Question

我正在尝试在Django中建立一个真正的基础站点。现在，您只需要输入您的姓名即可保存。但是，即使我按照here的说明进行操作它会引发错误'WSGIRequest' object has no attribute 'get'

我的views.py：

from django.shortcuts import render

from django.http import HttpResponseRedirect
from django.urls import reverse
from django.http import HttpResponse
from .forms import NameForm
from django.views.decorators.csrf import csrf_protect


@csrf_protect
def get_name(request):
    # if this is a POST request we need to process the form data
    if request.method == 'POST':
        # create a form instance and populate it with data from the request:
        form = NameForm(request.POST)
        # check whether it's valid:
        if form.is_valid():
            with open("name.txt" , "w") as f:
                f.write(form.cleaned_data)
            return HttpResponseRedirect('/nmindex/')


@csrf_protect
def vote_page(request):
    return render(request, 'name.html', {'form': NameForm(request)})

forms.py：

from django import forms
from django.views.decorators.csrf import csrf_protect

class NameForm(forms.Form):
    your_name = forms.CharField(label='Your name', max_length=100)

urls.py：

from django.contrib import admin
from django.urls import path, include
from nmindex import views
urlpatterns = [
    path('data/', views.get_name),
    path('vote/', views.vote_page),
    path('admin/', admin.site.urls),
]

还有模板name.html：

<form action="/data/" method="post">
    {% csrf_token %}
    {{ form }}
    <input type="submit" value="Submit">
</form>

但是当我打开http://localhost:8000/vote/时：


AttributeError at /vote/

'WSGIRequest' object has no attribute 'get'

Request Method:     GET
Request URL:    http://localhost:8000/vote/
Django Version:     3.0.5
Exception Type:     AttributeError
Exception Value:    

'WSGIRequest' object has no attribute 'get'

Exception Location:     C:\Users\Sid\Envs\namesproj\lib\site-packages\django\forms\widgets.py in value_from_datadict, line 258
Python Executable:  C:\Users\Sid\Envs\namesproj\Scripts\python.exe
Python Version:     3.8.2
Python Path:    

['C:\\Users\\Sid\\names',
 'C:\\Users\\Sid\\Envs\\namesproj\\Scripts\\python38.zip',
 'c:\\users\\sid\\appdata\\local\\programs\\python\\python38-32\\DLLs',
 'c:\\users\\sid\\appdata\\local\\programs\\python\\python38-32\\lib',
 'c:\\users\\sid\\appdata\\local\\programs\\python\\python38-32',
 'C:\\Users\\Sid\\Envs\\namesproj',
 'C:\\Users\\Sid\\Envs\\namesproj\\lib\\site-packages']

Server time:    Sat, 2 May 2020 08:00:03 +0000
Error during template rendering

In template C:\Users\Sid\names\templates\name.html, error at line 3
'WSGIRequest' object has no attribute 'get'
1   <form action="/data/" method="post">
2       {% csrf_token %}
3       {{ form }}
4       <input type="submit" value="Submit">
5   </form>

任何帮助将不胜感激。

Answer 1

问题出在您的vote_page方法中。您无法使用request作为数据实例化表单。它期望像QueryDict这样的字典式对象，例如带有request.POST或request.GET的对象，因此NameForm(request)将不起作用。

def vote_page(request):
    if request.method == 'POST':
        form = NameForm(request.POST)
        if form.is_valid():
            # …
            return redirect('name-of-some-view')
    else:
        form = NameForm()
    return render(request, 'name.html', {'form': form})

注意：如果POST请求成功，则应进行redirect [Django-doc] 实现Post/Redirect/Get pattern [wiki]。这样可以避免在用户刷新页面时发出相同的POST请求。浏览器。

Django-'WSGIRequest'对象没有属性'get'

1 个答案: