Display answer in a Django website

Question

I work on a small app in Django, a website where a student puts a question using a form and the teacher will answer from admin site. The problem is that I can not display the answer and I don't know what I'm doing wrong. I attach models, template and view.

models.py

from django.db import models
from datetime import datetime
from django.db.models import CASCADE

    class Question(models.Model):
        title = models.CharField(max_length=120)
        question_content = models.TextField()
        date = models.DateTimeField(blank=True, null=True, default=datetime.now)

        class Meta:
            ordering = ('-date',)

        def __str__(self):
            return self.title


    class Answer(models.Model):
        question = models.ForeignKey(Question, related_name='answers', on_delete=CASCADE)
        answer_content = models.TextField()
        created = models.DateTimeField(auto_now_add=True)

        class Meta:
            ordering = ('-created',)

        def __str__(self):
            return 'Answer to {}'.format(self.question)

views.py

from django.core.paginator import Paginator, PageNotAnInteger, EmptyPage
from django.shortcuts import render, render_to_response
from django.views.decorators.csrf import csrf_exempt
from django.views.generic import ListView

from registration.forms import RegistrationForm, QuestionForm
from registration.models import *


def question(request):
    if request.method == 'POST':
        form = QuestionForm(request.POST)
        if form.is_valid():
            form.save()

        questions = Question.objects.all()
        return render(request, 'posturi.html', {'question': questions})

    else:
        # if post request is not true, returning blog
        form = QuestionForm()
        return render(request, 'blog.html', {'form': form})



def question_list(request):
    questions = Question.objects.all()
    answers = question.answers //  this is the problem i can not solve


    paginator = Paginator(questions, 6)  # 6 question in each page
    page = request.GET.get('page')
    try:
        questions = paginator.page(page)
    except PageNotAnInteger:
        # If page is not an integer deliver the first page
        questions = paginator.page(1)
    except EmptyPage:
        # If page is out of range deliver last page of results
        questions = paginator.page(paginator.num_pages)

    return render(request, 'posturi.html', {'question': questions, 'answer': answers})

posturi.html

<div class="container">
    <div class="row justify-content-center col-md-10 col-md-offset-1">
    {% for questions in question %}
        <div class=" card ">
            <div class="card-header"><h3>{{ questions.title }} :</h3></div>
            <hr>
            <div class="card-text">{{ questions.question_content | linebreaks }}</div>
            <div class="card-footer"><h4>{{ questions.date }}</h4></div>
            {% for answers in question.answer_set.all %}
                <div class="card-header"><h3>Raspuns la  : "{{ answers.question.title }}"</h3></div>
                <hr>
                <div class="card-text">{{ answers.answer_content | linebreaks }}</div>
                <div class="card-footer"><h4>{{ answers.created }}</h4></div>
                {% empty %}
                <div class="card-text"><h4>Fara raspuns.</h4></div>
            {% endfor %}
        </div>
    {% endfor %}
    </div>
</div>

The error i get is : 'function' object has no attribute 'answer'. Can anyone help me to understand how to display the answers? I read a lot of articles but nothing helped. Thanks.

This is literally the structure from the official tutorial. Have you read through that? Why not? — Daniel Roseman, May 30 '18 at 08:02
Plus, you don't even need that line; you don't need to send `answers` to the template separately as you are already iterating through the related set in the template. — Daniel Roseman, May 30 '18 at 08:03

score 0 · Answer 1 · answered May 30 '18 at 07:59

0

It should be question.answers.all() instead of just question.answers. For further information, you can have a look here.

answered May 30 '18 at 07:59

MEGH VIPUL THAKKAR

1
1

score 0 · Answer 2 · answered May 30 '18 at 08:03

question is the function you have defined in your views.py which is why the error says

'function' object has no attribute 'answer'

You probably want to use questions defined in the previous line

def question_list(request):
    questions = Question.objects.all()
    answers = questions.answers

score 0 · Answer 3 · answered Jun 22 '18 at 11:15

Thanks for your time; finally i find the right answer: to get the answers displayed i use 'select_related()' like in :

def question_list(request): questions = Question.objects.all() answers = Answer.objects.select_related()

return render(request, 'posturi.html', {'question': questions, 'answer': answers}

and in template : {% for answers in answer %} .... {% endfor %}

Maybe someone need this.

Display answer in a Django website

3 Answers3