无法分配“'7'”：“Appointment.your_service”必须是“Service”实例

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如何解决无法分配“'7'”：“Appointment.your_service”必须是“service”实例？

我正在开发一个“美容院管理系统”项目，但出现此错误（无法分配“'7'”：“Appointment.your_service”必须是“服务”实例。）这里的任何人都可以帮助我，请。

当我填写预约表格时，我收到了这个错误。

class service(models.Model):
    name = models.CharFIEld(max_length=50)
    price = models.IntegerFIEld(default=0)
    image = models.ImageFIEld(upload_to='uploads/productimg')

class Appointment(models.Model):
    your_name = models.CharFIEld(max_length=100)
    your_phone = models.CharFIEld(max_length=10)
    your_email = models.EmailFIEld(max_length=200)
    your_service = models.ForeignKey('service',on_delete=models.CASCADE,default=1)
    your_date = models.DateFIEld() 

vIEws.py

def appointments(request):
    if request.method == 'GET':
        return render(request,'core/bookappointment.HTML')
    else:   
        your_name = request.POST.get('your-name')
        your_phone = request.POST.get('your-phone')
        your_email = request.POST.get('your-email')
        your_service = request.POST.get('your-service')
        your_date = request.POST.get('your-date')
    
        details = Appointment(
            your_name = your_name,your_phone = your_phone,your_email = your_email,your_service = your_service,your_date = your_datE)
        details.save()
        return render(request,'core/appointments.HTML')

解决方法

details = Appointment.objects.create(
    your_name=your_name,your_phone=your_phone,your_email=your_email,your_service_id=your_service,your_date=your_date
)

def appointments(request,pk):
    record = get_object_or_404(service,pk=pk)
    if request.method == 'POST':
        
        form = appointmentsForm(request.POST,request.FILES)
        if form.is_valid():
            appointment= form.save(commit=falsE)
            appointment.your_service = record
            appointment.save()
            return render(request,'core/bookappointment.html')
    else:   
        
        return render(request,'core/appointments.html')

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