Fixed Trac importer broken by r2670 (#3254).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@2705 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/tasks/migrate_from_trac.rake

@@ -135,8 +135,15 @@ namespace :redmine do
           File.file? trac_fullpath
         end
 
-        def read
+        def open
-          File.open("#{trac_fullpath}", 'rb').read
+          File.open("#{trac_fullpath}", 'rb') {|f|
+            @file = f
+            yield self
+          }
+        end
+
+        def read(*args)
+          @file.read(*args)
         end
 
         def description
@@ -506,12 +513,14 @@ namespace :redmine do
           # Attachments
           ticket.attachments.each do |attachment|
             next unless attachment.exist?
+              attachment.open {
                 a = Attachment.new :created_on => attachment.time
                 a.file = attachment
                 a.author = find_or_create_user(attachment.author)
                 a.container = i
                 a.description = attachment.description
                 migrated_ticket_attachments += 1 if a.save
+              }
           end
 
           # Custom fields