Question

因此，我试图在{{form.mprodname（class =“ form-control form-control-lg”）}}中获取用户的值，以便在if语句中使用它进行比较。我如何在提交之前获得该价值？

<!-- Modal code-->
<div class="modal fade" id="exampleModal" tabindex="-1" role="dialog"       aria-labelledby="exampleModalLabel" aria-hidden="true" style="margin-  top:150px;">
  <div class="modal-dialog" role="document">
    <div class="modal-content">
      <div class="modal-header">

        <h3 class="modal-title" id="exampleModalLabel">Move Product</h3>
        <button type="button" class="close" data-dismiss="modal" aria-label="Close">
          <span aria-hidden="true">&times;</span>
        </button>
      </div>
      <div class="modal-body">
        <form  action="" method="post">
            {{ form.csrf_token() }}
          <div id="prod">
            {{form.mprodname.label(class="form-control-label")}}<br>
            render_field(form.mprodname(class="form-control form-control-lg"))
          </div>

          <div id="from">
          {{form.src.label(class="form-control-label")}}<br>
          {{form.src(class="form-control form-control-lg")}}
          </div>
          <div id="to">
          {{form.destination.label(class="form-control-label")}}<br>
          {{form.destination(class="form-control form-control-lg")}}
          </div>
          <div class="qty">
            {{form.mprodqty.label(class="form-control-label")}}<br>
            {% for p in pdetails %}
            ``` {%if p.prod_name == '?' %}
                   <div>
                    {{form.mprodqty(class="form-control form-control-lg",placeholder=p.prod_qty) }}
                   </div>
             {% endif %}
           ```
            {%endfor%}
          </div>
      </div>

我希望占位符具有产品的当前数量

提交表单前如何获取wtform当前字段值？

0 个答案: