django-allauth 返回错误“反向 ... 未找到参数 '()' 和关键字参数 '{}'”

Question

编辑： 凯文在下面的回答解决了我的问题。结果是“allauth 不支持命名空间”，所以我不应该把它引入我的 urls.py

---

原帖：

我已经完全按照教程安装了 django-allauth https://github.com/pennersr/django-allauth

我在这里有一个非常基本的问题；即使在我添加社交集成之前，也无法让基本的用户登录/退出页面正常工作。

通过导航到 /admin，我点击了“注销”，所以我不是登录用户。

现在当我访问/accounts/login 时遇到了这个错误

NoReverseMatch at /accounts/login/
Reverse for 'account_signup' with arguments '()' and keyword arguments '{}' not found. 0 pattern(s) tried: []
Request Method: GET
Request URL:    http://localhost:5000/accounts/login/
Django Version: 1.6.5
Exception Type: NoReverseMatch
Exception Value:    
Reverse for 'account_signup' with arguments '()' and keyword arguments '{}' not found. 0 pattern(s) tried: []

问题：我需要修改默认的allauth views.py来解决这个问题吗？

如果相关，当我通过 shell 尝试时，这是同样的问题

(awe01)MoriartyMacBookAir13:getstartapp macuser$ python manage.py shell
Python 2.7.5 (default, Mar  9 2014, 22:15:05) 
>>> from django.core.urlresolvers import reverse
>>> reverse('account_signup')
2014-09-30 16:54:29,256 boto [DEBUG]:Using access key found in config file.
2014-09-30 16:54:29,256 boto [DEBUG]:Using secret key found in config file.
Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/Users/macuser/Dropbox/code/heroku/awe01/lib/python2.7/site-packages/django/core/urlresolvers.py", line 532, in reverse
    return iri_to_uri(resolver._reverse_with_prefix(view, prefix, *args, **kwargs))
  File "/Users/macuser/Dropbox/code/heroku/awe01/lib/python2.7/site-packages/django/core/urlresolvers.py", line 452, in _reverse_with_prefix
    (lookup_view_s, args, kwargs, len(patterns), patterns))
NoReverseMatch: Reverse for 'account_signup' with arguments '()' and keyword arguments '{}' not found. 0 pattern(s) tried: []

过去一个小时一直在谷歌搜索，我看不出我错过了什么。它应该开箱即用，对吧？ 我看到默认的base.html似乎已经有了{% load url from future %}

这一行

为了确认，这里是我的主要 settings.py 中的一些摘录（在文件夹 shareducate/settings.py 中）

"""

"""

# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
import os
import dj_database_url
# from unipath import Path # that's from http://djangosteps.wordpress.com/2013/09/19/setting-up-django-allauth/
BASE_DIR = os.path.dirname(os.path.dirname(__file__))


# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

TEMPLATE_DEBUG = True

ALLOWED_HOSTS = []


TEMPLATE_CONTEXT_PROCESSORS = (
    # from http://django-allauth.readthedocs.org/en/latest/installation.html
    # Required by allauth template tags
    "django.core.context_processors.request",
    # allauth specific context processors
    "allauth.account.context_processors.account",
    "allauth.socialaccount.context_processors.socialaccount",

    # and this due to error message
    "django.contrib.auth.context_processors.auth",
)



AUTHENTICATION_BACKENDS = (
#     http://django-allauth.readthedocs.org/en/latest/installation.html 
    # Needed to login by username in Django admin, regardless of `allauth`
    "django.contrib.auth.backends.ModelBackend",

    # `allauth` specific authentication methods, such as login by e-mail
    "allauth.account.auth_backends.AuthenticationBackend",
)


# Application definition
# auth and allauth settings
LOGIN_REDIRECT_URL = '/'
SOCIALACCOUNT_QUERY_EMAIL = True
SOCIALACCOUNT_PROVIDERS = {
    'facebook': {
#        'AUTH_PARAMS': {'auth_type': 'reauthenticate'},
        'SCOPE': ['email', 'publish_stream'],
        'METHOD': 'js_sdk',  # instead of 'oauth2'
#        'LOCALE_FUNC': 'path.to.callable',
        'VERIFIED_EMAIL': False
    },
#     'google':
#         { 'SCOPE': ['https://www.googleapis.com/auth/userinfo.profile'],
#           'AUTH_PARAMS': { 'access_type': 'online' } },
#     'linkedin':
#       {'SCOPE': ['r_emailaddress'],
#        'PROFILE_FIELDS': ['id',
#                          'first-name',
#                          'last-name',
#                          'email-address',
#                          'picture-url',
#                          'public-profile-url']},
# 
}
# SOCIALACCOUNT_ENABLED = True # @MM completely made that up based on allauth urls.py and https://github.com/flashingpumpkin/django-socialregistration/issues/48

