Merged r6147 and r6149 from trunk.

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/branches/1.2-stable@6160 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/issue.rb

@@ -228,6 +228,13 @@ class Issue < ActiveRecord::Base
     result
   end
   
+  def description=(arg)
+    if arg.is_a?(String)
+      arg = arg.gsub(/(\r\n|\n|\r)/, "\r\n")
+    end
+    write_attribute(:description, arg)
+  end
+
   # Overrides attributes= so that tracker_id gets assigned first
   def attributes_with_tracker_first=(new_attributes, *args)
     return if new_attributes.nil?
@@ -870,10 +877,13 @@ class Issue < ActiveRecord::Base
     if @current_journal
       # attributes changes
       (Issue.column_names - %w(id root_id lft rgt lock_version created_on updated_on)).each {|c|
+        before = @issue_before_change.send(c)
+        after = send(c)
+        next if before == after || (before.blank? && after.blank?)
         @current_journal.details << JournalDetail.new(:property => 'attr',
                                                       :prop_key => c,
                                                       :old_value => @issue_before_change.send(c),
-                                                      :value => send(c)) unless send(c)==@issue_before_change.send(c)
+                                                      :value => send(c))
       }
       # custom fields changes
       custom_values.each {|c|

test/unit/issue_test.rb

@@ -734,6 +734,27 @@ class IssueTest < ActiveSupport::TestCase
     assert_equal new_description, detail.value
   end
   
+  def test_blank_descriptions_should_not_be_journalized
+    IssueCustomField.delete_all
+    Issue.update_all("description = NULL", "id=1")
+    
+    i = Issue.find(1)
+    i.init_journal(User.find(2))
+    i.subject = "blank description"
+    i.description = "\r\n"
+    
+    assert_difference 'Journal.count', 1 do
+      assert_difference 'JournalDetail.count', 1 do
+        i.save!
+      end
+    end
+  end
+  
+  def test_description_eol_should_be_normalized
+    i = Issue.new(:description => "CR \r LF \n CRLF \r\n")
+    assert_equal "CR \r\n LF \r\n CRLF \r\n", i.description
+  end
+
   def test_saving_twice_should_not_duplicate_journal_details
     i = Issue.find(:first)
     i.init_journal(User.find(2), 'Some notes')