Django url 有多个 slug，没有反向匹配错误

Question

我在 Django 中有一个博客项目，我希望能够根据 post 的类型过滤我的 posts，例如 Travel posts，Programming post秒。因此，在我的模板中，我需要通过 post slug 和 type slug 过滤 post，但我得到：

NoReverseMatch at / Reverse for 'getPost' with keyword arguments '{'categoryTypeSlug': '', 'postTitleSlug': ''}' not found. 1 pattern(s) tried: ['categories/(?P[\w\-]+)/(?P[\w\-]+)/$']

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)

URL 配置文件

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'),

            ]

非常感谢任何帮助。

Answer 1

您的错误发生在 /，由 getCatTypePosts 处理。此视图不会将 categoryTypeSlug 和 postTitleSlug 添加到上下文中，因此您的 {% url %} 标记给出了一个错误，指出关键字参数是 ''.

由于 {% url %} 标记位于 {% for post in posts %} for 循环内，您可以使用 post.postTitleSlug 而不是 postTitleSlug。如何替换 categoryType 不太明显，因为它是多对多字段 - 不清楚您想在那里使用什么值。您可能会使用 post.categoryType.first.categoryTypeSlug，只要每个 post 至少有一个相关类别。

Django url 有多个 slug，没有反向匹配错误

Django url with multiple slugs, no reverse match error

django

django-templates

django-models

django-urls

django-views