# more settings from allauth
# http://django-allauth.readthedocs.org/en/latest/configuration.html
ACCOUNT_PASSWORD_MIN_LENGTH = 5
# more suggestions from https://speakerdeck.com/tedtieken/signing-up-and-signing-in-users-in-django-with-django-allauth
# ACCOUNT_AUTHENTICATION_METHOD = "username"

INSTALLED_APPS = (
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'storages', # http://django-storages.readthedocs.org/en/latest/
    'polls',
    'discover',
    'hello',
    'upload', # from https://github.com/Widen/fine-uploader-server/blob/master/python/django-fine-uploader-s3/settings.py
    'south', # http://south.readthedocs.org/en/latest/tutorial/part1.html
    # The Django sites framework is required
    'django.contrib.sites',

    'allauth',
    'allauth.account',
    'allauth.socialaccount',
    # ... include the providers you want to enable:

    'allauth.socialaccount.providers.facebook',

    'allauth.socialaccount.providers.linkedin',

    'allauth.socialaccount.providers.twitter',

)

SITE_ID = 5 # this corresponds to "127.0.0.1:5000" since I use heroku's foreman start to run things locally
# Not sure about this
# check out https://searchcode.com/codesearch/view/263279/
# I looked at tables. Ran "select * from django_site and it showed that awedify.org was id num 2
# awedify.org # originally just the single character, 1
# that from http://django-allauth.readthedocs.org/en/latest/installation.html

# from http://django-storages.readthedocs.org/en/latest/backends/amazon-S3.html
DEFAULT_FILE_STORAGE = 'storages.backends.s3boto.S3BotoStorage'
# Note I also specify boto in STATICFILES_STORAGE later down this file





#    Added and removed when trying fineuploader
ADMINS = (
    ('Mark', 'm@domain.com'),
    # ('Your Name', 'your_email@example.com'),
)



MIDDLEWARE_CLASSES = (
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
)

ROOT_URLCONF = 'shareducate.urls'

WSGI_APPLICATION = 'shareducate.wsgi.application'


ALLOWED_HOSTS = ['*']

TEMPLATE_DIRS = (os.path.join(BASE_DIR, 'templates'),
         'polls/templates/polls',
         'upload/templates/upload',
         # 'polls/templates/polls',
         'messing/templates/messing',
         'discover/templates/discover',
         'allauth/templates/allauth',
        # or see http://djangosteps.wordpress.com/2013/09/19/setting-up-django-allauth/

)

# List of callables that know how to import templates from various sources.
TEMPLATE_LOADERS = (
    'django.template.loaders.filesystem.Loader',
    'django.template.loaders.app_directories.Loader',
#     'django.template.loaders.eggs.Loader',
)


EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend' 
# from http://stackoverflow.com/questions/21563227/django-allauth-example-errno-61-connection-refused

我已经修改了 shareducate/urls.py url(r'^accounts/', include('allauth.urls', namespace='allauth')), 但我没有修改allauth文件夹中的任何内容

注意：通过转到 /admin，我可以作为超级用户登录。然后果然，访问 /accounts/login 将我重定向到 root /，根据 settings.py 如果我注释掉那行，# LOGIN_REDIRECT_URL = '/'，那么我肯定会按照http://stackoverflow.com/a/16956071/870121 被定向到/accounts/profile/

现在我已经注销（我通过 /admin 界面实现了），当我访问 /accounts/login 时，allauth 程序似乎无法处理我

注意 /allauth/templates/account/login.html 看起来像这样...我根本没有编辑它

{% extends "account/base.html" %}

{% load i18n %}
{% load account %}
{% load url from future %}

{% block head_title %}{% trans "Sign In" %}{% endblock %}

{% block content %}

<h1>{% trans "Sign In" %}</h1>

{% if socialaccount.providers  %}
<p>{% blocktrans with site.name as site_name %}Please sign in with one
of your existing third party accounts. Or, <a href="{{ signup_url }}">sign up</a>
for a {{site_name}} account and sign in below:{% endblocktrans %}</p>

<div class="socialaccount_ballot">

  <ul class="socialaccount_providers">
    {% include "socialaccount/snippets/provider_list.html" with process="login" %}
  </ul>

  <div class="login-or">{% trans 'or' %}</div>

</div>

{% include "socialaccount/snippets/login_extra.html" %}

{% else %}
<p>{% blocktrans %}If you have not created an account yet, then please
<a href="{{ signup_url }}">sign up</a> first.{% endblocktrans %}</p>
{% endif %}

