From: Rob Biedenharn <Rob@...>
Date: 2009-05-03T05:42:10+09:00
Subject: Re: n00b ? re: CGI Hash and arrays

On May 2, 2009, at 4:27 PM, Jeff Leggett wrote:

> Hi, n00b here, and got myself stumped on something I thought was easy.
>
> I get CGI params returned as:
>
> params: {"conf_mod"=>["20"], "conf_impact"=>["10"],
> "avail_impact"=>["5"], "integrity_impact"=>["5"],
> "authorization"=>["5"], "integrity_mod"=>["5"]}
>
> I just want to add up the values in the hash keys.  Seems simple,  
> but an
> hour or so later, after trying numerous things no go.  Any help
> appreciated.

So you want to end up with total == 50, right?

The values are arrays of strings, so you need to sum up the (single)  
values after turning them to integers.

total = 0
values.each_value {|v| v.each {|s| total += s.to_i } }
puts "total: #{total}"


irb> total = 0
=> 0
irb> values.each_value {|v| v.each {|s| total += s.to_i } }
=> {"conf_mod"=>["20"], "conf_impact"=>["10"], "avail_impact"=>["5"],  
"integrity_impact"=>["5"], "authorization"=>["5"],  
"integrity_mod"=>["5"]}
irb> puts "total: #{total}"
total: 50
=> nil

-Rob

Rob Biedenharn		http://agileconsultingllc.com
Rob@AgileConsultingLLC.com

> #!/usr/bin/ruby
>
> require "cgi"
>
> cgi = CGI.new('html4')
> values = cgi.params
> #values.each_value { |y| total += (eval y.join('+'))  }
> #values.each_value { |x| total += x[0] }
> #values.each_value do |v| puts v end
> #cgi.header
> cgi.out() do
>    cgi.html() do
>      cgi.head{ cgi.title{"TITLE"} } +
>      cgi.body() do
>        cgi.pre() do
>          CGI::escapeHTML(
>            "params: " + cgi.params.inspect + "\n"
>           "total: " + puts(total) + "\n"
>          )
>        end
>      end
>    end
> end
> -- 
> Posted via http://www.ruby-forum.com/.
>