#
# Gramps - a GTK+/GNOME based genealogy program
#
# Copyright (C) 2000-2007 Donald N. Allingham
# Copyright (C) 2009 Gary Burton
#
# 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
#
# $Id$
"""
Non GUI/GTK related utility functions
"""
#-------------------------------------------------------------------------
#
# Standard python modules
#
#-------------------------------------------------------------------------
import os
import sys
import locale
import random
import time
import shutil
import platform
import uuid
#-------------------------------------------------------------------------
#
# Gramps modules
#
#-------------------------------------------------------------------------
from gen.display.name import displayer as name_displayer
import gen.lib
import Errors
from GrampsLocale import codeset
from const import TEMP_DIR, USER_HOME, WINDOWS, MACOS, LINUX, GRAMPS_UUID
from gen.ggettext import sgettext as _
#-------------------------------------------------------------------------
#
# Constants from config .ini keys
#
#-------------------------------------------------------------------------
# cache values; use refresh_constants() if they change
try:
import config
_MAX_AGE_PROB_ALIVE = config.get('behavior.max-age-prob-alive')
_MAX_SIB_AGE_DIFF = config.get('behavior.max-sib-age-diff')
_MIN_GENERATION_YEARS = config.get('behavior.min-generation-years')
_AVG_GENERATION_GAP = config.get('behavior.avg-generation-gap')
except ImportError:
# Utils used as module not part of GRAMPS
_MAX_AGE_PROB_ALIVE = 110
_MAX_SIB_AGE_DIFF = 20
_MIN_GENERATION_YEARS = 13
_AVG_GENERATION_GAP = 20
#-------------------------------------------------------------------------
#
# Integer to String mappings for constants
#
#-------------------------------------------------------------------------
gender = {
gen.lib.Person.MALE : _("male"),
gen.lib.Person.FEMALE : _("female"),
gen.lib.Person.UNKNOWN : _("unknown"),
}
def format_gender( type):
return gender.get(type[0], _("Invalid"))
confidence = {
gen.lib.SourceRef.CONF_VERY_HIGH : _("Very High"),
gen.lib.SourceRef.CONF_HIGH : _("High"),
gen.lib.SourceRef.CONF_NORMAL : _("Normal"),
gen.lib.SourceRef.CONF_LOW : _("Low"),
gen.lib.SourceRef.CONF_VERY_LOW : _("Very Low"),
}
family_rel_descriptions = {
gen.lib.FamilyRelType.MARRIED : _("A legal or common-law relationship "
"between a husband and wife"),
gen.lib.FamilyRelType.UNMARRIED : _("No legal or common-law relationship "
"between man and woman"),
gen.lib.FamilyRelType.CIVIL_UNION : _("An established relationship between "
"members of the same sex"),
gen.lib.FamilyRelType.UNKNOWN : _("Unknown relationship between a man "
"and woman"),
gen.lib.FamilyRelType.CUSTOM : _("An unspecified relationship between "
"a man and woman"),
}
#-------------------------------------------------------------------------
#
# modified flag
#
#-------------------------------------------------------------------------
_history_brokenFlag = 0
def history_broken():
global _history_brokenFlag
_history_brokenFlag = 1
data_recover_msg = _('The data can only be recovered by Undo operation '
'or by quitting with abandoning changes.')
def fix_encoding(value):
if not isinstance(value, unicode):
try:
return unicode(value)
except:
try:
codeset = locale.getpreferredencoding()
except:
codeset = "UTF-8"
return unicode(value, codeset)
else:
return value
def xml_lang():
loc = locale.getlocale()
if loc[0] is None:
return ""
else:
return loc[0].replace('_', '-')
#-------------------------------------------------------------------------
#
# force_unicode
#
#-------------------------------------------------------------------------
def force_unicode(n):
if not isinstance(n, unicode):
return (unicode(n).lower(), unicode(n))
else:
return (n.lower(), n)
