validate description max lenth

app/models/enterprise.rb

@@ -1,7 +1,6 @@
 class Enterprise < ActiveRecord::Base
   TYPES = %w(full single profile)
   ENTERPRISE_SEARCH_RADIUS = 100
-
   self.inheritance_column = nil
 
   acts_as_gmappable :process_geocoding => false
@@ -52,6 +51,7 @@ class Enterprise < ActiveRecord::Base
   validates :email, presence: true
   validates_presence_of :owner
   validate :enforce_ownership_limit, if: lambda { owner_id_changed? && !owner_id.nil? }
+  validates_length_of :description, :maximum => 255
 
   before_validation :ensure_owner_is_manager, if: lambda { owner_id_changed? && !owner_id.nil? }
   before_validation :set_unused_address_fields

spec/models/enterprise_spec.rb

@@ -86,6 +86,7 @@ describe Enterprise do
     subject { FactoryGirl.create(:distributor_enterprise, :address => FactoryGirl.create(:address)) }
     it { should validate_presence_of(:name) }
     it { should validate_presence_of(:email) }
+    it { should validate_length_of(:description, :maximum => 255) }
 
     it "requires an owner" do
       expect{