Question

当我尝试使用视图中的代码创建新对象时，不会创建该对象。不会抛出任何错误，它只是重新加载页面，但是当我尝试查看数据库时，在订单表中不存在任何对象。用于工作的代码，以及类似的代码在我使用它的另一个地方工作，但我无法弄清楚为什么它在这里不起作用。如果您可能需要任何其他代码，请告诉我。

模型：

class Order(models.Model):

    OrderID = models.AutoField(primary_key=True)
    storeID = models.ForeignKey(Store)
    DateCreated = models.DateField('Date Created', auto_now_add=True)
    OrderName = models.CharField('Order Name', max_length=25 )
    Active = models.BooleanField()

class LiquorOrder(models.Model):
    pack_size = (
                ('7', '7'),
                ('7', '7'),
            )

    LiquorOrderID = models.AutoField(primary_key=True)
    storeliquorID = models.ForeignKey(StoreLiquor)
    orderID = models.ForeignKey(Order)
    OrderAmount = models.PositiveSmallIntegerField('Order Amount', max_length=3, choices=pack_size)
    TotalPrice = models.DecimalField('Total Price', max_digits=5, decimal_places=2)

表格：

class AddToOrderForm(forms.ModelForm):

    class Meta:
        model = LiquorOrder
        fields = ('OrderAmount',)

视图：

def storeliquor(request, store_id, liquor_id):

    a = Liquor.objects.get(id=liquor_id)
    storeliquor = StoreLiquor.objects.get(liquorID=liquor_id)
    s = Store.objects.get(StoreID=store_id)
    x = Order.objects.get(storeID=s, Active=True)
    y = a.OffPremisePrice
    c = a.BottleSize


    g = request.POST.get('OrderAmount', '')
    b = a.PackSize
    h = b*2
    d = b*3
    e = b*4
    r = b*5
    if c == "1750 ML":
        pack_size = (
            ('1', '1'),
            ('3', '3'),
            (b, b),
            (h, h),
            (d, d),
            (e, e),
            (r, r),
        )
    elif c == "1000 ML":
        pack_size = (
            ('1', '1'),
            ('3', '3'),
            ('6', '6'),
            (b, b),
            (h, h),
            (d, d),
            (e, e),
            (r, r),
        )
    elif c == "750 ML":
        pack_size = (
            ('1', '1'),
            ('3', '3'),
            ('6', '6'),
            (b, b),
            (h, h),
            (c, d),
            (e, e),
            (r, r),
        )
    elif c == "375 ML":
        pack_size = (
            ('3', '3'),
            ('6', '6'),
            ('12', '12'),
            (b, b),
            (h, h),
            (d, d),
            (e, e),
            (r, r),
        )
    elif c == "200 ML":
        pack_size = (
            ('12', '12'),
            ('24', '24'),
            (b, b),
            (h, h),
            (d, d),
            (e, e),
            (r, r),
        )
    else:
        pack_size = (
            (b, b),
            (h, h),
            (d, d),
            (e, e),
            (r, r),
        )

    if request.method == "POST":
        f = AddToOrderForm(request.POST)
        updateform = AddLiquorForm(request.POST)
        if f.is_valid():
            z = f.save(commit=False)
            z.TotalPrice = (float(y)) * (float(g))
            z.storeliquorID = a
            z.orderID = x
            z.OrderAmount = g
            z.save()

        if updateform.is_valid():
            liquor = StoreLiquor.objects.get(liquorID=liquor_id)
            liquor.StorePrice = request.POST.get('StorePrice', '')
            liquor.save()

        return HttpResponseRedirect('/stores/get/%s' % store_id)

    else:
        f = AddToOrderForm()
        f.fields['OrderAmount'].choices = pack_size

        updateform = AddLiquorForm(
         initial={'StorePrice': storeliquor.StorePrice }
        )
    args = {}


    args['liquor'] = a
    args['s'] = s
    args['form'] = f
    args['form2'] = updateform

    return render(request,'storeliquor.html', args)

HTML中显示的表单：

<form action="/stores/storeliquors/{{ s.StoreID }}/{{ liquor.id }}/" method="post">{% csrf_token %}
<ul>
{{form.as_p}}
</ul>

<input type="submit" name="submit" value="Add to Order">
</form>

Answer 1

好吧，你永远不会看到任何错误，因为你总是重定向，无论形式是否有效。

您应该在此行添加缩进：

return HttpResponseRedirect('/stores/get/%s' % store_id)

Answer 2

即使其中一个或两个表单无效，您也总是在帖子上重定向。只有两者都有效时才应该重定向 - 事实上除非两者都有效，否则你甚至不应该保存它们。

请，请使用一些正确的描述性变量名称。这不是1978年，你并没有在16k的内存中运行。

django对象不会保存

2 个答案: