<\/p>\n<p><b>app\/controllers\/concerns\/current_<a class=\"keyword\" href=\"http:\/\/d.hatena.ne.jp\/keyword\/cart\">cart<\/a>.rb<\/b>  \u2190\u3053\u308c\u3092\u65b0\u305f\u306b\u4f5c\u308b<\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\"><span class=\"synPreProc\">module<\/span> <span class=\"synType\">CurrentCart<\/span>\n<span class=\"synPreProc\">extend<\/span> <span class=\"synType\">ActiveSupport<\/span>::<span class=\"synType\">Concern<\/span>\n<span class=\"synStatement\">private<\/span>\n<span class=\"synPreProc\">def<\/span> <span class=\"synIdentifier\">set_cart<\/span>\n<span class=\"synIdentifier\">@cart<\/span> = <span class=\"synType\">Cart<\/span>.find_by(<span class=\"synConstant\">id<\/span>: session[<span class=\"synConstant\">:cart_id<\/span>])\n<span class=\"synStatement\">if<\/span> <span class=\"synIdentifier\">@cart<\/span>.nil?\n<span class=\"synIdentifier\">@cart<\/span> = <span class=\"synType\">Cart<\/span>.create\nsession[<span class=\"synConstant\">:cart_id<\/span>] = <span class=\"synIdentifier\">@cart<\/span>.id\n<span class=\"synStatement\">end<\/span>\n<span class=\"synPreProc\">end<\/span>\n<span class=\"synPreProc\">end<\/span>\n<\/pre>\n<p><a href=\"https:\/\/api.rubyonrails.org\/classes\/ActiveSupport\/Concern.html\">\u516c\u5f0f\u30ec\u30d5\u30a1\u30ec\u30f3\u30b9<\/a><\/p>\n<p><a href=\"https:\/\/qiita.com\/shizuma\/items\/ae6ecb85615f74444693\">\u898b\u3084\u3059\u3044\u3068\u601d\u3063\u305f\u3068\u3053\u308d<\/a><\/p>\n<p><b>app\/controllers\/products_controller.rb<\/b><\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\"><span class=\"synPreProc\">class<\/span> <span class=\"synType\">ProductsController<\/span> &lt; <span class=\"synType\">ApplicationController<\/span>\n<span class=\"synPreProc\">include<\/span> <span class=\"synType\">CurrentCart<\/span>\nbefore_action <span class=\"synConstant\">:set_cart<\/span>\n<span class=\"synPreProc\">end<\/span>\n<\/pre>\n<p><b>app\/controllers\/top_controller.rb<\/b><\/p>\n<pre class=\"code lang-ruby\" data-lang=\"ruby\" data-unlink=\"\"><span class=\"synPreProc\">class<\/span> <span class=\"synType\">TopController<\/span> &lt; <span class=\"synType\">ApplicationController<\/span>\n<span class=\"synPreProc\">include<\/span> <span class=\"synType\">CurrentCart<\/span>\nbefore_action <span class=\"synConstant\">:set_cart<\/span>\n<span class=\"synPreProc\">end<\/span>\n<\/pre>\n<p>\u4ee5\u4e0a\u3067\u5171<a class=\"keyword\" href=\"http:\/\/d.hatena.ne.jp\/keyword\/%C4%CC%B2%BD\">\u901a\u5316<\/a>\u5b8c\u4e86\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0\u3068\u306f \u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0 (refactoring) \u3068\u306f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u304a\u3044\u3066\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5916\u90e8\u304b\u3089\u898b\u305f\u52d5\u4f5c\u3092\u5909\u3048\u305a\u306b\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306e\u5185\u90e8\u69cb\u9020\u3092\u6574\u7406\u3059\u308b\u3053\u3068\u3067\u3042\u308b\u3002 wiki~\u30ea\u30d5\u30a1\u30af\u30bf\u30ea\u30f3\u30b0 &#8230; <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"om_disable_all_campaigns":false,"footnotes":""},"categories":[21],"tags":[],"class_list":{"0":"post-172","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-rails","7":"entry","8":"nothumb"},"acf":[],"aioseo_notices":[],"mb":[],"mfb_rest_fields":["title","aioseo_notices"],"_links":{"self":[{"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/posts\/172","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/comments?post=172"}],"version-history":[{"count":0,"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/posts\/172\/revisions"}],"wp:attachment":[{"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/media?parent=172"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/categories?post=172"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/oidema-jp.com\/media\/wp-json\/wp\/v2\/tags?post=172"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}