From: Tim Wolak <tim.wolak@...>
Date: 2008-05-27T23:51:15+09:00
Subject: n00b question

Can someone explain to me why my script is printing the key to my hash
twice?  I need it to print the key then the value on the first iteration
and on the second iteration it should only print the value.  I am
getting information from two files, the account numbers and balances and
displaying account number, yesterday balance, today balance and the
difference.

Account = Struct.new(:account_number, :balance_yesterday,
:balance_today) do
  def difference
    balance_today - balance_yesterday
  end

  def to_s
    "#{account_number}\t#{balance_yesterday}\t#{balance_today}\t#{difference}\n"
  end
end


class SktyFut
  attr_reader :acct

  def initialize(filename)
    @acct = File.new(filename, "r")
  end

  def future_data
    @sktylist = Hash.new(0)
    @acct.each do |list|
      office = list[21..23] # =>
      if office == "RPT"
        next
      else
        acctnum = list[24..28]
      end
      lv = list[217..230]
      is_negative = list[215,1] == "-"
      value = lv.to_f/100
      value = -value if is_negative

      # Add vales to hash

      @sktylist[acctnum] += value
      end
    return @sktylist
  end
end

Dir.chdir("/Users/twolak")
post = SktyFut.new("FutBalances20080507.txt")
a = post.future_data
#puts a
pre = SktyFut.new("FutBalances20080506.txt")
b = pre.future_data
#puts b
my_hash = Hash.new {|h,k| h[k] = Account.new(k)}
a.each do |acc_nr, balance|
  my_hash[acc_nr].balance_yesterday = balance
end
b.each do |key, balance|
  my_hash[key].balance_today = balance
end

g = my_hash.to_s.sort
puts g

(the math will be wrong here as I have to take out info for security)
700700  1854.54  5652.05  3237970.2
701701  654.18  654.18  0.0
702702  99.07  99.07  0.0
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