_AttributeBase.py from gramps at Krugle
Show _AttributeBase.py syntax highlighted
#
# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2000-2006 Donald N. Allingham
#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# $Id: _AttributeBase.py 8881 2007-08-28 03:57:56Z dallingham $
"""
AttributeBase class for GRAMPS
"""
__revision__ = "$Revision: 8881 $"
#-------------------------------------------------------------------------
#
# GRAMPS modules
#
#-------------------------------------------------------------------------
from _Attribute import Attribute
#-------------------------------------------------------------------------
#
# AttributeBase class
#
#-------------------------------------------------------------------------
class AttributeBase:
"""
Base class for attribute-aware objects.
"""
def __init__(self, source=None):
"""
Initialize a AttributeBase. If the source is not None, then object
is initialized from values of the source object.
@param source: Object used to initialize the new object
@type source: AttributeBase
"""
if source:
self.attribute_list = [ Attribute(attribute) \
for attribute in source.attribute_list ]
else:
self.attribute_list = []
def serialize(self):
"""
Converts the object to a serialized tuple of data
"""
return [attr.serialize() for attr in self.attribute_list]
def unserialize(self, data):
"""
Converts a serialized tuple of data to an object
"""
self.attribute_list = [Attribute().unserialize(item) for item in data]
def add_attribute(self, attribute):
"""
Adds the L{Attribute} instance to the object's list of attributes
@param attribute: L{Attribute} instance to add.
@type attribute: L{Attribute}
"""
assert type(attribute) != unicode
self.attribute_list.append(attribute)
def remove_attribute(self, attribute):
"""
Removes the specified L{Attribute} instance from the attribute list
If the instance does not exist in the list, the operation has
no effect.
@param attribute: L{Attribute} instance to remove from the list
@type attribute: L{Attribute}
@return: True if the attribute was removed, False if it was not
in the list.
@rtype: bool
"""
if attribute in self.attribute_list:
self.attribute_list.remove(attribute)
return True
else:
return False
def get_attribute_list(self):
"""
Returns the list of L{Attribute} instances associated with the object.
@returns: Returns the list of L{Attribute} instances.
@rtype: list
"""
return self.attribute_list
def set_attribute_list(self, attribute_list):
"""
Assigns the passed list to the Person's list of L{Attribute} instances.
@param attribute_list: List of L{Attribute} instances to ba associated
with the Person
@type attribute_list: list
"""
self.attribute_list = attribute_list
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