diff --git a/examples/usual/example1/season.rb b/examples/usual/example1/season.rb
index 4c86af5..6c8f9cd 100644
--- a/examples/usual/example1/season.rb
+++ b/examples/usual/example1/season.rb
@@ -7,11 +7,20 @@ class Season < Datory::Base
       # uuid! :serialId, to: :serial_id
 
       integer! :number
+      string! :code
 
       # many! :episodes, include: Episode
 
       date! :premieredOn, to: :premiered_on
       date? :endedOn, to: :ended_on
+
+      getter :code do |attributes:|
+        "s#{attributes.fetch(:number)}"
+      end
+
+      setter :code do |attributes:|
+        "s#{attributes.fetch(:number)}"
+      end
     end
   end
 end
diff --git a/spec/examples/usual/example1/serial_spec.rb b/spec/examples/usual/example1/serial_spec.rb
index b2d7135..1b429c8 100644
--- a/spec/examples/usual/example1/serial_spec.rb
+++ b/spec/examples/usual/example1/serial_spec.rb
@@ -296,6 +296,7 @@
                 {
                   id: "27df8a44-556f-4e08-9984-4aa663b78f98",
                   number: 1,
+                  code: "s1",
                   premieredOn: "2008-09-03",
                   endedOn: "2008-11-26"
                 }
@@ -354,6 +355,7 @@
                 {
                   id: "27df8a44-556f-4e08-9984-4aa663b78f98",
                   number: 1,
+                  code: "s1",
                   premieredOn: "2008-09-03",
                   endedOn: "2008-11-26"
                 }
@@ -1203,6 +1205,7 @@
               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
               | id          | String             | id           | String           |
               | number      | Integer            | number       | Integer          |
+              | code        | String             | code         | String           |
               | premieredOn | String             | premiered_on | Date             |
               | endedOn     | [String, NilClass] | ended_on     | [Date, NilClass] |
               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -1319,6 +1322,7 @@
               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
               | id          | String             | id           | String           |
               | number      | Integer            | number       | Integer          |
+              | code        | String             | code         | String           |
               | premieredOn | String             | premiered_on | Date             |
               | endedOn     | [String, NilClass] | ended_on     | [Date, NilClass] |
               ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~