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Django错误：没有匹配的FlatPage查询

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3 回答
4460 浏览
提问于 2025-04-17 06:24
SITE_ID = 1

还有

(r'', include('django.contrib.flatpages.urls')), 这个在 urls.py 文件里。

我该怎么做才能解决这个错误？Django 还是显示这个错误 - 我在网上搜索过，但找不到任何信息。

文件 urls.py

from django.conf.urls.defaults import patterns, include, url

# Uncomment the next two lines to enable the admin:
from django.contrib import admin
admin.autodiscover()

urlpatterns = patterns('',
    # Examples:
    # url(r'^$', 'cms.views.home', name='home'),
    # url(r'^cms/', include('cms.foo.urls')),

    # Uncomment the admin/doc line below to enable admin documentation:
    # url(r'^admin/doc/', include('django.contrib.admindocs.urls')),

    # Uncomment the next line to enable the admin:
     url(r'^admin/', include(admin.site.urls)),
     (r'', include('django.contrib.flatpages.urls')),        
)

这是最基本的 urls.py 文件。所以我没必要贴代码，但这里还是给你看一下。

这个功能也是启用的。因为这是一个新项目，我会展示每个文件。

_init_ 是空的

settings.py

# Django settings for CMS project.

DEBUG = True
TEMPLATE_DEBUG = DEBUG

ADMINS = (
    # ('Your Name', 'your_email@example.com'),
)

MANAGERS = ADMINS

DATABASES = {
    'default': {
        'ENGINE': 'sqlite3', # Add 'postgresql_psycopg2', 'postgresql', 'mysql', 'sqlite3' or 'oracle'.
        'NAME': 'C:\Documents and Settings\Administrator\Desktop\django-projects\cms/cms.db',                      # Or path to database file if using sqlite3.
        'USER': '',                      # Not used with sqlite3.
        'PASSWORD': '',                  # Not used with sqlite3.
        'HOST': '',                      # Set to empty string for localhost. Not used with sqlite3.
        'PORT': '',                      # Set to empty string for default. Not used with sqlite3.
    }
}

# Local time zone for this installation. Choices can be found here:
# http://en.wikipedia.org/wiki/List_of_tz_zones_by_name
# although not all choices may be available on all operating systems.
# On Unix systems, a value of None will cause Django to use the same
# timezone as the operating system.
# If running in a Windows environment this must be set to the same as your
# system time zone.
TIME_ZONE = 'America/Chicago'

# Language code for this installation. All choices can be found here:
# http://www.i18nguy.com/unicode/language-identifiers.html
LANGUAGE_CODE = 'en-us'

SITE_ID = 1

# If you set this to False, Django will make some optimizations so as not
# to load the internationalization machinery.
USE_I18N = True

# If you set this to False, Django will not format dates, numbers and
# calendars according to the current locale
USE_L10N = True

# Absolute filesystem path to the directory that will hold user-uploaded files.
# Example: "/home/media/media.lawrence.com/media/"
MEDIA_ROOT = ''

# URL that handles the media served from MEDIA_ROOT. Make sure to use a
# trailing slash.
# Examples: "http://media.lawrence.com/media/", "http://example.com/media/"
MEDIA_URL = ''

# Absolute path to the directory static files should be collected to.
# Don't put anything in this directory yourself; store your static files
# in apps' "static/" subdirectories and in STATICFILES_DIRS.
# Example: "/home/media/media.lawrence.com/static/"
STATIC_ROOT = ''

# URL prefix for static files.
# Example: "http://media.lawrence.com/static/"
STATIC_URL = '/static/'

# URL prefix for admin static files -- CSS, JavaScript and images.
# Make sure to use a trailing slash.
# Examples: "http://foo.com/static/admin/", "/static/admin/".
ADMIN_MEDIA_PREFIX = '/static/admin/'

# Additional locations of static files
STATICFILES_DIRS = (
    # Put strings here, like "/home/html/static" or "C:/www/django/static".
    # Always use forward slashes, even on Windows.
    # Don't forget to use absolute paths, not relative paths.
)

# List of finder classes that know how to find static files in
# various locations.
STATICFILES_FINDERS = (
    'django.contrib.staticfiles.finders.FileSystemFinder',
    'django.contrib.staticfiles.finders.AppDirectoriesFinder',
#    'django.contrib.staticfiles.finders.DefaultStorageFinder',
)

# Make this unique, and don't share it with anybody.
SECRET_KEY = 'o2lqxjp!fg%0xod5g$79alt_*o4&lkw-ncr^30iuqcv(y-44i7'

# 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',
)

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

ROOT_URLCONF = 'cms.urls'

