59 lines
2.4 KiB
Python
59 lines
2.4 KiB
Python
from django.contrib.admin.helpers import ACTION_CHECKBOX_NAME
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from django.contrib.admin.options import ModelAdmin, HORIZONTAL, VERTICAL
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from django.contrib.admin.options import StackedInline, TabularInline
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from django.contrib.admin.sites import AdminSite, site
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from django.utils.importlib import import_module
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# A flag to tell us if autodiscover is running. autodiscover will set this to
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# True while running, and False when it finishes.
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LOADING = False
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def autodiscover():
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"""
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Auto-discover INSTALLED_APPS admin.py modules and fail silently when
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not present. This forces an import on them to register any admin bits they
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may want.
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"""
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# Bail out if autodiscover didn't finish loading from a previous call so
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# that we avoid running autodiscover again when the URLconf is loaded by
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# the exception handler to resolve the handler500 view. This prevents an
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# admin.py module with errors from re-registering models and raising a
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# spurious AlreadyRegistered exception (see #8245).
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global LOADING
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if LOADING:
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return
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LOADING = True
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import imp
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from django.conf import settings
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for app in settings.INSTALLED_APPS:
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# For each app, we need to look for an admin.py inside that app's
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# package. We can't use os.path here -- recall that modules may be
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# imported different ways (think zip files) -- so we need to get
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# the app's __path__ and look for admin.py on that path.
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# Step 1: find out the app's __path__ Import errors here will (and
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# should) bubble up, but a missing __path__ (which is legal, but weird)
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# fails silently -- apps that do weird things with __path__ might
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# need to roll their own admin registration.
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try:
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app_path = import_module(app).__path__
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except AttributeError:
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continue
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# Step 2: use imp.find_module to find the app's admin.py. For some
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# reason imp.find_module raises ImportError if the app can't be found
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# but doesn't actually try to import the module. So skip this app if
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# its admin.py doesn't exist
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try:
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imp.find_module('admin', app_path)
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except ImportError:
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continue
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# Step 3: import the app's admin file. If this has errors we want them
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# to bubble up.
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import_module("%s.admin" % app)
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# autodiscover was successful, reset loading flag.
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LOADING = False
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