#-------------------------------------------------------------------------
#
# Clears the modified flag. Should be called after data is saved.
#
#-------------------------------------------------------------------------
def clearHistory_broken():
global _history_brokenFlag
_history_brokenFlag = 0
def wasHistory_broken():
return _history_brokenFlag
#-------------------------------------------------------------------------
#
# Short hand function to return either the person's name, or an empty
# string if the person is None
#
#-------------------------------------------------------------------------
def family_name(family, db, noname=_("unknown")):
"""Builds a name for the family from the parents names"""
father_handle = family.get_father_handle()
mother_handle = family.get_mother_handle()
father = db.get_person_from_handle(father_handle)
mother = db.get_person_from_handle(mother_handle)
if father and mother:
fname = name_displayer.display(father)
mname = name_displayer.display(mother)
name = _("%(father)s and %(mother)s") % {
"father" : fname,
"mother" : mname}
elif father:
name = name_displayer.display(father)
elif mother:
name = name_displayer.display(mother)
else:
name = noname
return name
def family_upper_name(family, db):
"""Builds a name for the family from the parents names"""
father_handle = family.get_father_handle()
mother_handle = family.get_mother_handle()
father = db.get_person_from_handle(father_handle)
mother = db.get_person_from_handle(mother_handle)
if father and mother:
fname = father.get_primary_name().get_upper_name()
mname = mother.get_primary_name().get_upper_name()
name = _("%(father)s and %(mother)s") % {
'father' : fname,
'mother' : mname
}
elif father:
name = father.get_primary_name().get_upper_name()
else:
name = mother.get_primary_name().get_upper_name()
return name
#-------------------------------------------------------------------------
#
# Platform determination functions
#
#-------------------------------------------------------------------------
def lin():
"""
Return True if a linux system
Note: Normally do as linux in else statement of a check !
"""
if platform.system() in LINUX:
return True
return False
def mac():
"""
Return True if a Macintosh system
"""
if platform.system() in MACOS:
return True
return False
def win():
"""
Return True if a windows system
"""
if platform.system() in WINDOWS:
return True
return False
#-------------------------------------------------------------------------
#
# String Encoding functions
#
#-------------------------------------------------------------------------
def encodingdefs():
"""
4 functions are defined to obtain a byte string that can be used as
sort key and is locale aware. Do not print the sortkey, it is a sortable
string, but is not a human readable correct string!
When gtk is defined, one can avoid some function calls as then the default
python encoding is not ascii but utf-8, so use the gtk functions in those
cases.
conv_utf8_tosrtkey: convert a utf8 encoded string to sortkey usable string
conv_unicode_tosrtkey: convert a unicode object to sortkey usable string
conv_utf8_tosrtkey_ongtk: convert a utf8 encoded string to sortkey usable
string when gtk is loaded or utf-8 is default python encoding
conv_unicode_tosrtkey_ongtk: convert a unicode object to sortkey usable
string when gtk is loaded or utf-8 is default python encoding
"""
pass
if platform.system() in WINDOWS:
# python encoding is ascii, but C functions need to recieve the
# windows codeset, so convert over to it
conv_utf8_tosrtkey = lambda x: locale.strxfrm(x.decode("utf-8").encode(
codeset))
conv_unicode_tosrtkey = lambda x: locale.strxfrm(x.encode(codeset))
#when gtk is imported the python defaultencoding is utf-8,
#so no need to specify it
conv_utf8_tosrtkey_ongtk = lambda x: locale.strxfrm(unicode(x).encode(
codeset))
conv_unicode_tosrtkey_ongtk = lambda x: locale.strxfrm(x.encode(codeset))
else:
# on unix C functions need to recieve utf-8. Default conversion would
# use ascii, so it is needed to be explicit about the resulting encoding
conv_utf8_tosrtkey = lambda x: locale.strxfrm(x)
