forked from django-cms/django-cms
/
apphook_pool.py
60 lines (52 loc) · 2 KB
/
apphook_pool.py
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from django.conf import settings
from cms.exceptions import AppAllreadyRegistered
from django.core.exceptions import ImproperlyConfigured
class ApphookPool(object):
def __init__(self):
self.apps = {}
self.discovered = False
self.block_register = False
def discover_apps(self):
if self.discovered:
return
#import all the modules
if settings.CMS_APPHOOKS:
for app in settings.CMS_APPHOOKS:
self.block_register = True
path = ".".join(app.split(".")[:-1])
class_name = app.split(".")[-1]
cls = __import__(path, {}, {}, [class_name])
self.block_register = False
self.register(cls)
else:
for app in settings.INSTALLED_APPS:
__import__(app, {}, {}, ['cms_app'])
self.discovered = True
def clear(self):
self.apps = {}
self.discovered = False
def register(self, app):
if self.block_register:
return
from cms.app_base import CMSApp
assert issubclass(app, CMSApp)
if app.__name__ in self.apps.keys():
raise AppAllreadyRegistered, "[%s] an cms app with this name is already registered" % app.__name__
self.apps[app.__name__] = app
def get_apphooks(self):
self.discover_apps()
hooks = []
for app_name in self.apps.keys():
app = self.apps[app_name]
hooks.append((app_name, app.name))
return hooks
def get_apphook(self, app_name):
try:
return self.apps[app_name]
except KeyError:
# deprecated: return apphooks registered in db with urlconf name instead of apphook class name
for app in self.apps.values():
if app_name in app.urls:
return app
raise ImproperlyConfigured('No registered apphook `%s` found.' % app_name)
apphook_pool = ApphookPool()