refactoring class methods to a module

activerecord/lib/active_record/session_store.rb

@@ -49,8 +49,24 @@ module ActiveRecord
   # The example SqlBypass class is a generic SQL session store.  You may
   # use it as a basis for high-performance database-specific stores.
   class SessionStore < ActionDispatch::Session::AbstractStore
+    module ClassMethods # :nodoc:
+      def marshal(data)
+        ActiveSupport::Base64.encode64(Marshal.dump(data)) if data
+      end
+
+      def unmarshal(data)
+        Marshal.load(ActiveSupport::Base64.decode64(data)) if data
+      end
+
+      def drop_table!
+        connection.execute "DROP TABLE #{table_name}"
+      end
+    end
+
     # The default Active Record class.
     class Session < ActiveRecord::Base
+      extend ClassMethods
+
       ##
       # :singleton-method:
       # Customizable data column name.  Defaults to 'data'.
@@ -71,14 +87,6 @@ module ActiveRecord
           find_by_session_id(session_id)
         end
 
-        def marshal(data)
-          ActiveSupport::Base64.encode64(Marshal.dump(data)) if data
-        end
-
-        def unmarshal(data)
-          Marshal.load(ActiveSupport::Base64.decode64(data)) if data
-        end
-
         def create_table!
           connection.execute <<-end_sql
             CREATE TABLE #{table_name} (
@@ -89,10 +97,6 @@ module ActiveRecord
           end_sql
         end
 
-        def drop_table!
-          connection.execute "DROP TABLE #{table_name}"
-        end
-
         private
           def session_id_column
             'session_id'
@@ -173,6 +177,8 @@ module ActiveRecord
     # binary session data in a +text+ column.  For higher performance,
     # store in a +blob+ column instead and forgo the Base64 encoding.
     class SqlBypass
+      extend ClassMethods
+
       ##
       # :singleton-method:
       # Use the ActiveRecord::Base.connection by default.
@@ -208,14 +214,6 @@ module ActiveRecord
           end
         end
 
-        def marshal(data)
-          ActiveSupport::Base64.encode64(Marshal.dump(data)) if data
-        end
-
-        def unmarshal(data)
-          Marshal.load(ActiveSupport::Base64.decode64(data)) if data
-        end
-
         def create_table!
           connection.execute <<-end_sql
             CREATE TABLE #{table_name} (
@@ -225,10 +223,6 @@ module ActiveRecord
             )
           end_sql
         end
-
-        def drop_table!
-          connection.execute "DROP TABLE #{table_name}"
-        end
       end
 
       attr_reader :session_id, :new_record

activerecord/test/cases/session_store/session_test.rb

@@ -49,8 +49,11 @@ module ActiveRecord
 
       def test_find_by_session_id
         Session.create_table!
-        s = Session.create!(:data => 'world', :session_id => "10")
-        assert_equal s, Session.find_by_session_id("10")
+        session_id = "10"
+        s = Session.create!(:data => 'world', :session_id => session_id)
+        t = Session.find_by_session_id(session_id)
+        assert_equal s, t
+        assert_equal s.data, t.data
         Session.drop_table!
       end