Django-CMS 插件未显示在可用插件中

Question

我一直在尝试写一个Django CMS的插件，但它在页面编辑时的“可用插件”列表中没有显示出来。我很不确定为什么，因为我看过其他几个插件的源代码，想看看我哪里做错了。感觉就像Django-CMS没有注册这个插件一样。

目录结构：

/linkrotator
  __init__.py
  admin.py
  cms_plugins.py
  links.html
  models.py
  tests.py
  views.py

cms_plugins.py

from cms.plugin_base import CMSPluginBase
from cms.plugin_pool import plugin_pool
from linkrator.models import LinksPlugin as LinksPluginModel

class LinkListPlugin(CMSPluginBase):
    text_enabled = True
    model = LinkListPluginModel
    render_template = "linkrotator/links.html"

    def render(self, context, instance, placeholder):
        context.update({'instance':instance})
        return context

plugin_pool.register_plugin(LinkListPlugin)

models.py

from django.db import models
from cms.models import CMSPlugin

class LinkListPlugin(CMSPlugin):
    linklist = models.ForeignKey('linkrotator.LinkListList', related_name='plugins')

    def __unicode__( self ):
        return self.linklist.name

class Link(models.Model):
    name = models.CharField( max_length = 140 )
    in_list = models.ForeignKey( 'linkrotator.LinkList' )
    link = models.URLField()

    def __unicode__(self):
        return self.name

class LinkList(models.Model):
    name = models.CharField( max_length = 140 )
    in_list = models.ForeignKey('linkrotator.LinkListList', blank = True, null = True, on_delete=models.SET_NULL)

    def __unicode__(self):
        return self.name

class LinkListList(models.Model):
    name = models.CharField( max_length = 140 )
    number_of_links = models.IntegerField()

    def __unicode__(self):
        return self.name

settings.py

# -*- coding: utf-8 -*-
import os

gettext = lambda s: s

PROJECT_DIR = os.path.abspath(os.path.dirname(__file__))

DEBUG = True
TEMPLATE_DEBUG = DEBUG

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

MANAGERS = ADMINS

LANGUAGES = [('en', 'en')]
DEFAULT_LANGUAGE = 0

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(PROJECT_DIR, 'mycms.db'),
    }
}

# 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_ROOT = os.path.join(PROJECT_DIR, 'media')

# URL that handles the media served from MEDIA_ROOT. Make sure to use a
# trailing slash if there is a path component (optional in other cases).
# Examples: "http://media.lawrence.com", "http://example.com/media/"
MEDIA_URL = '/media/'

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

# Make this unique, and don't share it with anybody.
SECRET_KEY = '0r6%7gip5tmez*vygfv+u14h@4lbt^8e2^26o#5_f_#b7%cm)u'

# 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',
)

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',
    'cms.middleware.page.CurrentPageMiddleware',
    'cms.middleware.user.CurrentUserMiddleware',
    'cms.middleware.toolbar.ToolbarMiddleware',
    'cms.middleware.media.PlaceholderMediaMiddleware',
)

TEMPLATE_CONTEXT_PROCESSORS = (
    'django.core.context_processors.auth',
    'django.core.context_processors.i18n',
    'django.core.context_processors.request',
    'django.core.context_processors.media',
    'cms.context_processors.media',
)

CMS_TEMPLATES = (
    ('example.html', 'Example Template'),
)

ROOT_URLCONF = 'urls'

TEMPLATE_DIRS = (
    os.path.join(PROJECT_DIR, 'templates'),
)

INSTALLED_APPS = (
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.sites',
    'django.contrib.messages',
    'django.contrib.admin',
    'cms',
    'menus',
    'mptt',
    'appmedia',
    'south',
    'cms.plugins.text',
    'cms.plugins.picture',
    'cms.plugins.link',
    'cms.plugins.file',
    'cms.plugins.snippet',
    'cms.plugins.googlemap',
    'snippetology',
    'linkrotator'
)

目录结构插件开发 django-cms 可用插件插件注册

Django-CMS 插件未显示在可用插件中

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