Hi All,
Page navigation not working correctly instead it showing error messge as " You
didn't select a choice" . Can some one put light on this .
Regards,
Yasar Arafath K
*My views.py*
from django.shortcuts import get_object_or_404, render
from django.http import Http404
from django.http import HttpResponse,HttpResponseRedirect
from django.shortcuts import get_object_or_404,render
from django.urls import reverse
from .models import Choice,Question
def index(request):
latest_question_list=Question.objects.order_by('pub_date')[:3]
context={'latest_question_list':latest_question_list}
return render(request,'polls/index.html',context)
def detail(request, question_id):
question = get_object_or_404(Question, pk=question_id)
return render(request, 'polls/detail.html', {'question': question})
def results(request, question_id):
question = get_object_or_404(Question, pk=question_id)
return render(request, 'polls/results.html', {'question': question})
def vote(request, question_id):
question = get_object_or_404(Question, pk=question_id)
try:
selected_choice = question.choice_set.get(pk=request.POST['choice'])
except (KeyError, Choice.DoesNotExist):
# Redisplay the question voting form.
return render(request, 'polls/detail.html', {
'question': question,
'error_message': "You didn't select a choice.",
})
else:
selected_choice.votes += 1
selected_choice.save()
# Always return an HttpResponseRedirect after successfully dealing
# with POST data. This prevents data from being posted twice if a
# user hits the Back button.
return HttpResponseRedirect(reverse('polls:results',
args=(question.id,)))
*My result.html*
<h1>{{ question.question_text }}</h1>
<ul>
{% for choice in question.choice_set.all %}
<li>{{ choice.choice_text }} -- {{ choice.votes }} vote{{
choice.votes|pluralize }}</li>
{% endfor %}
</ul>
<a href="{% url 'polls:detail' question.id %}">Vote again?</a>
*my urls.py*
from django.urls import path
from . import views
app_name = 'polls'
urlpatterns = [
# ex: /polls/
path('', views.index, name='index'),
# ex: /polls/5/
path('<int:question_id>/', views.detail, name='detail'),
# ex: /polls/5/results/
path('<int:question_id>/results/', views.results, name='results'),
# ex: /polls/5/vote/
path('<int:question_id>/vote/', views.vote, name='vote'),
]
*my details.html*
<h1>{{ question.question_text }}</h1>
{% if error_message %}<p><strong>{{ error_message }}</strong></p>{% endif %}
<form action="{% url 'polls:vote' question.id %}" method="post">
{% csrf_token %}
{% for choice in question.choice_set.all %}
<input type="radio" name="jijjj" id="choice{{ forloop.counter }}" value="{{
choice.id }}">
<label for="choice{{ forloop.counter }}">{{ choice.choice_text
}}</label><br>
{% endfor %}
<input type="submit" value="vote here ">
</form>
*my index.html*
{% if latest_question_list %}
<ul>
{% for question in latest_question_list %}
<li><a href="{% url 'polls:detail' question.id %}">{{
question.question_text }}</a></li>
{% endfor %}
</ul>
{% else %}
<p>No polls are available.</p>
{% endif %}
my models.py
import datetime
from django.db import models
from django.utils import timezone
# Create your models here.
class Question(models.Model):
question_text=models.CharField(max_length=200)
pub_date=models.DateTimeField('date published')
def __str__(self):
return self.question_text
def was_published_recently(self):
return self.pub_date >= timezone.now() - datetime.timedelta(days=1)
class Choice(models.Model):
question =models.ForeignKey(Question,on_delete=models.CASCADE)
choice_text = models.CharField(max_length=200)
votes = models.IntegerField(default=0)
def __str__(self):
return self.choice_text
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