함수 views

C:\projects\noori\polls\admin.py

from django.contrib import admin
from .models import Question

admin.site.register(Question)

 

C:\projects\noori\polls\models.py

from django.db import models
from django.utils import timezone
from datetime import datetime

# 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

 

C:\projects\noori\polls\urls.py

from django.urls import path, include
from .views import *

app_name = 'polls'

urlpatterns = [
    path('polls/', index, name="index"),
    path('polls/<int:question_id>/', detail, name="detail"),    
    path('polls/<int:question_id>/results/', results, name="results"),
    path('polls/<int:question_id>/vote/', vote, name="vote"),
    
]

 

C:\projects\noori\polls\views.py

from django.http import Http404, HttpResponse, HttpResponseRedirect
from django.shortcuts import get_object_or_404, render
from django.urls import reverse
from django.template import loader
from .models import Question, Choice

def index(request):
    latest_question_list = Question.objects.order_by('-pub_date')[:5]
    '''
    context = ', '.join([i.question_text for i in latest_question_list])
    return HttpResponse(context)    
    '''
    '''
    template = loader.get_template("polls/index.html")
    context ={"latest_question_list":latest_question_list}
    return HttpResponse(template.render(context, request))   
    '''
    context = {"latest_question_list": latest_question_list}
    return render(request, 'polls/index.html', context)



def detail(request, question_id): 
    '''
    try:
        question = Question.objects.get(pk=question_id)
    except Question.DoesNotExist:
        raise Http404("Question does not exist")
    context = {"question": question}
    return render(request, 'polls/detail.html', context)    
    '''   
    question = get_object_or_404(Question, pk=question_id)
    context = {"question": question}
    return render(request, "polls/detail.html", context)


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,)))

 

C:\projects\noori\templates\polls\index.html

{% if latest_question_list %}
    <ul>
        {% for question in latest_question_list %}
            <!-- 
            <li><a href="/polls/{{ question.id }}/">{{ question.question_text }}</a></li>            
            -->
            <li><a href="{% url 'polls:detail' question.id %}">{{ question.question_text }}</a></li>
        {% endfor %}
    </ul>
{% else %}
    <p>No polls are available.</p>
{% endif %}

C:\projects\noori\templates\polls\index.html

 

C:\projects\noori\templates\polls\detail.html

<!--
<h1>{{ question.question_text }}</h1>
<ul>
    {% for choice in question.choice_set.all %}
        {% if choice.vote %}
            <li>{{ choice.choice_text }} - {{ choice.vote }}</li>
        {% else %}
            <li>{{ choice.choice_text }} </li>
        {% endif %}
    {% endfor %}
</ul>
-->

<form action="{% url 'polls:vote' question.id %}" method="post">
{% csrf_token %}
<fieldset>
    <legend><h1>{{ question.question_text }}</h1></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>
<input type="submit" value="Vote">
</form>

 

C:\projects\noori\templates\polls\results.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>