1 files changed, 5 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/type/boolean.rb b/activerecord/lib/active_record/connection_adapters/type/boolean.rb
index c60a980e80..2337bdd563 100644
--- a/activerecord/lib/active_record/connection_adapters/type/boolean.rb
+++ b/activerecord/lib/active_record/connection_adapters/type/boolean.rb
@@ -9,7 +9,11 @@ module ActiveRecord
         private
 
         def cast_value(value)
-          Column.value_to_boolean(value)
+          if value == ''
+            nil
+          else
+            Column::TRUE_VALUES.include?(value)
+          end
         end
       end
     end