Issue
I'm in the process of making a poll app in django. I'm having trouble with changing my "vote" view into class. I'm asking someone for help with this. Below I show a part of my code in views, models and urls python file and some template.
polls/views.py:
from django.http import HttpResponseRedirect
from django.shortcuts import get_object_or_404, render
from django.urls import reverse
from django.views import generic
from django.utils import timezone
from .models import Choice, Question, Comment
#other view
class DetailView(generic.DetailView):
model = Question
template_name = 'polls/detail.html'
def get_queryset(self):
return Question.objects.filter(pub_date__lte=timezone.now())
#...
#other view
def vote(request, slug):
question = get_object_or_404(Question, slug=slug)
try:
selected_choice = question.choice_set.get(pk=request.POST['choice'])
except (KeyError, Choice.DoesNotExist):
return render(request, 'polls/detail.html', {
'question': question,
'error_message': "Nie wybrałeś żadnej opcji.",
})
else:
selected_choice.votes += 1
selected_choice.save()
return HttpResponseRedirect(reverse('polls:results', args=(question.slug,)))
#other views
polls/models.py:
from django.utils import timezone
from django.db import models
from django.contrib import admin
from django.urls import reverse
class Question(models.Model):
question_text = models.CharField(max_length=200)
pub_date = models.DateTimeField('date published')
slug = models.SlugField(null=True)
def __str__(self):
return self.question_text
def get_absolute_url(self):
return reverse('polls:detail', kwargs={'slug': self.slug})
#...
#other models
polls/urls.py:
from django.urls import path
from . import views
app_name = 'polls'
urlpatterns = [
path('', views.IndexView.as_view(), name='index'),
path('<slug:slug>/', views.DetailView.as_view(), name='detail'),
path('<slug:slug>/wyniki', views.ResultsView.as_view(), name='results'),
path('<slug:slug>/glosowanie', views.vote, name='vote'),
#...
]
polls/templates/polls/detail.html:
<body>
#...
<form action="{% url 'polls:vote' question.slug %}" method="POST">
{% csrf_token %}
<fieldset>
<legend><h3>{{ question.question_text }}</h3></legend>
{% if error_message %}<p><strong>{{ error_message }}</strong></p>{% endif %}
{% for choice in question.choice_set.all %}
<input type="radio" name="choice" id="choice{{ forloop.counter }}" value="{{ choice.id }}">
<label for="choice{{ forloop.counter }}">{{ choice.choice_text }}</label><br>
{% endfor %}
</fieldset>
<br>
<input class="btn btn-primary" type="submit" value="Głosuj">
</form>
#...
</body>
Solution
this is the way
from django.views import View
class vote(View):
def post (self, request, slug):
question = get_object_or_404(Question, slug=slug)
try:
selected_choice = question.choice_set.get(pk=request.POST['choice'])
except (KeyError, Choice.DoesNotExist):
return render(request, 'polls/detail.html', {
'question': question,
'error_message': "Nie wybrałeś żadnej opcji.",
})
else:
selected_choice.votes += 1
selected_choice.save()
return HttpResponseRedirect(reverse('polls:results', args=(question.slug,)))
and in your urls.py
from .views import vote
path('vote/',vote.as_view(),name='Vote')
Answered By - Blackranger
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