Sorry, I might have mixed things a bit. You can use "link in category.link_set" or "category == link.category".
link_set is set by django when you declared the foreignkey 2016-08-21 19:42 GMT+02:00 Yunus <[email protected]>: > Hm. I get it but it's look like there is no attribute category_set in link. > Given me this error: 'Link' object has no attribute 'category_set' > > Here is my models: > > #category/models.py > class Category(models.Model): > name = models.CharField("Name", max_length=100) > user = models.ForeignKey(settings.AUTH_USER_MODEL, null=True) > time = models.DateTimeField(auto_now_add=True) > slug = models.SlugField(max_length=100) > objects = models.Manager() > > > def __str__(self): > return self.name > > > def get_absolute_url(self): > return reverse('category:category_detail', kwargs={"name": self.name,}) > > > #links/models.py > class Link(models.Model): > title = models.CharField("Headline", max_length=100) > submitter = models.ForeignKey(settings.AUTH_USER_MODEL, null=True) > submitted_on = models.DateTimeField(auto_now_add=True) > rank_score = models.FloatField(default=0.0) > url = models.URLField("URL", max_length=250) > category = models.ForeignKey(Category, null=True) > description = models.TextField(blank=True) > slug = models.SlugField(unique=True) > img = models.ImageField(upload_to="thumbnail/", blank=True) > image_og = models.ImageField(upload_to="thumbnail/", blank=True, > default="/static/images/entry/default.png") > with_votes = LinkVoteCountManager() > objects = models.Manager() > > > def __str__(self): > return self.title > > > def get_absolute_url(self): > return reverse('link:link_detail', kwargs={"category": > self.category.slug, "slug": self.slug, > 'pk': str(self.id) > }) > .... > > > On Sunday, August 21, 2016 at 2:56:57 PM UTC+3, ludovic coues wrote: >> >> You need to check somewhere that the category exist and that your item >> belong to the category. >> The get object method seems like a good place to do it. Something like >> that should do the trick >> >> def get_object(self, queryset=None): >> """ Return a 404 code if >> * no link with given slug/id >> * no category with given slug >> * link isn't part of the right category >> """" >> link = get_object_or_404(Link, >> pk=self.kwargs['pk'],slug=self.kwargs['slug']) >> category = get_object_or_404(Category, >> slug=self.kwargs['category']) >> if not category in link.category_set: >> raise Http404 >> return link >> >> 2016-08-21 11:01 GMT+02:00 'voger' via Django users >> <[email protected]>: >> > I barely understand django my self but I hope I am pointing you in the >> > right >> > direction. >> > >> > 1. I don't understand what the (?:/(?P<slug>[\w\d-]+))?/ part in your >> > pattern is supposed to do. My regexp-fu is weak so I can't comment on >> > that >> > >> > 2. Your url will match and pass to the view whatever url you give it. So >> > even if you give a pk and slug that don't exist in database, still the >> > view >> > will get called as long as the regexp matches. >> > >> > 3. In your view you check the db against the pk and slug and if not >> > found >> > __the view__ rises 404. >> > >> > 4. You don't check if category exist in database and you don't rise 404 >> > if >> > not. In this case it is assumed it is always right. >> > >> > >> > On 20/08/2016 06:10 μμ, Yunus wrote: >> >> >> >> Hello, >> >> >> >> I want to two slugs in one URL pattern. These slugs from different >> >> models. I have a model Link with a many to one relationship with a >> >> model >> >> category. >> >> >> >> Actually these two slugs is working. But one of the slugs is accepting >> >> whatever I write in the category_slug section of the url. >> >> >> >> Let's say:I >> >> write 127.0.0.1:8000/there_is_no_name_like_that_in_the_database/pk/slug >> >> this. >> >> I am going to this page but there is no category with this name. So, >> >> basically is accepting whatever I write. >> >> *#links/views.py* >> >> | >> >> classLinkDetailView(FormMixin,DetailView): >> >> model =Link >> >> context_object_name ='link' >> >> form_class =CommentForm >> >> success_url =reverse_lazy('home') >> >> >> >> >> >> defget_object(self,queryset=None): >> >> >> >> >> >> >> >> returnget_object_or_404(Link,pk=self.kwargs['pk'],slug=self.kwargs['slug']) >> >> >> >> >> >> ... >> >> | >> >> >> >> *#links/urls.py* >> >> | >> >> urlpatterns =[ >> >> >> >> >> >> ... >> >> >> >> url( >> >> >> >> regex=r'^k/(?P<category>[\w-]+)/(?P<pk>\d+)(?:/(?P<slug>[\w\d-]+))?/$', >> >> view=views.LinkDetailView.as_view(), >> >> name='link_detail' >> >> ), >> >> >> >> >> >> ... >> >> ] >> >> | >> >> >> >> -- >> >> You received this message because you are subscribed to the Google >> >> Groups "Django users" group. >> >> To unsubscribe from this group and stop receiving emails from it, send >> >> an email to [email protected] >> >> <mailto:[email protected]>. >> >> To post to this group, send email to [email protected] >> >> <mailto:[email protected]>. >> >> Visit this group at https://groups.google.com/group/django-users. >> >> To view this discussion on the web visit >> >> >> >> >> >> https://groups.google.com/d/msgid/django-users/0b8482ee-5e64-4ee8-a664-d1d938767bd6%40googlegroups.com >> >> >> >> >> >> <https://groups.google.com/d/msgid/django-users/0b8482ee-5e64-4ee8-a664-d1d938767bd6%40googlegroups.com?utm_medium=email&utm_source=footer>. >> >> For more options, visit https://groups.google.com/d/optout. >> > >> > >> > -- >> > You received this message because you are subscribed to the Google >> > Groups >> > "Django users" group. >> > To unsubscribe from this group and stop receiving emails from it, send >> > an >> > email to [email protected]. >> > To post to this group, send email to [email protected]. >> > Visit this group at https://groups.google.com/group/django-users. >> > To view this discussion on the web visit >> > >> > https://groups.google.com/d/msgid/django-users/c9904d3f-f162-cfa5-c9e7-b53330225742%40yahoo.gr. >> > >> > For more options, visit https://groups.google.com/d/optout. >> >> >> >> -- >> >> Cordialement, Coues Ludovic >> +336 148 743 42 > > -- > You received this message because you are subscribed to the Google Groups > "Django users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/django-users. > To view this discussion on the web visit > https://groups.google.com/d/msgid/django-users/0e73ba29-be8d-46a2-aaa2-04cac94bfffa%40googlegroups.com. > > For more options, visit https://groups.google.com/d/optout. -- Cordialement, Coues Ludovic +336 148 743 42 -- You received this message because you are subscribed to the Google Groups "Django users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/django-users. To view this discussion on the web visit https://groups.google.com/d/msgid/django-users/CAEuG%2BTao7XuJJbkFzP_mKu9kcDXNyPs%2BS2jSVzi2M%2BGiFAFrPw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
