{"id":4058,"date":"2014-03-13T09:08:52","date_gmt":"2014-03-13T00:08:52","guid":{"rendered":"http:\/\/www.techscore.com\/blog\/?p=4058"},"modified":"2018-11-14T16:33:51","modified_gmt":"2018-11-14T07:33:51","slug":"rails-4-1-0-actionpack-variants","status":"publish","type":"post","link":"https:\/\/www.techscore.com\/blog\/2014\/03\/13\/rails-4-1-0-actionpack-variants\/","title":{"rendered":"Rails 4.1.0 \u306e ActionPack Variants \u3067\u30c7\u30d0\u30a4\u30b9\u3054\u3068\u306eView\u3092\u8868\u793a\u3059\u308b"},"content":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\u3001\u9234\u6728\u3067\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>Rails 4.1.0 \u3067\u8ffd\u52a0\u3055\u308c\u308b ActionPack Variants \u3092\u4f7f\u3063\u3066\u307f\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>ActionPack Variants \u3068\u306f<\/h2>\n<p>ActionPack Variants \u3068\u306f\u3001\u30c7\u30d0\u30a4\u30b9\u3054\u3068\u306b View \u3092\u5207\u308a\u66ff\u3048\u308b\u305f\u3081\u306b\u5c0e\u5165\u3055\u308c\u305f\u4ed5\u7d44\u307f\u3067\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3067 request.variants \u306b\u9069\u5f53\u306a\u5024\uff08\u4f8b\u3048\u3070 :tablet\uff09\u3092\u8a2d\u5b9a\u3057\u3066\u304a\u304f\u3068\u3001\u305d\u308c\u306b\u5fdc\u3058\u305f View \u30d5\u30a1\u30a4\u30eb\uff08\u4f8b\u3048\u3070 index.html+tablet.erb\uff09\u304c\u4f7f\u7528\u3055\u308c\u308b\u3001\u3068\u3044\u3046\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>\u3053\u308c\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u3001\u30c7\u30d0\u30a4\u30b9\u3054\u3068\u306b\u4f7f\u7528\u3059\u308b View \u30d5\u30a1\u30a4\u30eb\u3092\u5207\u308a\u66ff\u3048\u308b\u3053\u3068\u304c\u7c21\u5358\u306b\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<h2>ActionPack Variants \u3092\u4f7f\u3046<\/h2>\n<p>\u305d\u308c\u3067\u306f ActionPack Variants \u3092\u4f7f\u3063\u3066\u307f\u307e\u3059\u3002<\/p>\n<p>\u3084\u308b\u3053\u3068\u306f\u7c21\u5358\u3067\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3067 request.variants \u306b\u9069\u5f53\u306a\u5024\u3092\u8a2d\u5b9a\u3057\u3001\u305d\u308c\u306b\u5bfe\u5fdc\u3059\u308b View \u30d5\u30a1\u30a4\u30eb\u3092\u6e96\u5099\u3059\u308b\u3060\u3051\u3067\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<h3>Controller<\/h3>\n<p>\u307e\u305a\u306f\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\uff08app\/controllers\/index_controller.rb\uff09<\/p>\n<pre class=\"lang:ruby decode:true\">class IndexController &lt; ApplicationController\r\n\r\n  before_action do\r\n    # \u52d5\u4f5c\u78ba\u8a8d\u3057\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u306b params[:device] \u306e\u5024\u3067\u5206\u5c90\u3059\u308b.\r\n    # \u901a\u5e38\u306f request.user_agent \u306a\u3069\u5024\u3067\u5224\u5b9a\u3059\u308b.\r\n    case params[:device]\r\n      when 'tablet'\r\n        request.variant = :tablet\r\n      when 'mobile'\r\n        request.variant = :mobile\r\n    end\r\n  end\r\n\r\n  def index\r\n  end\r\n\r\nend<\/pre>\n<p>request.variant \u306e\u8a2d\u5b9a\u306f before_action \u306e\u4e2d\u3067\u884c\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30b3\u30e1\u30f3\u30c8\u3067\u66f8\u3044\u3066\u3044\u307e\u3059\u304c\u3001\u52d5\u4f5c\u78ba\u8a8d\u3057\u3084\u3059\u304f\u3059\u308b\u305f\u3081\u306b params[:device] \u306e\u5024\u3067\u5206\u5c90\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u901a\u5e38\u306f User-Agent \u306a\u3069\u306e\u5024\uff08request.user_agent\uff09\u3067\u5206\u5c90\u3059\u308b\u3068\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>&nbsp;<\/p>\n<h3>View<\/h3>\n<p>\u6b21\u306b