在 django ModelForm 中动态添加字段

Question

我的模特

class MyModel(models.Model):
    remark = models.CharField(max_length=120)
    data_1 = models.BooleanField(default=False)
    data_2 = models.BooleanField(default=False)
    data_3 = models.BooleanField(default=False)
    data_4 = models.BooleanField(default=False)

表格

class MyModelForm(forms.ModelForm):
    CHOICES= (("data_1", "data_1"),
               ("data_2", "data_2"),
               ("data_3", "data_3"),
               ("data_4", "data_4"),)
    my_choice = forms.MultipleChoiceField(choices=CHOICES, widget=forms.CheckboxSelectMultiple())
    class Meta:
        model = MyModel
        fields = ["remark"]

查看

class MyView(UpdateView):
    model = MyModel
    form_class = MyModelForm
    template_name = "mytemplate.html"

    def form_valid(self, form):
        selected_choices = self.request.POST.getlist("my_choice")
        for item in selected_choices:
            form.instance.item = False
        form.instance.remarks = form.cleaned_data["remark"]
        form.instance.save()
        return super(MyView, self).form_valid(form)

我想要的是，我想通过选中复选框将其值更改为 False，其余的必须不受影响。请帮助....

Answer 1

这个问题很难理解，似乎和给表单添加字段没有任何关系。但我认为你正在寻找setattr：

    for item in selected_choices:
        setattr(form.instance, item, False)