eggs/Django-1.4.5-py2.7.egg/django/contrib/admin/__init__.py

   1 # ACTION_CHECKBOX_NAME is unused, but should stay since its import from here
   2 # has been referenced in documentation.
   3 from django.contrib.admin.helpers import ACTION_CHECKBOX_NAME
   4 from django.contrib.admin.options import ModelAdmin, HORIZONTAL, VERTICAL
   5 from django.contrib.admin.options import StackedInline, TabularInline
   6 from django.contrib.admin.sites import AdminSite, site
   7 from django.contrib.admin.filters import (ListFilter, SimpleListFilter,
   8     FieldListFilter, BooleanFieldListFilter, RelatedFieldListFilter,
   9     ChoicesFieldListFilter, DateFieldListFilter, AllValuesFieldListFilter)
  10
  11
  12 def autodiscover():
  13     """
  14     Auto-discover INSTALLED_APPS admin.py modules and fail silently when
  15     not present. This forces an import on them to register any admin bits they
  16     may want.
  17     """
  18
  19     import copy
  20     from django.conf import settings
  21     from django.utils.importlib import import_module
  22     from django.utils.module_loading import module_has_submodule
  23
  24     for app in settings.INSTALLED_APPS:
  25         mod = import_module(app)
  26         # Attempt to import the app's admin module.
  27         try:
  28             before_import_registry = copy.copy(site._registry)
  29             import_module('%s.admin' % app)
  30         except:
  31             # Reset the model registry to the state before the last import as
  32             # this import will have to reoccur on the next request and this
  33             # could raise NotRegistered and AlreadyRegistered exceptions
  34             # (see #8245).
  35             site._registry = before_import_registry
  36
  37             # Decide whether to bubble up this error. If the app just
  38             # doesn't have an admin module, we can ignore the error
  39             # attempting to import it, otherwise we want it to bubble up.
  40             if module_has_submodule(mod, 'admin'):
  41                 raise