Hi there,
I'm having trouble in filtering objects of a model based on another model's
foreign key. The scenario is, I've got a forum homepage and when a topic is
clicked, it opens its DetailView. Now if I try to get all answers in the
database there's no issue, but I want to get only the answers which are
there only for that particular topic.
here are my project files
views.py
from django.views import generic
> from django.views.generic.edit import CreateView
> from .models import Topic, Answer
> from .forms import TopicForm
> from django.contrib.auth.decorators import login_required
>
> class IndexView(generic.ListView):
> template_name = 'index.html'
> context_object_name = 'topic_list'
> def get_queryset(self):
> return Topic.objects.all()
>
>
class TopicDetailView(generic.DetailView):
> model = Topic
> context_object_name = 'topic'
> template_name = 'topicdetail.html'
>
def get_context_data(self, **kwargs):
> context = super(TopicDetailView, self).get_context_data(**kwargs)
> context["answer"] = Answer.objects.filter(<can't figure out this>)
> return context
>
class TopicCreateView(CreateView):
> model = Topic
> form_class = TopicForm
> template_name = 'topic_form.html'
models.py
from django.db import models
> from oauth.models import UserProfile
> from ckeditor_uploader.fields import RichTextUploadingField
> from django.core.urlresolvers import reverse
>
>
class Topic(models.Model):
> # Choices
> CAT_CHOICES = (
> ('Q', 'Question'),
> ('F', 'Feedback'),
> )
> # Topic Database Model
> owner = models.ForeignKey(UserProfile, on_delete=models.CASCADE)
> category = models.CharField(max_length=3, choices=CAT_CHOICES,
> default='Q')
> title = models.CharField(max_length=256)
> content = RichTextUploadingField(blank=True)
> slug = models.SlugField(unique=True)
> views = models.PositiveIntegerField(default=0)
> answers = models.PositiveIntegerField(default=0)
> tags = models.CharField(max_length=50)
> created_at = models.DateTimeField(auto_now_add=True)
>
def get_absolute_url(self):
> return reverse('forum:detail', kwargs={'pk': self.pk})
>
def __str__(self):
> return self.title
>
> class Answer(models.Model):
> topic = models.ForeignKey(Topic, on_delete=models.CASCADE)
> owner = models.ForeignKey(UserProfile, on_delete=models.CASCADE)
> content = RichTextUploadingField(blank=True)
> created_at = models.DateTimeField(auto_now_add=True)
> total_votes = models.SmallIntegerField(default=0)
urls.py
from django.conf.urls import url
> from forum import views
> from django.contrib.auth.decorators import login_required
>
app_name = 'forum'
>
urlpatterns = [
> url(r'^$', login_required(views.IndexView.as_view()), name='index'),
> url(r'^topic/(?P<pk>[0-9])/$',
> login_required(views.TopicDetailView.as_view()), name='detail'),
> url(r'^topic/add/$', login_required(views.TopicCreateView.as_view()),
> name='add_topic'),
> ]
What do I need to do to accomplish the same?
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