MU
Maciej UrmańskiMarch 10, 2019, 1:01 p.m.
Django list of subscribed objects
Hi, I try to show user object from category which they subscribe. But don't know exacly how.
I have four models:
Board ( category )
Subject
Embed and Subscribe (foreign to user and to board)
class Board(models.Model): title = models.CharField(max_length=255, verbose_name='Tytuł') slug = AutoSlugField(populate_from='title', unique=True) image = models.ImageField(upload_to='board-cover', verbose_name='Tło kategorii', null=True, blank=True) body = models.TextField(verbose_name='Opis kategorii') author = models.ForeignKey(User, on_delete=models.CASCADE) created_at = models.DateTimeField(auto_now_add=True) class Subscribe(models.Model): user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='subscribed_users') board = models.ForeignKey(Board, on_delete=models.CASCADE, related_name='subscribed_boards') created_at = models.DateTimeField(auto_now_add=True) subscribe = models.BooleanField(default=False) class Subject(models.Model): title = models.CharField(max_length=255, verbose_name='Tytuł') slug = AutoSlugField(populate_from='title', unique=True) body = models.TextField(blank=True, verbose_name='Treść') image = models.ImageField(upload_to='subject', null=True, blank=True) author = models.ForeignKey(User, on_delete=models.CASCADE) active = models.BooleanField(default=True) created_at = models.DateTimeField(auto_now_add=True) board = models.ForeignKey(Board, on_delete=models.CASCADE, related_name='subjects', verbose_name='Kategoria') votes = GenericRelation(LikeDislike, related_query_name='subjectsvotes') class Embed(models.Model): url = models.URLField(max_length=255) title = models.CharField(max_length=255) description = models.TextField() thumbnail_url = models.URLField(max_length=255) html = models.TextField() author = models.ForeignKey(User, on_delete=models.CASCADE) created_at = models.DateTimeField(auto_now_add=True) board = models.ForeignKey(Board, on_delete=models.CASCADE, blank=True, null=True, related_name='embeds') votes = GenericRelation(LikeDislike, related_query_name='embedvotes')
In my views I try something like this:
def feed(request): embeds = Embed.objects.filter(author=request.user) subscribed_ids = request.user.subscribed_users.values_list('id', flat=True) actions = embeds.filter(author_id__in=subscribed_ids) actions = actions[:10] return render(request, 'boards/feed.html', {'actions': actions})
but nothing show up.
We recommend hosting TIMEWEB
Stable hosting, on which the social network EVILEG is located. For projects on Django we recommend VDS hosting.Do you like it? Share on social networks!
l
- laei
- April 23, 2024, 7:19 p.m.
C ++ - Test 004. Pointers, Arrays and Loops
- Result:10points,
- Rating points-10
Last comments
Qt Linux - Lesson 001. Autorun Qt application under Linux как сделать автозапуск для флэтпака, который не даёт создавать файлы в ~/.config - вот это вопрос ))
АК
Qt WinAPI - Lesson 007. Working with ICMP Ping in Qt Без строки #include <QRegularExpressionValidator> в заголовочном файле не работает валидатор.
Анатолий КононенкоFeb. 5, 2024, 12:50 p.m.
EVADec. 25, 2023, 9:30 p.m.
Boost - static linking in CMake project under Windows Сделал всё по-как у вас, но выдаёт ошибку [build] LINK : fatal error LNK1104: не удается открыть файл "libboost_locale-vc142-mt-gd-x64-1_74.lib" Хоть убей, не могу понять в чём дел…
Qt/C++ - Lesson 056. Connecting the Boost library in Qt for MinGW and MSVC compilers Для решения твой проблемы добавь в файл .pro строчку "LIBS += -lws2_32" она решит проблему , лично мне помогло.
Now discuss on the forum
DA
Unlock Your Aesthetic Potential: Explore MSC in Facial Aesthetics and Cosmetology in India Embark on a transformative journey with an msc in facial aesthetics and cosmetology in india . Delve into the intricate world of beauty and rejuvenation, guided by expert faculty and …
Dr Gangil AcademicsApril 20, 2024, 5:45 p.m.
Мобильное приложение на C++Qt и бэкенд к нему на Django Rest Framework Евгений, добрый день! Такой вопрос. Верно ли следующее утверждение: Любое Android-приложение, написанное на Java/Kotlin чисто теоретически (пусть и с большими трудностями) можно написать и на C+…
Павел ДорофеевApril 14, 2024, 12:35 p.m.
Вернуть старое поведение QComboBox, не менять индекс при resetModel Добрый день! У нас много проектов в которых используется QComboBox, в версии 5.5.1, когда модель испускает сигнал resetModel, currentIndex не менялся. В версии 5.15 при resetModel происходит try…
Hi,
it looks rightly.
Can you show print out of def feed. For example
May be you can write, I'm not sure
Hmm:
I print this and actions is empty. I try also with list and still the same.
may be, you want filter board instead of embed?
Now I get Board instead of embed. :D
Hmm in evileg You have too subscribe option to category articles I see. How You do this? :)
Before I try to add manytomanyfield to board instead of create new model Subscribe but i don't know how to query that way. Now I see in subscribe model too don't know how. :D
I have created subscriptions similar like LikeDislike model, because of I need generic Subscription for all types of content (It may be category of articles, forum, bookmarks, forum topics and so on).