1 files changed, 21 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/type/boolean.rb b/activerecord/lib/active_record/connection_adapters/type/boolean.rb
new file mode 100644
index 0000000000..0d97379189
--- /dev/null
+++ b/activerecord/lib/active_record/connection_adapters/type/boolean.rb
@@ -0,0 +1,21 @@
+module ActiveRecord
+  module ConnectionAdapters
+    module Type
+      class Boolean < Value
+        def type
+          :boolean
+        end
+
+        private
+
+        def cast_value(value)
+          if value == ''
+            nil
+          else
+            Column::TRUE_VALUES.include?(value)
+          end
+        end
+      end
+    end
+  end
+end