我正在尝试覆盖子表单中的概念查询集,以根据从 request.POST 获取的区域获取自定义列表概念,这是我的概念列表,我需要根据 POST 请求进行过滤,这个列表是我的子表单(InvoiceDetail)的一个fk。可以有这些过滤器吗?
当我按照文档所述传递初始数据initial=['concept'=queryset_as_dict]
进行一些测试后,它总是返回所有概念,但我在 View 中打印相同的内容过滤器可以,但是当我在模板中渲染时就不行了,所以我读到我需要使用一些 BaseInlineFormset。所以当我测试时我得到了不同的错误:
django.core.exceptions.ValidationError: ['ManagementForm data is missing or has been tampered with']
'InvoiceDetailFormFormSet' object has no attribute 'fields'
所以这是我的代码: 模型.py
class ConceptDetail(CreateUpdateMixin): # here, is custom list if area='default' only returns 10 rows.
name = models.CharField(max_length=150)
area = models.ForeignKey('procedure.Area')
class Invoice(ClusterableModel, CreateUpdateMixin): # parentForm
invoice = models.SlugField(max_length=15)
class InvoiceDetail(CreateUpdateMixin): # childForm
tax = models.FloatField()
concept = models.ForeignKey(ConceptDetail, null=True, blank=True) # fk to override using custom queryset
invoice = models.ForeignKey('Invoice', null=True, blank=True)
View .py
class CreateInvoiceProcedureView(LoginRequiredMixin, PermissionRequiredMixin, CreateView):
template_name = 'invoice/invoice_form.html'
model = Invoice
permission_required = 'invoice.can_check_invoice'
def post(self, request, *args, **kwargs):
self.object = None
form = InvoiceForm(request=request)
# initial initial=[{'tax': 16, }] removed
invoice_detail_form = InvoiceDetailFormSet(request.POST, instance=Invoice,
request=request)
return self.render_to_response(
self.get_context_data(
form=form,
invoice_detail_form=invoice_detail_form
)
)
表单.py
class BaseFormSetInvoice(BaseInlineFormSet):
def __init__(self, *args, **kwargs):
# call first to retrieve kwargs values, when the class is instantiated
self.request = kwargs.pop("request")
super(BaseFormSetInvoice, self).__init__(*args, **kwargs)
self.queryset.concept = ConceptDetail.objects.filter(
Q(area__name=self.request.POST.get('area')) | Q(area__name='default')
)
class InvoiceForm(forms.ModelForm):
class Meta:
model = Invoice
fields = ('invoice',)
class InvoiceDetailForm(forms.ModelForm):
class Meta:
model = InvoiceDetail
fields = ('concept',)
InvoiceDetailFormSet = inlineformset_factory(Invoice, InvoiceDetail,
formset=BaseFormSetInvoice,
form=InvoiceDetailForm,
extra=1)
我该如何修复它?,我需要阅读什么来解决这个问题,我尝试调试该过程,但没有找到答案。 我尝试这样做:
def FooForm(forms.ModelForm):
def __init__(self, *args, **kwargs):
super(FooForm, self).__init__(*args, **kwargs)
self.fields['concept'].queryset = ConceptDetail.objects.filter(area__name='default')
在 inlineformset_factory 中如何做到这一点?
最佳答案
经过大量测试,我的解决方案是使用 get_context_data 覆盖渲染之前的表单集。
def get_context_data(self, **kwargs):
context = super(CreateInvoiceProcedureView, self).get_context_data(**kwargs)
for form in context['invoice_detail_form']:
form.fields['concept'].queryset = ConceptDetail.objects.filter(area__name=self.request.POST.get('area'))
return context
关于Django 如何覆盖 inlineformset_factory 中的子表单,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/30736970/