From e9dad7496d8249a1487a471978d316a4360627d1 Mon Sep 17 00:00:00 2001
From: Geoff Buesing <gbuesing@gmail.com>
Date: Sat, 12 Jan 2008 20:44:31 +0000
Subject: Refactor number-to-HH:MM-string conversion logic from
 TimeZone#formatted_offset to reusable Numeric#to_utc_offset_s method

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8635 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
---
 activesupport/lib/active_support/core_ext/numeric.rb  |  4 +++-
 .../active_support/core_ext/numeric/conversions.rb    | 19 +++++++++++++++++++
 activesupport/lib/active_support/values/time_zone.rb  |  5 +----
 3 files changed, 23 insertions(+), 5 deletions(-)
 create mode 100644 activesupport/lib/active_support/core_ext/numeric/conversions.rb

(limited to 'activesupport/lib')

diff --git a/activesupport/lib/active_support/core_ext/numeric.rb b/activesupport/lib/active_support/core_ext/numeric.rb
index 59da205b3d..759b86b81d 100644
--- a/activesupport/lib/active_support/core_ext/numeric.rb
+++ b/activesupport/lib/active_support/core_ext/numeric.rb
@@ -1,7 +1,9 @@
 require 'active_support/core_ext/numeric/time'
 require 'active_support/core_ext/numeric/bytes'
+require 'active_support/core_ext/numeric/conversions'
 
 class Numeric #:nodoc:
   include ActiveSupport::CoreExtensions::Numeric::Time 
-  include ActiveSupport::CoreExtensions::Numeric::Bytes 
+  include ActiveSupport::CoreExtensions::Numeric::Bytes
+  include ActiveSupport::CoreExtensions::Numeric::Conversions 
 end
diff --git a/activesupport/lib/active_support/core_ext/numeric/conversions.rb b/activesupport/lib/active_support/core_ext/numeric/conversions.rb
new file mode 100644
index 0000000000..e652ae5ca8
--- /dev/null
+++ b/activesupport/lib/active_support/core_ext/numeric/conversions.rb
@@ -0,0 +1,19 @@
+module ActiveSupport #:nodoc:
+  module CoreExtensions #:nodoc:
+    module Numeric #:nodoc:
+      module Conversions
+        # Assumes self represents an offset from UTC in seconds (as returned from Time#utc_offset)
+        # and turns this into an +HH:MM formatted string. Example:
+        #
+        #   -21_600.to_utc_offset_s   # => "-06:00"
+        def to_utc_offset_s(colon=true)
+          seconds = self
+          sign = (seconds < 0 ? -1 : 1)
+          hours = seconds.abs / 3600
+          minutes = (seconds.abs % 3600) / 60
+          "%+03d%s%02d" % [ hours * sign, colon ? ":" : "", minutes ]
+        end
+      end
+    end
+  end
+end
diff --git a/activesupport/lib/active_support/values/time_zone.rb b/activesupport/lib/active_support/values/time_zone.rb
index b7df68fe33..09896c0aee 100644
--- a/activesupport/lib/active_support/values/time_zone.rb
+++ b/activesupport/lib/active_support/values/time_zone.rb
@@ -26,10 +26,7 @@ class TimeZone
   # result.
   def formatted_offset( colon=true )
     return "" if utc_offset == 0
-    sign = (utc_offset < 0 ? -1 : 1)
-    hours = utc_offset.abs / 3600
-    minutes = (utc_offset.abs % 3600) / 60
-    "%+03d%s%02d" % [ hours * sign, colon ? ":" : "", minutes ]
+    utc_offset.to_utc_offset_s(colon)
   end
 
   # Compute and return the current time, in the time zone represented by
-- 
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