Files @ 260a7a01b054
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Location: kallithea/rhodecode/model/repo_permission.py

Mads Kiilerich
follow Python conventions for boolean values

True and False might be singletons and the "default" values for "boolean"
expressions, but "all" values in Python has a boolean value and should be
evaluated as such. Checking with 'is True' and 'is False' is thus confusing,
error prone and unnessarily complex.

If we anywhere rely and nullable boolean fields from the database layer and
don't want the null value to be treated as False then we should check
explicitly for null with 'is None'.
# -*- coding: utf-8 -*-
"""
    rhodecode.model.users_group
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~

    repository permission model for RhodeCode

    :created_on: Oct 1, 2011
    :author: nvinot, marcink
    :copyright: (C) 2011-2011 Nicolas Vinot <aeris@imirhil.fr>
    :copyright: (C) 2011-2012 Marcin Kuzminski <marcin@python-works.com>
    :license: GPLv3, see COPYING for more details.
"""
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import logging
from rhodecode.model import BaseModel
from rhodecode.model.db import UserRepoToPerm, UserGroupRepoToPerm, \
    Permission

log = logging.getLogger(__name__)


class RepositoryPermissionModel(BaseModel):

    cls = UserRepoToPerm

    def get_user_permission(self, repository, user):
        repository = self._get_repo(repository)
        user = self._get_user(user)

        return UserRepoToPerm.query() \
                .filter(UserRepoToPerm.user == user) \
                .filter(UserRepoToPerm.repository == repository) \
                .scalar()

    def update_user_permission(self, repository, user, permission):
        permission = Permission.get_by_key(permission)
        current = self.get_user_permission(repository, user)
        if current:
            if not current.permission is permission:
                current.permission = permission
        else:
            p = UserRepoToPerm()
            p.user = user
            p.repository = repository
            p.permission = permission
            self.sa.add(p)

    def delete_user_permission(self, repository, user):
        current = self.get_user_permission(repository, user)
        if current:
            self.sa.delete(current)

    def get_users_group_permission(self, repository, users_group):
        return UserGroupRepoToPerm.query() \
                .filter(UserGroupRepoToPerm.users_group == users_group) \
                .filter(UserGroupRepoToPerm.repository == repository) \
                .scalar()

    def update_users_group_permission(self, repository, users_group,
                                      permission):
        permission = Permission.get_by_key(permission)
        current = self.get_users_group_permission(repository, users_group)
        if current:
            if not current.permission is permission:
                current.permission = permission
        else:
            p = UserGroupRepoToPerm()
            p.users_group = users_group
            p.repository = repository
            p.permission = permission
            self.sa.add(p)

    def delete_users_group_permission(self, repository, users_group):
        current = self.get_users_group_permission(repository, users_group)
        if current:
            self.sa.delete(current)

    def update_or_delete_user_permission(self, repository, user, permission):
        if permission:
            self.update_user_permission(repository, user, permission)
        else:
            self.delete_user_permission(repository, user)

    def update_or_delete_users_group_permission(self, repository, user_group,
                                              permission):
        if permission:
            self.update_users_group_permission(repository, user_group,
                                               permission)
        else:
            self.delete_users_group_permission(repository, user_group)