Question

编辑：

我是django的新手，我需要添加两个数字x和y。

x和y是来自用户的输入。

这是我的views.py

from django.http import HttpResponseRedirect
from django.http import HttpResponse
from django.shortcuts import render
from .forms import InputForm

def add(request):
    if request.method == 'POST':        # If the form has been submitted...
     form = InputForm(request.POST)     # A form bound to the POST data
     if form.is_valid():                # All validation rules pass
        cd = form.cleaned_data     # Process the data in form.cleaned_data
        input1 = cd['x']
        input2 = cd['y']
        output = input1 + input2
        return HttpResponseRedirect(request,'/thanks/')# Redirect to new url
   else:
        form = InputForm()   # An unbound form


   return render(request, 'scraper/base.html', {'form': form })     


def thanks(request,output):
return render(request, 'scraper/base.html', output)

这是我的forms.py

from django import forms

class InputForm(forms.Form):
     x = forms.IntegerField(label='Value of x')
     y = forms.IntegerField(label='Value of y')

这是我的urls.py

from django.conf.urls import url
from . import views

urlpatterns = [
url(r'^$', views.add, name='add'),
url(r'^/', views.thanks , name='thanks'),
]

这里是output.html

<html>
  <head>
  <title>Thanks</title>
  </head>
  <body>
  <h1>Thanks</h1>
  <h1> Output = {{output}} </h1>
  </body>
  </html>

用户输入x和y值，然后单击“添加”按钮，输出应显示在output.html等新页面中，以便如何操作？

我知道views.py中有一些错误我正在学习django。请指出并告诉我实现此

的正确方法

我挣扎了5个小时。

Answer 1

您可以使用会话存储输出，然后在下一个视图中检索它。会话框架允许您基于每个站点访问者存储和检索任意数据。

编辑views.py，如下所示 -

def add(request):
    if request.method == 'POST':        
        form = InputForm(request.POST)     
        if form.is_valid():                
            cd = form.cleaned_data     
            input1 = cd['x']
            input2 = cd['y']
            output = input1 + input2
            # Save the result in the session
            request.session['output'] = output
            return  HttpResponseRedirect('/thanks/')
    else:
        form = InputForm() 
    return render(request, 'scraper/base.html', {'form': form })  


def thanks(request):
    # Get the result from the session
    output = request.session.pop('output', None)
    return render(request, 'scraper/output.html', {'output':output})

你urls.py应该是 -

urlpatterns = [
    url(r'^$', views.add, name='add'),
    url(r'^thanks/$', views.thanks , name='thanks'),
]

Answer 2

我认为您错误地使用了重定向，您无法在def add(request): if request.method == 'POST': # If the form has been submitted... form = InputForm(request.POST) # A form bound to the POST data if form.is_valid(): # All validation rules pass cd = form.cleaned_data # Process the data in form.cleaned_data input1 = cd['x'] input2 = cd['y'] output = input1 + input2 return HttpResponseRedirect('/thanks/{output}/'.format(output=output)) # Redirect to new url else: form = InputForm() # An unbound form return render(request, 'scraper/base.html', {'form': form })中发送参数，请在此处查看修改并查看documentation以获取更多解释：

<强> views.py

url(r'^thanks/(?P<output>\d+)/$', thanks),

<强> urls.py

{{1}}

在django

2 个答案: