From: David Alan Black <dblack@...>
Date: 2001-11-03T22:40:39+09:00
Subject: [ruby-talk:24261] param() method weirdness in cgi.rb

Hello --

Here's something bizarre involving cgi.rb (at least, I have no idea
whatsoever why it's happening).

All I want to do is grab a hidden value.  I'm using the param()
method, which looks like this:

    def param(name)
      @params[name].join("\0")
    end

However, it does nothing.  It doesn't even seem to be getting called.
If I change it to:

    def param(name)
      "BLAH!"
    end

I still don't get a value.

HOWEVER......

If I change the name of the method to "get_param", or "blah", or
anything other than "param", it works.

Here's my script:

   require 'cgi'

   @c = CGI.new("html4")

   def first
     @c.out do
       @c.html do
	 @c.param("var") + "first time" + @c.form do
	   @c.hidden("var", "hi") + @c.submit
	 end
       end
     end
   end

   def second
     @c.out do
       @c.html do
	 "second time"
       end
     end
   end

   case @c.param("var")
   when "hi" then second
   else first
   end

If I change the two called to param to get_param (and change it in
cgi.rb), then the flip from "first" to "second" works.  Otherwise it
doesn't.

This is so weird that I feel a certain serenity about it....  Insights
and explanations welcome.


David

-- 
David Alan Black
home: dblack@candle.superlink.net
work: blackdav@shu.edu
Web:  http://pirate.shu.edu/~blackdav