From d1d08a15522d279422aeae04f45798dcba2ddc00 Mon Sep 17 00:00:00 2001
From: Nick Hall <nick-h@gramps-project.org>
Date: Fri, 9 Dec 2016 19:22:46 +0000
Subject: [PATCH] 9799: Use latest valid date rather than today

This is useful for historic places when an event date is not
available.
---
 gramps/gen/utils/location.py | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/gramps/gen/utils/location.py b/gramps/gen/utils/location.py
index d5d016e66..cd4feaa4b 100644
--- a/gramps/gen/utils/location.py
+++ b/gramps/gen/utils/location.py
@@ -21,7 +21,7 @@
 """
 Location utility functions
 """
-from ..lib.date import Today
+from ..lib.date import Date, Today
 
 #-------------------------------------------------------------------------
 #
@@ -33,7 +33,7 @@ def get_location_list(db, place, date=None, lang=''):
     Return a list of place names for display.
     """
     if date is None:
-        date = Today()
+        date = __get_latest_date(place)
     visited = [place.handle]
     lines = [(__get_name(place, date, lang), place.get_type())]
     while True:
@@ -63,6 +63,22 @@ def __get_name(place, date, lang):
                 endonym = place_name.get_value()
     return endonym if endonym is not None else '?'
 
+def __get_latest_date(place):
+    latest_date = None
+    for place_name in place.get_all_names():
+        date = place_name.get_date_object()
+        if date.is_empty() or date.modifier == Date.MOD_AFTER:
+            return Today()
+        else:
+            if date.is_compound():
+                date1, date2 = date.get_start_stop_range()
+                date = Date(*date2)
+            if date.modifier == Date.MOD_BEFORE:
+                date = date - 1
+            if latest_date is None or date > latest_date:
+                latest_date = date
+    return latest_date
+
 #-------------------------------------------------------------------------
 #
 # get_main_location