从Django的下拉菜单中检索多个值 [英] retrieve multiple values from Dropdown menu in Django

问题描述

我的模板中有一个很好的呈现形式的表单，其中包含一个下拉菜单和一个保存按钮，当我从下拉菜单中选择一个项目并单击保存"时，我将以下项目的网址传递给views.py，如下所示:

I have a form well rendered in my template with a dropdown menu and a save button, when i choose an item from the dropdown menu and click save, I pass to the views.py the url for that item, like this:

<select name="listxblocks">
  {% for scname, desc in scenarios %}
    <option value="{% url "workbench_show_scenario" scname %}">{{desc}}/{{scname}}</option>
  {% endfor %}
</select>

现在，在views.py文件中，我可以检索所选项目及其值，

Now, in the views.py file i can retrieve the selected item and it's value,

if request.method == "POST": #checks if the request is a POST operation
    url = request.POST['listxblocks'] 

但是我还想检索名称 scname 和描述 desc

but i want also to retrieve the name scname and the description desc

我尝试了隐藏字段，但是这使我的模板混乱了，我该怎么办?谢谢！

I tried with hidden field but it made my template messy, how can i do that? Thanks!

推荐答案

有两种方法可以从您的选择中检索所有信息.

There are two ways for retrive all information from your select.

1)从选择中获取 全部 数据.在视图中，使用以下代码:

1) Take all data from select. in the view use the following code:

variable = request.POST.getlist('listxblocks')

2)将多个"添加到您的选择中，例如

2) add "multiple" to your select like

<select name="listxblocks" multiple="multiple">
      {% for scname, desc in scenarios %}
      <option value="{% url "workbench_show_scenario" scname %}">{{desc}}/{{scname}}</option>
      {% endfor %}
    </select>

使用

url = request.POST['listxblocks']

您会找到一个包含所有选定选项的列表

you will find a list with all selected options

希望这会有所帮助:)

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