Question

我的 models.py 文件中有这些模型

class Subscriber(models.Model):
    subscriber_id = models.IntegerField(null=True)
    subscriber_name = models.CharField(max_length=200, null=True)
    
    def __str__(self): return self.subscriber_name


class Employee(models.Model):
    employee_id = models.IntegerField(null=True)
    employee_name = models.CharField(max_length=200, null=True)
    employee_email = models.CharField(max_length=200, null=True)
    
    user = models.OneToOneField(User, null=True, on_delete=models.CASCADE)
     
    subscriber_id = models.ForeignKey(Subscriber, null=True, on_delete= models.SET_NULL)

    def __str__(self): return self.employee_name


class Tag(models.Model):
    tag_id = models.IntegerField(null=True)
    asset_name = models.CharField(max_length=200, null=True)
    STATUS = (('Available','Available'),('Taken','Taken'),)
    asset_status = models.CharField(max_length=200, null=True, choices=STATUS)

    subscriber_id = models.ForeignKey(Subscriber, null=True, on_delete= models.SET_NULL)
    rfid_id = models.ManyToManyField(RFID)
    asset_location = models.CharField(max_length=200, null=True)

    def __str__(self): return self.asset_name


class Borrowing(models.Model):
    start_date = models.DateField(auto_now_add=True, null=True)
    end_date = models.DateField(null=True)

    subscriber_id = models.ForeignKey(Subscriber, null=True, on_delete= models.SET_NULL)

    employee_id = models.ForeignKey(Employee, null=True, on_delete= models.SET_NULL)
    tag_id = models.ForeignKey(Tag, null=True, on_delete= models.SET_NULL)

    employee_id_scanned = models.IntegerField(null=True,default=0)
    asset_id_scanned = models.IntegerField(null=True,default=0)
    reader_code = models.CharField(max_length=200, null=True, default=0)

    def __str__(self): 
        return str(self.end_date)

我的views.py中有以下代码：

def createBorrowing(request, pk):

    employee = Employee.objects.get(id=pk)
    BorrowingFormSet = inlineformset_factory(Employee, Borrowing, fields=('end_date','tag_id'))


    formset = BorrowingFormSet(queryset=Borrowing.objects.none(), instance=employee)
    if request.method == 'POST':
        formset = BorrowingFormSet(request.POST, instance=employee)
        if formset.is_valid():
            formset.save()
            return redirect('/login')

    context = {'formset':formset}
    return render(request, 'assetstracking/createBorrowing.html', context)

如你所见，我有一个表单，它连接到 Borrowing 模型，所以在这个表单中，有两个外键字段，employee_id 和subscriber_id。我成功地使用 inlineformset_factory 自动填充了employee_id 键，如views.py 中的createBorrowing() 函数所示，但我找不到一种方法来填充另一个外键，subscriber_id，也是自动填充的。

有没有办法做到这一点？？

Answer 1

我不太确定你在问什么，但我认为直到会帮助你

是的，您可以将表单中的值传递给视图，然后您可以使用这些值来使用

查找整个查询

val=Models.objects.get(name=name)

然后你就可以保存它了。

在 Django 中自动填充两个外键字段

1 个答案: