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# Redmine - project management software
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# Copyright (C) 2006-2012 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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self.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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validates_length_of :comments, :maximum => 255, :allow_nil => true
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acts_as_versioned
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def visible?(user=User.current)
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page.visible?(user)
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end
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def project
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page.project
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end
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def attachments
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page.nil? ? [] : page.attachments
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end
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# Returns the mail adresses of users that should be notified
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def recipients
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notified = project.notified_users
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notified.reject! {|user| !visible?(user)}
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notified.collect(&:mail)
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end
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# Return true if the content is the current page content
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def current_version?
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true
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end
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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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:type => 'wiki-page',
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:url => Proc.new {|o| {:controller => 'wiki', :action => 'show', :project_id => o.page.wiki.project, :id => o.page.title, :version => o.version}}
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acts_as_activity_provider :type => 'wiki_edits',
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:timestamp => "#{WikiContent.versioned_table_name}.updated_on",
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:author_key => "#{WikiContent.versioned_table_name}.author_id",
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:permission => :view_wiki_edits,
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:find_options => {:select => "#{WikiContent.versioned_table_name}.updated_on, #{WikiContent.versioned_table_name}.comments, " +
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"#{WikiContent.versioned_table_name}.#{WikiContent.version_column}, #{WikiPage.table_name}.title, " +
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"#{WikiContent.versioned_table_name}.page_id, #{WikiContent.versioned_table_name}.author_id, " +
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"#{WikiContent.versioned_table_name}.id",
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:joins => "LEFT JOIN #{WikiPage.table_name} ON #{WikiPage.table_name}.id = #{WikiContent.versioned_table_name}.page_id " +
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"LEFT JOIN #{Wiki.table_name} ON #{Wiki.table_name}.id = #{WikiPage.table_name}.wiki_id " +
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"LEFT JOIN #{Project.table_name} ON #{Project.table_name}.id = #{Wiki.table_name}.project_id"}
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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 ||= begin
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str = 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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str.force_encoding("UTF-8") if str.respond_to?(:force_encoding)
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str
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end
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end
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def project
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page.project
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end
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# Return true if the content is the current page content
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def current_version?
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page.content.version == self.version
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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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