- \n
- checkbox\u3068\u306f<\/b><\/li>\n
- \u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5<\/b><\/li>\n<\/ul>\n<\/div>\n
\u3068\u3044\u3046\u57fa\u672c\u7684\u306a\u5185\u5bb9\u304b\u3089\u3001
\n<\/p>\n- \n
- \u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u306b\u521d\u671f\u5024\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5<\/b><\/li>\n
- \u5229\u7528\u898f\u7d04\u306e\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5<\/b><\/li>\n
- \u8907\u6570\u306e\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5<\/b><\/li>\n<\/ul>\n<\/div>\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
checkbox\u306e\u57fa\u672c<\/h2>\n
checkbox\u3068\u306f<\/h3>\n
\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u306fGUI(\u30b0\u30e9\u30d5\u30a3\u30ab\u30eb\u30e6\u30fc\u30b6\u30fc\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9)\u306e1\u3064\u3067\u3001\u30e6\u30fc\u30b6\u30fc\u306b\u3044\u304f\u3064\u304b\u306e\u9805\u76ee\u306e\u4e2d\u304b\u3089\u3001\u4efb\u610f\u306b\u9078\u629e\u3055\u305b\u308b\u3068\u304d\u306b\u4f7f\u3044\u307e\u3059\u3002\u5358\u4e00\u306e\u3082\u306e\u3060\u3051\u3067\u306f\u306a\u304f\u3001\u8907\u6570\u306e\u9805\u76ee\u306b\u3064\u3044\u3066\u8a72\u5f53\u3059\u308b\u304b\u8abf\u3079\u3089\u308c\u308b\u306e\u3067\u3001\u591a\u304f\u306e\u60c5\u5831\u3092\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n
\u3067\u3059\u304c\u3001\u305d\u308c\u305e\u308c\u306e\u9078\u629e\u80a2\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u304b\u306f\u4efb\u610f\u3067\u3042\u3063\u3066\u3001\u5fc5\u305a\u3057\u3082\u9078\u629e\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u306e\u3067\u4f7f\u7528\u306b\u306f\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
\u4e00\u65b9\u3001\u9078\u629e\u7cfb\u306eGUI\u306b\u306f\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u306e\u4ed6\u306b\u30e9\u30b8\u30aa\u30dc\u30c3\u30af\u30b9<\/b>\u3082\u3042\u308a\u307e\u3059\u3002\u30e9\u30b8\u30aa\u30dc\u30c3\u30af\u30b9\u306f\u3044\u304f\u3064\u304b\u306e\u9078\u629e\u80a2\u306e\u4e2d\u304b\u3089\u30011\u3064\u3060\u3051\u9078\u629e\u3059\u308b\u3068\u304d\u306b\u4f7f\u3044\u307e\u3059\u3002<\/p>\n
\u306a\u306e\u3067\u3001\u5fc5\u305a1\u3064\u9078\u629e\u3055\u305b\u305f\u3044\u3068\u304d\u306b\u306f\u30e9\u30b8\u30aa\u30dc\u30c3\u30af\u30b9\u3092\u4f7f\u3044\u3001\u9078\u629e\u3059\u308b\u304b\u3057\u306a\u3044\u306f\u30e6\u30fc\u30b6\u30fc\u306e\u610f\u601d\u306b\u3088\u308b\u3068\u3044\u3046\u5834\u9762\u3067\u306f\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u3092\u4f7f\u3046\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
check_box_tag\u306b\u3066\u5358\u4e00\u306e\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u3092\u4f5c\u6210<\/h3>\n
check_box_tag\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u5358\u4e00\u306e\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u3092\u4f5c\u6210\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u307e\u305a\u3001\u4eca\u56de\u4f7f\u3046\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc(Check)\u3001\u30d3\u30e5\u30fc(example)\u3092\u7528\u610f\u3059\u308b\u305f\u3081\u306b\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
\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u3068\u30d3\u30e5\u30fc\u3092\u4f5c\u6210<\/p>\n
rails g controller Check example<\/pre>\n
[\u5b9f\u884c\u7d50\u679c]<\/p>\n
