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