使用ModelBase的Django Formsets不顯示覆選框默認值，而是顯示下拉列表

如果存在no_new_item，我需要創建一個必需的複選框選項。我正在使用model.NullBoolean字段。根據Django文檔，布爾字段應呈現複選框小部件，但NullBoolean呈現Select。切換到NullBoolean的原因是由於遷移時出現空錯誤。所以現在我得到一個下拉列表'是'和'否'。我將如何去創建基本模型中的複選框。使用NullBoolean的模型還是有更好的方法？使用ModelBase的Django Formsets不顯示覆選框默認值，而是顯示下拉列表

（這是因爲我錯過談到Django的文檔的編輯。感謝@Alasdair）

/models.py

class StoreNightlyReport(models.Model): 
    store_number = models.ForeignKey('Stores', verbose_name='Store Number', max_length=20, null=True) 
    date = models.DateField(null=True) 
    #managers = models.ManyToManyField('auth.User', blank=True, null=True) 

    def __str__(self): 
     return self.store_number.store_number 


class StoreNightlyReportsBase(models.Model): 
    store_nightly_report = models.ForeignKey(StoreNightlyReport) 
    no_new_item = models.NullBooleanField(verbose_name='No New Items', default=True) 
    customer = models.CharField(verbose_name='Customer Name', max_length=20, null=True) 

    class Meta: 
     abstract = True

/forms.py

class StoreNightlyReportsForm(ModelForm): 
    class Meta: 
     model = StoreNightlyReport 
     widgets = {'date': SelectDateWidget()} 
     exclude =() 

    def __init__(self, *args, **kwargs): 
     user = kwargs.pop('user') 
     super(StoreNightlyReportsForm, self).__init__(*args, **kwargs) 
     if 'store_number' in self.fields: 
      if not user.is_superuser: 
       self.fields['store_number'].queryset = Stores.objects.filter(managers=user)

/人次.py

class StoresNightlyReportsNewLoansCreate(CreateView): 
    template_name = 'reports/storenightlyreport_form.html' 
    model = StoreNightlyReport 
    form_class = forms.StoreNightlyReportsForm 
    success_url = reverse_lazy('reports:storenightlyreports') 

    def get_form(self, form_class=None): 
     form_class = self.get_form_class() 

     form = form_class(self.request.POST or None, user=self.request.user) 
     self.formsets = {} 
     StoreNightlyReportsNewLoanFormSet = inlineformset_factory(StoreNightlyReport, 
                    StoreNightlyReportsNewLoan, 
                    exclude=[], 
                    extra=1) 
     self.formsets['new_loan'] = StoreNightlyReportsNewLoanFormSet(self.request.POST or None) 

    def get_context_data(self, **kwargs): 
     data = super(StoresNightlyReportsNewLoansCreate, self).get_context_data(**kwargs) 
     data['formset_new_loan'] = self.formsets['new_loan'] 
     return data 


    def get_context_data(self, **kwargs): 
     data = super(StoresNightlyReportsNewLoansCreate, self).get_context_data(**kwargs) 
     #formset_renewal = StoreNightlyReportsRenewalFormSet() 
     data['formset_new_loan'] = self.formsets['new_loan'] 
    return super(StoresNightlyReportsNewLoansCreate, self).form_invalid(form)

/tem plate.html

{% extends "reports/base.html" %} 
{% load static %} 

{% block body_block %} 


<div class="container-fluid"> 
    <form class="form-inline" action="" method="post"> 
     {% csrf_token %} 
     {{ form }} 

     <table class="table"> 
      {{ formset_new_loan.management_form }} 
      <div> 
      <br><h4><strong>New Loans</strong></h4><br> 
      {% include "reports/formsets.html" with formset=formset_new_loan formset_class_name='new_loan' %} 
      </div> 
     </table>

來源

2017-08-29 Prof. Falken

你是不正確有關文檔 - 默認控件['NullBooleanField'（https://docs.djangoproject.com/en/1.11/ref/models/fields/#nullbooleanfield）是' NullBooleanSelect'。如果您使用複選框，則無法區分'False'和'Null'。 – Alasdair

@Alasdair你是對的，我正在查看布爾字段，這是我原來的意圖，但在遷移過程中收到空錯誤，並做了錯誤建議選擇NullBoolean以便將其添加到模型中。鑑於這種情況，我如何使用NullBoolean來做到這一點，或者如果布爾確實是獲得複選框的唯一方法，我該如何清除空錯誤？ –

固定

經過一番思考我只是回到了model.Base並改成了BooleanField類型，並添加了默認值。這清除了遷移時的空錯誤並呈現複選框選項。

class StoreNightlyReportsBase(models.Model): 
    store_nightly_report = models.ForeignKey(StoreNightlyReport) 
    no_new_item = models.BooleanField(verbose_name="Check if No New Items", default=False) 
    customer = models.CharField(verbose_name='Customer Name', max_length=20, null=True)

來源

2017-08-29 15:02:56

使用ModelBase的Django Formsets不顯示覆選框默認值，而是顯示下拉列表

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