Question

更改下拉菜单时，我需要在views.py中获取“ cc_value”值，而无需单击提交按钮。我提到那里的博客很少，他们提到我们需要为此问题编写Ajax代码但是Django是否还有其他方法可以在不使用ajax的情况下获取下拉菜单中所选选项的值。

在purchase_settings.html中

<form method = "post" id="Purchase_setting" >
    <div>Company Code:<br/>
        <select name="cc_value" id="cc_value">
        {% for cc_value in user_setting_list.9 %}
        <option value="{{cc_value}}">{{cc_value}}</option>
        {% endfor %}
        </select>
    </div>

    <div >Purchase Organisation:<br/>
        <select name="purch_org_value">
        {% for purch_org in user_setting_list.10 %}
        <option value="{{purch_org}}">{{purch_org}}</option>
        {% endfor %}
        </select>
    </div>
    <button class="button" type="submit">SAVE</i></button>
</form>

<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
  <script>
    $("#cc_value").change(function () {
      var company_code = $(this).val();  

      $.ajax({                       
         type: "GET",
        data: {
          'ccvalue': company_code       
        },
        success: function (data) {   
          $("#purch_org_value").html(data);  
        }
      });

    });
  </script>

在view.py

def user_settings(request):
    ....
    // need to get cc_value in views on select without submiting form
     cc_value1 = request.GET.get('ccvalue')
//on select of dropdown i m not getting value.I just tried giving cc_value = request.GET.get('cc_value')
    print(cc_value1)//none

    # user setting form
    user_setting_list = user_setting.user_settings_form(client,login_username,db_username)
    print(user_setting_list)


    context = {
               'user_setting_list':user_setting_list
               }
    return render(request, 'purchase_settings.html',context)

在django中，在选择下拉列表时，无需提交即可在视图中获得选定的值

0 个答案: