1 files changed, 5 insertions, 5 deletions
diff --git a/activerecord/lib/active_record/type/string.rb b/activerecord/lib/active_record/type/string.rb
index 150defb106..2662b7e874 100644
--- a/activerecord/lib/active_record/type/string.rb
+++ b/activerecord/lib/active_record/type/string.rb
@@ -11,12 +11,12 @@ module ActiveRecord
         end
       end
 
-      def type_cast_for_database(value)
+      def serialize(value)
         case value
         when ::Numeric, ActiveSupport::Duration then value.to_s
         when ::String then ::String.new(value)
-        when true then "1"
-        when false then "0"
+        when true then "t"
+        when false then "f"
         else super
         end
       end
@@ -25,8 +25,8 @@ module ActiveRecord
 
       def cast_value(value)
         case value
-        when true then "1"
-        when false then "0"
+        when true then "t"
+        when false then "f"
         # String.new is slightly faster than dup
         else ::String.new(value.to_s)
         end