Question

我在Django有一个博客项目，我希望能够根据帖子的类型过滤我的帖子，例如旅游帖子，编程帖子。因此，在我的模板中，我需要通过post slug和类型slug来过滤帖子，但我得到了：

NoReverseMatch at / 反向＆＃39; getPost＆＃39;使用关键字参数＆＃39; {＆＃39; categoryTypeSlug＆＃39;：＆＃39;＆＃39;，＆＃39; postTitleSlug＆＃39;：＆＃39;＆＃39;}＆＃39;未找到。尝试了1种模式：[＆＃39;类别/（？P [\ w \ - ] +）/（？P [\ w \ - ] +）/ $＆＃39;]

我的简化模板（getCatTypePosts.html）：

{% block content %} 
  {% for post in posts %}
    {% if post.show_in_posts %} 

  <a href="{% url 'getPost' categoryTypeSlug postTitleSlug  %}">
      <img src="{{ MEDIA.URL }} {{post.editedimage.url}}" alt="image-{{post.title}}"/>

    {% endif %}
  {% endfor %}
{% endblock content %}

我的models.py

class categoryType(models.Model):

    title = models.CharField(max_length=200)
    categoryTypeSlug = models.SlugField(unique=True)

    def __str__(self):
        return self.title

    class Meta:
        verbose_name_plural = "categoryTypes"

    def save(self, *args, **kwargs):
        self.categoryTypeSlug = slugify(self.title)
        super(categoryType, self).save(*args, **kwargs)


class Post(models.Model):

    title = models.CharField(max_length=200)
    postTitleSlug = models.SlugField()
    summary = models.CharField(max_length=500, default=True)
    body = RichTextUploadingField()
    pub_date = models.DateTimeField(default=timezone.now)
    category = models.ManyToManyField('Category')
    categoryType = models.ManyToManyField('categoryType')
    author = models.ForeignKey(User, default=True)
    authorSlug = models.SlugField()
    editedimage = ProcessedImageField(upload_to="primary_images", 
         null=True,
                            processors = [Transpose()],
                            format="JPEG")
    show_in_posts = models.BooleanField(default=True)

    def __str__(self):
        return self.title

    def save(self, *args, **kwargs):
        self.postTitleSlug = slugify(self.title)
        self.authorSlug = slugify(self.author)
        super(Post, self).save(*args, **kwargs)

观看次数

def getCatTypePosts(request, categoryTypeSlug='Travel'):

    posts = Post.objects.all()
    posts = posts.filter(categoryType__title='Travel')
    posts = posts.order_by('-pub_date')

    context = {
        'posts':posts,
              }

    return render(request, 'posts/getCatTypePosts.html', context)

def getPost(request, postTitleSlug, categoryTypeSlug):

    post = Post.objects.all()
    categoryTypeSlug = 
           post.filter(categoryType__categoryTypeSlug=categoryTypeSlug)
    postTitleSlug = post.filter(post.postTitleSlug)

    context = {
         'post':post,
         'categoryTypeSlug':categoryTypeSlug,
         'postTitleSlug':postTitleSlug,
          }

     return render(request, 'posts/getPost.html', context)

网址conf

urlpatterns = [

    url(r'^$', views.getCatTypePosts, name='home'),

    url(r'^categories/(?P<categoryTypeSlug>[\w\-]+)/(?P<postTitleSlug> 
       [\w\-]+)/$',  views.getPost, name='getPost'),

    url(r'^posts/(?P<categoryTypeSlug>[\w\-]+)/$', 
        views.getCatTypePosts, name = 'getCatTypePosts'),

            ]

任何帮助非常感谢。

Answer 1

您的错误发生在/，由getCatTypePosts处理。此视图不会向上下文添加categoryTypeSlug和postTitleSlug，因此您的{% url %}代码会显示错误消息，说明关键字参数为''。

由于{% url %}代码位于{% for post in posts %} for循环内，因此您可以使用post.postTitleSlug代替postTitleSlug。如何替换categoryType并不太明显，因为它是一个多对多的领域 - 目前尚不清楚你想在那里使用什么价值。您可以使用post.categoryType.first.categoryTypeSlug，只要每个帖子至少有一个相关类别。

Django url有多个slug，没有反向匹配错误

1 个答案: