无法在vue js中绑定单选按钮输入？

Question

我浏览了文档并尝试了以下代码。我能够获取enquiryDesc的数据，但获得评级的空值。我尝试了几个步骤并获得空值。

我的html表单是

<form id="enquiryBox" method="POST" onSubmit="return false;" data-parsley-validate="true" v-on:submit="handelSubmit($event);">
  <div class="modal-body brbottom-20">
    <div class="clearfix">
      <div class="col-lg-6">
        <div class="form-group required">
          <fieldset class="rating">
            <input v-model="rating" type="radio" id="rating" name="rating" value="5" ><label v-bind:value="5" class = "full" for="star5" title="Awesome"></label>
               <input v-model="rating" type="radio" id="rating" name="rating" value="4" ><label v-bind:value="4" class="half" for="star4half" title="Pretty good"></label>
               </fieldset>
        </div>
      </div>
      <div class="col-lg-6">
        <div class="form-group required">
          <label>Enquiry</label>
          <textarea placeholder="Write your enquiry here" rows="7" id="enquiryDesc" name="enquiryDesc" class="form-control required" title="Desc" v-model="enquiryDesc" required="required"></textarea>
        </div>
      </div>
    </div>
  </div>
  <div class="">
    <button id="btn-submit-enquiry" class="btn whiteButton" type="submit">Post Enquiry</button>
  </div>
</form>

我的vue js脚本为

enquiryBox = new Vue({
   el: "#enquiryBox",
   data: {
     rating: '',
     enquiryDesc: '',
   },
   methods: {
     handelSubmit: function(e) {
       var vm = this;
       data = {};
       data['rating'] = this.rating;
       data['enquiryDesc'] = this.enquiryDesc;
       console.log(data);

       $.ajax({
         url: 'https://api/post/add_review/',
         data: data,
         type: "POST",
         dataType: 'json',
         success: function(e) {
           if (e.status) {
             alert("Success")

           } else {
             vm.response = e;

             alert(" Failed")
           }
         }
       });
       return false;
     }
   },
 });

我对console.log(data)

的回复

  

{rating：“”，enquiryDesc：“cg”}

我使用了v-model和v-bind:value，现在我不是价值观。我真的被这些困住了。有没有初始化的东西？请帮助我找到解决方案。我已经完成了几个教程，所有内容都以同样的方式表达。