gramps/src/RelLib/_Event.py
Don Allingham ea394fd4d2 2006-05-19 Don Allingham <don@gramps-project.org>
* src/RelLib/_SecondaryObject.py: added, provide is_equal
	* src/RelLib/_Url.py: inherit from SecondaryObject
	* src/RelLib/_MediaRef.py: inherit from SecondaryObject
	* src/RelLib/_ChildRef.py: inherit from SecondaryObject
	* src/RelLib/_Name.py: inherit from SecondaryObject
	* src/RelLib/_Address.py: inherit from SecondaryObject
	* src/RelLib/_SourceRef.py: inherit from SecondaryObject
	* src/RelLib/_RepoRef.py: inherit from SecondaryObject
	* src/RelLib/_PersonRef.py: inherit from SecondaryObject
	* src/RelLib/_Attribute.py: inherit from SecondaryObject
	* src/RelLib/_Note.py: inherit from SecondaryObject
	* src/RelLib/_Location.py: inherit from SecondaryObject
	* src/RelLib/_EventRef.py: inherit from SecondaryObject
	* src/RelLib/_Event.py: inherit from SecondaryObject
	* src/RelLib/_LdsOrd.py: inherit from SecondaryObject



svn: r6720
2006-05-19 15:01:12 +00:00

297 lines
9.5 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
#
# $Id$
"""
Event object for GRAMPS
"""
#-------------------------------------------------------------------------
#
# standard python modules
#
#-------------------------------------------------------------------------
from warnings import warn
#-------------------------------------------------------------------------
#
# GRAMPS modules
#
#-------------------------------------------------------------------------
from _PrimaryObject import PrimaryObject
from _SourceBase import SourceBase
from _NoteBase import NoteBase
from _MediaBase import MediaBase
from _DateBase import DateBase
from _PlaceBase import PlaceBase
from _EventType import EventType
#-------------------------------------------------------------------------
#
# Event class
#
#-------------------------------------------------------------------------
class Event(PrimaryObject,SourceBase,NoteBase,MediaBase,DateBase,PlaceBase):
"""
Introduction
============
The Event record is used to store information about some type of
action that occurred at a particular place at a particular time,
such as a birth, death, or marriage.
"""
def __init__(self,source=None):
"""
Creates a new Event instance, copying from the source if present
@param source: An event used to initialize the new event
@type source: Event
"""
PrimaryObject.__init__(self,source)
SourceBase.__init__(self,source)
NoteBase.__init__(self,source)
MediaBase.__init__(self,source)
DateBase.__init__(self,source)
PlaceBase.__init__(self,source)
if source:
self.description = source.description
self.type = source.type
self.cause = source.cause
else:
self.description = ""
self.type = EventType()
self.cause = ""
def serialize(self):
"""
Converts the data held in the event to a Python tuple that
represents all the data elements. This method is used to convert
the object into a form that can easily be saved to a database.
These elements may be primative Python types (string, integers),
complex Python types (lists or tuples, or Python objects. If the
target database cannot handle complex types (such as objectes or
lists), the database is responsible for converting the data into
a form that it can use.
@returns: Returns a python tuple containing the data that should
be considered persistent.
@rtype: tuple
"""
return (self.handle, self.gramps_id, self.type.serialize(),
DateBase.serialize(self),
self.description, self.place, self.cause,
SourceBase.serialize(self),
NoteBase.serialize(self),
MediaBase.serialize(self),
self.change, self.marker.serialize(), self.private)
def unserialize(self,data):
"""
Converts the data held in a tuple created by the serialize method
back into the data in an Event structure.
@param data: tuple containing the persistent data associated the
Person object
@type data: tuple
"""
(self.handle, self.gramps_id, the_type, date,
self.description, self.place, self.cause,
source_list, note, media_list,
self.change, marker, self.private) = data
self.marker.unserialize(marker)
self.type.unserialize(the_type)
DateBase.unserialize(self,date)
MediaBase.unserialize(self,media_list)
SourceBase.unserialize(self,source_list)
NoteBase.unserialize(self,note)
def _has_handle_reference(self,classname,handle):
if classname == 'Place':
return self.place == handle
return False
def _remove_handle_references(self,classname,handle_list):
if classname == 'Place' and self.place in handle_list:
self.place = ""
def _replace_handle_reference(self,classname,old_handle,new_handle):
if classname == 'Place' and self.place == old_handle:
self.place = new_handle
def get_text_data_list(self):
"""
Returns the list of all textual attributes of the object.
@return: Returns the list of all textual attributes of the object.
@rtype: list
"""
return [self.description,str(self.type),self.cause,self.gramps_id]
#return [self.description,self.type[1],self.cause,
# self.get_date(),self.gramps_id]
def get_text_data_child_list(self):
"""
Returns the list of child objects that may carry textual data.
@return: Returns the list of child objects that may carry textual data.
@rtype: list
"""
check_list = self.media_list + self.source_list
if self.note:
check_list.append(self.note)
return check_list
def get_sourcref_child_list(self):
"""
Returns the list of child secondary objects that may refer sources.
@return: Returns the list of child secondary child objects that may refer sources.
@rtype: list
"""
return self.media_list
def get_referenced_handles(self):
"""
Returns the list of (classname,handle) tuples for all directly
referenced primary objects.
@return: Returns the list of (classname,handle) tuples for referenced objects.
@rtype: list
"""
ret = []
if self.place:
ret.append(('Place',self.place))
return ret
def get_handle_referents(self):
"""
Returns the list of child objects which may, directly or through
their children, reference primary objects..
@return: Returns the list of objects refereincing primary objects.
@rtype: list
"""
return self.media_list + self.source_list
def is_empty(self):
"""
Returns True if the Event is an empty object (no values set).
@returns: True if the Event is empty
@rtype: bool
"""
date = self.get_date_object()
place = self.get_place_handle()
description = self.description
cause = self.cause
the_type = self.type
return (the_type == EventType.CUSTOM and date.is_empty()
and not place and not description and not cause)
def are_equal(self,other):
"""
Returns True if the passed Event is equivalent to the current Event.
@param other: Event to compare against
@type other: Event
@returns: True if the Events are equal
@rtype: bool
"""
if other == None:
other = Event (None)
if self.type != other.type or \
((self.place or other.place) and (self.place != other.place)) or \
self.description != other.description or self.cause != other.cause \
or self.private != other.private or \
(not self.get_date_object().is_equal(other.get_date_object())) or \
len(self.get_source_references()) != len(other.get_source_references()):
return False
index = 0
olist = other.get_source_references()
for a in self.get_source_references():
if not a.is_equal(olist[index]):
return False
index += 1
return True
def set_type(self,the_type):
"""
Sets the type of the Event to the passed (int,str) tuple.
@param the_type: Type to assign to the Event
@type the_type: tuple
"""
self.type.set(the_type)
def get_type(self):
"""
Returns the type of the Event.
@return: Type of the Event
@rtype: tuple
"""
return self.type
def set_cause(self,cause):
"""
Sets the cause of the Event to the passed string. The string
may contain any information.
@param cause: Cause to assign to the Event
@type cause: str
"""
self.cause = cause
def get_cause(self):
"""
Returns the cause of the Event.
@return: Returns the cause of the Event
@rtype: str
"""
return self.cause
def set_description(self,description):
"""
Sets the description of the Event to the passed string. The string
may contain any information.
@param description: Description to assign to the Event
@type description: str
"""
self.description = description
def get_description(self) :
"""
Returns the description of the Event.
@return: Returns the description of the Event
@rtype: str
"""
return self.description