对象没有属性会话

Question

我正在为库存创建签入/签出应用程序。用户不需要密码或电子邮件，只需要输入一个号码或扫描一张卡与他们的条码。因此，我没有使用auth/users模型，而是使用自己的名为Members的模型。一切正常，我可以登录/注销，但当我尝试签出一个项目时，问题就开始了。然后我得到一个错误Member object has no attribute 'session'

如何解决此错误？

错误

[27/Mar/2013 12:16:30] ERROR [django.request:215] Internal Server Error: /checkout/
Traceback (most recent call last):
  File "/Library/Python/2.7/site-packages/django/core/handlers/base.py", line 111, in get_response
    response = callback(request, *callback_args, **callback_kwargs)
  File "/Users/username/Google Drive/Python/GearTracker/GearTracker/decorators.py", line 15, in wrapper
    return function(request, *args, **kw)
  File "/Users/username/Google Drive/Python/GearTracker/inventory/views.py", line 28, in checkout
    check_status = check_in_out_item(request.session.get('user'),checked_out_item)
  File "/Users/username/Google Drive/Python/GearTracker/GearTracker/decorators.py", line 12, in wrapper
    if not (request.session.get('is_authed') == True):
AttributeError: 'Member' object has no attribute 'session'

装饰工.py

def is_user_authed(function):
    def wrapper(request, *args, **kw):
        logger.info(request)
        if not (request.session.get('is_authed') == True):
            return HttpResponseRedirect('/login/')
        else:
            return function(request, *args, **kw)
    return wrapper

inventory/views.py片段

@is_user_authed
def checkout(request):
    form = CheckoutForm(request.POST or None)
    logger.info(request)
    if request.method == 'POST':
        if (request.POST.get('serial')):
            try:
                checked_out_item = Inventory.objects.get(serial=request.POST.get('serial'))
                check_status = check_in_out_item(request.session.get('user'),checked_out_item)
            except Inventory.DoesNotExist:
                pass
        elif (request.POST.get('barcode')):
            try:
                checked_out_item = Inventory.objects.get(barcode=request.POST.get('barcode'))
                check_status = check_in_out_item(request.session.get('user'),checked_out_item)
            except Inventory.DoesNotExist:
                pass

    checked_out_items = Checkout.objects.all().filter(user=request.session.get('user'),checked_in__isnull=True)

    return render(request, 'inventory/index.html', {'items': checked_out_items, 'form': form})

库存模型

class Group(models.Model):
    name = models.CharField(max_length=200)

    def __unicode__(self):
        return self.name

class Member(models.Model):
    name = models.CharField(max_length=200)
    p_number = models.BigIntegerField()
    barcode = models.CharField(max_length=50,blank=True)

    def __unicode__(self):
        return self.name

class Inventory(models.Model):
    name = models.CharField(max_length=200)
    serial = models.CharField(max_length=200)
    barcode = models.CharField(max_length=200)
    active = models.BooleanField(verbose_name="Active (can be checked out if not out for repair)",blank=True,default=True)
    repair = models.BooleanField(verbose_name="Out for repair?",blank=True)
    group = models.ForeignKey(Group)

    def __unicode__(self):
        return self.name

class Checkout(models.Model):
    user = models.ForeignKey(Member)
    item = models.ForeignKey(Inventory)
    checked_out = models.DateTimeField()
    checked_in = models.DateTimeField(null=True, blank=True)

    def __unicode__(self):
        return self.item.name

中间件

MIDDLEWARE_CLASSES = (
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    # Uncomment the next line for simple clickjacking protection:
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
)

Answer 1

如注释中所述，问题是check_in_out_item需要一个Request，因为您已经对它进行了修饰，但是您正在传递它user，这是一个Member。您需要修改check_in_out_item以接受Request，而不是Member，或者移除装饰程序。