Separate databases in controllers

When i use a different database-connection, the plugin uses the new (my own) connection for finding pages etc... results in an error.

would be great if there is an easy fix for that.

My model:

class MyModel < ActiveRecord::Base
ActiveRecord::Base.establish_connection(YAML::load(ERB.new(IO.read("#{RAILS_ROOT}/config/mydbconf.yml")).result)["somenode_in_configfile"])

result:
Showing vendor/extensions/share_layouts/app/views/layouts/radiant.rhtml where line #1 raised:

Could not find table 'pages'

[saturnflyer]

can you propose any code to help with this?