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我有一个 django formtool 有 2 个步骤。在第一步中，我从多选中选择了一些值，我需要将这些值用于下一次详细说明。根据一些教程（http://blog.hayleyanderson.us/2015/07/26/passing-information-between-django-form-wizard-steps/）我采用第一个表单值但对于多选它只需要最后一个值正如您在图片/打印中看到的那样。

在此处输入图像描述 在此处输入图像描述

这是我的代码。

表格.py

from django import forms
from station.models import Station
from django.forms import formset_factory
from .models import Vdl
from django.contrib.auth.models import User

station_all = Station.objects.all().values('station_name', 'id_station')


options = ()
i = 0
for st in station_all: #station_all:
    station = (st['id_station'], st['station_name']),
    if i == 0:
        options = options + station
    else:
        options = options + station
    i = i+1

class VdlSelectStationsForm(forms.Form):
    vdl_name = forms.CharField(label='nome virtual data logger', max_length=20,
                                 widget=forms.TextInput(attrs={'class': 'form-control', 'placeholder': 'nome vdl'}))

    stations = forms.MultipleChoiceField(widget=forms.SelectMultiple, choices=options)

    class Meta:
        model = Station
        fields = ('station_name')

class VdlSelectSensorsForm(forms.Form):
   
    sensor_list_for_station = forms.ModelMultipleChoiceField(queryset=Vdl.objects.all())   #filter(id_user = id_user))


VdlSelectSensorsFormSet = formset_factory(VdlSelectSensorsForm, extra=1)

视图.py

from django.shortcuts import render
from .forms import VdlSelectStationsForm, VdlSelectSensorsForm
from formtools.wizard.views import SessionWizardView, CookieWizardView
from django.forms import formset_factory

from .forms import VdlSelectSensorsFormSet
from django.contrib.auth.models import User

VdlSelectSensorsFormSet  = formset_factory(VdlSelectSensorsForm, formset=VdlSelectSensorsFormSet)

class VdlWizard(SessionWizardView):
    template_name = "vdl.html"
    form_list = [VdlSelectStationsForm, VdlSelectSensorsForm]

    def get_curr_user(self, request):
        current_user = self.request.user
        print('curr: ', current_user.id)

    def get_form_initial(self, step):
        initial = {}
        id_current_user = self.request.user
        id_user = id_current_user.id

        if step == '1':
            first_step_data = self.storage.get_step_data('0')
            print('first_step_data: ', first_step_data, first_step_data.get('0-stations', ''))
            # first_step_data:  <MultiValueDict: {'csrfmiddlewaretoken': ['Htb8kqUBZgLpsKRxFyx6x1e9eTKiHXo0cVhS2sQB4awANoAfV2oK1NUMyR4k1sKY'], 'vdl_wizard-current_step': ['0'], '0-vdl_name': ['vdl1'], '0-stations': ['345', '1223', '123456']}> 123456

            vdl_name = first_step_data['0-vdl_name']
            id_vdl_station = first_step_data.get('0-stations', '') 
          

            return self.initial_dict.get(step, {'vdl_name': vdl_name, 'id_vdl_station': id_vdl_station})

    def done(self, form_list, **kwargs):
        form_data = process_form_data(form_list)

        context = {
            'form_data': form_data,
        }


        return render(self.request, 'vdl.html', {'form_data': [form.cleaned_data for form in form_list],})



def process_form_data(form_list):
    form_data = [form.cleaned_data for form in form_list]

    return form_data

不可能取所有 0 站的值吗？

4

0 回答 0