conv_unicode_tosrtkey = lambda x: locale.strxfrm(x.encode("utf-8"))
# when gtk loaded, default encoding (sys.getdefaultencoding ) is utf-8,
# so default conversion happens with utf-8
conv_utf8_tosrtkey_ongtk = lambda x: locale.strxfrm(x)
conv_unicode_tosrtkey_ongtk = lambda x: locale.strxfrm(x)
#-------------------------------------------------------------------------
#
#
#
#-------------------------------------------------------------------------
def find_file( filename):
# try the filename we got
try:
fname = filename
if os.path.isfile( filename):
return( filename)
except:
pass
# Build list of alternate encodings
encodings = set()
for enc in [sys.getfilesystemencoding, locale.getpreferredencoding]:
try:
encodings.add(enc)
except:
pass
encodings.add('UTF-8')
encodings.add('ISO-8859-1')
for enc in encodings:
try:
fname = filename.encode(enc)
if os.path.isfile( fname):
return fname
except:
pass
# not found
return ''
def find_folder( filename):
# try the filename we got
try:
fname = filename
if os.path.isdir( filename):
return( filename)
except:
pass
# Build list of elternate encodings
try:
encodings = [sys.getfilesystemencoding(),
locale.getpreferredencoding(),
'UTF-8', 'ISO-8859-1']
except:
encodings = [sys.getfilesystemencoding(), 'UTF-8', 'ISO-8859-1']
encodings = list(set(encodings))
for enc in encodings:
try:
fname = filename.encode(enc)
if os.path.isdir( fname):
return fname
except:
pass
# not found
return ''
def get_unicode_path(path):
"""
Return the Unicode version of a path string.
:type path: str
:param path: The path to be converted to Unicode
:rtype: unicode
:returns: The Unicode version of path.
"""
if os.sys.platform == "win32":
return unicode(path)
else:
return unicode(path,sys.getfilesystemencoding())
#-------------------------------------------------------------------------
#
# Iterate over ancestors.
#
#-------------------------------------------------------------------------
def for_each_ancestor(db, start, func, data):
"""
Recursively iterate (breadth-first) over ancestors of
people listed in start.
Call func(data, pid) for the Id of each person encountered.
Exit and return 1, as soon as func returns true.
Return 0 otherwise.
"""
todo = start
done_ids = set()
while len(todo):
p_handle = todo.pop()
p = db.get_person_from_handle(p_handle)
# Don't process the same handle twice. This can happen
# if there is a cycle in the database, or if the
# initial list contains X and some of X's ancestors.
if p_handle in done_ids:
continue
done_ids.add(p_handle)
if func(data, p_handle):
return 1
for fam_handle in p.get_parent_family_handle_list():
fam = db.get_family_from_handle(fam_handle)
if fam:
f_handle = fam.get_father_handle()
m_handle = fam.get_mother_handle()
if f_handle: todo.append(f_handle)
if m_handle: todo.append(m_handle)
return 0
def title(n):
return '%s' % n
def set_title_label(xmlobj, t):
title_label = xmlobj.get_widget('title')
title_label.set_text('%s' % t)
title_label.set_use_markup(True)
from warnings import warn
def set_titles(window, title, t, msg=None):
warn('The Utils.set_titles is deprecated. Use ManagedWindow methods')
def search_for(name):
if name.startswith( '"' ):
name = name.split('"')[1]
else:
name = name.split()[0]
if os.sys.platform == "win32":
for i in os.environ['PATH'].split(';'):
fname = os.path.join(i, name)
if os.access(fname, os.X_OK) and not os.path.isdir(fname):
return 1
else:
for i in os.environ['PATH'].split(':'):
fname = os.path.join(i, name)
if os.access(fname, os.X_OK) and not os.path.isdir(fname):
return 1
return 0
#-------------------------------------------------------------------------
#
# create_id
#
#-------------------------------------------------------------------------
rand = random.Random(time.time())
def create_id():
return "%08x%08x" % ( int(time.time()*10000),
rand.randint(0, sys.maxint))
def create_uid(self, handle=None):
if handle:
uid = uuid.uuid5(GRAMPS_UUID, handle)
else:
uid = uuid.uuid4()
return uid.hex.upper()
class ProbablyAlive(object):
"""
An object to hold the parameters for considering someone alive.
"""
def __init__(self,
db,
max_sib_age_diff=None,
max_age_prob_alive=None,
avg_generation_gap=None):
self.db = db
if max_sib_age_diff is None:
max_sib_age_diff = _MAX_SIB_AGE_DIFF
if max_age_prob_alive is None:
max_age_prob_alive = _MAX_AGE_PROB_ALIVE
if avg_generation_gap is None:
avg_generation_gap = _AVG_GENERATION_GAP
self.MAX_SIB_AGE_DIFF = max_sib_age_diff
self.MAX_AGE_PROB_ALIVE = max_age_prob_alive
self.AVG_GENERATION_GAP = avg_generation_gap
def probably_alive_range(self, person, is_spouse=False):
if person is None:
return (None, None, "", None)
birth_ref = person.get_birth_ref()
death_ref = person.get_death_ref()
death_date = None
birth_date = None
explain = ""
# If the recorded death year is before current year then
# things are simple.
if death_ref and death_ref.get_role().is_primary():
death = self.db.get_event_from_handle(death_ref.ref)
if death and death.get_date_object().get_start_date() != gen.lib.Date.EMPTY:
death_date = death.get_date_object()
# Look for Cause Of Death, Burial or Cremation events.
# These are fairly good indications that someone's not alive.
if not death_date:
for ev_ref in person.get_primary_event_ref_list():
ev = self.db.get_event_from_handle(ev_ref.ref)
if ev and ev.type.is_death_fallback():
death_date = ev.get_date_object()
explain = _("death-related evidence")
# If they were born within X years before current year then
# assume they are alive (we already know they are not dead).
if not birth_date:
if birth_ref and birth_ref.get_role().is_primary():
birth = self.db.get_event_from_handle(birth_ref.ref)
if birth and birth.get_date_object().get_start_date() != gen.lib.Date.EMPTY:
birth_date = birth.get_date_object()
# Look for Baptism, etc events.
# These are fairly good indications that someone's birth.
if not birth_date:
for ev_ref in person.get_primary_event_ref_list():
ev = self.db.get_event_from_handle(ev_ref.ref)
if ev and ev.type.is_birth_fallback():
birth_date = ev.get_date_object()
explain = _("birth-related evidence")
if not birth_date and death_date:
# person died more than MAX after current year
birth_date = death_date.copy_offset_ymd(year=-self.MAX_AGE_PROB_ALIVE)
explain = _("death date")
if not death_date and birth_date:
# person died more than MAX after current year
death_date = birth_date.copy_offset_ymd(year=self.MAX_AGE_PROB_ALIVE)
explain = _("birth date")
if death_date and birth_date:
return (birth_date, death_date, explain, "") # direct self evidence
# Neither birth nor death events are available. Try looking
# at siblings. If a sibling was born more than X years past,
# or more than Z future, then probably this person is
# not alive. If the sibling died more than X years
# past, or more than X years future, then probably not alive.
family_list = person.get_parent_family_handle_list()
for family_handle in family_list:
family = self.db.get_family_from_handle(family_handle)
for child_ref in family.get_child_ref_list():
child_handle = child_ref.ref
child = self.db.get_person_from_handle(child_handle)
# Go through once looking for direct evidence:
for ev_ref in child.get_primary_event_ref_list():
ev = self.db.get_event_from_handle(ev_ref.ref)
if ev and ev.type.is_birth():
dobj = ev.get_date_object()
if dobj.get_start_date() != gen.lib.Date.EMPTY:
# if sibling birth date too far away, then not alive:
year = dobj.get_year()
if year != 0:
# sibling birth date
return (gen.lib.Date().copy_ymd(year - self.MAX_SIB_AGE_DIFF),
gen.lib.Date().copy_ymd(year + self.MAX_SIB_AGE_DIFF + self.MAX_AGE_PROB_ALIVE),
_("sibling birth date"),
child)
elif ev and ev.type.is_death():
dobj = ev.get_date_object()
if dobj.get_start_date() != gen.lib.Date.EMPTY:
# if sibling death date too far away, then not alive:
year = dobj.get_year()
if year != 0:
# sibling death date
return (gen.lib.Date().copy_ymd(year - self.MAX_SIB_AGE_DIFF - self.MAX_AGE_PROB_ALIVE),
