play nice with Rails 3 and 4

.travis.yml

@@ -2,3 +2,6 @@ language: ruby
 rvm:
   - 1.9.3
   - 2.0.0
+gemfile:
+  - gemfiles/Gemfile.rails-3.2.x
+  - Gemfile

api_taster.gemspec

@@ -14,7 +14,7 @@ Gem::Specification.new do |s|
   s.files      = `git ls-files`.split($\)
   s.test_files = Dir["spec/**/*"]
 
-  s.add_dependency 'rails', '>= 4.0'
+  s.add_dependency 'rails', '>= 3.2'
   s.add_dependency 'jquery-rails'
   s.add_dependency 'sass-rails'
   s.add_dependency 'bootstrap-sass', '~> 2.1'

gemfiles/Gemfile.rails-3.2.x

@@ -0,0 +1,5 @@
+source "https://rubygems.org"
+
+gemspec :path => '..'
+
+gem "rails", "~> 3.2.6"

spec/mapper_spec.rb

@@ -36,7 +36,11 @@ module ApiTaster
     before(:all) do
       Rails.application.routes.draw do
         resources :dummy_users do
-          member { map_method :patch, [:update] }
+          if Rails.version.starts_with? '4'
+            member { map_method :patch, [:update] }
+          else
+            member { map_method :patch, :update }
+          end
         end
       end