Test associations with per class database connection

per_database_connection_not_established.rb

require 'active_record'

ActiveRecord::Base.configurations['my_connect'] = {:adapter=>'sqlite3', :database=>'fixture_database.sqlite3'}

class Car < ActiveRecord::Base
  establish_connection 'my_connect'
  has_many :tyres
end

class Tyre < ActiveRecord::Base
  establish_connection 'my_connect'
  belongs_to :car
end

car = Car.create :name=>'test-car'
tyre = car.tyres.create
p tyre.car