gen.lib.Date().copy_ymd(year + self.MAX_SIB_AGE_DIFF),
_("sibling death date"),
child)
# Go through again looking for fallback:
for ev_ref in child.get_primary_event_ref_list():
ev = self.db.get_event_from_handle(ev_ref.ref)
if ev and ev.type.is_birth_fallback():
dobj = ev.get_date_object()
if dobj.get_start_date() != gen.lib.Date.EMPTY:
# if sibling birth date too far away, then not alive:
year = dobj.get_year()
if year != 0:
# sibling birth date
return (gen.lib.Date().copy_ymd(year - self.MAX_SIB_AGE_DIFF),
gen.lib.Date().copy_ymd(year + self.MAX_SIB_AGE_DIFF + self.MAX_AGE_PROB_ALIVE),
_("sibling birth-related date"),
child)
elif ev and ev.type.is_death_fallback():
dobj = ev.get_date_object()
if dobj.get_start_date() != gen.lib.Date.EMPTY:
# if sibling death date too far away, then not alive:
year = dobj.get_year()
if year != 0:
# sibling death date
return (gen.lib.Date().copy_ymd(year - self.MAX_SIB_AGE_DIFF - self.MAX_AGE_PROB_ALIVE),
gen.lib.Date().copy_ymd(year + self.MAX_SIB_AGE_DIFF),
_("sibling death-related date"),
child)
if not is_spouse: # if you are not in recursion, let's recurse:
for family_handle in person.get_family_handle_list():
family = self.db.get_family_from_handle(family_handle)
if family:
mother_handle = family.get_mother_handle()
father_handle = family.get_father_handle()
if mother_handle == person.handle and father_handle:
father = self.db.get_person_from_handle(father_handle)
date1, date2, explain, other = self.probably_alive_range(father, is_spouse=True)
if date1 and date2:
return date1, date2, _("a spouse, ") + explain, other
elif father_handle == person.handle and mother_handle:
mother = self.db.get_person_from_handle(mother_handle)
date1, date2, explain, other = self.probably_alive_range(mother, is_spouse=True)
if date1 and date2:
return date1, date2, _("a spouse, ") + explain, other
# Try looking for descendants that were born more than a lifespan
# ago.
def descendants_too_old (person, years):
for family_handle in person.get_family_handle_list():
family = self.db.get_family_from_handle(family_handle)
for child_ref in family.get_child_ref_list():
child_handle = child_ref.ref
child = self.db.get_person_from_handle(child_handle)
child_birth_ref = child.get_birth_ref()
if child_birth_ref:
child_birth = self.db.get_event_from_handle(child_birth_ref.ref)
dobj = child_birth.get_date_object()
if dobj.get_start_date() != gen.lib.Date.EMPTY:
d = gen.lib.Date(dobj)
val = d.get_start_date()
val = d.get_year() - years
d.set_year(val)
return (d, d.copy_offset_ymd(self.MAX_AGE_PROB_ALIVE),
_("descendent birth date"),
child)
child_death_ref = child.get_death_ref()
if child_death_ref:
child_death = self.db.get_event_from_handle(child_death_ref.ref)
dobj = child_death.get_date_object()
if dobj.get_start_date() != gen.lib.Date.EMPTY:
return (dobj.copy_offset_ymd(- self.AVG_GENERATION_GAP),
dobj.copy_offset_ymd(- self.AVG_GENERATION_GAP + self.MAX_AGE_PROB_ALIVE),
_("descendent death date"),
child)
date1, date2, explain, other = descendants_too_old (child, years + self.AVG_GENERATION_GAP)
if date1 and date2:
return date1, date2, explain, other
# Check fallback data:
for ev_ref in child.get_primary_event_ref_list():
ev = self.db.get_event_from_handle(ev_ref.ref)
if ev and ev.type.is_birth_fallback():
dobj = ev.get_date_object()
if dobj.get_start_date() != gen.lib.Date.EMPTY:
d = gen.lib.Date(dobj)
val = d.get_start_date()
val = d.get_year() - years
d.set_year(val)
return (d, d.copy_offset_ymd(self.MAX_AGE_PROB_ALIVE),
_("descendent birth-related date"),
child)
elif ev and ev.type.is_death_fallback():
dobj = ev.get_date_object()
if dobj.get_start_date() != gen.lib.Date.EMPTY:
return (dobj.copy_offset_ymd(- self.AVG_GENERATION_GAP),
dobj.copy_offset_ymd(- self.AVG_GENERATION_GAP + self.MAX_AGE_PROB_ALIVE),
_("descendent death-related date"),
child)
return (None, None, "", None)
