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# redMine - project management software
# Copyright (C) 2006-2007 Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
require 'zlib'
class WikiContent < ActiveRecord::Base
set_locking_column :version
belongs_to :page, :class_name => 'WikiPage', :foreign_key => 'page_id'
belongs_to :author, :class_name => 'User', :foreign_key => 'author_id'
validates_presence_of :text
acts_as_versioned
class Version
belongs_to :page, :class_name => '::WikiPage', :foreign_key => 'page_id'
belongs_to :author, :class_name => '::User', :foreign_key => 'author_id'
attr_protected :data
acts_as_event :title => Proc.new {|o| "#{l(:label_wiki_edit)}: #{o.page.title} (##{o.version})"},
:description => :comments,
:datetime => :updated_on,
:type => 'wiki-page',
:url => Proc.new {|o| {:controller => 'wiki', :id => o.page.wiki.project_id, :page => o.page.title, :version => o.version}}
def text=(plain)
case Setting.wiki_compression
when 'gzip'
begin
self.data = Zlib::Deflate.deflate(plain, Zlib::BEST_COMPRESSION)
self.compression = 'gzip'
rescue
self.data = plain
self.compression = ''
end
else
self.data = plain
self.compression = ''
end
plain
end
def text
@text ||= case compression
when 'gzip'
Zlib::Inflate.inflate(data)
else
# uncompressed data
data
end
end
def project
page.project
end
# Returns the previous version or nil
def previous
@previous ||= WikiContent::Version.find(:first,
:order => 'version DESC',
:include => :author,
:conditions => ["wiki_content_id = ? AND version < ?", wiki_content_id, version])
end
end
end
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