Added Time::Conversions for getting times in different convenient string...

Added Time::Conversions for getting times in different convenient string representations and other objects

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@737 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activesupport/CHANGELOG

+* Added Time::Conversions for getting times in different convenient string representations and other objects
+
 * Added Time::Calculations to ask for things like Time.now.tomorrow, Time.now.yesterday, Time.now.months_ago(4) #580 [DP|Flurin]. Examples:
 
     "Later today"         => now.in(3.hours),

activesupport/lib/active_support/core_ext/time.rb

 require File.dirname(__FILE__) + '/time/calculations'
+require File.dirname(__FILE__) + '/time/conversions'
 
 class Time#:nodoc:
   include ActiveSupport::CoreExtensions::Time::Calculations
+  include ActiveSupport::CoreExtensions::Time::Conversions
 end

activesupport/lib/active_support/core_ext/time/conversions.rb

+module ActiveSupport #:nodoc:
+  module CoreExtensions #:nodoc:
+    module Time #:nodoc:
+      # Getting times in different convenient string representations and other objects
+      module Conversions
+        def self.append_features(klass)
+          super
+          klass.send(:alias_method, :to_default_s, :to_s)
+          klass.send(:alias_method, :to_s, :to_formatted_s)
+        end
+        
+        def to_formatted_s(format = :default)
+          case format
+            when :default then to_default_s
+            when :db      then strftime("%Y-%m-%d %H:%M:%S")
+            when :short   then strftime("%e %b %H:%M").strip
+            when :long    then strftime("%e %B, %Y %H:%M").strip
+          end
+        end
+
+        def to_date
+          Date.new(year, month, day)
+        end
+
+        # To be able to keep Dates and Times interchangeable on conversions
+        def to_time
+          self
+        end
+      end
+    end
+  end
+end
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activesupport/test/core_ext/time_ext_test.rb

@@ -86,4 +86,18 @@ def test_next_week
     assert_equal Time.local(2005,2,29), Time.local(2005,2,22,15,15,10).next_week(:tuesday)
     assert_equal Time.local(2005,3,4), Time.local(2005,2,22,15,15,10).next_week(:friday)
   end
+
+  def test_to_s
+    assert_equal "2005-02-21 17:44:30",     Time.local(2005, 2, 21, 17, 44, 30).to_s(:db)
+    assert_equal "21 Feb 17:44",            Time.local(2005, 2, 21, 17, 44, 30).to_s(:short)
+    assert_equal "21 February, 2005 17:44", Time.local(2005, 2, 21, 17, 44, 30).to_s(:long)
+  end
+  
+  def test_to_date
+    assert_equal Date.new(2005, 2, 21), Time.local(2005, 2, 21, 17, 44, 30).to_date
+  end
+  
+  def test_to_time
+    assert_equal Time.local(2005, 2, 21, 17, 44, 30), Time.local(2005, 2, 21, 17, 44, 30).to_time
+  end
 end
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