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django-cms 代码研究（八）app hooks

2024-07-22 20:35:20   212人阅读

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 CMSAppfrom cms.apphook_pool import apphook_poolfrom 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)

　　



　

 

django-cms 代码研究（八）app hooks


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