Django 表单将初始数据添加到绑定表单

Question

我正在尝试将第一种形式的初始数据添加到第二种形式中，但似乎无法正常工作。我尝试了不同的方法，但我得到的最接近的方法来自 this post

这是我的代码

if request.method == 'POST':
    laptop_select_form = LaptopSelectForm(request.POST)
    if laptop_select_form.is_valid():
        laptop_model_id = literal_eval(laptop_select_form.cleaned_data['model'])[0]

        laptop_for_parts_form = LaptopForPartsForm(request.POST, laptop_id=laptop_model_id)

    if laptop_for_parts_form.is_valid():
else:
    laptop_select_form = LaptopSelectForm()
    laptop_for_parts_form = LaptopForPartsForm()

和表格

class LaptopForPartsForm(forms.ModelForm):
def __init__(self, laptop_id=0, *args, **kwargs):
    super(LaptopForPartsForm, self).__init__(*args, **kwargs)
    self.laptop_id = laptop_id

class Meta:
    model = LaptopForParts
    fields = ('__all__')
    widgets={'laptop_id': forms.HiddenInput()}

但是我一直收到这个错误：

laptop_for_parts_form = LaptopForPartsForm(request.POST, laptop_id=laptop_model_id)
TypeError: __init__() got multiple values for argument 'laptop_id'

有经验的人能给我指出正确的方向吗？

Answer 1

我更改了 request.POST 数据并在表单验证之前添加了 laptop_id

if request.method == 'POST':
    laptop_select_form = LaptopSelectForm(request.POST)
    if laptop_select_form.is_valid():
        # Get laptop model ID from laptop_select_form
        laptop_model_id = literal_eval(laptop_select_form.cleaned_data['model'])[0]

        # Change immutable request.POST form data to add model ID
        _mutable = request.POST.copy()
        _mutable['laptop_id'] = laptop_model_id

        laptop_for_parts_form = LaptopForPartsForm(_mutable)

    if laptop_for_parts_form.is_valid():
        laptop_for_parts_form.save()
else:
    laptop_select_form = LaptopSelectForm()
    laptop_for_parts_form = LaptopForPartsForm()

Django 表单将初始数据添加到绑定表单

Django form add initial data to bound form

python

django

django-forms