Put back region_description method that was accidentally extracted

Gemfile

@@ -36,7 +36,7 @@ manageiq_plugin "manageiq-providers-vmware"
 manageiq_plugin "manageiq-ui-classic"
 
 # Unmodified gems
-gem "activerecord-id_regions",        "~>0.1.0"
+gem "activerecord-id_regions",        "~>0.2.0"
 gem "activerecord-session_store",     "~>1.0.0"
 gem "acts_as_tree",                   "~>2.1.0" # acts_as_tree needs to be required so that it loads before ancestry
 gem "ancestry",                       "~>2.2.1",       :require => false

lib/extensions/ar_region.rb

@@ -9,7 +9,7 @@ module ClassMethods
     def inherited(other)
       if other == other.base_class
         other.class_eval do
-          virtual_column :region_number,      :type => :integer
+          virtual_column :region_number,      :type => :integer # This method is defined in ActiveRecord::IdRegions
           virtual_column :region_description, :type => :string
         end
       end
@@ -20,4 +20,8 @@ def inherited(other)
   def miq_region
     self.class.id_to_miq_region[region_number] || (self.class.id_to_miq_region[region_number] = MiqRegion.where(:region => region_number).first)
   end
+
+  def region_description
+    miq_region.description if miq_region
+  end
 end

spec/lib/extensions/ar_region_spec.rb

@@ -23,4 +23,17 @@
       end.to match_query_limit_of(2)
     end
   end
+
+  context "#region_description" do
+    it "when the region exists" do
+      MiqRegion.seed
+      vm = FactoryGirl.create(:vm)
+      expect(vm.region_description).to eq(MiqRegion.first.description)
+    end
+
+    it "when the region does not exist" do
+      vm = FactoryGirl.create(:vm)
+      expect(vm.region_description).to be_nil
+    end
+  end
 end