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Time - TimeWithZone fails (sometimes)
Reported by Sai Emrys | October 22nd, 2009 @ 07:28 AM
38 :> x = Time.zone.now
=> Thu, 22 Oct 2009 06:23:32 UTC 00:00
39 :> y = Time.now
=> Wed Oct 21 23:23:35 -0700 2009
40 :> x.class
=> ActiveSupport::TimeWithZone
41 :> y.class
=> Time
42 :> x - y
=> -2.95153093338013
43 :> y - x
=> 2.951531
44 :> x = Comment.last.updated_at
Comment Load (0.000331) (1 Row) SELECT * FROM `comments` WHERE (comments.deleted_at IS NULL OR comments.deleted_at > '2009-10-21 23:25:01') ORDER BY comments.id DESC LIMIT 1
=> Wed, 21 Oct 2009 23:07:29 UTC 00:00
45 :> x.class
=> ActiveSupport::TimeWithZone
46 :> x - y
=> -26166.2522480488
47 :> y - x
=> Wed Dec 31 23:16:06 -0800 1969
in environment:
config.time_zone = 'UTC'
config.active_record.default_timezone = 'Pacific Time (US & Canada)'
This is in Rails 2.3.4.
WTF?
Comments and changes to this ticket
-
Sai Emrys October 22nd, 2009 @ 07:35 AM
Removing the config.active_record.default_timezone fixes this. (I added it to try to help with #1339.)
Nevertheless, it's a weird bug.
-
Geoff Buesing October 27th, 2009 @ 02:16 AM
- State changed from “new” to “invalid”
The only valid settings for config.active_record.default_timezone are :utc and :local.
I've seen others make this same error -- they assume default_timezone can be set to any of the ActiveSupport timezone names. Might make sense to raise an exception if someone tries to do that, to help with the confusion.
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Geoff Buesing