gramps/gramps2/src/RelLib/_AttributeBase.py
Alex Roitman 7329720f07 * RelLib/_*.py: Make objects serialize all the way down to built-in
python objects, so that Gramps classes are never pickled.
* Date.py, CalSdn.py: Move to RelLib.
* src/dates/Date_*.py: Use new Date.
* src/plugins/*.py: Use new Date.
* src/GrampsDb/_*.py: Use new Date, new unserialize.
* src/*.py: Use new Date.


svn: r5875
2006-02-03 22:03:53 +00:00

111 lines
3.5 KiB
Python

#
# 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 class for GRAMPS
"""
#-------------------------------------------------------------------------
#
# 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):
return [attr.serialize() for attr in self.attribute_list]
def unserialize(self,data):
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}
"""
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