Question

我扩展了一个模型，但相关模型没有正确保存到数据库中。下面我只调用SupplyAddress()而不是通过SupplyAddress.objects.create()创建并保存它的实例但是，如果我尝试这样做，那么尚未创建相关的地址（和用户）来保存反对。保存用户的最佳方式是Address和SupplyAddress？

models.py

class Address(models.Model):
    user = models.ForeignKey(settings.AUTH_USER_MODEL)
    house_name_number = models.CharField(max_length=255, verbose_name="house name or number")
    street_name = models.CharField(max_length=255)
    town_city = models.CharField(max_length=255)
    county = models.CharField(max_length=255)
    postcode = models.CharField(max_length=8)

    time_stamp = models.DateField(auto_now=True)  

class SupplyAddress(models.Model):
    address = models.OneToOneField(Address)
    region = models.ForeignKey(Region, null=True)

    occupied = models.BooleanField()

forms.py

class SupplyAddressForm(forms.ModelForm):

    occupied = forms.BooleanField()    


    def save(self, *args, **kwargs):
        super().save(*args, **kwargs)
        data = self.cleaned_data
        supply_address = models.SupplyAddress(
            occupied=data['occupied'],
        )
        self.instance.supplyaddress = supply_address
        return self.instance

    class Meta:
        model = Address
        fields = ['house_name_number',
                  'street_name',
                  'town_city',
                  'county',
                  'same_address',
                  'move_in_date',
                  'postcode',
                  ]

views.py

.....
address = form.save(commit=False)
        address.user = user
        address.save()

Answer 1

编辑保存方法，

class SupplyAddressForm(forms.ModelForm):

    occupied = forms.BooleanField()    

    class Meta:
        model = Address
        fields = ['house_name_number',
                  'street_name',
                  'town_city',
                  'county',
                  'same_address',
                  'move_in_date',
                  'postcode',
                  ]

    def save(self, *args, **kwargs):
        data = self.cleaned_data
        supply_address = models.SupplyAddress.objects.create(occupied=data['occupied'])
        instance = super(SuppyAddressForm, self).save(*args, **kwargs)
        instance.supplyaddress = supply_address
        instance.save()
        return instance

扩展的modelform不保存相关表

1 个答案: