异常值：必须使用对象 pk 或 slug 调用通用详细信息视图 TransactionDetailView

Question

当我试图从我的交易列表页面访问交易详情页面时出现此错误。我使用 UUID (primary=true) 作为交易详情页面的 PK。

memberships/models.py

class Transaction(models.Model):
    user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE, related_name="user_transaction")
    order_id = models.CharField(max_length=36, blank=True, unique=True, default=uuid.uuid4, primary_key=True, editable=False)
    membership = models.ForeignKey(Membership, on_delete=models.SET_NULL, null=True, blank=True)
    amount = models.DecimalField(max_digits=100, decimal_places=2)
    success = models.BooleanField(default=True)
    timestamp = models.DateTimeField(auto_now_add=True, auto_now=False)


    def __str__(self):
        return self.order_id

    class Meta:
        ordering = ['-timestamp']

urls.py

...removed imports


urlpatterns = [

    #Generic
    url(r'^django-admin/', admin.site.urls),
    url(r'^admin/', include(wagtailadmin_urls)),
    url(r'^documents/', include(wagtaildocs_urls)),
    url(r'^search/$', search_views.search, name='search'),

    #Authentication
    url(r'^accounts/', include('allauth.urls')),

    #Product
    url(r'^portal/', include(('portal.urls', 'portal'), namespace='portal')),

    #Payment
    url(r'^checkout/', include(('checkout.urls', 'checkout'), namespace='checkout')),

    #Membership
    url(r'^membership/', include(('memberships.urls', 'memberships'), namespace='memberships')),

    #Rating
    url(r'^ratings/', include('star_ratings.urls', namespace='ratings')),

    #Users
    url(r'^users/$', UserListView.as_view(), name='users_list'),
    url(r'^profile/$', userPage, name='userPage'),
    url(r'^users/~redirect/$', UserRedirectView.as_view(), name='redirect'),
    url(r'^users/(?P<username>[\w.@+-]+)/$', UserDetailView.as_view(), name='detail'),
    url(r'^users/(?P<username>[\w.@+-]+)/summary/$', SummaryDetailView.as_view(), name='summary'),
    url(r'^users/~update/$', UserUpdateView.as_view(), name='update'),
    url(r'^users/redirectprofile/$', RedirectProfileView.as_view(), name='redirectprofile'),
    # For anything not caught by a more specific rule above, hand over to
    # Wagtail's page serving mechanism. This should be the last pattern in
    # the list:
    url(r'', include(wagtail_urls)),

    # Alternatively, if you want Wagtail pages to be served from a subpath
    # of your site, rather than the site root:
    #    url(r'^pages/', include(wagtail_urls)),
]




if settings.DEBUG:
    from django.conf.urls.static import static
    from django.contrib.staticfiles.urls import staticfiles_urlpatterns

    # Serve static and media files from development server
    urlpatterns += staticfiles_urlpatterns()
    urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

memberships/urls.py

from django.urls import path

from .views import (
    MembershipSelectView,
    PaymentView,
    success,
    updateTransactionRecords,
    user_subscriptions_view,
    cancelSubscription,
    TransactionDetailView,
    TransactionListView,
    SubscriptionDetailView,
    SubscriptionListView,
    adminPanel,
    permission_denied
    )

app_name = 'memberships'

urlpatterns = [
    path('', MembershipSelectView.as_view(), name='select'),
    path('payment/', PaymentView, name='payment'),
    path('success/', success, name='purchase_success'),
    path('update-transactions/<subscription_id>/', updateTransactionRecords, name='update-transactions'),
    path('subscription/', user_subscriptions_view, name='user_subscription'),
    path('cancel/', cancelSubscription, name='cancel'),

    #TODO MAKE SURE ONLY SUPERUSERS CAN VIEW THESE PAGES
    path('transactions/', TransactionListView.as_view(), name='transaction_list'),
    path('transaction/<uuid:order_id>/', TransactionDetailView.as_view(), name='transaction_detail'),
    path('subscriptions/', SubscriptionListView.as_view(), name='subscription_list'),
    path('subscription/<slug:id>/', SubscriptionDetailView.as_view(), name='subscription_detail'),
    path('admin/', adminPanel, name='admin_panel'),
    path('permission_denied/', permission_denied, name='permission_denied')
]

memberships/views.py

class TransactionDetailView(DetailView):
    model = Transaction
    slug_field = 'order_id'

memberships/transaction_list.html

      {% if object_list %}

        {% for transaction in object_list %}
        <tr class="text-left">
          <td ><strong><a href="{% url 'memberships:transaction_detail' transaction.order_id %}" class="text-dark">{{ transaction.user }}</a></strong></td>
          <td  class="text-dark">{{ transaction.order_id }}</td>
          <td  class="text-dark ">{{ transaction.timestamp }}</td>
          <td  class="text-dark ">{{ transaction.success }}</td>
          <td  class="text-dark">$ {{ transaction.amount }}</td>
        </tr>
        {% endfor %}

        {% else %}
            <p>There were no transactions found.</p>
    {% endif %}

编辑：我添加了我的主要 urls.py 和 memberships/urls.py。交易页面在memberships.urls.

下

Answer 1

您已将视图的 slug_field 参数设置为 order_id，但您尚未告诉它从何处获取该字段的值；正如错误所说，视图仍然期望 URL 给它 pk 或 slug。

事实上，您的 order_id 是主键，而不是 slug，无论您的主键是什么，Django 都已经有了一个别名：pk。所以你应该用 pk_url_kwarg.

替换那个属性

class TransactionDetailView(DetailView):
    model = Transaction
    pk_url_kwarg = 'order_id'

Answer 2

您需要更新视图中的 slug_url_kwarg。例如：

class TransactionDetailView(DetailView):
    model = Transaction
    slug_field = 'order_id'
    slug_url_kwarg = 'order_id'
    ...

因为基于 this code，slug 值是通过视图的属性 slug_url_kwarg 从 kwargs 中获取的。

另外请更新 url 路径。

Url:

path('transaction/<uuid:order_id>/', TransactionDetailView.as_view(), name='transaction_detail'),

异常值：必须使用对象 pk 或 slug 调用通用详细信息视图 TransactionDetailView

Exception Value: Generic detail view TransactionDetailView must be called with either an object pk or a slug

django

uuid

Url: