Listing file tree

Rails
1

Hey there,

I am programming a file tree listing for my rails project. I found some
code that seemed to do a nice job that would be perfect after some
styling.

This works smoothly in pure ruby when run on the console. However it
does not produce the results I want when integrated with Rails.

This is the model that is producing the result.

require ‘pathname’

class Filetree < ActiveRecord::Base

$result = []

def self.return_filetree_for_project(id)

$ArmMap = Hash.new("|   ")
$ArmMap[""] = ""

$ArmMap["`"] = "    "

ARGV << "." if ARGV.empty?

ARGV.map{ |path| visit(Pathname.new("/"), "", "", "",

Pathname.new(path) ) }

return $result

end

private

def self.visit(path, leader, tie, arm, node)

  $result << "#{leader}#{arm}#{tie}#{node}<br/>"

  visit_children(path + node, leader + $ArmMap[arm])

end

def self.visit_children(path, leader)

  return unless FileTest.directory? path
  return unless FileTest.readable? path

  files = path.children(false).sort    #false = return name, not

full path

  return if files.empty?

  arms = Array.new(files.length - 1, "|") << "`"

  pairs = files.zip(arms)
  pairs.each { |e|  visit(path, leader, "-- ", e[1], e[0]) }

end

end

And the output:

webrick
–port
3000

I have tried using various mixtures of the path, but I can only manage
to produce either this or an empty result. Do you have any ideas?

Thank you in advance,
Christoffer