Django使用Slug Field for Detail URL

Question

我正在尝试设置我的网站，以便我的工作细节的网址将使用slug字段而不是pk。它告诉我它找不到给定的slug（这是一个int，147）我的工作。

更新

在https://ccbv.co.uk/projects/Django/1.11/django.views.generic.detail/DetailView/查看DetailView说明后，我意识到slug_field有一个DetailView属性。我的新观点如下：

class JobDetailView(CacheMixin, DetailView):
    model = Job
    slug_field = 'slug'

问题：

网址：

urlpatterns = [
    url(r'^careers$', views.job_list, name='job-list'),
    url(r'^careers/(?P<slug>[0-9]+)/$', views.JobDetailView.as_view(), name='job-detail'),
]

视图：

class JobDetailView(CacheMixin, DetailView):
    model = Job
    pk_url_kwarg = 'slug'
    def get_object(self, *args, **kwargs):
        # Call the superclass
        object = super(JobDetailView, self).get_object()
        # Return the object
        return object

    def get(self, request, *args, **kwargs):
        object = super(JobDetailView, self).get(request, *args, **kwargs)
        return object

模型：

class Job(UpdateAble, PublishAble, models.Model):
    slug = models.CharField(unique=True, max_length=25)
    facility = models.ForeignKey('Facility')
    recruiter = models.ForeignKey('Recruiter')
    title = models.TextField()
    practice_description = models.TextField(blank=True, default="")
    public_description = models.TextField(blank=True, default="")

    objects = JobManager()

    def get_next(self, **kwargs):
        jobs = Job.objects.published()
        next = next_in_order(self, qs=jobs)
        if not next:
            next = jobs[0]
        return next

    def get_prev(self, **kwargs):
        jobs = Job.objects.published()
        prev = prev_in_order(self, qs=jobs)
        if not prev:
            prev = jobs[len(jobs)-1]
        return prev

    def __str__(self):
        return f'{self.facility}; {self.title}'

管理器：

class JobManager(models.Manager):

    def published(self):
        return super(JobManager, self).get_queryset().filter(is_published=True).order_by('facility__name', 'title')

Answer 1

你实际上根本不需要定义pk_url_kwarg，事实上你这样做会让你感到困惑，导致找不到对象。

从the default implementation of get_object可以看到，该视图通常会在网址中查找pk或slug kwarg;找到的任何一个都将用于查找。但是，通过将pk_url_kwarg设置为slug，您可以告诉视图获取名为＆＃34; slug＆＃34;的URL kwarg。但是使用它来查看PK字段，这显然不会起作用。

完全删除该属性，Django将检测你的slug kwarg并使用它来正确查看slug字段。