CODEWITHSUNDEEP
ruby-on-railsdatetimeactiverecordtimeactivesupport
ecki
ecki

Reputation: 790

How to compare unix timestamp to ActiveSupport::TimeWithZone?

I have a unix timestamp integer of 1550814673 and I want to compare it to:

Record.first.created_at
=> Fri, 22 Feb 2019 05:51:13 UTC +00:00
Record.first.created_at.class
=> ActiveSupport::TimeWithZone

I've tried turning the integer into datetime with this:

Time.at(1550814673).utc.to_datetime
=> Fri, 22 Feb 2019 05:51:13 +0000

But that is not quite the same and will not compare truthfully with a == operator

Upvotes: 1

Views: 1231

Answers (3)

Danodemo
Danodemo

Reputation: 59

Use DateTime instead!

DateTime.strptime("1318996912",'%s')

=> Wed, 19 Oct 2011 04:01:52 +0000

Should return something easy to digest, and you can then easily do this:

DateTime.parse("#{Record.first.created_at}") == DateTime.strptime("1318996912",'%s')

=> true

DateTime.parse will automatically convert the TimeWithZone string to a DateTime object for easy comparison.

Upvotes: 0

max
max

Reputation: 102222

You can create a new ActiveSupport::TimeWithZone instance from a timestamp with Time.zone.at:

irb(main):015:0> Time.zone.at(0)
=> Thu, 01 Jan 1970 00:00:00 UTC +00:00
irb(main):019:0> Time.zone.at(0).class
=> ActiveSupport::TimeWithZone

This also goes for the other factory methods like now, local and parse.

You can also convert a Time or DateTime instance with #in_time_zone.

irb(main):014:0> Time.at(0).in_time_zone
=> Thu, 01 Jan 1970 00:00:00 UTC +00:00

Upvotes: 4

Philippe B.
Philippe B.

Reputation: 364

You can try to use to_i on a time, and it should give you something that you could use

date = Date.today
=> Tue, 14 May 2019
date.to_time.to_i
=> 1557784800
Time.at(1557784800)
=> 2019-05-14 00:00:00 +0200

Upvotes: 3

Related Questions