Added to_s(:db) to Range

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2506 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activesupport/CHANGELOG

@@ -1,5 +1,7 @@
 *SVN*
 
+* Added to_s(:db) to Range, so you can get "BETWEEN '2005-12-10' AND '2005-12-12'" from Date.new(2005, 12, 10)..Date.new(2005, 12, 12) (and likewise with Times)
+
 * Moved require_library_or_gem into Kernel. #1992 [Michael Schuerig <michael@schuerig.de>]
 
 * Add :rfc822 as an option for Time#to_s (to get rfc822-formatted times)

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

@@ -8,8 +8,7 @@ module Conversions
           :long  => "%B %e, %Y"
         }
         
-        def self.append_features(klass) #:nodoc:
-          super
+        def self.included(klass) #:nodoc:
           klass.send(:alias_method, :to_default_s, :to_s)
           klass.send(:alias_method, :to_s, :to_formatted_s)
         end

activesupport/lib/active_support/core_ext/range.rb

@@ -0,0 +1,5 @@
+require File.dirname(__FILE__) + '/range/conversions'
+
+class Range #:nodoc:
+  include ActiveSupport::CoreExtensions::Range::Conversions
+end

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

@@ -0,0 +1,21 @@
+module ActiveSupport #:nodoc:
+  module CoreExtensions #:nodoc:
+    module Range #:nodoc:
+      # Getting dates in different convenient string representations and other objects
+      module Conversions
+        DATE_FORMATS = {
+          :db => Proc.new { |start, stop| "BETWEEN '#{start.to_s(:db)}' AND '#{stop.to_s(:db)}'" }
+        }
+        
+        def self.included(klass) #:nodoc:
+          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)
+          DATE_FORMATS[format] ? DATE_FORMATS[format].call(first, last) : to_default_s   
+        end
+      end
+    end
+  end
+end

activesupport/test/core_ext/range_ext_test.rb

@@ -0,0 +1,16 @@
+require 'test/unit'
+require File.dirname(__FILE__) + '/../../lib/active_support/core_ext/date'
+require File.dirname(__FILE__) + '/../../lib/active_support/core_ext/time'
+require File.dirname(__FILE__) + '/../../lib/active_support/core_ext/range'
+
+class RangeTest < Test::Unit::TestCase
+  def test_to_s_from_dates
+    date_range = Date.new(2005, 12, 10)..Date.new(2005, 12, 12)
+    assert_equal "BETWEEN '2005-12-10' AND '2005-12-12'", date_range.to_s(:db)
+  end
+
+  def test_to_s_from_times
+    date_range = Time.utc(2005, 12, 10, 15, 30)..Time.utc(2005, 12, 10, 17, 30)
+    assert_equal "BETWEEN '2005-12-10 15:30:00' AND '2005-12-10 17:30:00'", date_range.to_s(:db)
+  end
+end