querier: Improve error message when ERQLExpression fails on some entity (closes #2267081)
When an RQL variable is indeed "constant" (we know it's eid) ERQL expression are
not inserted but checked prior query execution. If the session have no read
access to the entity an `Unauthorized` exception is raised.
This changeset add a meaningfull message to this exception::
No read acces on "X" with eid 42.
# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of CubicWeb.
#
# CubicWeb is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option)
# any later version.
#
# CubicWeb 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 Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with CubicWeb. If not, see <http://www.gnu.org/licenses/>.
"""Set of HTML errors views. Error view are generally implemented
as startup views and are used for standard error pages (404, 500, etc.)
"""
__docformat__ = "restructuredtext en"
from cubicweb.view import StartupView
class FourOhFour(StartupView):
__regid__ = '404'
def call(self):
_ = self._cw._
self.w(u"<h1>%s</h1>" % _('this resource does not exist'))
class ErrorOccured(StartupView):
__regid__ = '500'
def call(self):
_ = self._cw._
self.w(u"<h1>%s</h1>" %
_('an error occurred, the request cannot be fulfilled'))