From 607a6c7a9a6fb3d8bd7d08d0307018b626105d83 Mon Sep 17 00:00:00 2001 From: Thomas Balthazar Date: Sat, 1 Oct 2016 13:26:15 +0200 Subject: Fix `ActiveSupport::TimeWithZone#localtime` Previously memoization in `localtime` wasn't taking the `utc_offset` parameter into account when returning a cached value. It now caches the computed value depending on the `utc_offset` parameter, e.g: Time.zone = "US/Eastern" t = Time.zone.local(2016,5,2,11) # => Mon, 02 May 2016 11:00:00 EDT -04:00 t.localtime(-7200) # => 2016-05-02 13:00:00 -0200 t.localtime(-3600) # => 2016-05-02 14:00:00 -0100 --- activesupport/CHANGELOG.md | 22 ++++++++++++++++++++++ activesupport/lib/active_support/time_with_zone.rb | 3 ++- activesupport/test/core_ext/time_with_zone_test.rb | 6 ++++++ 3 files changed, 30 insertions(+), 1 deletion(-) diff --git a/activesupport/CHANGELOG.md b/activesupport/CHANGELOG.md index f840783059..499310975e 100644 --- a/activesupport/CHANGELOG.md +++ b/activesupport/CHANGELOG.md @@ -1,3 +1,25 @@ +* Fix `ActiveSupport::TimeWithZone#localtime` when called with different + `utc_offset` values. + + Previously memoization in `localtime` wasn't taking the `utc_offset` + parameter into account when returning a cached value. It now caches the + computed value depending on the `utc_offset` parameter, e.g: + + Time.zone = "US/Eastern" + + t = Time.zone.local(2016,5,2,11) + # => Mon, 02 May 2016 11:00:00 EDT -04:00 + + t.localtime(-7200) + # => 2016-05-02 13:00:00 -0200 + + t.localtime(-3600) + # => 2016-05-02 14:00:00 -0100 + + Fixes #26644. + + *Thomas Balthazar* + * Fix `ActiveSupport::TimeWithZone#in` across DST boundaries. Previously calls to `in` were being sent to the non-DST aware diff --git a/activesupport/lib/active_support/time_with_zone.rb b/activesupport/lib/active_support/time_with_zone.rb index c35588fbae..bee481e5f5 100644 --- a/activesupport/lib/active_support/time_with_zone.rb +++ b/activesupport/lib/active_support/time_with_zone.rb @@ -80,7 +80,8 @@ module ActiveSupport # Returns a Time instance of the simultaneous time in the system timezone. def localtime(utc_offset = nil) - @localtime ||= utc.getlocal(utc_offset) + @localtime ||= {} + @localtime[utc_offset] ||= utc.getlocal(utc_offset) end alias_method :getlocal, :localtime diff --git a/activesupport/test/core_ext/time_with_zone_test.rb b/activesupport/test/core_ext/time_with_zone_test.rb index e35aa6e154..5c940da1e3 100644 --- a/activesupport/test/core_ext/time_with_zone_test.rb +++ b/activesupport/test/core_ext/time_with_zone_test.rb @@ -54,6 +54,12 @@ class TimeWithZoneTest < ActiveSupport::TestCase assert_instance_of Time, @dt_twz.localtime end + def test_localtime_with_offset + assert_equal 0, @twz.localtime.gmt_offset + assert_equal (-3600), @twz.localtime(-3600).gmt_offset + assert_equal (-7200), @twz.localtime(-7200).gmt_offset + end + def test_utc? assert_equal false, @twz.utc? -- cgit v1.2.3