Module: Mongoid::History::Trackable::MyInstanceMethods

Defined in:
lib/mongoid/history/trackable.rb

Instance Method Summary collapse

Instance Method Details

#get_version(version) ⇒ Object 



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# File 'lib/mongoid/history/trackable.rb', line 161

def get_version(version)
  track = history_tracks.first
  
  track.modified.keys.each do |key|
    track[key] = track.modified[key]
  end
  
  version -= 1
  
  if (version < 0)
    return nil
  end
  
  if (version >= history_tracks.count)
    version = history_tracks.count-1
  end
  
  for i in 1..version

    history_tracks[i].modified.keys.each do |key|
      track[key] = history_tracks[i].modified[key]
    end

    track.modified = history_tracks[i].modified
    track.original = history_tracks[i].original

  end

  track.version = version
  track
end

#history_tracks ⇒ Object 



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# File 'lib/mongoid/history/trackable.rb', line 80

def history_tracks
  @history_tracks ||= Mongoid::History.tracker_class.where(:scope => history_trackable_options[:scope], :association_chain => association_hash)
end

#redo!(modifier, options_or_version = nil) ⇒ Object 



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# File 'lib/mongoid/history/trackable.rb', line 150

def redo!(modifier, options_or_version=nil)
  versions = get_versions_criteria(options_or_version).to_a
  versions.sort!{|v1, v2| v1.version <=> v2.version}

  versions.each do |v|
    redo_attr = v.redo_attr(modifier)
    self.attributes = redo_attr
  end
  save!
end

#undo!(modifier, options_or_version = nil) ⇒ Object

undo :from => 1, :to => 5

undo 4
undo :last => 10



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# File 'lib/mongoid/history/trackable.rb', line 87

def undo!(modifier, options_or_version=nil)
  if (!options_or_version.is_a?(Hash))
    version = get_version(options_or_version.to_i)
    attrs = {}
    fields = history_tracks.first.modified.keys
    
    if history_trackable_options[:on] == :all

      fields.each do |k|
        if !history_trackable_options[:except].include?(k)
          if (!version.attributes[:modified].nil? && version.attributes[:modified].include?(k))
            attrs[k] = version.attributes[:modified][k]
          else
            attrs[k] = version.attributes[k]
          end
        end
      end
  
    else
  
      fields.each do |k|
        if history_trackable_options[:on].include?(k)
          
          if (!version.attributes[:modified].nil? && version.attributes[:modified].include?(k))
            attrs[k] = version.attributes[:modified][k]
          else
            attrs[k] = version.attributes[k]
          end
          
        end
      end
  
    end
    
    if history_trackable_options[:remember_attachment]
      
      addr = [Rails.root, '/public/', 'system/', 'store/', attachment_definitions.first.first.to_s, '/', id.to_s, '/', version.data_updated_at.to_i.to_s, '/'].join()
      Dir.chdir(addr)
      file_name = Dir.glob('*.*').first
      
      attach = File.new(addr + file_name) 
      data = attach
      
      attrs["data_file_name"] = file_name
      
    end
    
    self.update_attributes(attrs)
    
  else
    
    versions = get_versions_criteria(options_or_version).to_a
    versions.sort!{|v1, v2| v2.version <=> v1.version}
    
    versions.each do |v|
      undo_attr = v.undo_attr(modifier)
      self.attributes = v.undo_attr(modifier)
    end
  end

  save!
end