# If there are descendants that are too old for the person to have
# been alive in the current year then they must be dead.
date1, date2, explain, other = None, None, "", None
try:
date1, date2, explain, other = descendants_too_old(person, self.AVG_GENERATION_GAP)
except RuntimeError:
raise Errors.DatabaseError(
_("Database error: %s is defined as his or her own ancestor") %
name_displayer.display(person))
if date1 and date2:
return (date1, date2, explain, other)
def ancestors_too_old(person, year):
family_handle = person.get_main_parents_family_handle()
if family_handle:
family = self.db.get_family_from_handle(family_handle)
father_handle = family.get_father_handle()
if father_handle:
father = self.db.get_person_from_handle(father_handle)
father_birth_ref = father.get_birth_ref()
if father_birth_ref and father_birth_ref.get_role().is_primary():
father_birth = self.db.get_event_from_handle(
father_birth_ref.ref)
dobj = father_birth.get_date_object()
if dobj.get_start_date() != gen.lib.Date.EMPTY:
return (dobj.copy_offset_ymd(- year),
dobj.copy_offset_ymd(- year + self.MAX_AGE_PROB_ALIVE),
_("ancestor birth date"),
father)
father_death_ref = father.get_death_ref()
if father_death_ref and father_death_ref.get_role().is_primary():
father_death = self.db.get_event_from_handle(
father_death_ref.ref)
dobj = father_death.get_date_object()
if dobj.get_start_date() != gen.lib.Date.EMPTY:
return (dobj.copy_offset_ymd(- year - self.MAX_AGE_PROB_ALIVE),
dobj.copy_offset_ymd(- year - self.MAX_AGE_PROB_ALIVE + self.MAX_AGE_PROB_ALIVE),
_("ancestor death date"),
father)
# Check fallback data:
for ev_ref in father.get_primary_event_ref_list():
ev = self.db.get_event_from_handle(ev_ref.ref)
if ev and ev.type.is_birth_fallback():
dobj = ev.get_date_object()
if dobj.get_start_date() != gen.lib.Date.EMPTY:
return (dobj.copy_offset_ymd(- year),
dobj.copy_offset_ymd(- year + self.MAX_AGE_PROB_ALIVE),
_("ancestor birth-related date"),
father)
elif ev and ev.type.is_death_fallback():
dobj = ev.get_date_object()
if dobj.get_start_date() != gen.lib.Date.EMPTY:
return (dobj.copy_offset_ymd(- year - self.MAX_AGE_PROB_ALIVE),
dobj.copy_offset_ymd(- year - self.MAX_AGE_PROB_ALIVE + self.MAX_AGE_PROB_ALIVE),
_("ancestor death-related date"),
father)
date1, date2, explain, other = ancestors_too_old (father, year - self.AVG_GENERATION_GAP)
if date1 and date2:
return date1, date2, explain, other
mother_handle = family.get_mother_handle()
if mother_handle:
mother = self.db.get_person_from_handle(mother_handle)
mother_birth_ref = mother.get_birth_ref()
if mother_birth_ref and mother_birth_ref.get_role().is_primary():
mother_birth = self.db.get_event_from_handle(mother_birth_ref.ref)
dobj = mother_birth.get_date_object()
if dobj.get_start_date() != gen.lib.Date.EMPTY:
return (dobj.copy_offset_ymd(- year),
dobj.copy_offset_ymd(- year + self.MAX_AGE_PROB_ALIVE),
_("ancestor birth date"),
mother)
mother_death_ref = mother.get_death_ref()
if mother_death_ref and mother_death_ref.get_role().is_primary():
mother_death = self.db.get_event_from_handle(
mother_death_ref.ref)
dobj = mother_death.get_date_object()
if dobj.get_start_date() != gen.lib.Date.EMPTY:
return (dobj.copy_offset_ymd(- year - self.MAX_AGE_PROB_ALIVE),
dobj.copy_offset_ymd(- year - self.MAX_AGE_PROB_ALIVE + self.MAX_AGE_PROB_ALIVE),
_("ancestor death date"),
mother)
# Check fallback data:
for ev_ref in mother.get_primary_event_ref_list():
ev = self.db.get_event_from_handle(ev_ref.ref)
if ev and ev.type.is_birth_fallback():
dobj = ev.get_date_object()
if dobj.get_start_date() != gen.lib.Date.EMPTY:
return (dobj.copy_offset_ymd(- year),
dobj.copy_offset_ymd(- year + self.MAX_AGE_PROB_ALIVE),
_("ancestor birth-related date"),
mother)
elif ev and ev.type.is_death_fallback():
dobj = ev.get_date_object()
if dobj.get_start_date() != gen.lib.Date.EMPTY:
return (dobj.copy_offset_ymd(- year - self.MAX_AGE_PROB_ALIVE),
dobj.copy_offset_ymd(- year - self.MAX_AGE_PROB_ALIVE + self.MAX_AGE_PROB_ALIVE),
_("ancestor death-related date"),
mother)
date1, date2, explain, other = ancestors_too_old (mother, year - self.AVG_GENERATION_GAP)
if date1 and date2:
return (date1, date2, explain, other)
return (None, None, "", None)
# If there are ancestors that would be too old in the current year
# then assume our person must be dead too.
date1, date2, explain, other = ancestors_too_old (person, - self.AVG_GENERATION_GAP)
if date1 and date2:
return (date1, date2, explain, other)
# If we can't find any reason to believe that they are dead we
# must assume they are alive.
return (None, None, "", None)
#-------------------------------------------------------------------------
#
# probably_alive
#
#-------------------------------------------------------------------------
def probably_alive(person, db,
current_date=None,
limit=0,
max_sib_age_diff=None,
max_age_prob_alive=None,
avg_generation_gap=None):
"""
Return true if the person may be alive on current_date.
This works by a process of emlimination. If we can't find a good
reason to believe that someone is dead then we assume they must
be alive.
:param current_date: a date object that is not estimated or modified
(defaults to today)
:param limit: number of years to check beyond death_date
:param max_sib_age_diff: maximum sibling age difference, in years
:param max_age_prob_alive: maximum age of a person, in years
:param avg_generation_gap: average generation gap, in years
"""
pb = ProbablyAlive(db, max_sib_age_diff,
max_age_prob_alive, avg_generation_gap)
birth, death, explain, relative = pb.probably_alive_range(person, db)
if death is None: # no evidence... can't say if alive/dead
return True
# must have est dates
if current_date: # date in which to consider alive
# SPECIAL CASE: Today:
if current_date.match(gen.lib.date.Today(), "=="):
if person.get_death_ref():
return False
if limit:
death += limit # add these years to death
if death.match(gen.lib.date.Today(), ">"):
return True
result = (current_date.match(birth, ">=") and
current_date.match(death, "<="))
return result
# else, they have a est death date, and no current_date give, thus dead
return False
def probably_alive_range(person, db,
max_sib_age_diff=None,
max_age_prob_alive=None,
avg_generation_gap=None):
"""
Computes estimated birth and death dates.
Returns: (birth_date, death_date, explain_text, related_person)
"""
pb = ProbablyAlive(db, max_sib_age_diff,
max_age_prob_alive, avg_generation_gap)
return pb.probably_alive_range(person, db)
#-------------------------------------------------------------------------
#
# Other util functions
#
#-------------------------------------------------------------------------
def get_referents(handle, db, primary_objects):
""" Find objects that refer to an object.
This function is the base for other get_