From: Tobias <tobias.hutzler@...>
Date: 2007-01-21T22:14:00+09:00
Subject: Re: Newbie quesiton about inheritance single table


Tobias schrieb:

> Hello ng,
>
> person.rb:
> _____________________________
> class Person < ActiveRecord::Base
>
>  def initialize(mytype)
>    @type=mytype.to_s
>  end
>
>  def self.find_employee
>    find(:all, :conditions => "type='Employee''")
>  end
>
>
> end
>
> class Employee < Person
>  def initialize
>    super('Employee')
>  end
>
> end
>
> class Manager < Person
>  def initialize
>    super('Manager')
>  end
>
> end
> ____________________
>
> Okay, if I run ruby script/console
> and create an instance of Employee with :
> e= Employee.new
>
> following error displayed:
>
> uninitialized Constant Employee
>
> if I first create a Person with:
>
> p= Person.new('Bla Bla')
>
> and then create an instance of Employee
> with e= Employee.new
> 
> why is it so???
> 
> Thanks for help
> 
> Tobias

Sorry wrong ng