appraise "activerecord_3_0" do
  gem 'activerecord',  '~> 3.0'
  gem 'activesupport', '~> 3.0'
end

appraise "activerecord_3_1" do
  gem 'activerecord',  '~> 3.1'
  gem 'activesupport', '~> 3.1'
end

appraise "activerecord_3_2" do
  gem 'activerecord',  '~> 3.2'
  gem 'activesupport', '~> 3.2'
end

appraise "activerecord_4_0" do
  gem 'activerecord',  '~> 4.0.0.beta1'
  gem 'activesupport', '~> 4.0.0.beta1'
end