From: Brian Candler <b.candler@...>
Date: 2009-08-18T19:32:52+09:00
Subject: Re: External Model Definition Using ActiveRecord

Elizabeth wrote:
> I've been Googling this topic, and I haven't found the answer.
> 
> In Rails, the Models are defined in external files.  How do you use
> externally defined models in Ruby using ActiveRecord.  I have a rails
> app and a ruby app which will share the model definitions.  I want to
> use the DRY technique, so I don't want to define them both in the
> models directory and inside the Ruby application.

At simplest, just load them:

require 'rubygems'
require 'active_record'
require 'app/models/foo'
require 'app/models/bar'

However you still need to establish_connection to the database in your 
app.

Alternatively you may decide to bootstrap the entire Rails environment, 
which you can do most easily by running your script like so:

   script/runner myscript.rb

Then it will use the config/database.yml entries to connect to the 
database as well.

Also, you can use script/console to get an irb session with the models 
already wired up.
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