{"id":12472,"date":"2020-12-26T14:26:07","date_gmt":"2020-12-26T05:26:07","guid":{"rendered":"http:\/\/www.code-magagine.com\/?p=12472"},"modified":"2023-05-27T22:42:25","modified_gmt":"2023-05-27T13:42:25","slug":"%e3%80%90ruby-on-rails%e3%80%91%e3%80%8cactionviewhelpers%e3%80%8d%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6","status":"publish","type":"post","link":"http:\/\/www.code-magagine.com\/?p=12472","title":{"rendered":"\u3010Ruby on Rails\u3011\u300cActionView::Helpers\u300d\u3084\u300cFormBuilder\u300d\u306b\u3064\u3044\u3066"},"content":{"rendered":"<h2>ActionView::Helpers\u3068\u306f\uff1f<\/h2>\n<p>form_with\u3068\u304bsubmit\u3068\u304b\u306eRails\u306eview\u3067\u4f7f\u3048\u308b\u30d8\u30eb\u30d1\u30fc\u304c\u30bb\u30c3\u30c8\u306b\u306a\u3063\u3066\u3044\u308b\u30af\u30e9\u30b9\u3067\u3059\u3002<\/p>\n<h2>ActionView::Helpers::FormBuilder\u3068\u306f\uff1f<\/h2>\n<p><span style=\"color: #ff0000;\"><strong>form_with(form_for)\u3067\u6307\u5b9a\u3055\u308c\u305f\u30e2\u30c7\u30eb\u3068\u95a2\u9023\u3065\u3051\u305f\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u751f\u6210\u3059\u308b\u305f\u3081\u306e\u3082\u306e<\/strong><\/span>\u3067\u3059\u3002form_helper\u3068\u30e2\u30c7\u30eb\u9593\u306e\u30d7\u30ed\u30ad\u30b7\u5f79\u3092\u3057\u3066\u304f\u308c\u308b\u3082\u306e\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u7528\u9014<\/h2>\n<p>\u4e00\u822c\u7684\u306b\u306f\u3001\u65e2\u5b58\u306eview\u30d8\u30eb\u30d1\u30fc\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3057\u3066\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u4ed8\u52a0\u3059\u308b\u3088\u3046\u306a\u76ee\u7684\u3067\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<h2>\u4f7f\u3044\u65b9<\/h2>\n<p>\u4f8b\u3048\u3070\u3001\u65e2\u5b58\u306eview\u30d8\u30eb\u30d1\u30fc\u3067\u3042\u308b<span style=\"color: #ff0000;\"><strong>\u300ctext_field\u300d<\/strong><\/span>\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true\">class \u30d3\u30eb\u30c0\u30fc\u540d(ApplicationFormBuilder\u7b49) &lt; ActionView::Helpers::FormBuilder\r\n  def text_field(method, options={})\r\n    return super if options[:no_errors]\r\n    super + errors_message(attribute)\r\n  end\r\n\r\n  #\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u51fa\u529b\u51e6\u7406\r\n  def errors_message(attribute)\r\n    return nil if @object.nil? || (messages = @object.errors.messages[attribute]).nil?\r\n\r\n    lis = messages.collect do |message|\r\n      %{&lt;li&gt;#{@object.errors.full_message(attribute, message)}&lt;\/li&gt;}\r\n    end.join\r\n\r\n    %{&lt;ul class=\"errors\"&gt;#{lis}&lt;\/ul&gt;}.html_safe\r\n  end\r\nend<\/pre>\n<h3>super<\/h3>\n<p>\u65e2\u5b58\u306e\u30d3\u30e5\u30fc\u30d8\u30eb\u30d1\u30fc\u3067\u3042\u308btext_field\u3092\u6307\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>\u30d8\u30eb\u30d1\u30fc\u306e\u914d\u7f6e\u5834\u6240<\/h3>\n<p>\u4e0b\u8a18\u306b\u914d\u7f6e\u3059\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<pre class=\"lang:default decode:true \">app\/helper<\/pre>\n<p>view\u3067\u4f7f\u7528\u3059\u308b\u5834\u5408\u306f\u4e0b\u8a18\u306e\u3088\u3046\u306b\u6307\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true \">&lt;%= form_with @\u30e2\u30c7\u30eb\u540d, builder: \u30d3\u30eb\u30c0\u30fc\u540d do |f| %&gt;\r\n  &lt;%= f.text_field :title %&gt;\r\n  &lt;%= f.submit %&gt;\r\n&lt;% end %&gt;<\/pre>\n","protected":false},"excerpt":{"rendered":"ActionView::Helpers\u3068\u306f\uff1f form_with\u3068\u304bsubmit\u3068\u304b\u306eRails\u306eview\u3067\u4f7f\u3048\u308b\u30d8\u30eb\u30d1\u30fc\u304c\u30bb\u30c3\u30c8\u306b\u306a\u3063\u3066\u3044\u308b\u30af\u30e9\u30b9\u3067\u3059\u3002 ActionView::Helpers::FormBuilder [&hellip;]","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[36],"tags":[],"_links":{"self":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/12472"}],"collection":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=12472"}],"version-history":[{"count":8,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/12472\/revisions"}],"predecessor-version":[{"id":20493,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/12472\/revisions\/20493"}],"wp:attachment":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12472"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12472"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12472"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}