我想知道在验证父级时是否有办法访问内联表单。例如，如果我的设置如下所示:
admin.py
class ChildInline(nested_admin.NestedTabularInline):
form = forms.ChildInlineForm
model = models.Child
extra = 0
@admin.register(models.Parent)
class ParentAdmin(nested_admin.NestedModelAdmin):
form = forms.ParentForm
inlines = [ChildInline]
模型.py
class Parent(models.Model):
name = models.CharField(max_length=10)
class Child(models.Model):
name = models.CharField(max_length=10)
parent = models.ForeignKey(
Parent, on_delete=models.CASCADE, related_name='children'
)
forms.py
class ChildForm(forms.ModelForm):
class Meta:
model = models.Child
fields = '__all__'
class ParentForm(forms.ModelForm):
class Meta:
model = models.Parent
fields = '__all__'
def clean(self):
super().clean()
# How would I access the ChildForm here?
有没有办法从
ChildForm 访问 ParentForm.clean() 我意识到我可以在 child 中获取父数据 - 但我的用例涉及多个有数据传递给父级的 child - 我想在顶层验证(如果可能的)。我也尝试过在
model.Parent.clean() 方法中进行验证，但是 Child 模型是在父模型之后保存的，所以这似乎也不是初学者。离开下面的答案，我也尝试使用自定义表单集:
class ParentFormSet(forms.BaseModelFormSet):
def clean(self):
if any(self.errors):
return
for f in self.forms:
print(f.cleaned_data)
class ParentForm(forms.ModelForm):
class Meta:
model = models.Parent
fields = '__all__'
formset = ParentFormSet
但是没有打印任何内容，因此似乎无法访问它？
最佳答案
您也许能够覆盖 ModeAdmin 方法 save_formset() ？
https://docs.djangoproject.com/en/2.2/ref/contrib/admin/#django.contrib.admin.ModelAdmin.save_formset
@admin.register(models.Parent)
class ParentAdmin(nested_admin.NestedModelAdmin):
form = forms.ParentForm
inlines = [ChildInline]
def save_formset(self, request, form, formset, change):
parent_form = form
for form_set_form in formset:
if formset_form.is_valid():
form_set_form_data = form_set_form.cleaned_data
# do some validation here...
formset.save()
关于Django 表单验证 : get child form data in parent，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/59734409/