Django站点地图'Post'对象没有属性'get_absolute_url'？

Question

我正在创建一个简单的 django 1.9 应用程序，其中包含一个博客，并且我希望该站点具有由网站页面和博客文章条目组成的站点地图。到目前为止，我能够构建一个将静态页面生成为站点地图的站点地图但是博客帖子站点地图给了我一个错误'Post' object has no attribute 'get_absolute_url 这是我的代码。有人请告诉我哪里出错了。

sitemaps.py

from django.contrib import sitemaps

from django.contrib.sitemaps import Sitemap

from django.core.urlresolvers import reverse

from administration.models import Post


class StaticSitemap(sitemaps.Sitemap):

      changefreq = "daily"

      priority = 1.0



     def items(self):

          return ['administration:index', 'administration:about']



     def location(self, item):
          return reverse(item)



class PostSitemap(Sitemap):

      changefreq = "daily"

      priority = 0.5


      def items(self):
          return Post.objects.all()`

models.py

class Post(models.Model):
    STATUS_CHOICES = (('draft', 'Draft'),('published', 'Published'),)
    featured_image = models.ImageField(upload_to="Photos/posts/images", blank=True, null=True)
    post_short_description = models.TextField(default="No description available")
    title = models.CharField(max_length=250)
    slug = models.SlugField(max_length=250, unique_for_date='publish')
    category = models.ForeignKey(Category)
    tag = models.ManyToManyField(Tag)
    author = models.ForeignKey(User,related_name='blog_posts',on_delete=models.CASCADE)
    body = RichTextField()
    publish = models.DateTimeField(default=timezone.now)
    created = models.DateTimeField(auto_now_add=True)
    updated = models.DateTimeField(auto_now=True)
    status = models.CharField(max_length=10, choices=STATUS_CHOICES,default='draft')

    class Meta:
        ordering = ('-publish',)

    def __str__(self):
        return self.title

urls.py

from django.conf.urls import include, url
from django.contrib import admin
from django.conf import settings
from django.conf.urls.static import static
from django.contrib.sitemaps.views import sitemap
from administration.sitemaps import PostSitemap, StaticSitemap

sitemaps = {
   'post':PostSitemap,'static':StaticSitemap
}

urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^', include('administration.urls')),
    url(r'^sitemap\.xml$', sitemap, {'sitemaps': sitemaps}, 
    name='django.contrib.sitemaps.views.sitemap'),
    url(r'^robots\.txt', include('robots.urls')),
    url(r'^', include('cms.urls'))
]+ static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

Answer 1

当你使用Sitemap类并且不自己实现location()方法时，默认是在每个对象上调用get_absolute_url()。

https://docs.djangoproject.com/en/2.1/ref/contrib/sitemaps/#a-simple-example 的文档说：

此示例中没有定位方法，但您可以提供它以指定对象的 URL。默认情况下，location() 在每个对象上调用 get_absolute_url() 并返回结果。

因此，您应该在您的PostSitemap 上实现location()，或者在您的Post 模型上实现get_absolute_url()。