Javascript 将html数据属性添加到简单表单输入

我正在尝试实现一个javascript插件，该插件要求我将data属性：data region id添加到select输入。我试着这样做，你需要的输入是：国家，倒数第三：

<div id="capdiv">
    <h1>People#edit</h1>
    <p>Find me in app/views/people/edit.html.erb</p>
    <%=  simple_form_for @person, url: url_for(action:'update', controller:'people'), update: { success: "response", failure: "error"} do |f| %>
        <div class="clearfix entity-add nested-fields person">
            <div class="dynamic-container">
                <div class="symegrid">
                    <div class="form-inline">
                        <%= f.input :fname, input_html: {class: 'fname form-input form-control fifty'}, label: "First Name" %>
                        <%= f.input :lname, input_html: {class: 'lname form-input form-control fifty'}, label: "Last Name" %>
                    </div>
                    <div class="form-inline">
                        <%= f.input :email, as: :email, input_html: {class: 'email form-input form-control'}, label: "Email" %>
                        <%= f.input :telephone, input_html: {class: 'telephone form-input form-control'}, label: "Telephone" %>
                    </div>
                    <div class="form-inline">
                        <%= f.input :street, input_html: {class: 'street form-input form-control'}, label: "Street" %>
                        <%= f.input :city, input_html: {class: 'city form-input form-control'}, label: "City" %>
                    </div>
                    <div class="form-inline"><%= f.input :country, as: :select, input_html: {data-region-id: "person_state", class: 'country form_control crs-country'}, label: "Country" %></div>
                    <div class="form-inline">
                        <%= f.input :state, as: :select, input_html: { id: "person_state", class: 'state form-control' }, label: "State/Province" %>
                        <%= f.input :zip, input_html: {class: 'zip form-input form-control'}, label: "Zip" %>
                    </div>
                </div>
            </div>
        </div>
    <% end %>
</div>     

如何添加此属性？我在想，在最坏的情况下，我可以在页面加载后使用一些javascript强制加载，但这似乎是不必要的

---

提前感谢。

问题是您不能在Ruby中将数据区域id声明为符号，破折号是无效字符。可以用符号表示字符串，如下所示：

数据区域id=>person\u状态

我认为Rails创建自定义数据属性的方法是嵌套它，如下所示：

---

数据：{region\u id:person\u state}Rails将把下划线转换成破折号

这段时间我没有把数据放在input\u html中，所以很多文章让数据看起来像是一个顶级属性，当然还有其他帮助，但继承和魔力是疯狂的！。我船上的其他人，这就是它需要的样子：。这是为了得到一个与刺激JS/phew一起工作的复选框。

SyntaxError (/home/sam/Dropbox/railsproject/legal/app/views/people/edit.html.erb:20: syntax error, unexpected tLABEL
...t, input_html: {data-region-id: "person_state", class: 'coun...
...                               ^
/home/sam/Dropbox/railsproject/legal/app/views/people/edit.html.erb:20: syntax error, unexpected ',', expecting ')'
...data-region-id: "person_state", class: 'country form_control...
...                               ^
/home/sam/Dropbox/railsproject/legal/app/views/people/edit.html.erb:20: syntax error, unexpected '}', expecting ')'
...ntry form_control crs-country'}, label: "Country" );@output_...
...                               ^):
  app/views/people/edit.html.erb:20: syntax error, unexpected tLABEL
  app/views/people/edit.html.erb:20: syntax error, unexpected ',', expecting ')'
  app/views/people/edit.html.erb:20: syntax error, unexpected '}', expecting ')'