Adding support for header and url based versioning. Adding ActiveMode…

…l::Validations to validate config values

Gemfile.lock

@@ -2,14 +2,21 @@ PATH
   remote: .
   specs:
     versionist (0.1.0)
+      activemodel (~> 3.0)
       activesupport (~> 3.0)
 
 GEM
   remote: http://rubygems.org/
   specs:
+    activemodel (3.1.3)
+      activesupport (= 3.1.3)
+      builder (~> 3.0.0)
+      i18n (~> 0.6)
     activesupport (3.1.3)
       multi_json (~> 1.0)
+    builder (3.0.0)
     diff-lcs (1.1.3)
+    i18n (0.6.0)
     json (1.6.3)
     multi_json (1.0.4)
     rake (0.9.2)

lib/versionist.rb

@@ -1,10 +1,11 @@
 require 'versionist/railtie' if defined?(Rails) && Rails::VERSION::MAJOR == 3
 
+require 'active_support'
+
 module Versionist
-  class Configuration
-    attr_accessor :vendor_name
-    attr_accessor :default_version
-  end
+  extend ActiveSupport::Autoload
+
+  autoload :Configuration  
 
   def self.configuration
     @@configuration ||= Configuration.new

lib/versionist/configuration.rb

@@ -0,0 +1,14 @@
+require 'active_model'
+
+module Versionist
+  class Configuration
+    include ActiveModel::Validations
+    include ActiveModel::Validations::HelperMethods
+
+    attr_accessor :versioning_scheme
+    validates_inclusion_of :versioning_scheme, :in => %W( header url )
+
+    attr_accessor :vendor_name
+    attr_accessor :default_version
+  end
+end

spec/configuration_spec.rb

@@ -4,17 +4,39 @@
   context ".configure" do
     before :each do
       Versionist.configure do |config|
+        config.versioning_scheme = "header"
         config.vendor_name = "mydomain.com"
         config.default_version = "v1"
       end
     end
 
+    it "should configure the versioning_scheme" do
+      Versionist.configuration.versioning_scheme.should == "header"
+    end
+
     it "should configure the vendor_name" do
       Versionist.configuration.vendor_name.should == "mydomain.com"
     end
 
     it "should configure the default_version" do
       Versionist.configuration.default_version.should == "v1"
     end
+
+    it "should validate versioning_scheme" do
+      Versionist.configure do |config|
+        config.versioning_scheme = "bogus"
+      end
+      Versionist.configuration.valid?.should == false
+
+      Versionist.configure do |config|
+        config.versioning_scheme = "header"
+      end
+      Versionist.configuration.valid?.should == true
+
+      Versionist.configure do |config|
+        config.versioning_scheme = "url"
+      end
+      Versionist.configuration.valid?.should == true
+    end
   end
 end

versionist.gemspec

@@ -18,6 +18,7 @@ Gem::Specification.new do |s|
   s.required_rubygems_version = '>= 1.3.6'
 
   s.add_dependency('activesupport', '~> 3.0')
+  s.add_dependency('activemodel', '~> 3.0')
 
   s.add_development_dependency('rake', '>= 0.9.2')
   s.add_development_dependency('rspec', '2.7.0')