如何在 Django 外部设置 ModelForm 中的字段？

Question

我在views.py 中的当前设置如下所示

def order_detail(request, pk):
    order = Order.objects.get(pk=pk)

    # Define the can_something variables here.

    include_fields = []

    if can_edit_work_type:
        include_fields.append('work_type')
    if can_edit_vendor:
        include_fields.append('vendor')
    if can_edit_note:
        include_fields.append('note')

    class OrderDetailForm(forms.ModelForm):
        class Meta:
            model = Order
            fields = tuple(include_fields)

    form = OrderDetailForm(instance=order, data=request.POST)

    return render(request, 'doors/order/detail.html', {'order': order, 'form': form})    

显然，我认为最好在 forms.py 中定义 OrderDetailForm 而不是 views.py。那么如何将OrderDetailForm 移动到forms.py 并且仍然通过include_fields？

我尝试了类似的方法，但没有成功

views.py

def order_detail(request, pk):
    order = Order.objects.get(pk=pk)

    # Define the can_something variables here.

    include_fields = []

    if can_edit_work_type:
        include_fields.append('work_type')
    if can_edit_vendor:
        include_fields.append('vendor')
    if can_edit_note:
        include_fields.append('note')

    form = OrderDetailForm(instance=order, data=request.POST, include_fields=include_fields)

    return render(request, 'doors/order/detail.html', {'order': order, 'form': form})    

forms.py

class OrderDetailForm(forms.ModelForm):
    class Meta:
        model = Order

    def __init__(self, include_fields, *args, **kwargs):
        super(OrderDetailForm, self).__init__(*args, **kwargs)

        self.Meta.fields = tuple(include_fields)

但这没有用；它包括模型上的所有字段。我假设问题出在面向对象上。

欢迎任何提示或建议。提前致谢！

Answer 1

您必须在初始化程序中修改self.fields，删除在序列中未找到的映射中的键。

Answer 2

查看 Django 代码，您可能想尝试使用self._meta.fields = tuple(include_fields)。