Python django.core.exceptions.AppRegistryNotReady() Examples

def set_installed_apps(self, installed):
        """
        Enables a different set of installed apps for get_app_config[s].

        installed must be an iterable in the same format as INSTALLED_APPS.

        set_installed_apps() must be balanced with unset_installed_apps(),
        even if it exits with an exception.

        Primarily used as a receiver of the setting_changed signal in tests.

        This method may trigger new imports, which may add new models to the
        registry of all imported models. They will stay in the registry even
        after unset_installed_apps(). Since it isn't possible to replay
        imports safely (eg. that could lead to registering listeners twice),
        models are registered when they're imported and never removed.
        """
        if not self.ready:
            raise AppRegistryNotReady("App registry isn't ready yet.")
        self.stored_app_configs.append(self.app_configs)
        self.app_configs = OrderedDict()
        self.apps_ready = self.models_ready = self.ready = False
        self.clear_cache()
        self.populate(installed) 

def hydrate_models_and_permissions(app_config):
    """
    Setup content types, base permissions and data source
    specific permission groups for use in the admin.
    """
    try:
        create_contenttypes(app_config, interactive=False, verbosity=4)
    except OperationalError as e:
        logger.error("Error creating content-types: %s" % e)

    try:
        create_permissions(app_config, interactive=False, verbosity=4)
    except OperationalError as e:
        logger.error("Error creating permissions: %s" % e)

    try:
        build_permission_groups(app_config.name)
    except (OperationalError, AppRegistryNotReady) as e:
        logger.error("Error creating permission groups: %s" % e)

    try:
        build_tag_permission_group()
    except (OperationalError, AppRegistryNotReady) as e:
        logger.error("Error creating tagging perm group: %s" % e) 

def _add_installed_apps_translations(self):
        """Merges translations from each installed app."""
        try:
            app_configs = reversed(list(apps.get_app_configs()))
        except AppRegistryNotReady:
            raise AppRegistryNotReady(
                "The translation infrastructure cannot be initialized before the "
                "apps registry is ready. Check that you don't make non-lazy "
                "gettext calls at import time.")
        for app_config in app_configs:
            localedir = os.path.join(app_config.path, 'locale')
            translation = self._new_gnu_trans(localedir)
            self.merge(translation) 

def check_apps_ready(self):
        """
        Raises an exception if all apps haven't been imported yet.
        """
        if not self.apps_ready:
            raise AppRegistryNotReady("Apps aren't loaded yet.") 

def check_models_ready(self):
        """
        Raises an exception if all models haven't been imported yet.
        """
        if not self.models_ready:
            raise AppRegistryNotReady("Models aren't loaded yet.") 

def check_models_ready(self):
        """
        Raises an exception if models haven't been imported yet.
        """
        if self.models is None:
            raise AppRegistryNotReady(
                "Models for app '%s' haven't been imported yet." % self.label) 

def _add_installed_apps_translations(self):
        """Merge translations from each installed app."""
        try:
            app_configs = reversed(list(apps.get_app_configs()))
        except AppRegistryNotReady:
            raise AppRegistryNotReady(
                "The translation infrastructure cannot be initialized before the "
                "apps registry is ready. Check that you don't make non-lazy "
                "gettext calls at import time.")
        for app_config in app_configs:
            localedir = os.path.join(app_config.path, 'locale')
            if os.path.exists(localedir):
                translation = self._new_gnu_trans(localedir)
                self.merge(translation) 

def _add_installed_apps_translations(self):
        """Merge translations from each installed app."""
        try:
            app_configs = reversed(list(apps.get_app_configs()))
        except AppRegistryNotReady:
            raise AppRegistryNotReady(
                "The translation infrastructure cannot be initialized before the "
                "apps registry is ready. Check that you don't make non-lazy "
                "gettext calls at import time.")
        for app_config in app_configs:
            localedir = os.path.join(app_config.path, 'locale')
            if os.path.exists(localedir):
                translation = self._new_gnu_trans(localedir)
                self.merge(translation) 

def _add_installed_apps_translations(self):
        """Merges translations from each installed app."""
        try:
            app_configs = reversed(list(apps.get_app_configs()))
        except AppRegistryNotReady:
            raise AppRegistryNotReady(
                "The translation infrastructure cannot be initialized before the "
                "apps registry is ready. Check that you don't make non-lazy "
                "gettext calls at import time.")
        for app_config in app_configs:
            localedir = os.path.join(app_config.path, 'locale')
            if os.path.exists(localedir):
                translation = self._new_gnu_trans(localedir)
                self.merge(translation) 

def _add_installed_apps_translations(self):
        """Merges translations from each installed app."""
        try:
            app_configs = reversed(list(apps.get_app_configs()))
        except AppRegistryNotReady:
            raise AppRegistryNotReady(
                "The translation infrastructure cannot be initialized before the "
                "apps registry is ready. Check that you don't make non-lazy "
                "gettext calls at import time.")
        for app_config in app_configs:
            localedir = os.path.join(app_config.path, 'locale')
            translation = self._new_gnu_trans(localedir)
            self.merge(translation) 

def _add_installed_apps_translations(self):
        """Merges translations from each installed app."""
        try:
            app_configs = reversed(list(apps.get_app_configs()))
        except AppRegistryNotReady:
            raise AppRegistryNotReady(
                "The translation infrastructure cannot be initialized before the "
                "apps registry is ready. Check that you don't make non-lazy "
                "gettext calls at import time.")
        for app_config in app_configs:
            localedir = os.path.join(app_config.path, 'locale')
            if os.path.exists(localedir):
                translation = self._new_gnu_trans(localedir)
                self.merge(translation) 

def test_models_not_loaded(self):
        """
        apps.get_models() raises an exception if apps.models_ready isn't True.
        """
        apps.models_ready = False
        try:
            # The cache must be cleared to trigger the exception.
            apps.get_models.cache_clear()
            with self.assertRaisesMessage(AppRegistryNotReady, "Models aren't loaded yet."):
                apps.get_models()
        finally:
            apps.models_ready = True 

def test_get_containing_app_config_apps_not_ready(self):
        """
        apps.get_containing_app_config() should raise an exception if
        apps.apps_ready isn't True.
        """
        apps.apps_ready = False
        try:
            with self.assertRaisesMessage(AppRegistryNotReady, "Apps aren't loaded yet"):
                apps.get_containing_app_config('foo')
        finally:
            apps.apps_ready = True