Added Time#end_of_month to accompany Time#beginning_of_month (closes #2514)...

Added Time#end_of_month to accompany Time#beginning_of_month (closes #2514) [Jens-Christian Fischer]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@2745 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activesupport/CHANGELOG

+*SVN*
+
+* Added Time#end_of_month to accompany Time#beginning_of_month #2514 [Jens-Christian Fischer]
+
+
 *1.2.2* (October 26th, 2005)
 
 * Set Logger.silencer = false to disable Logger#silence.  Useful for debugging fixtures.

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

@@ -145,6 +145,14 @@ def beginning_of_month
         end
         alias :at_beginning_of_month :beginning_of_month
         
+        # Returns a new Time representing the end of the month (last day of the month, 0:00)
+        def end_of_month
+          #self - ((self.mday-1).days + self.seconds_since_midnight)
+          last_day = ::Time.days_in_month( self.month, self.year )
+          change(:mday => last_day,:hour => 0, :min => 0, :sec => 0, :usec => 0)
+        end
+        alias :at_end_of_month :end_of_month
+        
         # Returns  a new Time representing the start of the year (1st of january, 0:00)
         def beginning_of_year
           change(:month => 1,:mday => 1,:hour => 0, :min => 0, :sec => 0, :usec => 0)

activesupport/test/core_ext/time_ext_test.rb

@@ -30,6 +30,13 @@ def test_beginning_of_month
     assert_equal Time.local(2005,2,1,0,0,0), Time.local(2005,2,22,10,10,10).beginning_of_month
   end
   
+  def test_end_of_month
+    assert_equal Time.local(2005,3,31,0,0,0), Time.local(2005,3,20,10,10,10).end_of_month
+    assert_equal Time.local(2005,2,28,0,0,0), Time.local(2005,2,20,10,10,10).end_of_month
+    assert_equal Time.local(2005,4,30,0,0,0), Time.local(2005,4,20,10,10,10).end_of_month
+    
+  end
+  
   def test_beginning_of_year
     assert_equal Time.local(2005,1,1,0,0,0), Time.local(2005,2,22,10,10,10).beginning_of_year
   end