Chris@441: # Redmine - project management software
Chris@441: # Copyright (C) 2006-2011  Jean-Philippe Lang
Chris@0: #
Chris@0: # This program is free software; you can redistribute it and/or
Chris@0: # modify it under the terms of the GNU General Public License
Chris@0: # as published by the Free Software Foundation; either version 2
Chris@0: # of the License, or (at your option) any later version.
Chris@441: #
Chris@0: # This program is distributed in the hope that it will be useful,
Chris@0: # but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@0: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
Chris@0: # GNU General Public License for more details.
Chris@441: #
Chris@0: # You should have received a copy of the GNU General Public License
Chris@0: # along with this program; if not, write to the Free Software
Chris@0: # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
Chris@0: 
Chris@0: module AttachmentsHelper
Chris@0:   # Displays view/delete links to the attachments of the given object
Chris@0:   # Options:
Chris@0:   #   :author -- author names are not displayed if set to false
Chris@0:   def link_to_attachments(container, options = {})
Chris@0:     options.assert_valid_keys(:author)
Chris@441: 
Chris@0:     if container.attachments.any?
Chris@0:       options = {:deletable => container.attachments_deletable?, :author => true}.merge(options)
Chris@0:       render :partial => 'attachments/links', :locals => {:attachments => container.attachments, :options => options}
Chris@0:     end
Chris@0:   end
Chris@441: 
Chris@0:   def to_utf8(str)
Chris@119:     if str.respond_to?(:force_encoding)
Chris@119:       str.force_encoding('UTF-8')
Chris@119:       return str if str.valid_encoding?
Chris@119:     else
Chris@119:       return str if /\A[\r\n\t\x20-\x7e]*\Z/n.match(str) # for us-ascii
Chris@119:     end
Chris@441: 
Chris@119:     begin
Chris@119:       Iconv.conv('UTF-8//IGNORE', 'UTF-8', str + '  ')[0..-3]
Chris@119:     rescue Iconv::InvalidEncoding
Chris@119:       # "UTF-8//IGNORE" is not supported on some OS
Chris@119:       str
Chris@119:     end
Chris@0:   end
Chris@0: end