问题
I am building a simple social network in django.
In the "home" of my social, I have the list of all posts published by all users, with author and publishing date. The publishing date have a link to a url that should return the detail view of a specific post published by a user.
However, as I click on it, it shows me the list of all posts published by its author (this also works when I click on the author link of the post).
So both
www.mysocial.com/posts/by/ciccio/7/
and
www.mysocial.com/posts/by/ciccio/
take me to the same page, that is ciccio's posts list.
I am going to show urls.py, views.py and models.py that all are contained in my "posts" app (myproject > posts)
Here is my urls.py
# shows all user posts
url(r'by/(?P<username>[-\w]+)',
views.UserPosts.as_view(),
name='for_user'),
# shows specific post
url(r'by/(?P<username>[-\w]+)/(?P<pk>\d+)/$',
views.PostDetail.as_view(),
name='single'),
my views.py
class PostList(SelectRelatedMixin, generic.ListView):
model = Post
select_related = ('user', 'group')
class UserPosts(generic.ListView):
model = models.Post
template_name = 'posts/user_post_list.html'
def get_queryset(self):
try:
#prende i post fatti dal'username che è lo stesso di quello che è loggato per guardarli
self.post_user = User.objects.prefetch_related('posts').get(username__iexact=self.kwargs.get('username'))
except User.DoesNotExist:
raise Http404
else:
return self.post_user.posts.all()
def get_context_data(self,**kwargs):
context = super().get_context_data(**kwargs)
context['post_user'] = self.post_user
return context
class PostDetail(SelectRelatedMixin, generic.DetailView):
model = models.Post
select_related = ('user', 'group') #group senza apostrofo?
def get_queryset(self):
queryset = super().get_queryset()
return queryset.filter(
user__username__iexact=self.kwargs.get('username'),
# maybe smth is needed here?
)
my models.py
User = get_user_model()
# Create your models here.
class Post(models.Model):
user = models.ForeignKey(User, related_name="posts", on_delete=models.CASCADE)
created_at = models.DateTimeField(auto_now=True)
message = models.TextField()
message_html = models.TextField(editable=False)
group = models.ForeignKey(Group, related_name="posts", null=True, blank=True, on_delete=models.CASCADE)
def __str__(self):
return self.message
def save(self, *args, **kwargs):
self.message_html = m.html(self.message)
# in questo modo quando si fa un markdon si mette un link nel loro post
super().save(*args, **kwargs)
def get_absolute_url(self):
return reverse('posts:single', kwargs={'username':self.user, 'pk':self.pk})
class Meta:
ordering = ['-created_at']
unique_together = ['user', 'message']
my piece of template showing author and publishing date of a post:
<span class="username">
<!-- mi porta a tutti i post fatti da quell'user -->
<a href="{% url 'posts:for_user' username=post.user.username %}">@{{ post.user.username }}</a>
</span>
<a> – </a>
<!-- il time tag posta il tempo -->
<time class="time">
<a href="{% url 'posts:single' username=post.user.username pk=post.pk %}">{{ post.created_at }}</a>
</time>
The model "User" is django's default models.User
The problem must be in PostDetail view, since I verified that by clicking on the url, my template shows the post correct pk (post.pk)
Maybe a filter is missing in views? see my # comment
回答1:
A /$ was missing at the end of the first url:
url(r'by/(?P<username>[-\w]+)/$',
views.UserPosts.as_view(),
name='for_user'),
But I still can't understend how could the url used to display the view showing all users's posts influence the behaviour of the url that should show only a specific post.
来源：https://stackoverflow.com/questions/61238712/cant-get-the-detail-view-of-a-post-in-a-social-network-project