From: Nick da G <nick.gorbikoff@...>
Date: 2009-05-05T06:39:28+09:00
Subject: accessing one class from another class

Hello, All.

I'm trying to consuming an xml file and map it to a Ruby object that
would describe that xml file.

What would be the best way to implement the following scenario.

Let's say I have several classes: Student, Course, Person, Tuition
Xml for this would look like this:
<Record>
<Student status="good">
  <Person>
    <Name>Alice</Name>
    <BirthPlace>WonderLand</BirthPlace>
  </Person>
  <Course difficulty=">
    <CourseName>Math III</CourseName>
    <Grade>B+</Grade>
  </Course>
  <dt:Tuition>
    <dt:Currency>USD</dt:Currency>
    <dt:Amount>500</dt:Amount>
    <dt:Period>3 months</dt:Period>
  </dt:Tuition>
</Student>
</Record>
So basically I can parse the xml file using rexml and access all of my
xml tags and stuff.

Here is the Object I want to map it to:


class Student
 @status
 @person - access Person
end

class Person
end

class Course
end

class Tution
end



So the question is how do I access from class Student - class Person? So
that when I down the line later when I parse the file and do:

r = Record.new

I want to be able to do things like:
r.student.person.name

????


Thank you
-- 
Posted via http://www.ruby-forum.com/.