Django中文官方版08-创建简单表单

注：表单传递方式类似jsp+servlet

1.更新polls/templates/polls/detail.html内容

输入：

<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="choice" id="choice{{ forloop.counter }}" value="{{ choice.id }}" />    <label for="choice{{ forloop.counter }}">{{ choice.choice_text }}</label><br />{% endfor %}<input type="submit" value="Vote" /></form>

注：{{}}代表参数值，{%%}代表语意标签

2.打开polls/urls.py文件

输入以下内容：

url(r'^(?P<question_id>[0-9]+)/vote/$', views.vote, name='vote'),

注：使用vote方法来处理表单提交的内容

3.打开polls/views.py文件

修改vote方法的内容：

from django.shortcuts import get_object_or_404, renderfrom django.http import HttpResponseRedirect, HttpResponsefrom django.urls import reversefrom .models import Choice, 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,)))

注：request_POST['choice']代表通过post方式传递接收道德参数choice

4.处理表单结束后跳转处理

打开polls/views.py

修改results方法内容：

from django.shortcuts import get_object_or_404, renderdef results(request, question_id):    question = get_object_or_404(Question, pk=question_id)    return render(request, 'polls/results.html', {'question': question})

5.添加results.html模板文件

在template/polls下面添加results.html文件

输入以下内容：

<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>

6.启动runserver，测试表单提交结果

python manage.py runserver

输入127.0.0.1:8080/polls/1/




原文摘自官方地址https://docs.djangoproject.com/en/1.11/intro/tutorial04/，本文只做精简化翻译，详细内容可去指定地址阅读