<form class="login" method="POST" action="{% url 'account_login' %}">
  {% csrf_token %}
  {{ form.as_p }}
  {% if redirect_field_value %}
  <input type="hidden" name="{{ redirect_field_name }}" value="{{ redirect_field_value }}" />
  {% endif %}
  <a class="button secondaryAction" href="{% url 'account_reset_password' %}">{% trans "Forgot Password?" %}</a>
  <button class="primaryAction" type="submit">{% trans "Sign In" %}</button>
</form>

{% endblock %}

猜猜

(1)

基于这个答案http://stackoverflow.com/a/13202435/870121 我想我可能需要修改这个 allauth/accounts/views.py 中的第 109 行

84 class LoginView(RedirectAuthenticatedUserMixin,
 85                 AjaxCapableProcessFormViewMixin,
 86                 FormView):
 87     form_class = LoginForm
 88     template_name = "account/login.html"
 89     success_url = None
 90     redirect_field_name = "next"
 91 
 92     def get_form_class(self):
 93         return get_form_class(app_settings.FORMS, 'login', self.form_class)
 94 
 95     def form_valid(self, form):
 96         success_url = self.get_success_url()
 97         return form.login(self.request, redirect_url=success_url)
 98 
 99     def get_success_url(self):
100         # Explicitly passed ?next= URL takes precedence
101         ret = (get_next_redirect_url(self.request,
102                                      self.redirect_field_name)
103                or self.success_url)
104         return ret
105 
106     def get_context_data(self, **kwargs):
107         ret = super(LoginView, self).get_context_data(**kwargs)
108         signup_url = passthrough_next_redirect_url(self.request,
109                                                    reverse("account_signup"),
110                                                    self.redirect_field_name)
111         redirect_field_value = self.request.REQUEST \
112             .get(self.redirect_field_name)
113         ret.update({"signup_url": signup_url,
114                     "site": Site.objects.get_current(),
115                     "redirect_field_name": self.redirect_field_name,
116                     "redirect_field_value": redirect_field_value})
117         return ret
118 
119 login = LoginView.as_view()

你看到它有 reverse("account_signup") 没有额外的参数 我没有编辑这个，因为我认为 allauth 应该开箱即用，并且不愿意通过修补来破坏事情

该行在完整的回溯错误中突出显示。 追溯：

File "/Users/macuser/Dropbox/code/heroku/awe01/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
  112.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/Users/macuser/Dropbox/code/heroku/awe01/lib/python2.7/site-packages/django/views/generic/base.py" in view
  69.             return self.dispatch(request, *args, **kwargs)
File "/Users/macuser/Dropbox/code/heroku/awe01/getstartapp/allauth/account/views.py" in dispatch
  62.                                             **kwargs)
File "/Users/macuser/Dropbox/code/heroku/awe01/lib/python2.7/site-packages/django/views/generic/base.py" in dispatch
  87.         return handler(request, *args, **kwargs)
File "/Users/macuser/Dropbox/code/heroku/awe01/lib/python2.7/site-packages/django/views/generic/edit.py" in get
  161.         return self.render_to_response(self.get_context_data(form=form))
File "/Users/macuser/Dropbox/code/heroku/awe01/getstartapp/allauth/account/views.py" in get_context_data
  109.                                                    reverse("account_signup"),
File "/Users/macuser/Dropbox/code/heroku/awe01/lib/python2.7/site-packages/django/core/urlresolvers.py" in reverse
  532.     return iri_to_uri(resolver._reverse_with_prefix(view, prefix, *args, **kwargs))
File "/Users/macuser/Dropbox/code/heroku/awe01/lib/python2.7/site-packages/django/core/urlresolvers.py" in _reverse_with_prefix
  452.                              (lookup_view_s, args, kwargs, len(patterns), patterns))

(2) SITE_ID 对此很重要，还是仅对社会整合重要？

请从此处提供可能有意义的故障排除步骤。在此先感谢，M

Answer 1

让我用一些调试技巧来回答这个问题，希望这些技巧在将来会很有用。

当您看到特定的 Django 错误时，几乎总是意味着您的 urls.py 有问题。如此广泛使用的软件包存在影响此类基本用法的错误的可能性非常小，因此在这种情况下深入研究源代码可能是浪费精力。

您说您“完全按照教程”安装了django-allauth，但是当我将您的设置与documentation 进行比较时，我发现了这种差异：

文档：(r'^accounts/', include('allauth.urls'))

你：(r'^accounts/', include('allauth.urls', namespace='allauth'))

所以看来您使用命名空间有问题。

一个快速的Google search 拉起this issue，包作者解释说不支持命名空间。

因此，如果您去掉 namespace 参数，一切都会按预期工作。