{"id":1868,"date":"2013-01-29T10:37:47","date_gmt":"2013-01-29T01:37:47","guid":{"rendered":"http:\/\/www.techscore.com\/blog\/?p=1868"},"modified":"2018-11-14T16:33:56","modified_gmt":"2018-11-14T07:33:56","slug":"rails4-%e3%81%ae-strong-parameters-%e3%81%a7%e3%83%aa%e3%82%af%e3%82%a8%e3%82%b9%e3%83%88%e3%83%91%e3%83%a9%e3%83%a1%e3%83%bc%e3%82%bf%e3%82%92%e6%a4%9c%e8%a8%bc%e3%81%99%e3%82%8b","status":"publish","type":"post","link":"https:\/\/www.techscore.com\/blog\/2013\/01\/29\/rails4-%e3%81%ae-strong-parameters-%e3%81%a7%e3%83%aa%e3%82%af%e3%82%a8%e3%82%b9%e3%83%88%e3%83%91%e3%83%a9%e3%83%a1%e3%83%bc%e3%82%bf%e3%82%92%e6%a4%9c%e8%a8%bc%e3%81%99%e3%82%8b\/","title":{"rendered":"Rails4 \u306e Strong Parameters \u3067\u30ea\u30af\u30a8\u30b9\u30c8\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u691c\u8a3c\u3059\u308b"},"content":{"rendered":"

\u3053\u3093\u306b\u3061\u306f\u3001\u9234\u6728\u3067\u3059\u3002<\/p>\n

 <\/p>\n

Rails4 \u306e\u65b0\u6a5f\u80fd\u3067\u3042\u308b Strong Parameters \u3092\u8a66\u3057\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n

 <\/p>\n

\u203b2013\/10\/03 TECHSCORE \u672c\u4f53\u306e\u8a18\u4e8b\u306b\u306a\u308a\u307e\u3057\u305f\uff01\u300cStrongParameters | TECHSCORE(\u30c6\u30c3\u30af\u30b9\u30b3\u30a2)<\/a>\u300d<\/p>\n

 <\/p>\n

Strong Parameters \u306f\u500b\u5225\u306e Gem \u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3057\u305f\u304c\u3001Rails4 \u306e\u30b3\u30a2\u6a5f\u80fd\u3068\u3057\u3066\u53d6\u308a\u8fbc\u307e\u308c\u307e\u3057\u305f\u3002<\/p>\n

Strong Parameters \u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30db\u30ef\u30a4\u30c8\u30ea\u30b9\u30c8\u5f62\u5f0f\u3067\u30ea\u30af\u30a8\u30b9\u30c8\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u691c\u8a3c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

 <\/p>\n

Rails3 \u3067\u306f Mass-assignment \uff08\u30e2\u30c7\u30eb\u306e\u8907\u6570\u5c5e\u6027\u3078\u306e\u4e00\u62ec\u4ee3\u5165\uff09\u3092\u9632\u3050\u305f\u3081\u306b attr_accessible \u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3057\u305f\u304c\u3001Rails4 \u304b\u3089\u306f Strong Parameters \u3092\u7528\u3044\u3066 Mass-assignment \u306b\u5bfe\u5fdc\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

 <\/p>\n

Strong Parameters \u3092\u8a66\u3059<\/h2>\n

Rails4 beta \u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5\u306f\u300cHello Rails4 beta<\/a>\u300d\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>\n

\u3053\u3053\u3067\u306f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306f\u4f5c\u6210\u6e08\u307f\u3068\u3057\u3066\u8a71\u3092\u9032\u3081\u307e\u3059\u3002<\/p>\n

scaffold \u3067\u30b3\u30fc\u30c9\u751f\u6210<\/h3>\n

\u307e\u305a\u306f scaffold \u3067 User \u30e2\u30c7\u30eb\u3068\u95a2\u9023\u30d5\u30a1\u30a4\u30eb\u4e00\u5f0f\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002<\/p>\n

rails generate scaffold user name:string email:string<\/pre>\n
\u5b9f\u306f scaffold \u3092\u4f7f\u7528\u3059\u308b\u3068\u3001Strong Parameters \u306e\u6a5f\u80fd\u3092\u4f7f\u7528\u3057\u305f\u30b3\u30fc\u30c9\u304c\u751f\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9 (app\/controllers\/users_controller.rb) \u3092\u958b\u304f\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\uff08Strong Parameters \u306b\u95a2\u4fc2\u3059\u308b\u90e8\u5206\u4ee5\u5916\u306f\u7701\u7565\u3057\u3066\u3044\u307e\u3059\uff09\u3002<\/p>\n
class UsersController < ApplicationController\r\n  ...\r\n  # POST \/users\r\n  # POST \/users.json\r\n  def create\r\n    @user = User.new(user_params)\r\n    ...\r\n  end\r\n  ...\r\n  private\r\n  ...\r\n    # Never trust parameters from the scary internet, only allow the white list through.\r\n    def user_params\r\n      params.require(:user).permit(:name, :email)\r\n    end\r\nend<\/pre>\n
user_params \u3068\u3044\u3046 private \u30e1\u30bd\u30c3\u30c9\u306e\u4e2d\u306b\u6ce8\u76ee\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
\u300cparams.require(:user).permit(:name, :email)\u300d\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u3053\u306e\u30b3\u30fc\u30c9\u306f\u300cparams \u304c :user \u3068\u3044\u3046\u30ad\u30fc\u3092\u6301\u3061\u3001params[:user] \u306f :name \u53ca\u3073 :email \u3068\u3044\u3046\u30ad\u30fc\u3092\u6301\u3064\u30cf\u30c3\u30b7\u30e5\u3067\u3042\u308b\u3053\u3068\u300d\u3092\u691c\u8a3c\u3057\u307e\u3059\u3002<\/p>\n
\u4f8b\u3048\u3070\u3001params[:user] \u304c {:name => 'taro', :email => 'taro@example.com'} \u306e\u3088\u3046\u306a\u30cf\u30c3\u30b7\u30e5\u3067\u3042\u308b\u5834\u5408\u306b\u691c\u8a3c OK \u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n
\u00a0\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u53ca\u3073\u30b5\u30fc\u30d0\u8d77\u52d5<\/h3>\n
\u6b21\u306b\u30de\u30a4\u30b0\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n
rake db:migrate<\/pre>\n
\u3042\u3068\u3067\u30d6\u30e9\u30a6\u30b6\u304b\u3089\u30a2\u30af\u30bb\u30b9\u3057\u3066\u52d5\u4f5c\u78ba\u8a8d\u3059\u308b\u306e\u3067\u3001\u30b5\u30fc\u30d0\u3092\u8d77\u52d5\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n
rails server<\/pre>\n
\u00a0\u30d6\u30e9\u30a6\u30b6\u3067\u52d5\u4f5c\u78ba\u8a8d<\/h3>\n
\u305d\u308c\u3067\u306f\u300chttp:\/\/localhost:3000\/users\u300d\u306b\u30a2\u30af\u30bb\u30b9\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n
\u30e6\u30fc\u30b6\u4e00\u89a7\u753b\u9762\u3067\u3059\u304c\u3001\u307e\u3060\u30c7\u30fc\u30bf\u304c\u767b\u9332\u3055\u308c\u3066\u3044\u306a\u3044\u306e\u3067\u4e00\u89a7\u306b\u306f\u4f55\u3082\u8868\u793a\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n
\"rails-strong-parameters-01\"<\/a><\/p>\n
\u30e6\u30fc\u30b6\u767b\u9332\u753b\u9762\u306b\u79fb\u52d5\u3057\u3001\u9069\u5f53\u306a\u5024\u3092\u5165\u529b\u3057\u3066\u3001\u767b\u9332\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
\"rails-strong-parameters-02\"<\/a><\/p>\n
\u51e6\u7406\u306b\u6210\u529f\u3057\u307e\u3057\u305f\u3002<\/p>\n
\"rails-strong-parameters-03\"<\/a><\/p>\n
 <\/p>\n
\u305d\u308c\u3067\u306f\u3001\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306e\u30b3\u30fc\u30c9\u3092\u4fee\u6b63\u3057\u3001\u4eca\u307e\u3067\u306e\u3088\u3046\u306b\uff08Rails3 \u6642\u4ee3\u306e\u3088\u3046\u306b\uff09params[:user] \u3092\u305d\u306e\u307e\u307e\u8fd4\u3059\u3088\u3046\u306b\u4fee\u6b63\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n
    # Never trust parameters from the scary internet, only allow the white list through.\r\n    def user_params\r\n      # \u8a66\u306b\u5909\u66f4\u3059\u308b.\r\n      # params.require(:user).permit(:name, :email)\r\n      params[:user]\r\n    end<\/pre>\n
\u3082\u3046\u4e00\u5ea6\u3001\u30e6\u30fc\u30b6\u767b\u9332\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
\"rails-strong-parameters-04\"<\/a><\/p>\n
\u4eca\u5ea6\u306f\u30a8\u30e9\u30fc\u3068\u306a\u308a\u307e\u3057\u305f\u3002Rails3 \u306e\u9803\u3068\u6bd4\u8f03\u3057\u3066\u30a8\u30e9\u30fc\u753b\u9762\u304c\u7dba\u9e97\u306b\u306a\u308a\u307e\u3057\u305f\u306d\u3002<\/p>\n
\"rails-strong-parameters-05\"<\/a><\/p>\n
\u3053\u308c\u304c Strong Parameters \u306e\u52d5\u4f5c\u3067\u3059\u3002<\/p>\n
\u8a31\u53ef\u3059\u308b\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u30db\u30ef\u30a4\u30c8\u30ea\u30b9\u30c8\u5f62\u5f0f\u3067\u6e96\u5099\u3057\u3066\u304a\u304d\u3001\u305d\u308c\u3092\u57fa\u306b\u691c\u8a3c\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n
\u691c\u8a3c\u30a8\u30e9\u30fc\u306e\u5834\u5408\u306f\u4f8b\u5916 ActiveModel::ForbiddenAttributesError \u304c raise \u3055\u308c\u307e\u3059\u3002<\/p>\n
 <\/p>\n
\u8a31\u53ef\u3057\u3066\u3044\u306a\u3044\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u6271\u3044<\/h2>\n
\u8a31\u53ef\u3057\u3066\u3044\u306a\u3044\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u6e21\u3055\u308c\u305f\u5834\u5408\u306f\u3069\u3046\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n
\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u7121\u8996\u3055\u308c\u308b<\/h3>\n
\u8a66\u306b user_params \u306e\u5185\u5bb9\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u4fee\u6b63\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n
    # Never trust parameters from the scary internet, only allow the white list through.\r\n    def user_params\r\n      # \u8a66\u306b :email \u306e\u6307\u5b9a\u3092\u6d88\u3059.\r\n      # params.require(:user).permit(:name, :email)\r\n      params.require(:user).permit(:name)\r\n    end<\/pre>\n
\u3053\u306e\u72b6\u614b\u3067\u518d\u5ea6\u30e6\u30fc\u30b6\u767b\u9332\u3092\u884c\u3046\u3068\u3001\u30ea\u30af\u30a8\u30b9\u30c8\u30d1\u30e9\u30e1\u30fc\u30bf\u3068\u3057\u3066\u540d\u524d\uff08name\uff09\u3068\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\uff08email\uff09\u304c\u6e21\u3055\u308c\u307e\u3059\u304c\u3001\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\uff08email\uff09\u306f\u7121\u8996\u3055\u308c\u307e\u3059\u3002<\/p>\n
\u30ed\u30b0\u3092\u78ba\u8a8d\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30e1\u30c3\u30bb\u30fc\u30b8\u304c\u51fa\u529b\u3055\u308c\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n
Unpermitted parameters: email<\/pre>\n
\u00a0\u8a31\u53ef\u3057\u306a\u3044\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u6e21\u3055\u308c\u305f\u5834\u5408\u306b\u4f8b\u5916\u3092\u767a\u751f\u3055\u305b\u308b<\/h3>\n