View \u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n<p>IndexController \u3067 request.variant \u306b\u8a2d\u5b9a\u3059\u308b\u5024\u306b\u5bfe\u5fdc\u3059\u308b\u5206\u3060\u3051\u30d5\u30a1\u30a4\u30eb\u304c\u5fc5\u8981\u3067\u3059\u306e\u3067\u3001\u4ee5\u4e0b\u306e 3 \u3064\u306e\u30d5\u30a1\u30a4\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>app\/views\/index\/index.html.erb (\u30c7\u30d5\u30a9\u30eb\u30c8)\n<pre class=\"lang:default decode:true\">index.html.erb \u3067\u3059\u3002<\/pre>\n<\/li>\n<li>app\/views\/index\/index.html+tablet.erb (request.variant \u304c :tablet \u306e\u5834\u5408)\n<pre class=\"lang:default decode:true\">index.html+tablet.erb \u3067\u3059\u3002<\/pre>\n<\/li>\n<li>app\/views\/index\/index.html+mobile.erb (request.variant \u304c :mobile \u306e\u5834\u5408)\n<pre class=\"lang:default decode:true\">index.html+mobile.erb \u3067\u3059\u3002<\/pre>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0<\/h3>\n<p>\u6700\u5f8c\u306b config\/routes.rb \u3067\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u8a2d\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"lang:ruby decode:true\">Rails.application.routes.draw do\r\n\r\n  root 'index#index'\r\n\r\nend<\/pre>\n<p>&nbsp;<\/p>\n<h3>\u52d5\u4f5c\u78ba\u8a8d<\/h3>\n<p>\u30b5\u30fc\u30d0\u3092\u8d77\u52d5\u3057\u3001\u4ee5\u4e0b\u306e URL \u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3068 View \u30d5\u30a1\u30a4\u30eb\u304c\u5207\u308a\u66ff\u3048\u3089\u308c\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>http:\/\/localhost:3000\/<\/li>\n<li>http:\/\/localhost:3000\/?device=tablet<\/li>\n<li>http:\/\/localhost:3000\/?device=mobile<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u65e5\u672c\u306e\u5834\u5408\u306f\u643a\u5e2f\u30ad\u30e3\u30ea\u30a2\u306b\u3088\u3063\u3066\u8fd4\u3059\u6587\u5b57\u30b3\u30fc\u30c9\u3092\u5909\u3048\u308b\u306a\u3069\u306e\u5bfe\u5fdc\u304c\u5fc5\u8981\u306b\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u73fe\u72b6\u3067\u306f jpmobile \u3092\u4f7f\u3046\u307b\u3046\u304c\u826f\u3044\u3068\u611f\u3058\u307e\u3057\u305f\u304c\u3001Rails \u672c\u4f53\u306b\u30de\u30eb\u30c1\u30c7\u30d0\u30a4\u30b9\u5bfe\u5fdc\u306e\u6a5f\u80fd\u304c\u8ffd\u52a0\u3055\u308c\u305f\u3053\u3068\u306f\u559c\u3070\u3057\u3044\u3053\u3068\u3060\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u3093\u306b\u3061\u306f\u3001\u9234\u6728\u3067\u3059\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>Rails 4.1.0 \u3067\u8ffd\u52a0\u3055\u308c\u308b ActionPack Variants \u3092\u4f7f\u3063\u3066\u307f\u307e\u3059\u3002<br \/><a href=\"https:\/\/www.techscore.com\/blog\/2014\/03\/13\/rails-4-1-0-actionpack-variants\/\">\u7d9a\u304d\u3092\u8aad\u3080...<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[135,18],"tags":[22,134,24],"_links":{"self":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/4058"}],"collection":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/comments?post=4058"}],"version-history":[{"count":5,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/4058\/revisions"}],"predecessor-version":[{"id":4063,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/4058\/revisions\/4063"}],"wp:attachment":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/media?parent=4058"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/categories?post=4058"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/tags?post=4058"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}