create app\/controllers\/samurai_controller.rb\r\ncreate app\/controllers\/check_controller.rb\r\n route get 'check\/example'\r\n invoke erb\r\n create app\/views\/check\r\n create app\/views\/check\/example.html.erb\r\n invoke test_unit\r\n create test\/controllers\/check_controller_test.rb\r\n invoke helper\r\n create app\/helpers\/check_helper.rb\r\n invoke test_unit\r\n invoke assets\r\n invoke coffee\r\n create app\/assets\/javascripts\/check.coffee\r\n invoke scss\r\n create app\/assets\/stylesheets\/check.scss<\/pre>\n
\u3053\u308c\u3067\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u30fc\u3068\u30d3\u30e5\u30fc\u3092\u4f5c\u6210\u3067\u304d\u307e\u3057\u305f\u3002\u305d\u308c\u3067\u306f\u3001\u4eca\u56de\u4f5c\u6210\u3057\u305fapp\/views\/check\/example.html.erb\u3092\u958b\u3044\u3066\u3001\u65e2\u5b58\u306e\u30b3\u30fc\u30c9\u3092\u3059\u3079\u3066\u524a\u9664\u3057\u305f\u5f8c\u3001\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
[app\/views\/check\/example.html.erb\u306e\u5165\u529b\u3059\u308b\u5185\u5bb9]<\/p>\n
<h1>\u5358\u4e00\u306e\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u4f8b<\/h1>\r\n<%= check_box_tag :test1 %>\r\n<%= label_tag :test1, \"\u671d\u306f\u82e6\u624b\u3060\" %><\/pre>\n
\u7d9a\u3044\u3066\u3001\u7d50\u679c\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u306brails s\u3068\u5165\u529b\u3057\u3066\u3001\u30b5\u30fc\u30d0\u30fc\u3092\u8d77\u52d5\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u3057\u3066\u3001example.html.erb\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306bapp\/config\/route.rb\u3092\u958b\u3044\u3066\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
[app\/config\/route.rb\u306e\u5185\u5bb9]<\/p>\n
get 'check\/example'<\/pre>\n
\u3068\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306eURL\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u3001example.html.erb\u3092\u958b\u3044\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
http:\/\/localhost:3000\/check\/example<\/p>\n
(\u88dc\u8db3) http:\/\/ocalhost: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
![\"\u5358\u4e00\u30c1\u30a7\u30c3\u30af\"](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/07\/\u5358\u4e00\u30c1\u30a7\u30c3\u30af.png\")
<\/p>\n\u3053\u306e\u3088\u3046\u306b\u5358\u4e00\u306e\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u304c\u8868\u793a\u3055\u308c\u308b\u306e\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002check_box_tag\u306flabel_tag\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u3046\u3053\u3068\u304c\u591a\u3044\u306e\u3067\u3001label_tag\u3082\u30bb\u30c3\u30c8\u3067\u899a\u3048\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
checkbox\u306b\u3066\u5358\u4e00\u306e\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5<\/h3>\n
\u7d9a\u3044\u3066\u306fcheckbox\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u3001\u5358\u4e00\u306e\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u3092\u4f5c\u6210\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002\u307e\u305a\u306f\u3001\u5fc5\u8981\u306a\u30e2\u30c7\u30eb\u3084\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3092\u4f5c\u6210\u3059\u308b\u305f\u3081\u306bscaffold\u3092\u4f7f\u3044\u307e\u3059\u3002scaffold\u304c\u308f\u304b\u3089\u306a\u3044\u4eba\u306f\u4ee5\u4e0b\u306e\u8a18\u4e8b\u3092\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n \n
\n\n\n![](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/06\/rails-scaffold2-150x86.jpg\")
\n <\/div>\n \n\u3010Rails\u5165\u9580\u3011\u521d\u3081\u3066\u306eWeb\u30a2\u30d7\u30ea\u958b\u767a\u306a\u3089scaffold\u304c\u6700\u77ed\uff01<\/div>\n\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/a>\n \n\u305d\u308c\u3067\u306f\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
[scaffold\u3092\u4f7f\u3063\u3066checkbox\u3092\u4f7f\u3046\u305f\u3081\u306e\u6e96\u5099\u3092\u3059\u308b]<\/p>\n
rails g scaffold Samurai name:string checkbox:boolean ingredients:text\r\nrake db:migrate<\/pre>\n
[\u5b9f\u884c\u7d50\u679c]<\/p>\n
create db\/migrate\/20170711113856_create_samurais.rb\r\n create app\/models\/samurai.rb\r\n invoke test_unit\r\n create test\/models\/samurai_test.rb\r\n create test\/fixtures\/samurais.yml\r\n invoke resource_route\r\n route resources :samurais\r\n invoke scaffold_controller\r\n create app\/controllers\/samurais_controller.rb\r\n invoke erb\r\n create app\/views\/samurais\r\n create app\/views\/samurais\/index.html.erb\r\n create app\/views\/samurais\/edit.html.erb\r\n create app\/views\/samurais\/show.html.erb\r\n create app\/views\/samurais\/new.html.erb\r\n create app\/views\/samurais\/_form.html.erb\r\n invoke test_unit\r\n create test\/controllers\/samurais_controller_test.rb\r\n invoke helper\r\n create app\/helpers\/samurais_helper.rb\r\n invoke test_unit\r\n invoke jbuilder\r\n create app\/views\/samurais\/index.json.jbuilder\r\n create app\/views\/samurais\/show.json.jbuilder\r\n create app\/views\/samurais\/_samurai.json.jbuilder\r\n invoke test_unit\r\n create test\/system\/samurais_test.rb\r\n invoke assets\r\n invoke coffee\r\n create app\/assets\/javascripts\/samurais.coffee\r\n invoke scss\r\n create app\/assets\/stylesheets\/samurais.scss\r\n invoke scss\r\n identical app\/assets\/stylesheets\/scaffolds.scss<\/pre>\n
\u3053\u308c\u3067\u3001\u6e96\u5099\u304c\u6574\u3044\u307e\u3057\u305f\u3002\u4eca\u56de\u30e2\u30c7\u30eb\u306e\u30ab\u30e9\u30e0\u3068\u3057\u3066\u3001checkbox\u3060\u3051\u306f\u5c11\u3057\u5bc2\u3057\u3044\u306e\u3067name\u3082\u4f5c\u6210\u3057\u3066\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001ingredients(\u6750\u6599)\u306f\u5f8c\u534a\u306b\u4f7f\u7528\u3057\u307e\u3059\u306e\u3067\u3001\u4eca\u306f\u6c17\u306b\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n
\u305d\u308c\u3067\u306f\u3001\u5b9f\u969b\u306bcheckbox\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u3044\u304f\u306e\u3067\u3001\u4eca\u56de\u4f5c\u6210\u3055\u308c\u305fapp\/views\/samurais\/_form.html.erb\u3092\u958b\u3044\u3066\u3001\u5185\u5bb9\u3092\u3059\u3079\u3066\u524a\u9664\u3057\u305f\u5f8c\u306b\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
[app\/views\/samurais\/_form.html.erb\u306b\u5165\u529b\u3059\u308b\u5185\u5bb9]<\/p>\n
<%= form_with(model: samurai, local: true) do |form| %>\r\n <% if samurai.errors.any? %>\r\n <div id=\"error_explanation\">\r\n <h2><%= pluralize(samurai.errors.count, \"error\") %> prohibited this samurai from being saved:<\/h2>\r\n\r\n <ul>\r\n <% samurai.errors.full_messages.each do |message| %>\r\n <li><%= message %><\/li>\r\n <% end %>\r\n <\/ul>\r\n <\/div>\r\n <% end %>\r\n\r\n <div class=\"field\">\r\n <%= form.label :\u540d\u524d %>\r\n <%= form.text_field :name, id: :samurai_name %>\r\n <\/div>\r\n\r\n <div class=\"field\">\r\n <%= form.label :\u671d\u304c\u82e6\u624b\u3067\u3042\u308b %>\r\n <%= form.check_box :checkbox, id: :samurai_checkbox,:as => :boolean%>\r\n <\/div>\r\n\r\n <div class=\"actions\">\r\n <%= form.submit %>\r\n <\/div>\r\n<% end %><\/pre>\n
