允许用户更改他在数据库中的订单值

Question

我想允许用户从数据库中更改其订单中的值

这个想法是当用户按下删除按钮时，可见的值从是变为否，他将无法在个人资料上看到它

我成功提取了所有用户的订单

但我找不到让按钮仅更改当前用户订单值的方法

有什么办法可以做到吗？

models.py

class Order(models.Model):
    status_ch = [('in process', 'in process'), ('complete', 'complete')]
    visible_ch = [('yes', 'yes'), ('no', 'no')]
    status = models.CharField(
        choices=status_ch, max_length=20, null=True, blank=False, default='in process')
    user = models.ForeignKey(
        User, on_delete=models.CASCADE, null=True, blank=True)
    saller = models.CharField(blank=True, max_length=200)
    product = models.CharField(blank=True, max_length=200)
    currency = models.CharField(blank=True, max_length=200)
    name = models.CharField(max_length=200, null=True, blank=False)
    phone = models.FloatField(null=True, blank=False)
    amount = models.FloatField(null=True, blank=False)
    email = models.EmailField(null=True, blank=True)
    accountId = models.TextField(default='', blank=False)
    date = models.DateField(default=datetime.date.today)
    image = models.ImageField('Label')
    visible_for_saller = models.CharField(
        choices=visible_ch, max_length=20, null=True, blank=False, default='yes')
    visible_for_buyer = models.CharField(
        choices=visible_ch, max_length=20, null=True, blank=False, default='yes')

    def __str__(self):
        return self.saller

views.py

@login_required
def profile(request):
    orders = Order.objects.filter(user=request.user)
    return render(request, 'app/profile.html', {'orders': orders})

Answer 1

首先，您将visible 属性用作布尔值，所以我建议这样做：

visible_for_saller = models.BooleanField(default=True)
visible_for_buyer = models.BooleanField(default=True)

那么，如果我理解得很好，你不想删除订单，只是让它对用户不可见，对吧？ 如果是这种情况，您要制作的按钮必须调用一个视图，您只需在其中更改visible_for_buyer 属性，对吗？这可能是视图：

def delete_order_for_buyer(request, pk):
    user = request.user  # you get the loged user
    order = Order.objects.get(pk=pk)  # you get the order through the pk
    if order.user == user:  # you check if the user is the owner of the order
        order.visible_for_buyer = False  # set the attr to false
        order.save()  # save that specific object
        return HttpResponseRedirect(request.META.get('HTTP_REFERER', '/'))  # you redirect to the page you came (you can change this for whatever you want)
    else:
        raise PermissionDenied()  # in case someone that is not the user tries to execute that view through the url you make, it will raise an error.

然后你只需要添加你想要的网址，比如：

    path('order/<pk>/delete/', views.delete_order_for_buyer, name='delete-order'),

最后在您列出所有订单的视图上（如果您有很多订单，您可以创建一个 if 语句来检查 visible_for_buyer 是真还是假：

{% if order.visible_for_buyer %}
  show content here
{% endif %}

根据你提供的所有信息，我不得不假设很多事情，但我想这会对你有所帮助