TEMPLATE_DIRS = (
    # Put strings here, like "/home/html/django_templates" or "C:/www/django/templates".
    # Always use forward slashes, even on Windows.
    # Don't forget to use absolute paths, not relative paths.
)

INSTALLED_APPS = (
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.sites',
    'django.contrib.admin',
    'django.contrib.flatpages',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    # Uncomment the next line to enable the admin:
     'django.contrib.admin',
    # Uncomment the next line to enable admin documentation:
    # 'django.contrib.admindocs',
)

# A sample logging configuration. The only tangible logging
# performed by this configuration is to send an email to
# the site admins on every HTTP 500 error.
# See http://docs.djangoproject.com/en/dev/topics/logging for
# more details on how to customize your logging configuration.
LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'handlers': {
        'mail_admins': {
            'level': 'ERROR',
            'class': 'django.utils.log.AdminEmailHandler'
        }
    },
    'loggers': {
        'django.request': {
            'handlers': ['mail_admins'],
            'level': 'ERROR',
            'propagate': True,
        },
    }
}

最后是 manage.py：

#!/usr/bin/env python
from django.core.management import execute_manager
import imp
try:
    imp.find_module('settings') # Assumed to be in the same directory.
except ImportError:
    import sys
    sys.stderr.write("Error: Can't find the file 'settings.py' in the directory containing %r. It appears you've customized things.\nYou'll have to run django-admin.py, passing it your settings module.\n" % __file__)
    sys.exit(1)

import settings

if __name__ == "__main__":
    execute_manager(settings)

  1. 在管理界面中，flatpages 功能正常

  2. 我确实通过管理界面添加了那个页面

  3. 这是我的数据库路径：

    C:\Documents and Settings\Administrator\Desktop\django-projects\cms\cms.db

当我运行 python manage.py syncdb 时，没有看到任何错误。

  1. 我尝试访问

    http://localhost:8000/test/

  2. 当我输入 python manage.py runserver 时，也没有看到任何错误。

管理界面工作得很好。

数据库 django 错误处理 管理界面 web开发 urls.py settings.py flatpages

3 个回答

0

为了完整起见，我想分享一下我遇到这个错误的另一个原因。

问题出在保存平面页面的链接时，没有在前面加上斜杠。

抛出这个错误的视图会在链接前面没有斜杠的情况下更改链接。所以当我把 'example/' 存到数据库时，就出现了问题。

# This is the view function where the error occurs.
# I stored 'example/' as url to db.
def flatpage(request, url):
    if not url.startswith('/'):
        # Here the url is manipulated and becomes '/example/':
        url = '/' + url 
    site_id = get_current_site(request).id
    try:
        # '/example/' does not exist in db:
        f = get_object_or_404(FlatPage, url=url, sites=site_id)

https://code.djangoproject.com/ticket/32837#ticket

回答于 2025-04-17 由 Python大师
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6

我在使用 Django 的 flatpages 时遇到了同样的问题。这个问题和你的网站 ID 有关。

当我尝试从管理后台添加 flatpage，并为我的 flat page 添加一个网站时，发现“sites”字段里有一个 example.com，它的 SITE_ID 是 1（可以通过 django_site 表查看）。

举个例子：我在管理后台添加了一个 flat page，设置如下： url = '/about/' site = "localhost:8000" name = "about" content = "这是关于页面"

*如果你是在本地开发，可能需要把 localhost:8000 添加到你的网站中。这样新添加的网站（localhost:8000）就会有 SITE_ID=2。*

你可以通过查看你在设置文件中提到的数据库里的 django_site 表来确认这一点。

现在，找到 localhost:8000 的 SITE_ID（这是 django_site 表中的主键），然后在设置文件中把你的 SITE_ID 修改为这个 SITE_ID（也就是 localhost:8000 的 SITE_ID）。

就这样，打开浏览器访问 "localhost:8000/about/"（假设你已经在你的应用中扩展了 flatpage，具体可以参考 https://docs.djangoproject.com/en/dev/ref/contrib/flatpages/）。

回答于 2025-04-17 由 Python大师
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2

我觉得这个错误是，你不需要为 flatpages 创建一个 urls.py 文件。相反，你需要做的是：

在你的 MIDDLEWARE_CLASSES 设置中添加 'django.contrib.flatpages.middleware.FlatpageFallbackMiddleware'。

这段话是引用自 Django 的文档，平面页面应用。

检查代码和项目后发现，问题在于在 admin 界面编辑或创建平面页面时，你必须选择一个或多个网站来关联。

回答于 2025-04-17 由 Python大师
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