Django get_absolute_url()将用户返回首页

时间:2019-03-15 08:23:00

标签: python django url

当用户使用我想要的CreateView创建帖子时,因此当用户提交帖子时,他们随后将看到他们刚发表的帖子。但是由于某种原因,我的get_absolute_url()无法正常工作。

在此之前,我开始研究Post和Category模型的功能,由于get_absolute_url无效,因此无法查看它们是否有效。

型号:

class Category(models.Model):
    title = models.CharField(max_length=200)
    colorcode = models.CharField(max_length=20, blank=True, null=True)
    description = models.TextField()
    image = models.ImageField(blank=True, null=True)
    slug = models.SlugField(unique=True)

    def __str__(self):
        return self.title

class Post(models.Model):
    author = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
    title = models.CharField(max_length=200)
    text = models.TextField()
    created_date = models.DateTimeField(default=timezone.now)
    published_date = models.DateTimeField(blank=True, null=True)
    category = models.ForeignKey(Category, on_delete=models.CASCADE, blank=True, null=True)
    image = models.ImageField(blank=True, null=True)
    live = models.BooleanField(default=False)
    slug = models.SlugField(unique=True)

    def publish(self):
        self.published_date = timezone.now()
        self.save()

    def __str__(self):
        return self.title

    def get_absolute_url(self):
        return reverse('post-detail', kwargs={'slug': self.slug})

def create_slug(instance, new_slug=None):
    slug = slugify(instance.title)
    if new_slug is not None:
        slug = new_slug
    qs = Post.objects.filter(slug=slug).order_by("-pk")
    exists = qs.exists()
    if exists:
        new_slug = "%s-%s" %(slug, qs.first().pk)
        return create_slug(instance, new_slug=new_slug)
    return slug

def pre_save_post_reciever(sender, instance, *args, **kwargs):
    if not instance.slug:
        instance.slug = create_slug(instance)


pre_save.connect(pre_save_post_reciever, sender=Post)

观看次数:

class IndexView(ListView):
    model = Post
    queryset = Post.objects.filter(live=True)
    template_name = "public/index.html"

class PostEdit(object):
    model = Post
    fields = '__all__'
    success_url = '/'

class PostCreateView(LoginRequiredMixin, PostEdit, CreateView):
    fields = ['title', 'text', 'category', 'image']

    def form_valid(self, form):
        form.instance.author = self.request.user
        return super().form_valid(form)

class PostUpdateView(LoginRequiredMixin, PostEdit, UpdateView):
    fields = ['title', 'text', 'category', 'image']

如果有人对如何解决此问题有任何想法,那就太好了!

1 个答案:

答案 0 :(得分:2)

如果按照此定义行事:

class PostEdit(object):
    model = Post
    fields = '__all__'
    success_url = '/'    # <<<---

在您的情况下,success_url不是静态的,不能定义为属性。您必须这样改写get_success_url

def get_success_url(self):
     return self.get_object().get_absolute_url()

也可以看看这个answer

upd

如果重定向是如此简单,如Daniel Roseman所述,您根本不需要指定success_url-您想要的是default behavior

  

您甚至不需要为CreateView或UpdateView提供success_url-它们将在模型对象上使用get_absolute_url()(如果可用)。