测试gitnore
This commit is contained in:
@@ -1,4 +1,4 @@
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from .config import AppConfig
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from .registry import apps
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__all__ = ["AppConfig", "apps"]
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__all__ = ['AppConfig', 'apps']
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@@ -8,8 +8,8 @@ from django.utils.deprecation import RemovedInDjango41Warning
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from django.utils.functional import cached_property
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from django.utils.module_loading import import_string, module_has_submodule
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APPS_MODULE_NAME = "apps"
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MODELS_MODULE_NAME = "models"
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APPS_MODULE_NAME = 'apps'
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MODELS_MODULE_NAME = 'models'
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class AppConfig:
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@@ -32,7 +32,7 @@ class AppConfig:
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# Last component of the Python path to the application e.g. 'admin'.
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# This value must be unique across a Django project.
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if not hasattr(self, "label"):
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if not hasattr(self, 'label'):
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self.label = app_name.rpartition(".")[2]
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if not self.label.isidentifier():
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raise ImproperlyConfigured(
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@@ -40,12 +40,12 @@ class AppConfig:
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)
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# Human-readable name for the application e.g. "Admin".
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if not hasattr(self, "verbose_name"):
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if not hasattr(self, 'verbose_name'):
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self.verbose_name = self.label.title()
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# Filesystem path to the application directory e.g.
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# '/path/to/django/contrib/admin'.
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if not hasattr(self, "path"):
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if not hasattr(self, 'path'):
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self.path = self._path_from_module(app_module)
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# Module containing models e.g. <module 'django.contrib.admin.models'
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@@ -58,12 +58,11 @@ class AppConfig:
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self.models = None
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def __repr__(self):
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return "<%s: %s>" % (self.__class__.__name__, self.label)
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return '<%s: %s>' % (self.__class__.__name__, self.label)
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@cached_property
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def default_auto_field(self):
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from django.conf import settings
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return settings.DEFAULT_AUTO_FIELD
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@property
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@@ -74,10 +73,11 @@ class AppConfig:
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"""Attempt to determine app's filesystem path from its module."""
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# See #21874 for extended discussion of the behavior of this method in
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# various cases.
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# Convert to list because __path__ may not support indexing.
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paths = list(getattr(module, "__path__", []))
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# Convert paths to list because Python's _NamespacePath doesn't support
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# indexing.
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paths = list(getattr(module, '__path__', []))
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if len(paths) != 1:
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filename = getattr(module, "__file__", None)
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filename = getattr(module, '__file__', None)
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if filename is not None:
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paths = [os.path.dirname(filename)]
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else:
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@@ -88,14 +88,12 @@ class AppConfig:
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raise ImproperlyConfigured(
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"The app module %r has multiple filesystem locations (%r); "
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"you must configure this app with an AppConfig subclass "
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"with a 'path' class attribute." % (module, paths)
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)
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"with a 'path' class attribute." % (module, paths))
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elif not paths:
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raise ImproperlyConfigured(
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"The app module %r has no filesystem location, "
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"you must configure this app with an AppConfig subclass "
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"with a 'path' class attribute." % module
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)
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"with a 'path' class attribute." % module)
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return paths[0]
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@classmethod
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@@ -122,7 +120,7 @@ class AppConfig:
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# If the apps module defines more than one AppConfig subclass,
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# the default one can declare default = True.
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if module_has_submodule(app_module, APPS_MODULE_NAME):
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mod_path = "%s.%s" % (entry, APPS_MODULE_NAME)
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mod_path = '%s.%s' % (entry, APPS_MODULE_NAME)
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mod = import_module(mod_path)
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# Check if there's exactly one AppConfig candidate,
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# excluding those that explicitly define default = False.
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@@ -130,31 +128,31 @@ class AppConfig:
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(name, candidate)
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for name, candidate in inspect.getmembers(mod, inspect.isclass)
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if (
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issubclass(candidate, cls)
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and candidate is not cls
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and getattr(candidate, "default", True)
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issubclass(candidate, cls) and
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candidate is not cls and
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getattr(candidate, 'default', True)
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)
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]
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if len(app_configs) == 1:
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app_config_class = app_configs[0][1]
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app_config_name = "%s.%s" % (mod_path, app_configs[0][0])
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app_config_name = '%s.%s' % (mod_path, app_configs[0][0])
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else:
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# Check if there's exactly one AppConfig subclass,
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# among those that explicitly define default = True.
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app_configs = [
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(name, candidate)
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for name, candidate in app_configs
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if getattr(candidate, "default", False)
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if getattr(candidate, 'default', False)
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]
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if len(app_configs) > 1:
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candidates = [repr(name) for name, _ in app_configs]
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raise RuntimeError(
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"%r declares more than one default AppConfig: "
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"%s." % (mod_path, ", ".join(candidates))
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'%r declares more than one default AppConfig: '
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'%s.' % (mod_path, ', '.join(candidates))
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)
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elif len(app_configs) == 1:
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app_config_class = app_configs[0][1]
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app_config_name = "%s.%s" % (mod_path, app_configs[0][0])
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app_config_name = '%s.%s' % (mod_path, app_configs[0][0])
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# If app_module specifies a default_app_config, follow the link.
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# default_app_config is deprecated, but still takes over the
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@@ -168,11 +166,13 @@ class AppConfig:
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app_config_class = cls
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app_name = entry
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else:
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message = "%r defines default_app_config = %r. " % (entry, new_entry)
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message = (
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'%r defines default_app_config = %r. ' % (entry, new_entry)
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)
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if new_entry == app_config_name:
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message += (
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"Django now detects this configuration automatically. "
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"You can remove default_app_config."
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'Django now detects this configuration automatically. '
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'You can remove default_app_config.'
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)
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else:
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message += (
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@@ -180,8 +180,7 @@ class AppConfig:
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"move the default config class to the apps submodule "
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"of your application and, if this module defines "
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"several config classes, mark the default one with "
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"default = True."
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% (
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"default = True." % (
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"picked another configuration, %r" % app_config_name
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if app_config_name
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else "did not find this configuration"
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@@ -203,7 +202,7 @@ class AppConfig:
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# If the last component of entry starts with an uppercase letter,
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# then it was likely intended to be an app config class; if not,
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# an app module. Provide a nice error message in both cases.
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mod_path, _, cls_name = entry.rpartition(".")
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mod_path, _, cls_name = entry.rpartition('.')
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if mod_path and cls_name[0].isupper():
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# We could simply re-trigger the string import exception, but
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# we're going the extra mile and providing a better error
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@@ -216,12 +215,9 @@ class AppConfig:
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for name, candidate in inspect.getmembers(mod, inspect.isclass)
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if issubclass(candidate, cls) and candidate is not cls
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]
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msg = "Module '%s' does not contain a '%s' class." % (
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mod_path,
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cls_name,
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)
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msg = "Module '%s' does not contain a '%s' class." % (mod_path, cls_name)
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if candidates:
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msg += " Choices are: %s." % ", ".join(candidates)
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msg += ' Choices are: %s.' % ', '.join(candidates)
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raise ImportError(msg)
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else:
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# Re-trigger the module import exception.
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@@ -230,7 +226,8 @@ class AppConfig:
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# Check for obvious errors. (This check prevents duck typing, but
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# it could be removed if it became a problem in practice.)
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if not issubclass(app_config_class, AppConfig):
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raise ImproperlyConfigured("'%s' isn't a subclass of AppConfig." % entry)
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raise ImproperlyConfigured(
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"'%s' isn't a subclass of AppConfig." % entry)
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# Obtain app name here rather than in AppClass.__init__ to keep
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# all error checking for entries in INSTALLED_APPS in one place.
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@@ -238,15 +235,16 @@ class AppConfig:
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try:
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app_name = app_config_class.name
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except AttributeError:
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raise ImproperlyConfigured("'%s' must supply a name attribute." % entry)
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raise ImproperlyConfigured(
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"'%s' must supply a name attribute." % entry
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)
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# Ensure app_name points to a valid module.
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try:
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app_module = import_module(app_name)
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except ImportError:
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raise ImproperlyConfigured(
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"Cannot import '%s'. Check that '%s.%s.name' is correct."
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% (
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"Cannot import '%s'. Check that '%s.%s.name' is correct." % (
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app_name,
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app_config_class.__module__,
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app_config_class.__qualname__,
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@@ -270,8 +268,7 @@ class AppConfig:
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return self.models[model_name.lower()]
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except KeyError:
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raise LookupError(
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"App '%s' doesn't have a '%s' model." % (self.label, model_name)
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)
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"App '%s' doesn't have a '%s' model." % (self.label, model_name))
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def get_models(self, include_auto_created=False, include_swapped=False):
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"""
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@@ -300,7 +297,7 @@ class AppConfig:
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self.models = self.apps.all_models[self.label]
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if module_has_submodule(self.module, MODELS_MODULE_NAME):
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models_module_name = "%s.%s" % (self.name, MODELS_MODULE_NAME)
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models_module_name = '%s.%s' % (self.name, MODELS_MODULE_NAME)
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self.models_module = import_module(models_module_name)
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def ready(self):
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@@ -21,7 +21,7 @@ class Apps:
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# installed_apps is set to None when creating the master registry
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# because it cannot be populated at that point. Other registries must
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# provide a list of installed apps and are populated immediately.
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if installed_apps is None and hasattr(sys.modules[__name__], "apps"):
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if installed_apps is None and hasattr(sys.modules[__name__], 'apps'):
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raise RuntimeError("You must supply an installed_apps argument.")
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# Mapping of app labels => model names => model classes. Every time a
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@@ -92,22 +92,20 @@ class Apps:
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if app_config.label in self.app_configs:
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raise ImproperlyConfigured(
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"Application labels aren't unique, "
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"duplicates: %s" % app_config.label
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)
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"duplicates: %s" % app_config.label)
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self.app_configs[app_config.label] = app_config
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app_config.apps = self
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# Check for duplicate app names.
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counts = Counter(
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app_config.name for app_config in self.app_configs.values()
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)
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duplicates = [name for name, count in counts.most_common() if count > 1]
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app_config.name for app_config in self.app_configs.values())
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duplicates = [
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name for name, count in counts.most_common() if count > 1]
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if duplicates:
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raise ImproperlyConfigured(
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"Application names aren't unique, "
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"duplicates: %s" % ", ".join(duplicates)
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)
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"duplicates: %s" % ", ".join(duplicates))
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self.apps_ready = True
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@@ -203,7 +201,7 @@ class Apps:
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self.check_apps_ready()
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if model_name is None:
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app_label, model_name = app_label.split(".")
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app_label, model_name = app_label.split('.')
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app_config = self.get_app_config(app_label)
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@@ -219,22 +217,17 @@ class Apps:
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model_name = model._meta.model_name
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app_models = self.all_models[app_label]
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if model_name in app_models:
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if (
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model.__name__ == app_models[model_name].__name__
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and model.__module__ == app_models[model_name].__module__
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):
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if (model.__name__ == app_models[model_name].__name__ and
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model.__module__ == app_models[model_name].__module__):
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warnings.warn(
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"Model '%s.%s' was already registered. Reloading models is not "
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"advised as it can lead to inconsistencies, most notably with "
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"related models." % (app_label, model_name),
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RuntimeWarning,
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stacklevel=2,
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)
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"Model '%s.%s' was already registered. "
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"Reloading models is not advised as it can lead to inconsistencies, "
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"most notably with related models." % (app_label, model_name),
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RuntimeWarning, stacklevel=2)
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else:
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raise RuntimeError(
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"Conflicting '%s' models in application '%s': %s and %s."
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% (model_name, app_label, app_models[model_name], model)
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)
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"Conflicting '%s' models in application '%s': %s and %s." %
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(model_name, app_label, app_models[model_name], model))
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app_models[model_name] = model
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self.do_pending_operations(model)
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self.clear_cache()
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@@ -261,8 +254,8 @@ class Apps:
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candidates = []
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for app_config in self.app_configs.values():
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if object_name.startswith(app_config.name):
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subpath = object_name[len(app_config.name) :]
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if subpath == "" or subpath[0] == ".":
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subpath = object_name[len(app_config.name):]
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if subpath == '' or subpath[0] == '.':
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candidates.append(app_config)
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if candidates:
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return sorted(candidates, key=lambda ac: -len(ac.name))[0]
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@@ -277,7 +270,8 @@ class Apps:
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"""
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model = self.all_models[app_label].get(model_name.lower())
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if model is None:
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raise LookupError("Model '%s.%s' not registered." % (app_label, model_name))
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raise LookupError(
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"Model '%s.%s' not registered." % (app_label, model_name))
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return model
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@functools.lru_cache(maxsize=None)
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@@ -292,14 +286,13 @@ class Apps:
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change after Django has loaded the settings, there is no reason to get
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the respective settings attribute over and over again.
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"""
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to_string = to_string.lower()
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for model in self.get_models(include_swapped=True):
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swapped = model._meta.swapped
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# Is this model swapped out for the model given by to_string?
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if swapped and swapped.lower() == to_string:
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if swapped and swapped == to_string:
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return model._meta.swappable
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# Is this model swappable and the one given by to_string?
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if model._meta.swappable and model._meta.label_lower == to_string:
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if model._meta.swappable and model._meta.label == to_string:
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return model._meta.swappable
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return None
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@@ -409,7 +402,6 @@ class Apps:
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def apply_next_model(model):
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next_function = partial(apply_next_model.func, model)
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self.lazy_model_operation(next_function, *more_models)
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apply_next_model.func = function
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# If the model has already been imported and registered, partially
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