old gnuviechadmin version that is not developed anymore
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# -*- coding: utf-8 -*-
#
# Copyright (C) 2007, 2008 by Jan Dittberner.
#
# 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 2 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
# USA.
#
# Version: $Id$
"""This file defines the gnuviechadmin specific exception types."""
class GnuviechadminError(Exception):
"""This is the base class for domain specific exceptions of
Gnuviechadmin."""
pass
class MissingFieldsError(GnuviechadminError):
"""This exception should be raised when a required field of a data
class is missing."""
def __init__(self, missingfields):
GnuviechadminError.__init__(self)
self.missing = missingfields
def __str__(self):
return "the fields %s are missing." % (repr(self.missing))
class CreationFailedError(GnuviechadminError):
"""This exception should be raised if a business object could not
be created."""
def __init__(self, classname, cause = None):
GnuviechadminError.__init__(self)
self.classname = classname
self.cause = cause
def __str__(self):
msg = "Creating an instance of class %s failed." % (self.classname)
if self.cause:
msg += " The reason is %s." % (str(self.cause))
return msg
class DeleteFailedError(GnuviechadminError):
"""This exception should be raise if a business object coild not
be deleted."""
def __init__(self, classname, cause = None):
GnuviechadminError.__init__(self)
self.classname = classname
self.cause = cause
def __str__(self):
msg = "Deleting an instance of class %s failed." % (self.classname)
if self.cause:
msg += " The reason is %s." % (str(self.cause))
return msg
class ValidationFailedError(GnuviechadminError):
"""This exception should be raised if the validation of a business
object failed."""
def __init__(self, instance, cause = None):
GnuviechadminError.__init__(self)
self.instance = instance
self.cause = cause
def __str__(self):
msg = "Validating %s failed." % (str(self.instance))
if self.cause:
msg += " The reason is %s." % (str(self.cause))
return msg
class CannotDeleteError(GnuviechadminError):
"""This exception should be raised if an entity cannot be deleted
because of some unmatched precondition."""
def __init__(self, instance, cause = None):
GnuviechadminError.__init__(self)
self.instance = instance
self.cause = cause
def __str__(self):
msg = "Cannot delete %s." % (str(self.instance))
if self.cause:
msg += " The reason is %s." % (str(self.cause))
return msg