method

source_extract

v2.1.0 - Show latest stable - 0 notes - Class: ActionView::TemplateError

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source_extract(indentation = 0) public

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# File actionpack/lib/action_view/template_error.rb, line 33
    def source_extract(indentation = 0)
      return unless num = line_number
      num = num.to_i

      source_code = IO.readlines(@file_path)

      start_on_line = [ num - SOURCE_CODE_RADIUS - 1, 0 ].max
      end_on_line   = [ num + SOURCE_CODE_RADIUS - 1, source_code.length].min

      indent = ' ' * indentation
      line_counter = start_on_line
      return unless source_code = source_code[start_on_line..end_on_line] 
      
      source_code.sum do |line|
        line_counter += 1
        "#{indent}#{line_counter}: #{line}"
      end
    end

source_extract

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