From: eagle eyes joe <jalotta@...>
Date: 2004-09-26T10:09:29+09:00
Subject: Re: mixin with A::B syntax

Greetings,

I still can't get this syntax to work.  Here is a smaller program
that I am trying to get to run.  Thank you for all your help.


This is the error message I get:



[Abba:/tmp] josephal% ./test
../test:5: Mysql is not a module (TypeError)





[Abba:/tmp] josephal% cat ./test
#!/usr/bin/ruby

require 'mysql'

module Mysql
  class Result
      def foo
        print "This is foo\n"
      end
  end
end

m = Mysql.new("localhost", "root", "", "Development")

r = m.query("select * from processedfiles limit 5")

r.foo


[Abba:/tmp] josephal% 






   From:      dblack@wobblini.net
   Subject:    Re: mixin with A::B syntax
   Date:    September 23, 2004 7:40:38 PM CDT
   To:     undisclosed-recipients: ;

Hi --

On Fri, 24 Sep 2004, Brian Schroeder wrote:

On Thu, 23 Sep 2004 19:52:01 +0000, eagle eyes joe wrote:

Greetings,

I want to define a generic print method to use in debugging.  I got the
mix in syntax okay for classes like Hash or String, but for 
Mysql::Result,
it doesn't seem to work.  What would the proper syntax be?


Joe Alotta


#!/usr/bin/ruby

require 'mysql'

class Mysql::Result
def print
    self.each_hash do |i|
        i.each do |k, v|  { print "#{k} = #{v} "} puts

   end
end
end

m = Mysql.new("localhost", "root", "", "Development")

s = m.query("select * from symbols where type = 'MU'")

s.print


Joe Alotta

module Mysql
  class Result
    def print
      [...]
    end
  end
end

I believe that should have the same effect as Joe's example.  The only
difference between going one at a time and doing Mysql::Result is the
scope of constants.


David

-- 
David A. Black
dblack@wobblini.net