[Django] 뷰 (View)

뷰 (View)

 

 

views.py는 뷰 로직을 코딩하는 가장 중요한 파일이다. 장고에서 함수형과 클래스형 두가지 뷰로 구분한다. 장고가 제공하는 제네릭 뷰를 사용하고 재활용 및 확장성 측면에서 클래스형 뷰를 쓰는 것이 좋다.

 

투표 어플리케이션 만들기

 

import logging
from django.http import HttpResponseRedirect
from django.urls import reverse
from django.shortcuts import render, get_object_or_404
from polls.models import Question, Choice

# Create your views here.
def index(request):
    latest_question_list = Question.objects.all().order_by('-pub_date')[:5]
    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 vote(request, question_id):
    question = get_object_or_404(Question, pk=question_id)
    
    try:
        logger = logging.getLogger('project.interesting.stuff')
        logger.debug('TEST')
        selected_choice = question.choice_set.get(pk=request.POST['choice'])
        
    except (KeyError, Choice.DoesNotExist):
        return render(request, 'polls/detail.html', {
            'question': question,
            'error_message': "You didn't select a choice.",
        })
        
    else:
        selected_choice.votes += 1
        selected_choice.save()
        
        return HttpResponseRedirect(reverse('polls:results', args=(question.id,)))

def results(request, question_id):
    question = get_object_or_404(Question, pk=question_id)
    
    return render(request, 'polls/results.html', {'question': question})