django - The function object has no attribute 'entry_set'

Question

Something about Django Just as the photo show I don't know why there is has a AttributeError

from django.shortcuts import render
from .models import Topic
def topic(request, topic_id):
   topics = Topic.objects.get(id=topic_id)
   entries = topic.entry_set.order_by('-date_added')
   context = {'topic': topic, 'entries': entries}
return render(request, 'learning_logs/topic.html', context)

Answer 1

The problem is probably in your topic function. You assign one topic to the topics variable and then try to get an entry_set off a variable called topic instead of topics. Since you're only getting one topic it would make more sense to change the topics variable to singular topic:

def topic(request, topic_id):
   topic = Topic.objects.get(id=topic_id)
   entries = topic.entry_set.order_by('-date_added')
   context = {'topic': topic, 'entries': entries}
   return render(request, 'learning_logs/topic.html', context)