comparison app/models/.svn/text-base/wiki_content.rb.svn-base @ 0:513646585e45

* Import Redmine trunk SVN rev 3859

+# 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
+  validates_length_of :comments, :maximum => 255, :allow_nil => true
+  
+  acts_as_versioned
+  
+  def visible?(user=User.current)
+    page.visible?(user)
+  end
+    
+  def project
+    page.project
+  end
+  
+  def attachments
+    page.nil? ? [] : page.attachments
+  end
+  
+  # Returns the mail adresses of users that should be notified
+  def recipients
+    notified = project.notified_users
+    notified.reject! {|user| !visible?(user)}
+    notified.collect(&:mail)
+  end
+  
+  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}}
+
+    acts_as_activity_provider :type => 'wiki_edits',
+                              :timestamp => "#{WikiContent.versioned_table_name}.updated_on",
+                              :author_key => "#{WikiContent.versioned_table_name}.author_id",
+                              :permission => :view_wiki_edits,
+                              :find_options => {:select => "#{WikiContent.versioned_table_name}.updated_on, #{WikiContent.versioned_table_name}.comments, " +
+                                                           "#{WikiContent.versioned_table_name}.#{WikiContent.version_column}, #{WikiPage.table_name}.title, " +
+                                                           "#{WikiContent.versioned_table_name}.page_id, #{WikiContent.versioned_table_name}.author_id, " +
+                                                           "#{WikiContent.versioned_table_name}.id",
+                                                :joins => "LEFT JOIN #{WikiPage.table_name} ON #{WikiPage.table_name}.id = #{WikiContent.versioned_table_name}.page_id " +
+                                                          "LEFT JOIN #{Wiki.table_name} ON #{Wiki.table_name}.id = #{WikiPage.table_name}.wiki_id " +
+                                                          "LEFT JOIN #{Project.table_name} ON #{Project.table_name}.id = #{Wiki.table_name}.project_id"}
+
+    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