标签：blog http io ar for div sp 代码 log
app钩子，啥玩意呢？
就是把现有的app，集成到cms的一种手段。
有两种实现方式：
1) 定义cms_app.py，如下：
from cms.app_base import CMSApp
from cms.apphook_pool import apphook_pool
from django.utils.translation import ugettext_lazy as _
class MyApphook(CMSApp):
name = _("My Apphook")
urls = ["myapp.urls"]
apphook_pool.register(MyApphook)
官方文档查看这里：http://docs.django-cms.org/en/latest/extending_cms/app_integration.html#app-hooks
加载逻辑，通过discover_apps的load(‘cms_app‘)来加载(前提是在settings.py中未定义 CMS_APPHOOKS):在所有的installed_app中，查找cms_app模块，并自动import_module
2) 在setting.py中定义CMS_APPHOOKS
APPHOOKS=( ‘yourmodule.you_object1‘,‘yourmodule.you_object2‘,... )
这是从源码中分析的来的，如下：
C:\Python27\Lib\site-packages\django_cms-3.0.3-py2.7.egg\cms\apphook_pool.py (45~57)
def discover_apps(self):
self.apphooks = get_cms_setting(‘APPHOOKS‘)
if self.apphooks:
for cls in iterload_objects(self.apphooks):
try:
self.register(cls, discovering_apps=True)
except AppAlreadyRegistered:
pass
else:
load(‘cms_app‘)
self.discovered = True
iterload_objects,是一个生成器，如下：
def iterload_objects(import_paths):
"""
Load a list of objects.
"""
for import_path in import_paths:
yield load_object(import_path)
load_object
def load_object(import_path):
if ‘.‘ not in import_path:
raise TypeError(
"‘import_path‘ argument to ‘django_load.core.load_object‘ must "
"contain at least one dot."
)
module_name, object_name = import_path.rsplit(‘.‘, 1)
module = import_module(module_name)
return getattr(module, object_name)
标签：blog http io ar for div sp 代码 log
原文地址：http://www.cnblogs.com/Tommy-Yu/p/3975330.html
