# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1445290717 -7200
# Node ID d772a27098e7d3be5ef94775691f85825c2a2bfe
# Parent  6653300fb8e6c8ab3ea3cc05e3deb20e12db255e
Switched to using period objects when testing RDATE and EXDATE equivalence.

diff -r 6653300fb8e6 -r d772a27098e7 imiptools/data.py
--- a/imiptools/data.py	Mon Oct 19 18:19:50 2015 +0200
+++ b/imiptools/data.py	Mon Oct 19 23:38:37 2015 +0200
@@ -122,10 +122,6 @@
     def get_utc_datetime(self, name, date_tzid=None):
         return get_utc_datetime(self.details, name, date_tzid)
 
-    def get_date_values(self, name, tzid=None):
-        items = get_date_value_items(self.details, name, tzid)
-        return items and [value for value, attr in items]
-
     def get_date_value_items(self, name, tzid=None):
         return get_date_value_items(self.details, name, tzid)
 
@@ -409,7 +405,7 @@
         previous RDATE properties and ignoring any RRULE properties.
         """
 
-        old_values = set(self.get_date_values("RDATE") or [])
+        old_values = set(self.get_date_value_item_periods("RDATE") or [])
         new_rdates = []
 
         if self.has_key("RDATE"):
@@ -426,7 +422,7 @@
         if new_rdates:
             self["RDATE"] = new_rdates
 
-        return main_changed or old_values != set(self.get_date_values("RDATE") or [])
+        return main_changed or old_values != set(self.get_date_value_item_periods("RDATE") or [])
 
     def set_rule(self, rule):
 
@@ -451,10 +447,10 @@
         'exceptions' must be a collection of items.
         """
 
-        old_exdates = set(self.get_date_values("EXDATE") or [])
+        old_exdates = set(self.get_date_value_item_periods("EXDATE") or [])
         if exceptions:
             self["EXDATE"] = exceptions
-            return old_exdates != set(self.get_date_values("EXDATE") or [])
+            return old_exdates != set(self.get_date_value_item_periods("EXDATE") or [])
         elif old_exdates:
             del self["EXDATE"]
             return True