Django - 保存一个新的table1.PK和table2.PK和table2.FK

Question

我创建了2个基于django-crispy形式的表单。

1. Form1中示出了OrderHeader
2. 窗体2示出了在一个formset

当我打开现有OrderHeader，我看到页眉和线路中的OrderLines，我可以调节和保存打开的形式只是精细。

当我打开表单为空时，我在OrderHeader中选择一个客户，然后添加一些订单行，但在这里我无法保存，因为OrderLine没有OrderLine.orderheader的FK值。

问：如何在OrderLine.orderheader中保存OrderHeader.pk当我点击提交？

我views.py

def orderline_formset(request, id=None): 
    if id: 
     orderid = OrderHeader.objects.get(pk=id) 
    else: 
     orderid = OrderHeader() 

    OrderLineFormSet = inlineformset_factory(OrderHeader, OrderLine, OrderLineForm, extra = 1, can_delete=True) 

    form = OrderHeaderForm(instance=orderid) 
    formset = OrderLineFormSet(instance=orderid) 
    helper = OrderLineFormSetHelper() 

    if request.method == 'POST': 
     OrderLine.orderheader = orderid 
     formset = OrderLineFormSet(request.POST,instance=orderid) 
     if formset.is_valid(): 
      formset.save() 
      messages.success(request, 'Order saved succesfully!') 
     else: 
      messages.error(request, 'Order save error, please check fields below') 
    else: 
     formset = OrderLineFormSet(instance=orderid) 

    return render_to_response("order.html", {'orderform' : form,'formset': formset, 'helper': helper}, 
           context_instance=RequestContext(request)) 

我forms.py

class OrderHeaderForm(forms.ModelForm): 
    def __init__(self, *args, **kwargs): 
     super(OrderHeaderForm, self).__init__(*args, **kwargs) 
     self.helper = FormHelper(self) 
     self.helper.form_tag = False 

    class Meta: 
     model = OrderHeader 


class OrderLineForm(forms.ModelForm): 
    def __init__(self, *args, **kwargs): 
     super(OrderLineForm, self).__init__(*args, **kwargs) 

    class Meta: 
     model = OrderLine 


class OrderLineFormSetHelper(FormHelper): 
    def __init__(self, *args, **kwargs): 
     super(OrderLineFormSetHelper, self).__init__(*args, **kwargs) 
     self.form_method = 'post' 
     self.template = 'bootstrap3/table_inline_formset.html' 
     self.render_required_fields = True 
     self.form_tag = False 

Answer 1

的错误是，我是唯一保存表单集，而不是形式。所以我改变了我的views.py到以下;

if request.method == 'POST': 
    form = OrderHeaderForm(request.POST,instance=orderid) 
    formset = OrderLineFormSet(request.POST,instance=orderid) 
    if form.is_valid() and formset.is_valid(): 
     form.save() 
     formset.save() 
     messages.success(request, 'Order saved succesfully!')