From ce73055139013d44b36d0c2cd3ab42146c0b4353 Mon Sep 17 00:00:00 2001
From: Olek Janiszewski <olek.janiszewski@gmail.com>
Date: Tue, 16 Oct 2012 12:05:24 +0200
Subject: Add #seconds_until_end_of_day to DateTime and Time

---
 .../lib/active_support/core_ext/date_time/calculations.rb        | 9 +++++++++
 activesupport/lib/active_support/core_ext/time/calculations.rb   | 9 +++++++++
 2 files changed, 18 insertions(+)

(limited to 'activesupport/lib/active_support')

diff --git a/activesupport/lib/active_support/core_ext/date_time/calculations.rb b/activesupport/lib/active_support/core_ext/date_time/calculations.rb
index 0c6437b02b..f77d444479 100644
--- a/activesupport/lib/active_support/core_ext/date_time/calculations.rb
+++ b/activesupport/lib/active_support/core_ext/date_time/calculations.rb
@@ -32,6 +32,15 @@ class DateTime
     sec + (min * 60) + (hour * 3600)
   end
 
+  # Returns the number of seconds until 23:59:59.
+  #
+  #   DateTime.new(2012, 8, 29,  0,  0,  0).seconds_until_end_of_day # => 86399
+  #   DateTime.new(2012, 8, 29, 12, 34, 56).seconds_until_end_of_day # => 41103
+  #   DateTime.new(2012, 8, 29, 23, 59, 59).seconds_until_end_of_day # => 0
+  def seconds_until_end_of_day
+    end_of_day.to_i - to_i
+  end
+
   # Returns a new DateTime where one or more of the elements have been changed
   # according to the +options+ parameter. The time options (<tt>:hour</tt>,
   # <tt>:minute</tt>, <tt>:sec</tt>) reset cascadingly, so if only the hour is
diff --git a/activesupport/lib/active_support/core_ext/time/calculations.rb b/activesupport/lib/active_support/core_ext/time/calculations.rb
index 931851d40e..46c9f05c15 100644
--- a/activesupport/lib/active_support/core_ext/time/calculations.rb
+++ b/activesupport/lib/active_support/core_ext/time/calculations.rb
@@ -62,6 +62,15 @@ class Time
     to_i - change(:hour => 0).to_i + (usec / 1.0e+6)
   end
 
+  # Returns the number of seconds until 23:59:59.
+  #
+  #   Time.new(2012, 8, 29,  0,  0,  0).seconds_until_end_of_day # => 86399
+  #   Time.new(2012, 8, 29, 12, 34, 56).seconds_until_end_of_day # => 41103
+  #   Time.new(2012, 8, 29, 23, 59, 59).seconds_until_end_of_day # => 0
+  def seconds_until_end_of_day
+    end_of_day.to_i - to_i
+  end
+
   # Returns a new Time where one or more of the elements have been changed according
   # to the +options+ parameter. The time options (<tt>:hour</tt>, <tt>:min</tt>,
   # <tt>:sec</tt>, <tt>:usec</tt>) reset cascadingly, so if only the hour is passed,
-- 
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