Question

我已经设置了我的模型，如下所示：

Models.py

class Customer(models.Model):

    CustomerID = models.CharField(max_length=50)
    Name = models.CharField(max_length=50)
    Mobile = models.CharField(max_length=15)

    def __unicode__(self):
        return self.CustomerID

class orderHistory(models.Model):

    BookingNumber = models.CharField(max_length=50)
    customer = models.ForeignKey(Customer)
    def __unicode__(self):
        return self.BookingNumber

我还使用ModelForm来设置forms.py：

class customerForm(ModelForm):
    class Meta:
        model = Customer
        exclude = ['CustomerID']

我的views.py中的函数是这样的：

    if request.method == 'POST':
    form = customerForm(request.POST or None)
    # check whether it's valid:
    if form.is_valid():
        instance = form.save()
        if not instance.CustomerID:
            instance.CustomerID = 'DHOBI' + instance.Mobile

        instance.save()    
        return HttpResponseRedirect('/data/test')

    else:
        form = customerForm()
return render(request, "data/index.html",{'form':form})

我的问题是，在获取Customer模型的数据后，如何填充数据库中BookingNumber的数据？我的意思是，如果我想将预订号码设置为Mobile + Today的日期和时间。我怎么做。

Answer 1

import datetime
bn = "%s-%s" % (instance.Mobile,str(datetime.datetime.now())
order_hist = orderHistory.objects.create(customer=instance, BookingNumber=bn)

注意类的命名：给类大写名称和属性小写。你反过来了。

使用基于ModelForm的表单中的数据填充外键字段

1 个答案: