From: Haruka YAGNI <hyagni@...>
Date: 2011-04-01T16:50:56+09:00
Subject: Re: SImple question about file io

Hi. Paul.

I could not reproduce your error, but there is a obvious problem.
File open mode "r+" does not create  a file if it is not existing.
This might not be what you want.

Please replace "r+" with "a" (add new lines to the last of a file) and re-try.


On Fri, Apr 1, 2011 at 4:31 PM, Paul Joyce <pjoyce@whatsthis.ie> wrote:
> Hello there
>
> I am a little frustrated by a simple problem.  This the script below is
> failing with
>
> C:/projects/LAF-01/For-District-Managers/breakout.rb:23:in `block in
> <main>': wrong argument type Object (expected Data) (TypeError)
>
> This script simple breaks a large file into smaller ones byu the first
> column (District).  However, it will not write to the file opf for some
> reason.  I have done this so many times - what am Imissing.
>
> thanks
> p
>
>
> data = Array.new
> curr = "x"
> colhead = "District,Contract No,Contract Status,Tariff,Name,Supply Point
> No,Meter No,Meter Make,Address 1,Address 2,Address 3,Address 4,ICS
> Feeder Information,Feeder Name,Feeder Meter No,Comments"
>
> #puts template
> ipf = File.new("All-Contracts-29-Mar-11.csv","r")
>      ipf.each_line { |line|
>      next if line.match(/^$/)
>      data = line.split(",")
>      if curr == "x"     #  Initialize
>        puts "Initialize . . " + data[0]
>        opf = File.new(data[0] + '-feeder-customer.csv',"r+")
>        opf.puts colhead   # <-----  HERE
>      end
>      if curr != data[0] and curr != "x"
>         puts "New File . . . " + data[0]
>         opf.close
>         opf = File.new(data[0] + "-feeder-customer.csv","r+")
>         opf.puts colhead
>      end
>      opf.puts line
>      curr = data[0]
>    }
> ipf.close;
> opf.close;
>
> puts 'DONE.'
>
> --
> Posted via http://www.ruby-forum.com/.
>
>



-- 
Haruka YAGNI
hyagni@gmail.com