\u671d\u304c\u82e6\u624b\u3067\u3042\u308b\u306e\u4e0b\u306eform.check_box\u306e\u90e8\u5206\u3067check_box\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002check.box\u3067\u306f0\u304b1\u304b\u306e\u771f\u507d\u5024\u3092\u8fd4\u3059\u306e\u3067\u3001\u3053\u3053\u3067\u306f:as=>boolean\u3092\u8a2d\u5b9a\u3057\u3066true\/false\u306e\u8ad6\u7406\u5024\u306b\u5909\u66f4\u3057\u3066\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u7d9a\u3044\u3066\u3001\u7d50\u679c\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u306brails s\u3068\u5165\u529b\u3057\u3066\u3001\u30b5\u30fc\u30d0\u30fc\u3092\u8d77\u52d5\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u3057\u3066\u3001_form.html.erb\u306e\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306bapp\/config\/route.rb\u3092\u958b\u3044\u3066\u30eb\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
[app\/config\/route.rb\u306e\u5185\u5bb9]<\/p>\n
resources :samurais<\/pre>\n
\u3068\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u306a\u306e\u3067\u3001\u4ee5\u4e0b\u306eURL\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u3001new.html.erb\u3092\u958b\u3044\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
http:\/\/localhost:3000\/samurais\/new<\/p>\n
![\"form.check_box\"](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/07\/form.check_box.png\")
<\/p>\n\u3053\u306e\u3088\u3046\u306b\u3001check_box\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3063\u3066\u5358\u4e00\u306e\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u3092\u4f5c\u6210\u3067\u304d\u307e\u3057\u305f\u3002\u540d\u524d\u5165\u529b\u3057\u3066\u3001\u767b\u9332\u3092\u62bc\u3057\u3066\u307f\u308b\u3068\u5b9f\u969b\u306b\u30e6\u30fc\u30b6\u30fc\u767b\u9332\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n
check_box_tag\u3068checkbox\u306e\u9055\u3044<\/h3>\n
\u4eca\u56de\u4f7f\u7528\u3057\u305fcheck_box_tag\u30e1\u30bd\u30c3\u30c9\u3068checkbox\u30e1\u30bd\u30c3\u30c9\u3067\u306f\u5c11\u3057\u6319\u52d5\u304c\u9055\u3044\u307e\u3059\u3002<\/b>check_box_tag\u306e\u3007\u3007_tag\u7cfb\u306e\u30d8\u30eb\u30d1\u30fc\u306fform_tag\u30e1\u30bd\u30c3\u30c9\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n
\u4e00\u65b9\u3001\u8a9e\u5c3e\u306b_tag\u306e\u3064\u3044\u3066\u3044\u306a\u3044checkbox\u65b9\u306e\u30d8\u30eb\u30d1\u30fc\u306fform_for\u30e1\u30bd\u30c3\u30c9\u3068\u7d44\u307f\u5408\u308f\u305b\u4f7f\u308f\u308c\u307e\u3059\u3002Rails\u306b\u306fform_tag\u3068form_for\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u4e21\u8005\u306e\u4e3b\u306a\u9055\u3044\u306f\u7279\u5b9a\u306e\u30e2\u30c7\u30eb\u3068\u95a2\u9023\u4ed8\u3044\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3067\u3059\u3002<\/p>\n
form_for\u306e\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u306f\u3001\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3092\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002
\n \n\n\n\n![](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/06\/rails-select-150x86.jpg\")
\n <\/div>\n \n\u3010\u6c38\u4e45\u4fdd\u5b58\u7248\u3011Rails\u306eform_for\u4f7f\u3044\u65b9\uff08select, checkbox, etc.\uff09<\/div>\n\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/a>\n <\/p>\n\u307e\u305f\u3001Rails5.1\u304b\u3089\u306fform_tag\u3068form_for\u306fform_with\u30e1\u30bd\u30c3\u30c9\u306b\u7d71\u5408\u3055\u308c\u307e\u3057\u305f<\/b>\u3002form_with\u306e\u5f15\u6570\u3067\u7279\u5b9a\u306e\u30e2\u30c7\u30eb\u3068\u7d50\u3073\u3064\u3051\u308b\u304b\u3069\u3046\u304b\u3092\u8a2d\u5b9a\u3067\u304d\u308b\u305f\u3081\u3001form_tag\u3068form_for\u306e2\u3064\u306e\u6319\u52d5\u3092\u4f7f\u3044\u5206\u3051\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n
checkbox\u306e\u5b9f\u7528\u7684\u306a\u4f7f\u3044\u65b9<\/h2>\n
\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u306b\u521d\u671f\u5024\u3092\u8a2d\u5b9a\u3059\u308b\u65b9\u6cd5<\/h3>\n
\u305d\u308c\u3067\u306f\u3001\u4eca\u56de\u4f7f\u7528\u3057\u305fexample.html.erb\u306e\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u306b\u521d\u671f\u5024\u3092\u8a2d\u5b9a\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002app\/views\/check\/example.html.erb\u3092\u958b\u3044\u3066\u3001\u65e2\u5b58\u306e\u30b3\u30fc\u30c9\u3092\u3059\u3079\u3066\u524a\u9664\u3057\u305f\u5f8c\u3001\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u5165\u529b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
[app\/views\/check\/example.html.erb\u306e\u5165\u529b\u3059\u308b\u5185\u5bb9]<\/p>\n
<h1>\u5358\u4e00\u306e\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u4f8b<\/h1>\r\n<%= check_box_tag :test1,1,{:checked => \"checked\"} %>\r\n<%= label_tag :test1, \"\u671d\u306f\u82e6\u624b\u3060\" %><\/pre>\n\u7d9a\u3044\u3066\u3001\u7d50\u679c\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u30b3\u30de\u30f3\u30c9\u30d7\u30ed\u30f3\u30d7\u30c8\u306brails s\u3068\u5165\u529b\u3057\u3066\u3001\u30b5\u30fc\u30d0\u30fc\u3092\u8d77\u52d5\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u305d\u3057\u3066\u3001\u4ee5\u4e0b\u306eURL\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
http:\/\/localhost:3000\/check\/example<\/p>\n
![\"\u5358\u4e00\u30c1\u30a7\u30c3\u30afchecked\"](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/07\/\u5358\u4e00\u30c1\u30a7\u30c3\u30afchecked.png\")
<\/p>\n\u3053\u306e\u3088\u3046\u306b\u3001\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u306b\u521d\u671f\u5024\u3092\u8a2d\u5b9a\u3067\u304d\u307e\u3057\u305f\u3002check_box_tag\u3067\u306fname\u3001value\u3001\u521d\u671f\u5024\u3001\u30aa\u30d7\u30b7\u30e7\u30f3\u306e\u9806\u756a\u306b\u5f15\u6570\u3092\u53d6\u308b\u306e\u3067value\u306b1\u3001\u7d9a\u3044\u3066{:checked => “checked”} \u3067\u521d\u671f\u5024\u306b\u30c1\u30a7\u30c3\u30af\u3092\u5165\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u7d9a\u3044\u3066\u3001check_box\u30e1\u30bd\u30c3\u30c9\u3067\u306fapp\/views\/samurais\/_form.html.erb\u5185\u306e<\/p>\n
<%= form.check_box :checkbox, id: :samurai_checkbox,:as => :boolean%><\/pre>\n
\u306e\u90e8\u5206\u3092<\/p>\n
<%= form.check_box :checkbox, id: :samurai_checkbox,:as => :boolean,checked:true%><\/pre>\n
\u306b\u5909\u66f4\u3059\u308b\u3068\u3001\u521d\u671f\u5024\u304c\u8a2d\u5b9a\u3055\u308c\u307e\u3059\u3002\u7d50\u679c\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u4ee5\u4e0b\u306eURL\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
http:\/\/localhost:3000\/samurais\/new<\/p>\n
![\"check\u521d\u671f\u5024\"](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/07\/check\u521d\u671f\u5024.png\")
<\/p>\nchecked:true\u306e\u5f15\u6570\u3067\u521d\u671f\u5024\u3092\u5b9f\u88c5\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306bcheck_box\u30e1\u30bd\u30c3\u30c9\u306b\u3082\u540c\u69d8\u306b\u521d\u671f\u5024\u3092\u8a2d\u5b9a\u3067\u304d\u307e\u3057\u305f\u3002<\/p>\n
\u5229\u7528\u898f\u7d04\u306e\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5<\/h3>\n
\u3053\u3053\u3067\u3001\u3088\u304f\u3042\u308b\u5229\u7528\u898f\u7d04\u306b\u540c\u610f\u3059\u308b\u304b\u3057\u306a\u3044\u304b\u3092\u3053\u308c\u307e\u3067\u52c9\u5f37\u3057\u305f\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u3092\u4f7f\u3063\u3066\u5b9f\u88c5\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n
app\/views\/samurais\/_form.html.erb\u5185\u306e<\/p>\n
<%= form.label :\u671d\u304c\u82e6\u624b\u3067\u3042\u308b %>\r\n <%= form.check_box :checkbox_example, id: :samurai_checkbox_example,:as => :boolean,checked:true %><\/pre>\n
\u306e\u90e8\u5206\u3092<\/p>\n
<%= form.label :\u5229\u7528\u898f\u7d04\u3068\u30d7\u30e9\u30a4\u30d0\u30b7\u30fc\u30dd\u30ea\u30b7\u30fc\u306b\u540c\u610f\u3059\u308b %>\r\n <%= form.check_box :checkbox_example, :as => :boolean, checked:false %><\/pre>\n
\u306b\u5909\u66f4\u3057\u3066\u7d50\u679c\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306b\u4ee5\u4e0b\u306eURL\u306b\u30a2\u30af\u30bb\u30b9\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
http:\/\/localhost:3000\/samurais\/new<\/p>\n
![\"\u5229\u7528\u898f\u7d04\u3068\u30d5\u309a\u30e9\u30a4\u30cf\u3099\u30b7\u30fc\"](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/07\/\u5229\u7528\u898f\u7d04\u3068\u30d5\u309a\u30e9\u30a4\u30cf\u3099\u30b7\u30fc.png\")
<\/p>\n\u30e9\u30d9\u30eb\u306e\u540d\u524d\u3092\u5909\u3048\u305f\u3060\u3051\u3067\u3059\u304c\u3001\u3088\u304f\u3042\u308b\u5229\u7528\u898f\u7d04\u306e\u30c1\u30a7\u30c3\u30af\u30dd\u30c3\u30af\u30b9\u3092\u4f5c\u6210\u3067\u304d\u307e\u3057\u305f\u3002\u307e\u305f\u3001\u540c\u610f\u3057\u306a\u3044\u5834\u5408\u306f\u767b\u9332\u3067\u304d\u306a\u3044\u3088\u3046\u306bvalidation\u3092\u8a2d\u5b9a\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n
validation\u306b\u3064\u3044\u3066\u306f\u3053\u306e\u8a18\u4e8b\u3067\u306f\u8aac\u660e\u3057\u307e\u305b\u3093\u306e\u3067\u3001\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3092\u53c2\u8003\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n \n
\n\n\n![](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2018\/06\/rails-validations-150x86.jpg\")
\n <\/div>\n \n\u3010Rails\u5165\u9580\u3011\u30d0\u30ea\u30c7\u30fc\u30b7\u30e7\u30f3\uff08validations\uff09\u306e\u4f7f\u3044\u65b9\u307e\u3068\u3081<\/div>\n - \u5229\u7528\u898f\u7d04\u306e\u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5<\/b><\/li>\n
- \u30c1\u30a7\u30c3\u30af\u30dc\u30c3\u30af\u30b9\u3092\u4f5c\u6210\u3059\u308b\u65b9\u6cd5<\/b><\/li>\n<\/ul>\n<\/div>\n
![\"multiple\"](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/07\/multiple.png\")
<\/p>\n![](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/07\/image-121-150x86.jpg\")
\n <\/div>\n ![\"OnwerNumber\"](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/07\/OnwerNumber.png\")
<\/p>\n![\"multiple](\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/07\/multiple-choices-for-last.png\")
<\/p>\n