禁止 save() 以防止由于未保存的相关对象“employee”而导致数据丢失

Question

我正在研究 inlineformset_factory。Inlineformset_factory 有两个模型（WorkExperience 和 Education）与使用外键关系的 Employee 模型相关。当我提交表单时，我收到一个值错误。错误是：

save() prohibited to prevent data loss due to unsaved related object 'employee'

这是我的发帖方法：

def post(self, request, *args, **kwargs):

        form = self.form_class(request.POST)

        # work_form = self.work_form_class(request.POST, prefix='work_form')

        # education_form = self.education_form_class(request.POST, prefix='education_form')

        work_formset = self.work_formset_class(request.POST or None, request.FILES, prefix='work_form')

        education_formset = self.education_formset_class(request.POST or None, request.FILES, prefix='education_form')

        data = request.POST.copy()

        # Check form validation

        if form.is_valid() and work_formset.is_valid() and education_formset.is_valid():

            instance = form.save()

            # Save work experience

            for work_form in work_formset:

                work = work_form.save(commit=False)

                work.employee_id = instance.id

                work.save()

            work_formset.save()

            # Save education experience

            for education_form in education_formset:

                education = education_form.save(commit=False)

                education.employee_id = instance.id

                education.save()

            education_formset.save()

models.py:

class Employee(models.Model):

    """

    Create employee attributes

    """

    employee_user = models.OneToOneField(settings.AUTH_USER_MODEL, on_delete=models.CASCADE, blank=True, null=True)

    e_id = models.IntegerField(unique=True, null=True)

    first_name = models.CharField(max_length=128, null=True)

    last_name = models.CharField(max_length=128, null=True)

我不知道错误在哪里。阻止 save() 的错误在哪里？

Answer 1

问题解决了！添加实例=form.instancework_formset = self.work_formset_class(request.POST or None, request.FILES, instance=form.instance, prefix='work_form') education_formset = self.education_formset_class(request.POST or None, request.FILES, instance=form.instance, prefix='education_form')