Class: WikiAnnotate

Inherits:
Object
  • Object
show all
Defined in:
app/models/wiki_page.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(content) ⇒ WikiAnnotate

Returns a new instance of WikiAnnotate



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# File 'app/models/wiki_page.rb', line 261

def initialize(content)
  @content = content
  current = content
  current_lines = current.text.split(/\r?\n/)
  @lines = current_lines.collect {|t| [nil, nil, t]}
  positions = []
  current_lines.size.times {|i| positions << i}
  while (current.previous)
    d = current.previous.text.split(/\r?\n/).diff(current.text.split(/\r?\n/)).diffs.flatten
    d.each_slice(3) do |s|
      sign, line = s[0], s[1]
      if sign == '+' && positions[line] && positions[line] != -1
        if @lines[positions[line]][0].nil?
          @lines[positions[line]][0] = current.version
          @lines[positions[line]][1] = current.author
        end
      end
    end
    d.each_slice(3) do |s|
      sign, line = s[0], s[1]
      if sign == '-'
        positions.insert(line, -1)
      else
        positions[line] = nil
      end
    end
    positions.compact!
    # Stop if every line is annotated
    break unless @lines.detect { |line| line[0].nil? }
    current = current.previous
  end
  @lines.each { |line|
    line[0] ||= current.version
    # if the last known version is > 1 (eg. history was cleared), we don't know the author
    line[1] ||= current.author if current.version == 1
  }
end

Instance Attribute Details

#content ⇒ Object (readonly)

Returns the value of attribute content



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# File 'app/models/wiki_page.rb', line 259

def content
  @content
end

#lines ⇒ Object (readonly)

Returns the value of attribute lines



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# File 'app/models/wiki_page.rb', line 259

def lines
  @lines
end