表单选择中的 Ruby on Rails 禁用字段不起作用

Question

<%= f.select :minutes, options_for_select([['1 hour', 60], ['1 hour and a half', 90], ['2 hours', 120]][0..(@minutes_to_schedule/30-2)], 60), {}, {disabled: true} %>

我检查了表单助手 API，但尽管遵循了我的选项，但我的选项仍然没有被禁用，有什么我忽略的吗？我看了看其他堆积的帖子，似乎没有做错什么

   <%= form_for(@session_date, html: {class: 'no_custom'}) do |f| %>

      <%= f.hidden_field :student_id, value: @student.id %>
      <%= hidden_field_tag 'from', schedule_student_path(id: @student.id) %>          
      <div id="appointment_display"></div>         
      <input id="appointment_at" type="datetime-local"  name="appointment[at]" step="900" min= "some_time" max="max_time" required="required" placeholder="Use Chrome!" style="width: auto; display: none;"/>
      <br/>
      <div id="appointment_location_display"></div> 
      <br/>
      <%= f.select :minutes, options_for_select(@appointment_time_options, 60) %>
      <br/> 
      <%= f.collection_select(:location_id, Location.order('city, state, address'), :id, :name, {}, {class: 'dont_display'}) %>
      <%= f.submit 'Create Appointment' %>
      <br/>

    <% end %>    

Answer 1

disabled: true 应该是第四个参数

检查下面的定义

options_from_collection_for_select(collection, value_method, text_method, selected = nil)

所以，正确的做法...

<%= f.select : minutes, options_for_select( ([['1 hour', 60], ['1 hour and a half', 90], ['2 hours', 120]]), {}, {}, { disabled: true } )%>

Answer 2

这看起来是正确的。

当我复制/粘贴这个时：

<%= f.select : minutes, options_for_select([['1 hour', 60], ['1 hour and a half', 90], ['2 hours', 120]]), {}, { disabled: true }%>

进入 Rails 应用程序，生成正确的表单元素：

<select disabled="disabled" id="post_minutes" name="post[minutes]">
   <option value="60">1 hour</option>
   <option value="90">1 hour and a half</option>
   <option value="120">2 hours</option>
</select>

并且该元素被禁用，就像它应该的那样。有没有 JS 操作这个字段？您介意提供您的完整表格以便我为您提供帮助吗？