You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
61 lines
2.2 KiB
61 lines
2.2 KiB
from django.shortcuts import render |
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from django.shortcuts import get_object_or_404 |
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from django.http import HttpResponse, HttpResponseRedirect |
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from django.http import Http404 |
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from .models import Choice, Question |
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from django.template import loader |
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from django.urls import reverse |
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# Create your views here. |
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def index(request): |
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latest_question_list = Question.objects.order_by('-pub_date')[:5] |
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# output = ', '.join([q.question_text for q in latest_question_list]) |
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# return HttpResponse(output) |
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# 模板使用方式1 |
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# template = loader.get_template('index.html') |
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# context = { |
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# 'latest_question_list': latest_question_list, |
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# } |
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# return HttpResponse(template.render(context, request)) |
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# 模板使用方法2 |
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context = { |
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'latest_question_list': latest_question_list, |
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} |
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return render(request, 'index.html', context) |
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def detail(request, question_id): |
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# return HttpResponse(f"You're looking at question {question_id}.") |
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# 添加404页面展示 方式1 |
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# try: |
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# question = Question.objects.get(pk=question_id) |
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# context = {'question': question} |
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# print(context) |
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# except Question.DoesNotExist: |
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# raise Http404("Question does not exist") |
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# return render(request, 'detail.html', context) |
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# 添加404页面展示 方式2 |
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question = get_object_or_404(Question, pk=question_id) |
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return render(request, 'detail.html', {'question': question}) |
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def result(request, question_id): |
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question = get_object_or_404(Question, pk=question_id) |
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return render(request, 'results.html', {'question': question}) |
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# return HttpResponse(f"You're looking at the result of question {question_id}.") |
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def vote(request, question_id): |
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question = get_object_or_404(Question, pk=question_id) |
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try: |
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selected_choice = question.choice_set.get(pk=request.POST['choice']) |
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except (KeyError, Choice.DoesNotExist): |
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return render(request, 'detail.html', {'question': question, 'error_message': "You didn't select a choice.", }) |
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else: |
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selected_choice.votes += 1 |
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selected_choice.save() |
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return HttpResponseRedirect(reverse('polls:result', args=(question_id,))) |
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# return HttpResponse(f"You're voting on question {question_id}")
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