\u8a31\u53ef\u3057\u306a\u3044\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u6e21\u3055\u308c\u305f\u5834\u5408\u306e\u52d5\u4f5c\u306f config\/application.rb \u3067\u5909\u66f4\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
\u8a66\u306b\u4f8b\u5916\u3092\u767a\u751f\u3055\u305b\u308b\u3088\u3046\u306b\u5909\u66f4\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n
# \u30c7\u30d5\u30a9\u30eb\u30c8\u306f :log \u3067, \u8a31\u53ef\u3055\u308c\u3066\u3044\u306a\u3044\u30d1\u30e9\u30e1\u30fc\u30bf\u306f\u7121\u8996\u3055\u308c\u305f\u3046\u3048\u3067\u30ed\u30b0\u51fa\u529b\u3055\u308c\u307e\u3059.\r\nconfig.action_controller.action_on_unpermitted_parameters = :raise<\/pre>\n
\u3053\u306e\u72b6\u614b\u3067\u518d\u3073\u30e6\u30fc\u30b6\u767b\u9332\u3092\u884c\u3046\u3068\uff08\u30ea\u30af\u30a8\u30b9\u30c8\u30d1\u30e9\u30e1\u30fc\u30bf\u306b name \u3068 email \u304c\u6e21\u3055\u308c\u308b\u3068\uff09\u3001ActionController::UnpermittedParameters \u3068\u3044\u3046\u4f8b\u5916\u304c raise \u3055\u308c\u307e\u3057\u305f\u3002<\/p>\n
 <\/p>\n
\u30cd\u30b9\u30c8\u3057\u305f\u30d1\u30e9\u30e1\u30fc\u30bf<\/h2>\n
Strong Parameters \u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/a>\u3092\u8aad\u3080\u3068\u3001permit \u30e1\u30bd\u30c3\u30c9\u306e\u5f15\u6570\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u3001\u30cd\u30b9\u30c8\u3057\u305f\u30d1\u30e9\u30e1\u30fc\u30bf\u306b\u5bfe\u5fdc\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n
params.permit(:name,\r\n              {:emails => []},\r\n              :friends => [:name,\r\n                           {:family => [:name]}])<\/pre>\n
 <\/p>\n
\u307e\u3068\u3081<\/h2>\n
Rails3 \u306e attr_accessible \u306f\u3001\u753b\u9762\u3054\u3068\u306b\u53d7\u3051\u4ed8\u3051\u308b\u30d1\u30e9\u30e1\u30fc\u30bf\u304c\u7570\u306a\u308b\u5834\u5408\u306b\u30e2\u30c7\u30eb\u306e\u30b3\u30fc\u30c9\u304c\u81a8\u308c\u4e0a\u304c\u3063\u3066\u3057\u307e\u3046\u3068\u3044\u3046\u554f\u984c\u304c\u3042\u308a\u307e\u3057\u305f\u3002<\/p>\n
Rails4 \u3067\u30b3\u30a2\u6a5f\u80fd\u3068\u3057\u3066\u53d6\u308a\u8fbc\u307e\u308c\u305f Strong Parameters \u3092\u7528\u3044\u308b\u3068\u3001\u305d\u306e\u3042\u305f\u308a\u306e\u30b3\u30fc\u30c9\u304c\u30b9\u30c3\u30ad\u30ea\u3059\u308b\u3053\u3068\u304c\u5206\u304b\u308a\u307e\u3057\u305f\u3002<\/p>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
\u3053\u3093\u306b\u3061\u306f\u3001\u9234\u6728\u3067\u3059\u3002<\/p>\n
 <\/p>\n
Rails4 \u306e\u65b0\u6a5f\u80fd\u3067\u3042\u308b Strong Parameters \u3092\u8a66\u3057\u3066\u307f\u307e\u3057\u305f\u3002
\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":[18],"tags":[22],"_links":{"self":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/1868"}],"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=1868"}],"version-history":[{"count":1,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/1868\/revisions"}],"predecessor-version":[{"id":17967,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/1868\/revisions\/17967"}],"wp:attachment":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/media?parent=1868"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/categories?post=1868"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/tags?post=1868"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}