Question

我根据django-crispy形式创建了2个表单。

Form1显示OrderHeader
Form2以formset

当我打开现有的OrderHeader时，我会看到Header和Lines，我可以调整并保存打开的表单。

当我打开表格为空时，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：当我点击提交时，如何在OrderLine.orderheader中保存OrderHeader.pk？

我的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))

我的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

错误是我只保存了formset而不是表单。所以我将views.py更改为以下内容;

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!')

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

1 个答案: