# Path: tutelary/engine.py
# class Object(EscapeSeparated):
#     """Objects are represented by slash-separated sequences of elements
#     (e.g. ``Cadasta/Batangas/parcel/123``, ``H4H/PaP/party/118``) with
#     wildcard elements indicated by ``*``
#     (e.g. ``Cadasta/*/parcel/*``).  Slashes can be backslash-escaped,
#     as can backslashes (e.g. ``Cadasta/Village-X\/Y/parcel/943``).
# 
#     """
#     separator = '/'
# 
# class Action(SimpleSeparated):
#     """Actions are represented by period-separated sequences of elements
#     (e.g. ``parcel.edit``, ``admin.assign-role``) with wildcard
#     elements indicated by ``*`` (e.g. ``party.*``).  A list of
#     *registered* actions is maintained to support permissions set
#     queries to find the set of actions that are permitted on a
#     specified object pattern.
# 
#     """
#     separator = '.'
# 
#     registered = set()
# 
#     def register(action):
#         """Action registration is used to support generating lists of
#         permitted actions from a permission set and an object pattern.
#         Only registered actions will be returned by such queries.
# 
#         """
#         if isinstance(action, str):
#             Action.register(Action(action))
#         elif isinstance(action, Action):
#             Action.registered.add(action)
#         else:
#             for a in action:
#                 Action.register(a)
# 
# Path: tutelary/models.py
# def check_perms(user, actions, objs, method=None):
#     ensure_permission_set_tree_cached(user)
#     if actions is False:
#         return False
#     if actions is not None:
#         for a in actions:
#             for o in objs:
#                 test_obj = None
#                 if o is not None:
#                     test_obj = o.get_permissions_object(a)
#                 if not user.has_perm(a, test_obj):
#                     return False
#     return True
# 
# Path: tutelary/exceptions.py
# class DecoratorException(TutelaryException):
#     """Exception raised if the ``permissioned_model`` decorator is used
#     without the required ``TutelaryMeta`` class member being included
#     in the model.
# 
#     """
#     def __init__(self, decorator, msg):
#         super().__init__(
#             "error expanding decorator '" + decorator + "': " + msg
#         )
# 
# class PermissionObjectException(TutelaryException):
#     """Exception raised by the ``permissioned_model`` decorator if a
#     ``permissions_object`` property in the ``actions`` list refers to
#     a non-existent model field, or to a field that is not a foreign
#     key or one-to-one relation field.
# 
#     """
#     def __init__(self, prop):
#         super().__init__(
#             "invalid permissions_object property '" + prop +
#             "' in permissioned_model"
#         )


from functools import reduce, wraps
from django.core.exceptions import PermissionDenied
from django.db import models
from django.utils.decorators import available_attrs
from .engine import Object, Action
from .models import check_perms
from .exceptions import DecoratorException, PermissionObjectException
    def retfn(obj, action):
        if action in perms_objs:
            if perms_objs[action] is None:
                return None
            else:
                return get_perms_object(getattr(obj, perms_objs[action]),
                                        action)
        else:
            return get_perms_object(obj, action)
    return retfn


def permissioned_model(cls, perm_type=None, path_fields=None, actions=None):
    """Function to set up a model for permissioning.  Can either be called
    directly, passing a class and suitable values for ``perm_type``,
    ``path_fields`` and ``actions``, or can be used as a class
    decorator, taking values for ``perm_type``, ``path_fields`` and
    ``actions`` from the ``TutelaryMeta`` subclass of the decorated
    class.

    """
    if not issubclass(cls, models.Model):
        raise DecoratorException(
            'permissioned_model',
            "class '" + cls.__name__ + "' is not a Django model"
        )
    added = False
    try:
        if not hasattr(cls, 'TutelaryMeta'):
            if perm_type is None or path_fields is None or actions is None:

# Path: tutelary/engine.py
# class Object(EscapeSeparated):
#     """Objects are represented by slash-separated sequences of elements
#     (e.g. ``Cadasta/Batangas/parcel/123``, ``H4H/PaP/party/118``) with
#     wildcard elements indicated by ``*``
#     (e.g. ``Cadasta/*/parcel/*``).  Slashes can be backslash-escaped,
#     as can backslashes (e.g. ``Cadasta/Village-X\/Y/parcel/943``).
# 
#     """
#     separator = '/'
# 
# class Action(SimpleSeparated):
#     """Actions are represented by period-separated sequences of elements
#     (e.g. ``parcel.edit``, ``admin.assign-role``) with wildcard
#     elements indicated by ``*`` (e.g. ``party.*``).  A list of
#     *registered* actions is maintained to support permissions set
#     queries to find the set of actions that are permitted on a
#     specified object pattern.
# 
#     """
#     separator = '.'
# 
#     registered = set()
# 
#     def register(action):
#         """Action registration is used to support generating lists of
#         permitted actions from a permission set and an object pattern.
#         Only registered actions will be returned by such queries.
# 
#         """
#         if isinstance(action, str):
#             Action.register(Action(action))
#         elif isinstance(action, Action):
#             Action.registered.add(action)
#         else:
#             for a in action:
#                 Action.register(a)
# 
# Path: tutelary/models.py
# def check_perms(user, actions, objs, method=None):
#     ensure_permission_set_tree_cached(user)
#     if actions is False:
#         return False
#     if actions is not None:
#         for a in actions:
#             for o in objs:
#                 test_obj = None
#                 if o is not None:
#                     test_obj = o.get_permissions_object(a)
#                 if not user.has_perm(a, test_obj):
#                     return False
#     return True
# 
# Path: tutelary/exceptions.py
# class DecoratorException(TutelaryException):
#     """Exception raised if the ``permissioned_model`` decorator is used
#     without the required ``TutelaryMeta`` class member being included
#     in the model.
# 
#     """
#     def __init__(self, decorator, msg):
#         super().__init__(
#             "error expanding decorator '" + decorator + "': " + msg
#         )
# 
# class PermissionObjectException(TutelaryException):
#     """Exception raised by the ``permissioned_model`` decorator if a
#     ``permissions_object`` property in the ``actions`` list refers to
#     a non-existent model field, or to a field that is not a foreign
#     key or one-to-one relation field.
# 
#     """
#     def __init__(self, prop):
#         super().__init__(
#             "invalid permissions_object property '" + prop +
#             "' in permissioned_model"
#         )


# Path: tutelary/decorators.py
from functools import reduce, wraps
from django.core.exceptions import PermissionDenied
from django.db import models
from django.utils.decorators import available_attrs
from .engine import Object, Action
from .models import check_perms
from .exceptions import DecoratorException, PermissionObjectException

    def retfn(obj, action):
        if action in perms_objs:
            if perms_objs[action] is None:
                return None
            else:
                return get_perms_object(getattr(obj, perms_objs[action]),
                                        action)
        else:
            return get_perms_object(obj, action)
    return retfn


def permissioned_model(cls, perm_type=None, path_fields=None, actions=None):
    """Function to set up a model for permissioning.  Can either be called
    directly, passing a class and suitable values for ``perm_type``,
    ``path_fields`` and ``actions``, or can be used as a class
    decorator, taking values for ``perm_type``, ``path_fields`` and
    ``actions`` from the ``TutelaryMeta`` subclass of the decorated
    class.

    """
    if not issubclass(cls, models.Model):
        raise DecoratorException(
            'permissioned_model',
            "class '" + cls.__name__ + "' is not a Django model"
        )
    added = False
    try:
        if not hasattr(cls, 'TutelaryMeta'):
            if perm_type is None or path_fields is None or actions is None:

                raise DecoratorException(