Question

我正在使用表单生成器在w中创建一个应用程序。我添加了documentation中概述的自定义表单提交模型。我正在将自定义表单提交模型作为另一个模型（这里称为BridgeModel）中的外键，该模型还将存储其他外键。提交表单时，我也希望桥模型也自动更新（创建新行）。我最大的挑战是访问提交模型的当前主键，以便将其保存到桥模型。概念证明在下面

class FormBuilderField(AbstractFormField):
    form_builder_page = ParentalKey('FormBuilderPage', on_delete=models.CASCADE, related_name='form_fields')

class FormBuilderPage(AbstractEmailForm):

    content_panels = AbstractEmailForm.content_panels + [
        FormSubmissionsPanel(),
        InlinePanel('form_fields', label="Form fields"),
    ]

    def get_submission_class(self):
        return FormBuilderSubmission

    def process_form_submission(self, form):
        self.get_submission_class().objects.create(form_data=json.dumps(form.cleaned_data, cls=DjangoJSONEncoder),page=self)


class FormBuilderSubmission(AbstractFormSubmission):
        def get_data(self):
            form_data = json.loads(self.form_data)

            form_data.update({
                'submit_time': self.submit_time,
             })
            #Tried this, doesn't work. 
            submission_id = FormBuilderSubmission.objects.get(id=self.id)
            update_bridge = BridgeModel.objects.create(form_builder=submission_id)
            process_update = update_bridge.save()

            return form_data

class BridgeModel(models.Model):
    form_builder = models.ForeignKey('FormBuilderSubmission', default=1, on_delete=models.CASCADE)
    #other foreign keys here

Answer 1

我已经开始工作了。使用全局变量并覆盖process_form_submission函数，有点hacky。

class FormBuilderPage(AbstractEmailForm):

    content_panels = AbstractEmailForm.content_panels + [
        FormSubmissionsPanel(),
        InlinePanel('form_fields', label="Form fields"),
    ]

def get_submission_class(self):
    return FormBuilderSubmission

def process_form_submission(self, form):
    create_submission = self.get_submission_class().objects.create(form_data=json.dumps(form.cleaned_data, cls=DjangoJSONEncoder),page=self)

   #grabs the primary key from the submission model row just created
    get_submission = self.get_submission_class().objects.filter(pk=create_submission.id).values('id')
    global get_primary    
    get_primary = [id['id'] for id in get_submission]

现在从任何模型中，您都可以访问该主键以将其另存为外键

    update_bridge = BridgeModel(form_builder_id=get_primary[0])
    update_bridge.save()

我敢肯定有更好的方法可以做到这一点，但是到目前为止，它可以满足我的需求。

Wagtail表单生成器：将自定义表单提交作为其他模型中的外键，并在提交时自动更新

1 个答案: