Flowdock
method

source_fragment

Importance_0
Ruby on Rails latest stable (v4.1.8) - 0 notes - Class: ExceptionWrapper
source_fragment(path, line) private

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# File actionpack/lib/action_dispatch/middleware/exception_wrapper.rb, line 99
    def source_fragment(path, line)
      return unless Rails.respond_to?(:root) && Rails.root
      full_path = Rails.root.join(path)
      if File.exist?(full_path)
        File.open(full_path, "r") do |file|
          start = [line - 3, 0].max
          lines = file.each_line.drop(start).take(6)
          Hash[*(start+1..(lines.count+start)).zip(lines).flatten]
        end
      end
    end
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