Question

在我的模板choose_values.html中，我有一个下拉列表，我选择了一些值。通过将request.POST分配给变量，我可以将这些值作为QueryDict传递给视图tomatos。

我想在视图tomatos

中的过滤器中使用所选值

我不知道如何从此QueryDict中提取所选值。

这是示例QueryDict：

<QueryDict: {u'csrfmiddlewaretoken': [u'pFs9fj5MLQML7KLYHXFeCWTSvuMFEoML'], u'dropdown1': [u'project1'], u'dropdown2': [u'S1'], u'dropdown3': [u'S1.2']}>

我该怎么办？

choose_values.html

CHOOSE_VALUES
<form method="post" action="{% url 'projects:manage_values' %}">{% csrf_token %}

    <select name="dropdown1">
        <option value="project1">project1</option>
        <option value="project1">project2</option>
    </select>

    <select name="dropdown2">
        <option value="S1">S1</option>
        <option value="S2">S2</option>
        <option value="all">all</option>
    </select>

     <select name="dropdown3">
         <option value="S1.1">S1.1</option>
         <option value="S1.2">S1.2</option>
         <option value="all">all</option>
    </select>

    <input type="submit" value="submit" />
</form>

tomatos view

def tomatos(request):
    context = RequestContext(request)
    ZoneSubFormSet = modelformset_factory(ZoneSubStage, fields=('zone', 'substage','value'),max_num=2)
    dupa=request.POST
    print dupa
    if request.method == 'POST':
        formset = ZoneSubFormSet(queryset=ZoneSubStage.objects.filter(substage__stage__stage_name='S1',
                                                                      substage__stage__project__name='project1',
                                                                      zone__zone_name='z1'))
    else:
        formset = ZoneSubFormSet(queryset=ZoneSubStage.objects.filter(substage__stage__stage_name='S2',
                                                                      substage__stage__project__name='project1',
                                                                      zone__zone_name='z2'))

    return render_to_response('autostages/update_values.html', {'formset': formset}, context)

修改

由于某些原因我不更新值，我不知道为什么。

def tomatos(request):
    context = RequestContext(request)
    ZoneSubFormSet = modelformset_factory(ZoneSubStage, fields=('zone', 'substage','value'),max_num=2)
    value1=str(request.POST.get('dropdown1'))
    value2=str(request.POST.get('dropdown2'))
    value3=str(request.POST.get('dropdown3'))
    if request.method == 'POST':
        formset = ZoneSubFormSet(queryset=ZoneSubStage.objects.filter(substage__stage__project__name=value1,
                                                                      substage__stage__stage_name=value2,
                                                                      zone__zone_name=value3))
        if formset.is_valid():
            formset.save(commit=True)
    else:
        formset = ZoneSubFormSet(queryset=ZoneSubStage.objects.filter(substage__stage__project__name=value1,
                                                                      substage__stage__stage_name=value2,
                                                                      zone__zone_name=value3))

    return render_to_response('autostages/update_values.html', {'formset': formset}, context)

Answer 1

您可以将此QueryDict作为普通字典使用，在这种情况下，例如，如果您想获得dropdown1值：

request.POST.get('dropdown1')

django方法POST和Querydict

1 个答案: