javascript - 将 html 数据属性添加到 simple_forms 输入

Question

我正在尝试实现一个 javascript 插件，该插件要求我将数据属性:data-region-id 添加到选择输入。我已尝试按如下方式执行此操作(您要查找的输入是 :country，倒数第三个):

<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>     

但是，当我尝试加载页面时，出现以下错误消息:

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 ')'

我应该如何添加这个属性？我在想，最坏的情况是，我可以在页面加载后使用一些 javascript 强制执行它，但这似乎没有必要。

提前致谢。

Answer 1

问题是您不能将 data-region-id 声明为 Ruby 中的符号，破折号是无效字符。您可以符号化一个字符串，如下所示:

"data-region-id"=> "person_state"

我相信创建自定义数据属性的“Rails 方式”是嵌套它，如下所示:

data: {region_id: "person_state"} # Rails 会将下划线转换为破折号