我正在学习Django并且正在尝试创建一个表单,我可以将参与者的信息提交给数据库.
我有一个索引视图,列出所有参与者:
http://127.0.0.1:8000/participants/
单击索引上的按钮将转到表单提交:
http://127.0.0.1:8000/participants/add_participant/
提交表单后,页面返回到索引视图,但URL不正确,它停留在http://127.0.0.1:8000/participants/add_participant/
如果我立即刷新浏览器,它将向数据库添加另一条记录.
add_participant.html
<!DOCTYPE html>
<html>
<head>
<title>This is the title</title>
</head>
<body>
<h1>Add a Participant</h1>
<form id="participant_form" method="post" action="/participants/add_participant/">
{% csrf_token %}
{{ form.as_p }}
<input type="submit" name="submit" value="Create Participant" />
</form>
</body>
</html>
views.py
from django.shortcuts import render, get_object_or_404, redirect
from django.http import HttpResponse, HttpResponseRedirect
from participants.models import Participant
from .forms import ParticipantForm
# Create your views here.
def index(request):
participant_list = Participant.objects.order_by('-first_name')[:50]
context = {'participants': participant_list}
return render(request, 'participants/index.html', context)
def add_participant(request):
if request.method == 'POST':
form = ParticipantForm(request.POST)
if form.is_valid():
form.save(commit=True)
return index(request)
else:
form = ParticipantForm()
return render(request, 'participants/add_participant.html', {'form': form})
urls.py
from django.conf.urls import url
from . import views
from .models import Participant
app_name = 'participants'
urlpatterns = [
url(r'^$', views.index, name='index'),
url(r'add_participant/$', views.add_participant, name='add_participant'),
]
我试过切换
return index(request)
至:
return HttpResponseRedirect("http://127.0.0.1:8000/participants/")
它解决了这个问题...但我怀疑这是"正确"的方法.解决此问题的正确方法是什么？
您只能将路径传递给重定向响应:
return HttpResponseRedirect("/participants/")
这样,如果您更改域名,重定向将起作用.
另一种解决方案是使用 reverse
from django.core.urlresolvers import reverse
# ...
return HttpResponseRedirect(reverse(index))
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